Experimental study on the performance of a direct methanol fuel cell with low catalyst loading - 文章详情页

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摘要：

The　effects　of　operating　parameters　such　as　cell　temperature,　cathode　pressure,　methanol　solution　concentration　and　flux　and　oxygen　flux　on　a　liquid-feed　direct　methanol　fuel　cell　with　low　catalyst　loading　(anode　loading　of　Pt-Ru:0.4　mg·cm-2;　cathode　loading　of　Pt:0.4mg·cm-2)　were　studied　experimentally.　The　emphasis　on　the　effect　of　these　parameters　on　the　mass　transfer　inside　the　cell　was　discussed.　The　results　showed　that　increasing　the　methanol　solution　flux　and　concentration　not　only　enhanced　the　mass　transfer　of　methanol　to　catalyst　layer,　but　also　accelerated　the　methanol　crossover　from　anode　to　cathode.　Also,　the　dynamic　response　of　cell　voltage　to　current　was　investigated　under　constant　operating　condition.　The　dynamic　change　of　methanol　crossover　process　plays　the　key　role　in　the　dynamic　response　of　the　cell　voltage.

关键词：

Anodes Catalysts Cathodes Concentration (process) Dynamic response Fluxes Fuel cells Loading Mass transfer Methanol Oxygen Pressure Temperature

作者机构：

[ 1 ] [Wang, Maohai]Enhanced Heat Transfer and Energy Conservation Key Lab., College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100022, China
[ 2 ] [Wang, Maohai]Heat Transfer and Energy Conversion Key Lab., College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100022, China
[ 3 ] [Guo, Hang]Enhanced Heat Transfer and Energy Conservation Key Lab., College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100022, China
[ 4 ] [Guo, Hang]Heat Transfer and Energy Conversion Key Lab., College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100022, China
[ 5 ] [Ma, Chongfang]Enhanced Heat Transfer and Energy Conservation Key Lab., College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100022, China
[ 6 ] [Ma, Chongfang]Heat Transfer and Energy Conversion Key Lab., College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100022, China
[ 7 ] [Yu, Jian]Enhanced Heat Transfer and Energy Conservation Key Lab., College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100022, China
[ 8 ] [Yu, Jian]Heat Transfer and Energy Conversion Key Lab., College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100022, China
[ 9 ] [Wang, Chaoyang]Electrochemical Engine Center, Pennsylvania State University, University Park, PA 16802, United States
[ 10 ] [Liu, Xuan]Enhanced Heat Transfer and Energy Conservation Key Lab., College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100022, China
[ 11 ] [Liu, Xuan]Heat Transfer and Energy Conversion Key Lab., College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100022, China
[ 12 ] [Jia, Jielin]Enhanced Heat Transfer and Energy Conservation Key Lab., College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100022, China
[ 13 ] [Jia, Jielin]Heat Transfer and Energy Conversion Key Lab., College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100022, China

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电子邮件地址：

wangmaohai@emails.bjut.edu.cn

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