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Development of Polymer Electrolyte Membranes for High Temperature PEFCs 认领 引用
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作者 A.Carbone R.Pedicini +2 位作者 A.Saccà I.Gatto E.Passalacqua 《复旦学报（自然科学版）》 CAS 北大核心 2007年第5期676-677,共2页
1 Introduction During the last decades the research has been devoted to the development of non-perfluorinated polymers[1,2], as an alternative to commercial perfluorosulphonic membranes. There are several non-perfluor... 1 Introduction During the last decades the research has been devoted to the development of non-perfluorinated polymers[1,2], as an alternative to commercial perfluorosulphonic membranes. There are several non-perfluorinated materials suitable for these systems that should have as a fundamental requirement a good thermal stability of the original polymer. The studied polymers consist of polyaromatic or polyetherocyclic repeat units like polyetheretherketone (PEEK). Many papers have been published about t... 展开更多
关键词 Polymer electrolyte membranes high temperature PEFCs
Comparative Study on Composite Electrodes for Medium Temperature PEFCs 认领 引用
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作者 I.Gatto A.Carbone +2 位作者 R.Pedicini A.Saccà E.Passalacqua 《复旦学报（自然科学版）》 CAS 北大核心 2007年第5期
1 Results The phenomena that affect the membranes could be found in the electrodes when they operate at medium temperature,due to the utilisation of Nafion as an ionomer in the catalytic layer.An approach to improve t... 1 Results The phenomena that affect the membranes could be found in the electrodes when they operate at medium temperature,due to the utilisation of Nafion as an ionomer in the catalytic layer.An approach to improve the mechanical properties of the ionomer in the catalytic layer was used: different inorganic compounds (zeolite,titania and zirconia),having different chemical-physical properties,were selected as inorganic fillers due to their water retention capacity and to act as mechanical reinforce by ... 展开更多
关键词 composite electrodes medium temperature inorganic compounds PEFC
以天然气为原料的燃料电池分布式供能技术路径研究 认领 引用 被引量：13
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作者 宋鹏飞 单彤文 +2 位作者 李又武 侯建国 王秀林 《现代化工》 CAS CSCD 北大核心 2020年第9期14-19,共6页
以天然气为原料的燃料电池分布式供能已经成为分布式能源发展的新趋势之一。基于不同种类燃料电池的工作原理和特点,总结了4种典型的燃料电池分布式供能技术路径,对每种路径的工艺特点和应用案例进行了分析,梳理了目前仍有待解决的问题... 以天然气为原料的燃料电池分布式供能已经成为分布式能源发展的新趋势之一。基于不同种类燃料电池的工作原理和特点,总结了4种典型的燃料电池分布式供能技术路径,对每种路径的工艺特点和应用案例进行了分析,梳理了目前仍有待解决的问题,对燃料电池分布式供能未来的发展提出建议。结论认为4种燃料电池供能路径技术上都有可行性,燃料电池供能效率明显高于传统供能模式,小微型家用燃料电池分布式可采用PEFC和SOFC,MCFC和SOFC更适合基荷性连续运行的大、中型电站。 展开更多
关键词 PEFC MCFC SOFC 燃料电池 分布式 氢能
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森林认证对生物多样性影响研究进展 认领 引用 被引量：9
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作者 王文霞 陈绍志 +2 位作者 胡延杰 黄松林 张天祥 《世界林业研究》 CSCD 北大核心 2017年第6期1-5,共5页
维护森林生态系统的完整性,尤其是保护生物多样性是开展森林认证的重要目的之一。文中概述2大国际森林认证体系(FSC和PEFC)认证标准中有关生物多样性保护的要求,分析森林认证对生物多样性的影响,探讨现有认证标准与实现生物多样性保护... 维护森林生态系统的完整性,尤其是保护生物多样性是开展森林认证的重要目的之一。文中概述2大国际森林认证体系(FSC和PEFC)认证标准中有关生物多样性保护的要求,分析森林认证对生物多样性的影响,探讨现有认证标准与实现生物多样性保护之间的差距。分析表明,森林认证对生物多样性的保护具有积极作用,森林认证可作为促进生物多样性保护的有力工具;由于受到诸多因素的影响,在全球认证体系中生物多样性保护标准和指标的确立普遍缺乏科学数据支撑,不同区域差异较大,且生物多样性的监测和评估相对滞后。森林认证对全球森林资源的可持续发展具有重要的意义,生物多样性保护工作将成为推动森林认证持续发展的重要力量。 展开更多
