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Chloride-dependent enhancement of microbiologically influenced corrosion on X80 steel by Desulfovibrio desulfuricans:The critical role of extracellular polymeric substances 认领 引用
1
作者 Jia-Hang Li En-Ze Zhou +3 位作者 Zhong Li Di Wang Fu-Hui Wang Da-Ke Xu 《Petroleum Science》 SCIE EI CAS CSCD 2026年第4期2106-2119,共14页
Microbiologically influenced corrosion(MIC)and chloride ion attack represent principal factors contributing to the premature failure of marine metallic infrastructures.This study systematically investigated the MIC be... Microbiologically influenced corrosion(MIC)and chloride ion attack represent principal factors contributing to the premature failure of marine metallic infrastructures.This study systematically investigated the MIC behavior of X80 steel induced by sulfate-reducing bacteria(SRB)in simulated marine environments with varying chloride concentrations.Under sterile anaerobic conditions,elevated chloride concentrations slightly accelerated the corrosion of X80 steel.However,the biotic system(30 g/L Cl-)exhibited an order-of-magnitude increase in the corrosion rate of X80 steel compared to sterile controls.The relative corrosion severity in SRB-inoculated environments followed the descending order:30 g/L>10 g/L>20 g/L>5 g/L Cl-.Chloride concentration critically modulated SRB metabolic activity.Sulfate reduction rates at 5 g/L Cl-demonstrated a significant 85%reduction relative to optimal conditions at 20 g/L Cl-,correlating with near-complete bacterial growth inhibition.Intriguingly,suboptimal chloride environments(10 and 30 g/L Cl-)triggered substantial extracellular polymeric substance(EPS)production,serving as a protective barrier and ionic exchange medium.EPS exacerbated steel corrosion by accelerating anodic dissolution through complexation with ferrous ions.Fourier-transform infrared spectroscopy results confirmed that EPS contains redox-active functional groups.Injecting 1 g/L EPS into SRB broth increased the corrosion current density from 9.2±0.8μA/cm2 to 14.3±1.2μA/cm2.These findings provide new insights into the dual role of EPS in MIC processes,emphasizing its critical function in extracellular electron transfer-MIC mechanisms. 展开更多
关键词 Steel Chloride Sulfate-reducing bacteria Microbiologically influenced corrosion Extracellular polymeric substances Extracellular electron transfer
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Durability of Cement-Ferronickel Slag Composite Mortar under Different Excitation Methods:Frost Resistance,Carbonation Resistance and Chloride Ion Permeability 认领 引用
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作者 QIAO Hongxia SONG Yanning +3 位作者 FENG Qiong SUN Xiaoxia WEI Chao ZHENG Jianghua 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS CSCD 2026年第3期745-756,共12页
In order to explore the influence of different activation methods on the durability of cementferro nickel slag composite mortar,the durability of the composite mortar was evaluated by measuring the performance indexes... In order to explore the influence of different activation methods on the durability of cementferro nickel slag composite mortar,the durability of the composite mortar was evaluated by measuring the performance indexes of the composite mortar in the environment of freeze-thaw cycle,accelerated carbonization,and chloride ion penetration.The results show that the mechanical activation and alkali activator improve the reactivity of the cementitious system,and the enhancement of the filling effect and the increase of the hydration products improve the compactness of the internal structure,which not only enhances its frost resistance,but also slows down the transmission rate of CO2 in the accelerated carbonization environment and the ion penetration rate in the chloride ion erosion environment. 展开更多
关键词 ferronickel slag reactivity activation freeze-thaw cycles carbonization chloride ion permeability
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Study on the deactivation mechanism of mercury chloride catalyst employed for polyvinyl chloride production 认领 引用
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作者 Jiefeng Chen Wei Liu +6 位作者 Wei Zheng Mingguang Zhang Lijian Leng Zequn Yang Wenqi Qu Jianping Yang Hailong Li 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2026年第3期26-36,共11页
Mercury chloride catalyst is widely employed for the polyvinyl chloride(PVC)production in China,whereas the catalyst deactivation mechanism which is crucial for the design,regeneration,and disposal of deactivated cata... Mercury chloride catalyst is widely employed for the polyvinyl chloride(PVC)production in China,whereas the catalyst deactivation mechanism which is crucial for the design,regeneration,and disposal of deactivated catalyst is still unclear.Herein,the physical and chemical characteristics of fresh and deactivated catalysts were systematically investigated.The results show that chlorinated organic compounds,including 2-chloromethyl-1,3-dichloro-2-methylpropane(C5H9Cl3),1,3,3-trichloro-2-methyl-4-pentanone(C6H9Cl3O),and 1,3-dichloro-2-butene(C4H6Cl2),were identified as the dominant constituents of deposited carbon,which caused pore blockage and active site coverage.The content and species of mercury on the catalyst were changed after deactivation.The mercury content on the deactivated catalyst was decreased from 3.73%(mass)to 1.47%(mass).Nonlabile organic and elemental mercury instead of crystalline oxide-bound mercury dominate the mercury species on deactivated catalyst.The thermal stability of mercury species on the deactivated catalyst was reduced,in which the desorption peak temperature was decreased from 310℃to 285℃.The content of other active components,including potassium,zinc,and copper chlorides,also declined.These findings offer critical insights for the design of mercury chloride catalyst and the development of deactivated catalyst regene ration or disposal technologies. 展开更多
