作者
Zhaoxu Wei, An He, Kaihua Su, Sheng Sui
发表日期
2015/3/1
期刊
Journal of Energy Chemistry
卷号
24
期号
2
页码范围
213-218
出版商
Elsevier
简介
High performance cathode for polymer electrolyte membrane fuel cell was prepared by depositing Pt nanowires in a carbon matrix coated on a substrate, and using decal transfer method to fabricate the membrane electrode assembly. The effects of carbon and ionomer contents on the electrode micro-structure and fuel cell performance are investigated by physical characterization and single cell testing. The Pt nanowires are gradient distributed across the cathode thickness, and more Pt exists near the membrane. Both the carbon and ionomer contents can affect the Pt nanowires distribution and aggregation. In addition, the carbon loading dominates the transport distance of gas and proton, and the ionomer content affects the triple phase boundaries and porosity in the cathode. The optimal structure of Pt nanowire cathode is obtained at 0.10 mg·cm–2 carbon loading and 10 wt% ionomer.
学术搜索中的文章
Z Wei, A He, K Su, S Sui - Journal of Energy Chemistry, 2015