关键词 森林认证 生物多样性 森林经营 动植物保护 FSC PEFC
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CO removal by two-stage methanation for polymer electrolyte fuel cell 认领 引用 被引量：5
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作者 Zhiyuan Li Wanliang Mi +3 位作者 Juan Gong Zhenlong Lu Lihao Xu Qingquan Su 《Journal of Natural Gas Chemistry》 2008年第4期359-364,共6页
In order to remove CO to achieve lower CO content of below 10 ppm in the CO removal step of reformer for polymer electrolyte fuel cell(PEFC)co-generation systems,CO preferential methanation under various conditions we... In order to remove CO to achieve lower CO content of below 10 ppm in the CO removal step of reformer for polymer electrolyte fuel cell(PEFC)co-generation systems,CO preferential methanation under various conditions were studied in this paper.Results showed that,with a single kind of catalyst,it was difficult to reach both CO removal depth and CO2 conversion ratio of below 5%.Thus,a two-stage methanation process applying two kinds of catalysts is proposed in this study,that is,one kind of catalyst with relatively low activity and high selectivity for the first stage at higher temperature,and another kind of catalyst with relatively high activity and high selectivity for the second stage at lower temperature.Experimental results showed that at the first stage CO content was decreased from 1%to below 0.1%at 250-300℃,and at the second stage to below 10 ppm at 150-185℃.CO2 conversion was kept less than 5%,At the same time,influence of inlet CO content and GHSV on CO removal depth was also discussed in this paper. 展开更多
关键词 preferential methanation two-stage CO removal PEFC conversion ratio
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森林认证国际新进展及启示 认领 引用 被引量：7
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作者 胡延杰 陈绍志 李秋娟 《林业经济》 北大核心 2015年第8期97-100,108,共4页
概述了森林经营认证和产销监管链认证的最新进展,分析了国际森林认证发展面临的主要挑战,包括认证体系互认、认证费用、贸易法规、绿色建筑、认证对森林可持续经营的贡献等。在此基础上,系统总结了进一步促进我国森林认证发展的5点启示... 概述了森林经营认证和产销监管链认证的最新进展,分析了国际森林认证发展面临的主要挑战,包括认证体系互认、认证费用、贸易法规、绿色建筑、认证对森林可持续经营的贡献等。在此基础上,系统总结了进一步促进我国森林认证发展的5点启示,包括强化森林认证市场推广、协调森林认证与木材合法性认定关系、提高森林认证对森林可持续经营的贡献、拓宽认知领域和发掘认证潜力、协调国家认证体系和国际认证体系关系。 展开更多
关键词 森林认证 FSC PEFC 森林可持续经营
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CFCC与FSC林产品产销监管链认证标准对比分析 认领 引用 被引量：7
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作者 刘旭 陆文明 《世界林业研究》 CSCD 北大核心 2018年第3期83-86,共4页
近年来林产品产销监管链认证在全球发展较快。目前PEFC和FSC这2大森林认证体系在全球影响力最大,发展也最为迅速。中国的林产品产销监管链认证体系已与PEFC产销监管链认证体系实现了互认,因此两者的标准结构与内容类似。文中主要从原料... 近年来林产品产销监管链认证在全球发展较快。目前PEFC和FSC这2大森林认证体系在全球影响力最大,发展也最为迅速。中国的林产品产销监管链认证体系已与PEFC产销监管链认证体系实现了互认,因此两者的标准结构与内容类似。文中主要从原料分类、信息、林产品加工转换过程以及销售和流通4个方面对比分析中国林产品产销监管链认证标准与FSC林产品产销监管链认证标准,总结其主要缺陷,并针对政策制定和实际监管提出建议。 展开更多
关键词 森林认证 林产品 产销监管链 木材追溯性 CFCC PEFC FSC
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建立国际认可的中国本土森林认证体系的思考 认领 引用 被引量：7
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作者 苏蕾 曹玉昆 《林业经济问题》 北大核心 2009年第1期28-32,共5页
分析、借鉴了国际森林认证现状、经验,推导出建立国际认可的中国本土森林认证体系的关键因素,得出如下研究结论:政府应鼓励各利益方参与搞好森林认证试点工作并出台辅助政策;不断完善森林认证的标准和体系;实现中国本土的森林认证体系与... 分析、借鉴了国际森林认证现状、经验,推导出建立国际认可的中国本土森林认证体系的关键因素,得出如下研究结论:政府应鼓励各利益方参与搞好森林认证试点工作并出台辅助政策;不断完善森林认证的标准和体系;实现中国本土的森林认证体系与PEFC互认,可以采取联合认证、阶段性认证、多认证体系并存的灵活多样的方式等建议,建立国际认可的中国本土森林认证体系,最终实现中国林业的可持续经营。 展开更多