关键词 Mercury chloride catalyst Deactivation Mercury species distribution Carbon deposition
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High-performance bifunctional electrocatalyst(NiFe-LDH/MoNi4) with enhanced chloride corrosion resistance for achieving seawater overall-splitting at industrial temperature 认领 引用
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作者 Gang Zhao Wenbo Liao +4 位作者 Lan Mu Baojie Zhang Ning Zhao Tianyong Zhang Xijin Xu 《Chinese Chemical Letters》 SCIE CAS CSCD 2026年第5期526-531,共6页
Nickel-iron double hydroxides are corroded by Cl- during seawater electrolysis,which reduces their catalytic activity and stability.Here,a high-performance bifunctional electrocatalyst(NiFe-LDH/MoNi4)with enhanc... Nickel-iron double hydroxides are corroded by Cl- during seawater electrolysis,which reduces their catalytic activity and stability.Here,a high-performance bifunctional electrocatalyst(NiFe-LDH/MoNi4)with enhanced chloride corrosion resistance was synthesized.In the OER process,Mo element in the catalyst was reconstructed to form MoO42-,which repelled Cl- to prevent the catalyst from being corroded.Besides,the heterostructure of NiFe-LDH/MoNi4 decreased the reduction of HER active site during HER process(Mo element dissolves easily in alkaline media due to thermodynamic instability).Therefore,based on in-situ self-reconstruction of Mo element and heterostructure in alkaline seawater,NiFe-LDH/MoNi4delivered a current density of 10 mA/cm2 for the HER(OER)at industrial temperatures(80℃)with an overpotential of merely 32 mV(139 mV).Additionally,when NiFe-LDH/MoNi4 is employed as both the anode and cathode,a battery voltage of just 1.39 V(3.13 V)is sufficient to attain a current density of 10 mA/cm2(1 A/cm2).The system is also capable of sustained operation at a high current density of 500 mA/cm2 for a period of 50 h. 展开更多
关键词 Seawater electrolysis Chloride corrosion resistance Bifunctional electrocatalyst Industrial temperature High current density
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Hybrid explainable machine learning models for predicting rapid chloride penetration test and sorptivity of self-compacting concrete with fly ash and silica fume under thermal exposure 认领 引用
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作者 Divesh Ranjan KUMAR Shashikant KUMAR +1 位作者 Teerapong SENJUNTICHAI Sakdirat KAEWUNRUEN 《ENGINEERING Structure and Civil Engineering》 SCIE EI CAS CSCD 2026年第1期96-126,共31页
In this study,a comprehensive data set comprising 360 rapid chloride penetration test(RCPT)and 360 sorptivity measurements from 60 self-compacting concrete(SCC)mixtures with varying fly ash(FA)and silica fume(SF)conte... In this study,a comprehensive data set comprising 360 rapid chloride penetration test(RCPT)and 360 sorptivity measurements from 60 self-compacting concrete(SCC)mixtures with varying fly ash(FA)and silica fume(SF)contents and different temperature exposures was analyzed.To reduce reliance on labor-intensive experiments,four hybrid predictive models were developed by integrating eXtreme gradient boosting(XGBoost)with metaheuristic optimization algorithms,namely Particle Swarm Optimization,Whale Optimization Algorithm(WOA),and African Vultures Optimization Algorithm.While the primary focus is on enhancing predictive accuracy,with the XGBoostWOA model achieving the best performance,the modeling framework also provides a foundation for future exploration of the influence of supplementary cementitious materials and curing conditions on SCC durability.Feature importance analysis identified temperature as the most critical variable influencing both RCPT(permutation score:0.649,SHapley Additive exPlanations(SHAP):110.626)and sorptivity(permutation score:0.993,SHAP:2.694).Furthermore,Monte Carlo simulations incorporating±5%input noise confirmed the accuracy under uncertain input variable.To enhance practical utility,a Python-based Graphical User Interface was developed using Tkinter,enabling users to predict RCPT and sorptivity values for SCC mixes containing FA and SF Beyond offering an efficient alternative to traditional laboratory testing,the developed artificial intelligence(AI)models have revealed new correlations between mix composition and durability performance. 展开更多
关键词 metaheuristic optimization technique rapid chloride permeability SCC sorptivity supplementary cementitious materials
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Degradation and utilization of polyvinyl chloride(PVC):Challenges and opportunities toward a circular economy 认领 引用
