Effect of conditioning method on direct methanol fuel cell performance
Effect of conditioning method on direct methanol fuel cell performance
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DOI：
10.1016/j.jpowsour.2009.11.015
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发表时间：
2010-09
影响因子：
9.2
通讯作者：
M. Inoue;T. Iwasaki;K. Sayama;M. Umeda
中科院分区：
文献类型：
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作者：
M. Inoue;T. Iwasaki;K. Sayama;M. Umeda
研究了调节方法对提高直接甲醇燃料电池（DMFC）性能的影响。在不受甲醇影响的条件下，使用新开发的具有Ag/ ag2so4参比电极的单电池测量调理后的DMFC性能。因此，我们成功地开发了一种独创的两步调节方法，在常规的DMFC调节之前进行H2gas调节。用参考电极测量了两步调理后的阳极和阴极特性。根据得到的i-E曲线，发现两步调理提高了阳极甲醇氧化性能，也抑制了阴极o2还原性能的下降。阳极和阴极特性很好地解释了基于两步调理的DMFC的高性能。
We investigated the effect of the conditioning methods on improving the direct methanol fuel cell (DMFC) performance. The DMFC performance after the conditioning was measured using a newly developed single cell having an Ag/Ag2SO4reference electrode, which is not influenced by methanol. As a result, we succeeded in developing an original two-step conditioning method in which the conditioning by fueling H2gas is conducted prior to a conventional DMFC conditioning. The anode and cathode characteristics after the two-step conditioning were measured with respect to a reference electrode. Based on the obtained i–E curves, the two-step conditioning is found to improve the methanol oxidation performance at the anode and also suppress the decline of the O2reduction performance at the cathode. The high DMFC performance based on the two-step conditioning is well explained by the anode and cathode characteristics.