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选择性混合型燃料电池膜电极的制备及性能研究 被引量：1

Preparation and characterization of selective membrane electrode for mixed-reactant fuel cell
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摘要 以Pt-Ru/C和Pt/C分别为阴极、阳极催化剂,以多孔聚丙烯薄膜浸渍Nafion溶液作为CMRFC的固体电解质膜(MEA),自制多孔选择性膜电极,并组装了单电池以及测试系统。以甲醇和氧气共同输送作为混合燃料,研究了阴极PTFE与Nafion含量及其分布对单电池的极化与功率特性以及单电池在放电运转过程中阴极氧化剂种类对单电池性能的影响,并考察了单电池的放电性能。研究表明,气体扩散层中微孔碳层中PTFE的质量含量为40%,催化层PTFE为30%时,在燃料供给条件为18.9mL.min-1,0.5mol.L-1的甲醇溶液+0.21 min-1O2时,MEA的电性能最好,稳定放电时最大功率可达0.55mW.cm-2(0.125V时)。 A direct methanol mixed-reactant fuel cell（DMRFC）single cell with PtRu/C cathode,Pt/C anode and a polypropylene membrane infused Nafion solution as the separator was prepared.The reactant selectivity of the electrocatalyst was tunable by changing the electrode hydrophobicity.The characteristics of the polarization and power for the single cell and the effect of content and distributing of polytetrafluoroethylene（PTFE） and Nafion for cathode at the same time the kind of oxidant on its performance were investigated.The discharge performance of the cell was also investigated.The results showed that the MEA have the maximum power density 0.55mW cm-2 of single cell in a methanol/oxygen mixed solution（18.9mL min-1 0.5mol·L-1 methanol＋0.2l min-1 O2） when the PTFE contents was 40% and 30% in the gas diffusion and catalyzer layer respectively.
作者 潘玥晧 李培金 孟庆函 曹兵
机构地区 北京化工大学材料科学与工程学院
出处 《化工新型材料》 CAS CSCD 北大核心 2010年第12期47-50,共4页 New Chemical Materials
关键词 混合型燃料电池 多孔固体电解质膜 选择性电极 中性溶液 DMRFC porous solid electrolyte membrane selective electrode neutral solution
分类号 TM911.4 [电气工程—电力电子与电力传动]
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参考文献14

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二级参考文献11

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共引文献15

同被引文献27

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化工新型材料
2010年 第12期

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