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作者 Rui Huang Jiaolong Meng Xuefeng Jiang 《Green Energy & Environment》 SCIE EI CAS CSCD 2026年第2期283-316,共34页
Polyvinyl chloride(PVC)poses persistent environmental and recycling challenges due to its high chlorine content,complex additives,and structural resistance to degradation.Recent research has shifted focus from traditi... Polyvinyl chloride(PVC)poses persistent environmental and recycling challenges due to its high chlorine content,complex additives,and structural resistance to degradation.Recent research has shifted focus from traditional disposal methods toward chemically informed strategies that valorize PVC within the framework of a circular economy.This review systematically summarizes three emerging pathways for PVC transformation.The first involves catalytic deconstruction into small molecules such as chlorinated olefins,hydrocarbons,and oxygenates through thermal,photocatalytic,and electro-assisted processes.The second explores backbone-preserving reconstruction into functional materials,including porous carbons,membranes,ion-conducting films,and vitrimer-type polymers by leveraging selective dechlorination and structural reprogramming.The third addresses the co-processing of PVC with mixed plastic wastes through synergistic catalytic systems that tolerate chlorine-rich streams and promote selective transformation.Across all pathways,emphasis is placed on structure-property correlations,chlorine management,additive compatibility,and downstream utility.Summary tables and schematic diagrams are included to compare system efficiencies,product selectivities,and application scopes.By integrating mechanistic understanding with materials innovation,this review highlights how PVC can be reimagined as a tunable molecular platform rather than a persistent pollutant. 展开更多
关键词 Polyvinyl chloride(PVC) Chemical recycling Functional material reconstruction Sustainable polymer upcycling
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Prioritized Lithium Extraction From Spent Lithium-Ion Batteries via Low-Temperature Chlorination Mediated by Seawater-Derived Chlorides 认领 引用
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作者 Bei-Lei Zhang Xiang Chen +5 位作者 Hao Wang Feng-Yin Zhou Xin Qu Jing Li En-Bo Shangguan Hua-Yi Yin 《Rare Metals》 SCIE EI CAS CSCD 2026年第2期395-408,共14页
Chlorination roasting has emerged as a promising pyrometallurgical strategy for the selective recovery of lithium from spent lithium-ion batteries (LIBs).In this study,a natural roasting agent,seawater-derived chlorid... Chlorination roasting has emerged as a promising pyrometallurgical strategy for the selective recovery of lithium from spent lithium-ion batteries (LIBs).In this study,a natural roasting agent,seawater-derived chlorides,was employed to selectively extract lithium from spent LiNi0.5Co0.2Mn0.3O2(NCM523) cathode.MgCl2·6H2O,a main component of seawater desalination by-products,was investigated as a roasting agent to explore its chlorination mechanism and optimal roasting conditions.Under optimal roasting conditions (550 ℃,4 h,NCM523/MgCl2·6H2O mass ratio of 1:3,air atmosphere),lithium was selectively converted into soluble LiCl with a leaching efficiency of 98.36%,whereas over 99.99% of the transition metals remained in the form of insoluble metal oxides,achieving the highly selective pre-extraction of lithium.In contrast,the roasting of anhydrous MgCl2 is difficult to achieve the selective conversion of lithium,accompanied by the formation of partial transition metal chlorides.Thermodynamic analysis reveals that the formation of LiCl is thermodynamically more favorable,and the DFT calculation indicates that longer Li-O bonds within the NCM523 structure break more easily,facilitating lithium to escape from the lattice to achieve selective conversion.Unlike the solid-solid reaction of anhydrous MgCl2 with NCM523,the roasting process of MgCl2·6H2O that occurs due to its own thermal hydrolysis is a gas-solid chlorination process,which selectively chlorinates Li in NCM523 using the released HCl and Cl2 gases.Additionally,the chlorides extracted from the seawater as a chlorination agent further confirmed the effectiveness of the recovery process.Economic and environmental assessments demonstrate that this strategy reduces energy consumption and greenhouse gas (GHG) emissions,confirming its sustainability and cost-effectiveness.Overall,this work offers an efficient and economic approach for recovering valuable metals from spent LIB cathode. 展开更多
关键词 chlorination roasting MgCl2⋅6H2O seawater-derived chlorides selectively extracting lithium spent lithium-ion batteries
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Photoexcited Ni-catalyzed regioselective cross-coupling of aryl chlorides with multifluoroarenes 认领 引用
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作者 Jie Liu Jialin Ming Da-Gang Yu 《Chinese Chemical Letters》 SCIE CAS CSCD 2026年第5期1-3,共3页
