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The influence of temperature on flow-induced forces on quartz-crystal-microbalance sensors in a Chinese liquor identification electronic-nose: three-dimensional computational fluid dynamics simulation and analysis 认领 引用 被引量：3
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作者 Qiang LI Yu GU Huatao WANG 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI CSCD 2019年第9期1301-1312,共12页
An electronic-nose is developed based on eight quartz-crystal-microbalance (QCM) gas sensors in a sensor box, and is used to detect Chinese liquors at room temperature. Each sensor is a highly-accurate and highly-sens... An electronic-nose is developed based on eight quartz-crystal-microbalance (QCM) gas sensors in a sensor box, and is used to detect Chinese liquors at room temperature. Each sensor is a highly-accurate and highly-sensitive oscillator that has experienced airflow disturbances under the condition of varying room temperatures due to unstable flow-induced forces on the sensors surfaces. The three-dimensional (3D) nature of the airflow inside the sensor box and the interactions of the airflow on the sensors surfaces at different temperatures are studied by computational fluid dynamics (CFD) tools. Higher simulation accuracy is achieved by optimizing meshes, meshing the computational domain using a fine unstructural tetrahedron mesh. An optimum temperature, 30 ℃, is obtained by analyzing the distributions of velocity streamlines and the static pressure, as well as the flow-induced forces over time, all of which may be used to improve the identification accuracy of the electronic-nose for achieving stable and repeatable signals by removing the influence of temperature. 展开更多
关键词 computational fluid dynamics (CFD) temperature quartz-crystalmicrobalance (QCM) gas sensor electronic nose identification accuracy
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Solvents adjusted pure phase CoCO3 as anodes for high cycle stability 认领 引用 被引量：6
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作者 Liming LIU Xiaoxiao HUANG +8 位作者 Zengyan WEI Xiaoming DUAN Bo ZHONG Long XIA Tao ZHANG Huatao WANG Dechang JIA Yu ZHOU Rui ZHANG 《Journal of Advanced Ceramics》 SCIE EI CAS CSCD 2021年第3期509-519,共11页
CoCO3 with high theoretical capacity has been considered as a candidate anode for the next generation of lithium-ion batteries(LIBs).However,the electrochemical performance of CoCO3 itself,especially the cyclic ... CoCO3 with high theoretical capacity has been considered as a candidate anode for the next generation of lithium-ion batteries(LIBs).However,the electrochemical performance of CoCO3 itself,especially the cyclic stability at high current density,hinders its application.Herein,pure phase CoCO3 particles with different particle and pore sizes were prepared by adjusting the solvents(diethylene glycol,ethylene glycol,and deionized water).Among them,CoCO3 synthesized with diethylene glycol(DG-CC)as the solvent shows the best electrochemical performance owing to the smaller particle size and abundant mesoporous structure to maintain robust structural stability.A high specific capacity of 690.7 mAh/g after 1000 cycles was achieved,and an excellent capacity retention was presented.The capacity was contributed by diverse electrochemical reactions and the impedance of DG-CC under different cycles was further compared.Those results provide an important reference for the structural design and stable cycle performance of pure CoCO3. 展开更多
关键词 lithium ion battery(LIB) cobalt carbonate solvothermal method morphological control solvent pure phase
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