质子交换膜燃料电池
催化作用
耐久性
材料科学
化学工程
燃料电池
过氧化氢
电化学
纳米线
解吸
复合材料
纳米技术
电极
化学
工程类
吸附
有机化学
物理化学
作者
Han Deng,Lu Lu,Zhi Zhao,Bing Xu
出处
期刊:Key Engineering Materials
日期:2022-03-29
卷期号:915: 109-113
摘要
With the development of PEMFC, the process of commercial fuel cell is also accelerating. As one of the key points of fuel cell, catalyst is facing the problem of how to improve its performance and life. In order to improve the durability of fuel cell catalyst, this paper will study the preparation of Pt nanowire catalyst, so as to improve the electrochemical performance and durability of the catalyst. PtNWs were prepared by soft template method. By TEM, we can clearly see that PtNWs with uniform length were obtained by soft template method. Because of the special structure, the ORR performance of the catalyst was better. The test results showed that the hydrogen peroxide desorption from PtNWs was easier, and the half wave potential of LSV curve shifted forward, which indicated that the NWs catalyst performed better ORR performance. The linear structure of PtNWs is not easy to dissolve and lose compared with Pt particles, and the linear structure is more conducive to the transfer of materials and electrons at the reaction interface, so it can show better performance and life.
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