关键词 森林认证 认证体系 PEFC 互认
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Evaluation of hot pressing parameters on the electrochemical performance of MEAs based on Aquivion■ PFSA membranes 认领 引用 被引量：1
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作者 Irene Gatto Ada Sacca +4 位作者 Vincenzo Baglio Antonino Salvatore Arico Claudio Oldani Luca Merlo Alessandra Carbone 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2019年第8期168-173,I0006,共6页
The membrane-electrodes assembly(MEA) is the core of the Polymer Electrolyte Fuel Cell(PEFC). It consists of a membrane, catalytic(CL) and gas diffusion layers(GDL). In order to manufacture MEAs with suitable performa... The membrane-electrodes assembly(MEA) is the core of the Polymer Electrolyte Fuel Cell(PEFC). It consists of a membrane, catalytic(CL) and gas diffusion layers(GDL). In order to manufacture MEAs with suitable performance, a hot-pressing procedure is generally used. The relevant parameters are the temperature, pressure and time of hot-pressing. Such variables need to be adjusted as a function of the type of ionomer used in the catalytic layer and membrane. In this study, an evaluation of the temperature of hot-pressing was carried out and its influence on MEA electrochemical performance was assessed. In particular, preparation trials of MEAs were carried out with reinforced experimental membranes based on Aquivion^■ short-side-chain PFSA(by Solvay Specialty Polymers). The membranes were coupled to gas diffusion electrodes, and MEAs were manufactured using different temperatures for the hot-pressing procedure in order to evaluate their influence on the electrochemical performance of PEFCs, in the temperature range of 80–95 °C, with low relative humidity of the reactant gases. The electrochemical performance of the prepared MEAs was tested in a H2/Air 25 cm^2 single cell in terms of polarization curves and accelerated stress test(AST). 展开更多
关键词 Aquivion■ Short-side chain PEFC Hot-pressing parameters Automotive applications
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俄罗斯森林认证的发展态势 认领 引用 被引量：3
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作者 惠淑荣 魏卓 陆文明 《辽宁林业科技》 北大核心 2008年第5期52-55,共4页
文章介绍了俄罗斯的森林认证体系、森林认证现状、产生的影响和当前面临的问题和挑战,以及对我国开展森林认证工作的借鉴作用。
关键词 俄罗斯 森林认证 FSC俄罗斯工作组 PEFC体系
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国外燃料电池研究发展现状 认领 引用 被引量：16
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作者 李乃朝 衣宝廉 《电化学》 1996年第2期128-135,共8页
国外燃料电池研究发展现状①（参加1996年2月第二次国际燃料电池（日本神户）会议（2ndIFCC）观感）李乃朝衣宝廉（中科院大连化学物理研究所，大连116011）燃料电池（FC）是继火力、水力和核能之后的第四种发电方式，其特点是高效、清... 国外燃料电池研究发展现状①（参加1996年2月第二次国际燃料电池（日本神户）会议（2ndIFCC）观感）李乃朝衣宝廉（中科院大连化学物理研究所，大连116011）燃料电池（FC）是继火力、水力和核能之后的第四种发电方式，其特点是高效、清洁、低噪音、负... 展开更多
关键词 燃料电池 PAFC MCFC SOFC PEFC
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离子交换膜燃料电池汽车 认领 引用 被引量：13
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作者 李乃朝 衣宝廉 《电化学》 1997年第2期125-131,共7页
本文综述了离子交换膜燃料电池汽车应用发展背景，现状及商业化前景，探讨了离子交换膜燃料电池及其系统关键技术．
关键词 离子交换膜 燃料电池 汽车 PEFC 电动汽车 FCV