Fluorine-containing compounds,characterized by low polarity,weak intermolecular interactions,and smaller surface tension relative to hydrocarbons,are privileged molecules with broad applications across diverse fields,... Fluorine-containing compounds,characterized by low polarity,weak intermolecular interactions,and smaller surface tension relative to hydrocarbons,are privileged molecules with broad applications across diverse fields,including medicinal chemistry,agrochemistry,and materials science[1].Among them,polyfluoroarenes have attracted extensive attention from chemists(Fig.1a)[2],as seven of them contain polyfluoroareness in Top 200Pharmaceuticals by Retail Sales.Given the prevalence of polyfluoroareness,numerous catalytic strategies have been developed for their synthesis through transition-metal catalysis,photocatalysis,or electrochemistry[3]. 展开更多
关键词 materials science low polarity weak intermolecular interactions aryl chlorides multifluoroarenes photoexcited medicinal chemistryagrochemistryand ni catalyzed
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Thermomechanical and microstructural characteristics of cemented backfill incorporating low-dosage polyvinyl chloride powder 认领 引用 被引量：1
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作者 Chao Zhang Jinping Guo +3 位作者 Tingting Li Weidong Song Yuan Wang Abbas Taheri 《International Journal of Minerals,Metallurgy and Materials》 SCIE EI CAS CSCD 2026年第7期2206-2219,共14页
With the increasing mining depth,heat hazards have become a critical challenge in deep underground operations.This study explores the incorporation of polyvinyl chloride(PVC)powder as a partial cement replacement in c... With the increasing mining depth,heat hazards have become a critical challenge in deep underground operations.This study explores the incorporation of polyvinyl chloride(PVC)powder as a partial cement replacement in cemented backfill to improve thermal insulation and promote sustainable waste utilization.Five mix designs were prepared with 0,5wt%,10wt%,15wt%,and 20wt%PVC,and their thermomechanical behaviors were systematically evaluated through uniaxial compressive strength(UCS)testing,thermal parameter measurements,energy evolution analysis,and micro structural characterization via scanning electron microscopy.The results showed that the UCS and energy absorption capacity first increased and then decreased with PVC addition,reaching an optimum at10wt%PVC,which achieved an 87.5% higher strength and improved energy dissipation compared with the control.The thermal conductivity and specific heat capacity progressively decreased with increasing PVC content,with the maximum reductions of 23.0% and 40.2%,respectively,for 20wt%PVC.Microstructural analysis confirmed that moderate PVC addition reduced the porosity and enhanced the internal compactness,whereas excessive PVC likely inhibited calcium silicate hydrate gel formation and weakened the structural integrity.A PVC dosage of 10wt% was identified as the optimal replacement level,providing a favorable balance between strength and thermal insulation.This study provides new insights into sustainable backfill design and offers a practical strategy for mitigating thermal hazards in deep mining environments. 展开更多
关键词 cemented backfill polyvinyl chloride uniaxial compressive strength thermal properties microstructure
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Synergistic antibacterial effect and mechanism of benzalkonium chloride and polymyxin B against Pseudomonas aeruginosa 认领 引用
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作者 Caihong Wang Jiaxin Zhang +3 位作者 Tong Li Jingwei Wang Dan Xu Qiao Ma 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2026年第1期555-564,共10页
Benzalkonium chloride(BAC)is widely employed as a broad-spectrum biocide and has emerged as a significant environmental pollutant.Polymyxin B(PB)serves as the last-line defense for the treatment of Gram-negative patho... Benzalkonium chloride(BAC)is widely employed as a broad-spectrum biocide and has emerged as a significant environmental pollutant.Polymyxin B(PB)serves as the last-line defense for the treatment of Gram-negative pathogens.Previous studies reported that BAC-adapted Pseudomonas aeruginosa increased the tolerance to PB.Herein,we present the novel finding that the combination of BAC and PB exhibited synergistic antibacterial effects against P.aeruginosa.Time-killing assay demonstrated a significant reduction in bacterial cell viability.Scanning electron microscopy,zeta potential analysis,hydrophobicity measurements,and fluorescence probe analyses collectively revealed severe disruption of the cell envelope and membrane potential induced by the combination of BAC and PB.Transcriptomic analysis revealed that the BAC-PB combination notably downreg-ulated the expression of genes involved in lipid A modification and cell envelope production,including phoPQ,pmrAB,bamABCDE,lptABCDEG,lolB,yidC,and murJ.Additionally,the combination group exhibited augmented production of reactive oxygen species and diminished ATP synthesis.The expression of the genes associated with substance metabolism and energy generation was significantly impeded.This study provides significant implica-tions for the interactions of biocides and antibiotics on Gram-negative pathogens,while also addressing antibiotic resistance and developing the external treatment strategy for Pseudomonas-infected wounds and burns. 展开更多
关键词 Pseudomonas aeruginosa Benzalkonium chloride Polymyxin B Synergistic effect Membrane disruption
