Three-phase interphase modeling of anode in membrane electrode assembly using a porous microelectrode
作者： Sayoko Shironita , Minoru Umeda , Weiqi Zhang
DOI: 10.1016/J.IJHYDENE.2015.01.127
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摘要: Abstract In this study, the hydrogen oxidation reaction (HOR) at modeled three-phase interfaces of before and after degradation was investigated by combining electrochemical impedance spectroscopy (EIS) porous microelectrode (PME) techniques. The powder mixture a carbon-supported Pt catalyst Nafion-packed PME (Electrode-1) as non-degraded interface. On other hand, carbon black electroplated (Electrode-2) degraded Electrode-1 showed higher HOR activity than Electrode-2. Based on EIS result, when compared to Electrode-1, both charge transfer mass resistances Electrode-2 significantly increased, suggesting suppression interface model. That is, are hindered
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