【摘 要】
：
Hydroxide exchange membrane fuel cell (HEMFC) is indicated to have high efficiency and reasonable power density [1,2],and it is potential to solve the cost
【机 构】
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State Key Laboratory of Fine Chemicals,Research and Development Center of Membrane Science and Techn
【出 处】
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The 6th International Conference on Separation and Technolog
论文部分内容阅读
Hydroxide exchange membrane fuel cell (HEMFC) is indicated to have high efficiency and reasonable power density [1,2],and it is potential to solve the cost and durability problems of proton exchange membrane fuel cell (PEMFC),due to many advantages including the high durability of catalysts,the expanding of catalyst categories,the facile kinetics at the cathode and anode,easy water management and the reduced fuel crossover [3,4].Hydroxide exchange membrane (HEM) is one of the key components in HEMFC.A simple method of preparing HEMs is that the chloromethyl group is introduced onto the polymers by the chloromethylation and subsequently the quaternary ammonium hydroxide group is introduced by quaternization and alkalization of chloromethylated polymers.The chloromethylation is the most important step because the degree of chloromethylation (DC) determines the ion exchange capacity of the HEM,which in turn determines the ionic conductivity.
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