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Targeted delivery of nitidine chloride inducing ferroptosis and necroptosis as a novel anti-lung squamous cell carcinoma strategy 认领 引用
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作者 Xiaoqin Pan Changsheng Li +10 位作者 Xinyi Ai Changqing Tao Jingchuan He Tingting Li Zhihua Deng Xiaocheng Mo Ya Chen Xiumei Qin Dongmei Wang Ronghua Jin Jie Yang 《Chinese Chemical Letters》 SCIE CAS CSCD 2026年第6期477-483,共7页
Nitidine chloride(NC)exhibits potent antitumor activity through ferroptosis induction.However,its clinical application is limited by poor aqueous solubility and non-selective cytotoxicity.To overcome these challenges,... Nitidine chloride(NC)exhibits potent antitumor activity through ferroptosis induction.However,its clinical application is limited by poor aqueous solubility and non-selective cytotoxicity.To overcome these challenges,we developed a pH-responsive delivery system(HD@NC@MOF),combining a hyaluronic acid(HA)-cloaked and mixed-valence iron-based metal-organic framework(Fe-MOF),enabling strategic targeting of lung squamous cell carcinoma(LUSC)cells via CD44 receptor recognition.Within the acidic intracellular microenvironment,HD@NC@MOF co-releases NC and iron ions,triggering a profound reactive oxygen species(ROS)surge,and ultimately inducing ferroptosis and necroptosis through the solute carrier family 7 member 11(SLC7A11)/glutathione peroxidase 4(GPX4)and receptor-interacting serinehreonine-protein kinase 1(RIPK1)eceptor-interacting serinehreonine-protein kinase 3(RIPK3)/mixed lineage kinase domain-like protein(MLKL)pathways.In vitro,HD@NC@MOF exhibited significantly enhanced selective cytotoxicity towards LUSC cells compared to free NC(selectivity index improved from 0.54 to 2.58).Mechanistic studies revealed that NC stimulated mitochondrial ROS production,synergizing with Fe-MOF-derived iron to amplify oxidative stress.In vivo,HD@NC@MOF achieved a 69.02%tumor inhibition rate(1.72-fold higher than free NC)with minimal systemic toxicity.This work highlighted the potential of HD@NC@MOF as an efficient and targeted carrier for NC in LUSC chemotherapy. 展开更多
关键词 Nitidine chloride Mixed-valence metal-organic frameworks Necroptosis Ferroptosis Lung squamous cell carcinoma
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Adaptive defect passivation of perovskite solar cells with 2-mercaptoethylammonium chloride advancing over 2000 h photothermal stability 认领 引用
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作者 Natalia N.Udalova Elizaveta M.Nemygina +5 位作者 Nikita N.Chertorizhskiy Andrei S.Tutantsev Wang Chengyuan Nikolai A.Belich Eugene A.Goodilin Alexey B.Tarasov 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2026年第6期355-364,I0010,共10页
One of the key challenges in advancing perovskite solar cells(PSCs)is the development of effective defect-passivation strategies capable of overcoming the intrinsically limited photothermal stability of hybrid halide ... One of the key challenges in advancing perovskite solar cells(PSCs)is the development of effective defect-passivation strategies capable of overcoming the intrinsically limited photothermal stability of hybrid halide perovskites.Increasing attention is being directed toward“adaptive”passivators that not only suppress the initial defect density but also interact as an effective shuttle with degradation products and external oxidants,thereby enhancing long-term device stability.In this work,focused on enhancing the operational stability of PSCs,we introduce 2-mercaptoethylammonium chloride(MEACl)as a multifunctional,adaptive bulk additive that markedly improves PSCs operational stability through a redoxshuttle mechanism based on the reversible S–H⇄S–S transformation.This mechanism enables MEACl to neutralize both external oxygen and in situ generated degradation species such as I⁰/I2 and Pb⁰.Under the ISOS-L-3 accelerated aging protocol,PSCs incorporating 0.1–0.5 mol.%MEACl exhibit a threefold enhancement in photothermal stability at 85℃and a fourfold improvement at 65℃.These results identify 2-mercaptoethylammonium chloride as a highly promising additive for constructing durable perovskite absorbers and next-generation stable optoelectronic devices. 展开更多
关键词 Hybrid halide perovskites Perovskite solar cells Photothermal stability Defect passivation Adaptive passivation 2-Mercaptoethylammonium chloride Redox-shuttle mechanism
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Plasticizing and Strengthening Poly(vinyl chloride)with Structurally Different Ionic Liquids 认领 引用
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作者 Xiang Gao Ji-Shuo Ye +2 位作者 Zhi-Ji Liu Jian Wu Ning-Zhong Bao 《Chinese Journal of Polymer Science》 SCIE EI CAS CSCD 2026年第6期1912-1925,I0019,共14页
