Performance improvement of passive direct methanol fuel cells with surface-patterned Nafion® membranes
Performance improvement of passive direct methanol fuel cells with surface-patterned Nafion® membranes
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使用表面图案化 Nafion® 膜提高被动式直接甲醇燃料电池的性能
DOI:
10.1016/j.apsusc.2014.11.087
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发表时间:
2015-02
影响因子:
6.7
通讯作者:
Hui Yang
中科院分区:
文献类型:
--
作者:
Longjuan Pu;Jingjing Jiang;Ting Yuan;Jieshi Chai;Haifeng Zhang;Zhiqing Zou;Xue-Mei Li;Hui Yang
Nafion®115 membrane, patterned by thermal imprint lithography on the anode side, is used for passive direct methanol fuel cells (DMFCs). The membrane roughness factor, defined as the ratio between the actual and projected membrane surface area, was investigated for its effects on the performance of the DMFCs. When the anode Pt-Ru (1:1) catalyst loading is 1.0 mg cm−2, the maximum power density of the DMFC with a surface-patterned membrane (roughness factor: 5.4) using 3.0 M methanol as the fuel at 25 ± 1 °C reaches 27.2 ± 0.3 mW cm−2, an increase of ∼57.2% in comparison to DMFC using the pristine membrane (roughness factor: ∼1.0). Further, electrochemical characterization indicates that increased roughness factor of the membrane results in increased electrochemically active surface area and reduced charge transfer resistance in the cell. These performance improvements are ascribed to the increased surface roughness which enlarges the membrane/catalyst interface, possibly facilitating mass transport of the fuel and improving anode catalyst utilization. Thus, patterned membranes have great potential in improving the performance of fuel cells and reducing catalyst loading.
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影响因子:
9.2
作者:
Yuan, Ting;Zou, Zhiqing;Yang, Hui
通讯作者:
Yang, Hui
影响因子:
4.5
作者:
W. Sugimoto;K. Aoyama;T. Kawaguchi;Y. Murakami;Y. Takasu
通讯作者:
W. Sugimoto;K. Aoyama;T. Kawaguchi;Y. Murakami;Y. Takasu
DOI:
10.1016/j.elecom.2006.11.003
发表时间:
2007-04
期刊:
Electrochem. Commun.
影响因子:
--
作者:
曹剑瑜;张熙贵;Shiunchin C. Wang;杨辉;Daniel L. Akins;杜冲;Philippe Mercier
通讯作者:
Philippe Mercier
影响因子:
5.3
作者:
Mei Chen;Ji Chen;Yuan Li;Qinghong Huang;Haifeng Zhang;Xinzhong Xue;Z. Zou;Hui Yang
通讯作者:
Mei Chen;Ji Chen;Yuan Li;Qinghong Huang;Haifeng Zhang;Xinzhong Xue;Z. Zou;Hui Yang
影响因子:
2.7
作者:
Yi Zhang;Jian Lu;Haoshen Zhou;T. Itoh;R. Maeda
通讯作者:
Yi Zhang;Jian Lu;Haoshen Zhou;T. Itoh;R. Maeda