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日本固体高分子电解质型燃料电池的现状与展望 认领 引用 被引量：2
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作者 黄汉生 《现代化工》 EI CAS 北大核心 2001年第3期54-58,共5页
关键词 日本 固体高分子电解质型 燃料电池 PEFC
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Comparison of Isobaric and Non-isobaric Operations on a Two-Phase Dynamic Model for PEFC Cathode Gas Diffusion Layer 认领 引用
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作者 纪光霁 陈翌 +1 位作者 周苏 陈凤祥 《Journal of Donghua University(English Edition)》 EI CAS 2011年第6期539-546,共8页
Key words,： Two 1-D dynamical and isothermal models of cathode gas diffusion layer（GDL） with isobaric and non-isobaric operations for polymer electrolyte fuel cells（PEFCs） were developed and implemented in COMSOL... Key words,： Two 1-D dynamical and isothermal models of cathode gas diffusion layer（GDL） with isobaric and non-isobaric operations for polymer electrolyte fuel cells（PEFCs） were developed and implemented in COMSOL Multiphysics v3.5.The artificial diffusion coefficient was introduced as well to make the numerical computation be stable.In the non-isobaric model,the pressure of gas mixture was obtained by summing up the governing equations of gaseous components,instead of Navier-Stoks equation.Comparison of the two models were carried out with the steady-states and dynamical simulations under given conditions.The corresponding analysis based on the simulated results was also given simultaneously.This paper is contributed to finding the differences between the isobaric and non-isobaric operation in the two-phase model of cathode GDL. 展开更多
关键词 two-phase model gas diffusion layer(GDL) isobaric and non-isobaric operations polymer electrolyte fuel cell(PEFC)
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用交互氢泵法的聚合物电解质燃料电池堆-30℃启动 认领 引用
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作者 司德春 蹇季廷 +3 位作者 徐浩森 汪尚尚 王诚 张剑波 《汽车安全与节能学报》 CAS CSCD 北大核心 2021年第4期604-612,共9页
为了在温带、寒带地区推广燃料电池汽车,研究了含20片单体电池、活性面积为285 cm2的石墨基双极板聚合物电解质燃料电池短堆的零下启动。开发了基于实车的使用交互氢泵的电源系统;对短堆阳极和阴极同时供应氢气;用低温环境舱来构建-30... 为了在温带、寒带地区推广燃料电池汽车,研究了含20片单体电池、活性面积为285 cm2的石墨基双极板聚合物电解质燃料电池短堆的零下启动。开发了基于实车的使用交互氢泵的电源系统;对短堆阳极和阴极同时供应氢气;用低温环境舱来构建-30℃环境;以起始膜—水(分子数)含量、交互电幅值及频率等作为3个控制参数,实现燃料电池短堆-30℃启动;测试了短堆零下启动前后的极化曲线。结果表明:燃料电池短堆-30℃启动后,中心位置的单体电池可在80 s内温升至0℃;在其余位置,可在200 s内温升至0℃;零下启动前后的极化性能基本无衰减。 展开更多
关键词 燃料电池汽车 聚合物电解质燃料电池(PEFC) 石墨基双极板短堆 交互氢泵方法 零下启动
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国际森林认证体系PEFC最新发展概况 认领 引用
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作者 王文霞 胡延杰 《国际木业》 2020年第5期50-53,共4页
PEFC作为国际两大认证体系之一,致力于推动全球森林资源的可持续发展。近20年,PEFC逐渐发展成为全球最大的森林认证体系,在会员国数量、森林认证面积、产销监管链、标准体系及业务重点等方面均取得重要进展。本文对PEFC的最新发展概况... PEFC作为国际两大认证体系之一,致力于推动全球森林资源的可持续发展。近20年,PEFC逐渐发展成为全球最大的森林认证体系,在会员国数量、森林认证面积、产销监管链、标准体系及业务重点等方面均取得重要进展。本文对PEFC的最新发展概况进行了梳理分析,以期为同领域的管理和研究部门提供借鉴和参考。 展开更多
关键词 森林认证 PEFC 体系发展
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Fuel cell performance assessment for closed-loop renewable energy systems 认领 引用 被引量：3
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作者 Fabio V.Matera Irene Gatto +1 位作者 Assunta Patti Enza Passalacqua 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2016年第3期531-538,共8页