This study simultaneously plasticizes and strengthens poly(vinyl chloride)(PVC)with structurally different ionic liquids(ILs),namely monomeric[Bmim]NTf2,linear polymerized PImC6NTf2,and branched polymerized P... This study simultaneously plasticizes and strengthens poly(vinyl chloride)(PVC)with structurally different ionic liquids(ILs),namely monomeric[Bmim]NTf2,linear polymerized PImC6NTf2,and branched polymerized P(VIm-4)NTf2.Notably,PImC6NTf2exhibits the best performance.Dynamic mechanical analysis reveals that the glass transition temperature of PImC6NTf2/PVC composite film is lower than that of dioctyl phthalate(DOP)/PVC,indicating enhanced processability.Compared with neat PVC film,the 4%PImC6NTf2/PVC film exhibits 747.2%,165.4%,and 49.1%increases in elongation at break,tensile strength,and Young's modulus,respectively,along with a 27.4-fold rise in fracture energy.Additionally,the thermal stability,hydrophobicity,and wear resistance of PVC are also improved.These findings demonstrate the great potential of linear polymerized ILs as innovative PVC plasticizers. 展开更多
关键词 Poly(vinyl chloride) Ionic liquid Plasticizer High toughness High strength
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Rapid and Controlled Reduction of Acyl Chlorides to Aldehydes Using Pinacolborane 认领 引用
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作者 Liu Huiyang Chen Du +2 位作者 Su Yijin Zhang Peng Liu Chao 《有机化学》 SCIE CAS CSCD 北大核心 2026年第2期564-569,共6页
A method for the rapid reduction of acyl chlorides to aldehydes was developed using pinacolborane(HBpin)as the reducing agent.The method exhibits excellent generality for both aromatic and aliphatic substrates,affordi... A method for the rapid reduction of acyl chlorides to aldehydes was developed using pinacolborane(HBpin)as the reducing agent.The method exhibits excellent generality for both aromatic and aliphatic substrates,affording aldehydes in isolated yields of up to 88%with broad functional group tolerance,including cyano,halogen,alkenyl,ketone,and ester groups.Moreover,the method enables gram-scale aldehyde synthesis and shows high efficiency in reducing in situ generated acyl chlorides,thereby enhancing its synthetic practicality. 展开更多
关键词 pinacolborane reduction acyl chlorides aldehydes
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The overlooked role of benzalkonium chlorides in enhancing chlorination of organic contaminants 认领 引用
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作者 Jing Yang Yongjie Fan +1 位作者 Jia Tang Kunde Lin 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2026年第8期402-410,共9页
Benzalkonium chlorides(BACs),a major class of quaternary ammonium compounds,are widely used disinfectants in hospital settings and commonly enter wastewater treatment systems.Although the role of tertiary amines in pr... Benzalkonium chlorides(BACs),a major class of quaternary ammonium compounds,are widely used disinfectants in hospital settings and commonly enter wastewater treatment systems.Although the role of tertiary amines in promoting disinfectant byproduct(DBP)formation has been well documented,the contribution of BACs to chlorination reactions has been largely overlooked.This study demonstrates that BACs significantly enhance the chlorination of phenol,promoting the formation of toxic chlorophenols and their downstream transformation products.The enhancing effect is attributed to the generation of highly reactive R3N+-Cl intermediates via BAC oxidation by chlorine.The strong electrophilic nature of R3N+-Cl facilitates chlorination,leading to the increased formation of 2,4-dichlorophenol and 2,4,6-trichlorophenol,with shorter-chain BACs(C12)exhibiting stronger effects than longer-chain counterparts(C14,C16).Further oxidation of 2,4,6-trichlorophenol leads to the formation of trichloro-hydroxy-cyclopentene-dione,a highly toxic DBP.Density functional theory calculations suggest that while the electronic properties of BAC-derived chloramine intermediates are similar,the reactivity of longerchain BACs decreases due likely to lower aqueous solubility and diffusion rates.These findings highlight BACs as important contributors to chlorinated DBP formation in chlorination processes and underscore the need to assess their impact in wastewater treatment,particularly in hospital effluents with high BAC concentrations. 展开更多
关键词 Benzalkonium chlorides Chlorine disinfection Disinfection by-products Emerging contaminants Halogenated organic pollutants
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Resistance of Calcium Sulphoaluminate Cement-based Coral Sand Mortar to Chloride Ingress 认领 引用
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作者 YU Zhuqing LONG Yu WANG Haonan 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS CSCD 2026年第1期107-115,共9页
The utilization of discarded coral debris in cementitious material is a prominent research area for island construction projects.The aim of this study is to explore the use of environment-friendly cement and waste cor... The utilization of discarded coral debris in cementitious material is a prominent research area for island construction projects.The aim of this study is to explore the use of environment-friendly cement and waste coral sand in the preparation of coral mortar,while investigating its performance when exposed to a chloride environment.Three types of low-carbon cements were employed,such as rapid hardening sulphoaluminate(RCSA)cement,high belite sulphoaluminate(HBCSA)cement,and slag sulphoaluminate cement(SSC).The coulomb electric flux,mechanical properties,free chloride content,and mass change of the cement mortar under exposed to 3.5 wt%NaCl solution were examined at various time intervals.X-ray diffraction analysis was conducted to identify the mineral phases present in the mortar samples.The results demonstrate that the flexural and compressive strength of the mortar consistently increase throughout the 360 days chloride exposure period.Incorporating coral sand into SSC-based mortars enhances their compressive strength from day 28 up until day 360.However,it adversely affects the strength of HBCSA-based mortars.The behavior of mortars exposed to a chloride-rich environment is closely associated with the amount of C-S-H gel present within them.SSC generates a significant quantity of C-S-H gel which possesses a large specific surface area capable of absorbing more chloride ions thereby reducing their concentration within the mortar matrix as well as increasing its mass and improving resistance against chloride ion penetration. 展开更多
关键词 calcium sulphoaluminate cement coral sand chloride penetration coral mortar
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Dual Chloride Confinement in Noble Metal-Doped NiV LDH Catalysts Enables Stable Industrial-Level Seawater Electrolysis 认领 引用
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作者 Kai Liu Yaohai Cai +5 位作者 Xiaotian Wei Lihang Qu Jianxi Lu Yingwei Qi Zhenbo Wang Dong Liu 《Nano-Micro Letters》 SCIE EI CAS CSCD 2026年第6期809-822,共14页
Seawater electrolysis is an appealing route toward sustainable hydrogen production,yet its practical deployment is hindered by severe chloride-induced corrosion and parasitic chlorine oxidation.Here,we report noble me... Seawater electrolysis is an appealing route toward sustainable hydrogen production,yet its practical deployment is hindered by severe chloride-induced corrosion and parasitic chlorine oxidation.Here,we report noble metal-doped NiV layered double hydroxides(LDHs)that integrate electronic modulation with a dual chloride confinement mechanism.Ir incorporation simultaneously establishes strong Ir-Cl coordination and dynamically regenerated VO43-layers,producing an adaptive electrostatic shield that effectively suppresses chloride penetration.As a result,Ir-NiV LDH delivers nearly 100%oxygen evolution reaction selectivity and outstanding stability over2750 h at 500 mA cm-2.Meanwhile,Ru doping optimizes the hydrogen evolution pathway,enabling a low overpotential of 195 mV and>2350 h durability.When paired in a twso-electrode electrolyzer,the Ru-NiVLDH‖Ir-NiVLDH system exhibits industrial-level performance and unprecedented robustness in alkaline seawater.This dual chloride confinement concept provides a general framework for catalyst design in corrosive ionic environments,extending beyond seawater splitting toward other electrochemical energy conversion processes. 展开更多
关键词 Seawater electrolysis Chloride confinement NiV LDH Noble metal doping Long-term stability
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BaTiO3 Nanoparticle-Induced Interfacial Electric Field Optimization in Chloride Solid Electrolytes for 4.8V All-Solid-State Lithium Batteries 认领 引用 被引量：1
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作者 Qingmei Xiao Shiming Huang +4 位作者 Donghao Liang Cheng Liu Ruonan Zhang Wenjin Li Guangliang Gary Liu 《Nano-Micro Letters》 SCIE EI CAS CSCD 2026年第2期404-420,共17页
Chloride-based solid electrolytes are considered promising candidates for next-generation high-energy-density all-solid-state batteries(ASSBs).However,their relatively low oxidative decomposition threshold(~4.2 V vs.L... Chloride-based solid electrolytes are considered promising candidates for next-generation high-energy-density all-solid-state batteries(ASSBs).However,their relatively low oxidative decomposition threshold(~4.2 V vs.Li+/Li)constrains their use in ultrahighvoltage systems(e.g.,4.8 V).In this work,ferroelectric Ba TiO3(BTO)nanoparticles with optimized thickness of~50-100 nm were successfully coated onto Li2.5Y0.5Zr0.5Cl6(LYZC@5BTO)electrolytes using a time-efficient ball-milling process.The nanoparticle-induced interfacial ionic conduction enhancement mechanism contributed to the preservation of LYZC’s high ionic conductivity,which remained at 1.06 m S cm-1for LYZC@5BTO.Furthermore,this surface electric field engineering strategy effectively mitigates the voltage-induced self-decomposition of chloride-based solid electrolytes,suppresses parasitic interfacial reactions with single-crystal NCM811(SCNCM811),and inhibits the irreversible phase transition of SCNCM811.Consequently,the cycling stability of LYZC under high-voltage conditions(4.8 V vs.Li+/Li)is significantly improved.Specifically,ASSB cells employing LYZC@5BTO exhibited a superior discharge capacity of 95.4 m Ah g-1over 200 cycles at 1 C,way outperforming cell using pristine LYZC that only shows a capacity of 55.4 m Ah g-1.Furthermore,time-of-flight secondary ion mass spectrometry and X-ray photoelectron spectroscopy analysis revealed that Metal-O-Cl by-products from cumulative interfacial side reactions accounted for 6% of the surface species initially,rising to 26% after 200 cycles in pristine LYZC.In contrast,LYZC@5BTO limited this increase to only 14%,confirming the effectiveness of BTO in stabilizing the interfacial chemistry.This electric field modulation strategy offers a promising route toward the commercialization of high-voltage solid-state electrolytes and energy-dense ASSBs. 展开更多