Fuel cells and electrolysis are promising candidates for future energy production from renewable energy sources. Usually, polymer electrolyte fuel cell systems run on hydrogen and air, while the most of electrolysis s... Fuel cells and electrolysis are promising candidates for future energy production from renewable energy sources. Usually, polymer electrolyte fuel cell systems run on hydrogen and air, while the most of electrolysis systems vent out oxygen as unused by-product. Replacing air with pure oxygen, fuel cell electrochemical performance, durability and system efficiency can be significantly increased with a further overall system simplification and increased reliability. This work, which represents the initial step for pure H;/O;polymer electrolyte fuel cell operation in closed-loop systems, focuses on performance validation of a single cell operating with pure H;/O;under different relative humidity（RH） levels, reactants stoichiometry conditions and temperature. As a result of this study, the most convenient and appropriate operative conditions for a polymer electrolyte fuel cell stack integrated in a closed loop system were selected. 展开更多
关键词 Polymer electrolyte fuel cell(PEFC) H_2/O_2 fuel cell Closed-loop fuel cell system
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Analysis on Temperature Distributions in Single Cell of Polymer Electrolyte Fuel Cell When Operated in High Temperature Range 认领 引用 被引量：5
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作者 Akira Nishimura Kotaro Osada +3 位作者 Takuro Tsunoda Masato Yoshimura Masafumi Hirota Eric Hu 《Journal of Energy and Power Engineering》 CAS 2016年第8期453-464,共12页
This study is to understand the impact of operating condition, especially initial operation temperature （Tini） which is set in high temperature range, on the temperature profile of the interface between PEM （polyme... This study is to understand the impact of operating condition, especially initial operation temperature （Tini） which is set in high temperature range, on the temperature profile of the interface between PEM （polymer electrolyte membrane） and catalyst layer at the cathode （i.e., the reaction surface） in a single PEFC （polymer electrolyte fuel cell）. A 1D multi-plate heat transfer model based on the temperature data of separator measured using thermograph in a power generation experiment was developed to evaluate the reaction surface temperature （Treact）. This study investigated the effects of flow rate, relative humidity and type of supply gas as well as Tini on the temperature distribution on reaction surface. The results obtained in 02 supply case show that, the temperature rise at the segments near the outlet of cell decreases with increasing Tini irrespective of relative humidity of supply gas （RH）, while it is not seen in air supply case. Regarding the segments except near the outlet in 02 supply case, Treact - Tini increases with increasing Tini for 40% RH. The temperature distribution on reaction surface in 02 supply case is wider with increasing Tini as well as decreasing RH, though that in air supply case is relatively even. 展开更多
关键词 PEFC heat transfer model temperature distribution high temperature operation.