关键词 All-solid-state batteries Chloride electrolyte Ferroelectric BaTiO3 High-voltage stability Surface modification
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U-shape association between serum chloride and in-hospi-tal mortality in patients with coronary heart disease and diabetes mellitus in intensive care units:Data from the MIMIC-Ⅳdatabase 认领 引用
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作者 LIU Ting-ting ZHANG Lu +4 位作者 MA Kai-ying HU Chun-jie LV Ping ZHANG Rui-gui YANG Liu 《South China Journal of Cardiology》 CAS 2026年第1期32-44,共13页
Background Chloride,the most abundant anion in extracellular fluid,plays a crucial role in maintaining ho-meostasis.Previous studies have shown that hypochloremia independently predicts adverse outcomes in various cli... Background Chloride,the most abundant anion in extracellular fluid,plays a crucial role in maintaining ho-meostasis.Previous studies have shown that hypochloremia independently predicts adverse outcomes in various clinical settings.However,the association between serum chloride levels and in-hospital mortality in intensive care unit(ICU)patients with coronary heart disease(CHD)and diabetes mellitus(DM)remains unclear.This study aimed to determine whether initial serum chloride is associated with in-hospital mortality in this population.Meth-ods We enrolled 4343 ICU patients with CHD and DM and categorized them into three groups based on artificial-ly defined cutoffs of serum chloride levels:low(≤100 mmol/L),middle(100-110 mmol/L),and high(>110 mmol/L).The relationship between admission serum chloride and in-hospital mortality was first analyzed using restricted cubic spline regression(RCS)to evaluate nonlinearity.Threshold and saturation effects were examined to confirm the findings.Multivariable logistic regression was used to assess the association between serum chloride and in-hos-pital mortality.Results A U-shaped relationship was observed between serum chloride and in-hospital mortality,with the lowest risk at a threshold of 107 mmol/L.Below and above this threshold,the odds ratios(ORs)were 0.95(95%CI:0.93-0.97,P110 mmol/L)groups had ORs for in-hospital mortality of 1.83(95%CI:1.42-2.36,P<0.0001)and 2.46(95%CI:1.43-4.23,P=0.0011),respectively.Both low and high serum chloride levels were associated with increased in-hospital mortality risk.Conclusions This study identified a U-shaped association between serum chloride levels and in-hospital mortality in ICU patients with CHD and DM.Independent risk factors for increased mortality in this study constitut-ed both low and high serum chloride concentrations. 展开更多
关键词 Serum chloride Coronary heart disease Diabetes mellitus In-hospital mortality
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Advances in the preparation process and mechanism study of high-purity anhydrous magnesium chloride from magnesium chloride hexahydrate 认领 引用 被引量：1
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作者 Hui Ming Xudong Zhang +2 位作者 Xinping Huang Lihua Cheng Libo Zhang 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2025年第2期1-23,共23页
In the extraction of potassium from salt lakes,Mg is abundant in the form of bischofite(MgCl2·6H2O),which is not utilized effectively,resulting in the waste of resources and environmental pressure.Anhydrous... In the extraction of potassium from salt lakes,Mg is abundant in the form of bischofite(MgCl2·6H2O),which is not utilized effectively,resulting in the waste of resources and environmental pressure.Anhydrous MgCl2 prepared by the dehydration of bischofite is a high-quality raw material for the production of Mg.However,direct calcination of MgCl2·6H2O in industrial dehydration processes leads to a large amount of hydrolysis.The by-products are harmful to the electrolysis process of Mg,causing problems such as sludge formation,low current efficiency,and corrosion in the electrodes.To obtain high-purity anhydrous MgCl2,different advanced dehydration processes have been proposed.In this review,we focus on the recent progress of the dehydration process.Firstly,we discuss the molecular structure of MgCl2·6H2O and explain the reason why much hydrolysis occurs in dehydration.Secondly,we introduce the specific dehydration processes,mainly divided into direct dehydration processes and indirect dehydration processes.The direct dehydration processes are classified into gas protection heating and molecular sieve dehydration process.Indirect dehydration processes are classified into thermal dehydration of ammonium carnallite(NH4Cl·MgCl2·6H2O),thermal dehydration of potassium carnallite(KCl·MgCl2·6H2O),thermal decomposition of the[HAE]Cl·MgCl2·6H2O,organic solvent distillation,ionic liquid dehydration process and ammonia complexation process.In the meanwhile,purity of anhydrous MgCl2 of each dehydration process,as well as the advantages and disadvantages,is discussed.The characteristics of different processes with a simple economic budget are also given in this paper.Finally,the main challenges are evaluated with suggested directions in the future,aiming to guide the synthesis of high-purity anhydrous MgCl2. 展开更多
关键词 Qinghai salt lake Magnesium chloride hexahydrate Anhydrous magnesium chloride Pyrolysis Hydrolysis Solution
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