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Impact of Thickness of Polymer Electrolyte Membrane on Temperature Distributions in Single Cell of Polymer Electrolyte Fuel Cell Operated at High Temperature 认领 引用 被引量：5
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作者 Akira Nishimura Yusuke Sato +2 位作者 Masato Yoshimura Satoru Kamiya Masafumi Hirota 《Journal of Energy and Power Engineering》 CAS 2018年第2期80-92,共13页
This study is to understand the impact of operating condition, especially initial operation temperature （Tini） which is set in high temperature range, on the temperature profile of the interface between PEM （polyme... This study is to understand the impact of operating condition, especially initial operation temperature （Tini） which is set in high temperature range, on the temperature profile of the interface between PEM （polymer electrolyte membrane） and catalyst layer at the cathode （i.e., the reaction surface） in a single PEFC （polymer electrolyte fuel cell）. A 1D multi-plate heat transfer model based on the temperature data of separator measured using thermograph in a power generation experiment was developed to evaluate the reaction surface temperature （Treact）. This study investigated the effects of Tini, flow rate and relative humidity of supply gas as well as thickness of PEM on the temperature distribution on reaction surface. As a result, the impact of flow rate of supply gas on the temperature distribution is not significant irrespective of relative humidity conditions as well as PEM type. When operated at high temperature, the temperature distribution is relatively flat in the case of thicker PEM （Nafion 115）, while Treact rises from the inlet to the outlet large and the temperature distribution is wide in the case of thin PEM （Nafion 211） irrespective of relative humidity condition. Since the water transfer through PEM in the case of Nafion 211 is better than Nafion 115 due to thin PEM, the power generation is promoted along the gas flow with the aid of humidification by water produced from electrochemical reaction. 展开更多
关键词 PEFC heat transfer model temperature distribution high temperature operation thickness of PEM.
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Impact of Thickness of Polymer Electrolyte Membrane and Gas Diffusion Layer on Temperature Distributions in Polymer Electrolyte Fuel Cell Operated at Temperature around 90℃ 认领 引用 被引量：4
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作者 Akira Nishimura Yusuke Sato +4 位作者 Satoru Kamiya Tatsuya Okado Kouhei Yamamoto Masafumi Hirota Eric Hu 《Journal of Energy and Power Engineering》 CAS 2019年第3期97-115,共19页
Polymer Electrolyte Fuel Cell(PEFC)is desired to be operated at temperature around 90℃ for stationary applications during the period from 2020 to 2025 in Japan.It can be expected thinner polymer electrolyte membrane(... Polymer Electrolyte Fuel Cell(PEFC)is desired to be operated at temperature around 90℃ for stationary applications during the period from 2020 to 2025 in Japan.It can be expected thinner polymer electrolyte membrane(PEM)and gas diffusion layer(GDL)would promote the power generation performance of PEFC at this temperature.The aim of this study is to understand the impact of thickness of PEM and GDL on the temperature profile of interface between PEM and catalyst layer at the cathode(i.e.,the reaction surface)in a single PEFC with an initial operation temperature(Tini).An 1D multi-plate heat transfer model based on temperature data of separator measured using thermograph in power generation process was developed to evaluate temperature of the reaction surface(Treact).This study investigated the effect of Tini,flow rate and relative humidity of supply gas on Treact distribution.The study finds that when using thin GDL,the even distribution of Treact – Tini is obtained irrespective of thickness of PEM,Tini and relative humidity conditions.Treact – Tini using Nafion 115 is higher than the other thin PEMs irrespective of Tini and relative humidity conditions.It can be concluded that the even temperature distribution could be achieved by using thin PEM and GDL. 展开更多
关键词 PEFC heat transfer model temperature distribution operation temperature around 90℃ thickness of PEM and GDL relative humidity condition.
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