Reticulated polyaniline nanowires as a cathode microporous layer for high-temperature PEMFCs

被引:16
作者
Fu, Xudong [1 ]
Li, Tao [1 ]
Tang, Luqing [1 ]
Deng, Xin [1 ]
Zhang, Rong [1 ]
Hu, Shengfei [1 ]
Zhao, Feng [2 ]
Li, Xiao [2 ]
Liu, Qingting [1 ]
机构
[1] Hubei Univ Technol, Sch Mat & Chem Engn, Hubei Prov Key Lab Green Mat Light Ind, Wuhan 430068, Peoples R China
[2] Wuhan Troowin Power Syst Technol Co Ltd, Wuhan 430079, Peoples R China
基金
中国国家自然科学基金;
关键词
High-temperature proton exchange membrane fuel cell; Microporous layer; Polyaniline nanowire; Cathode; Mass transfer;
D O I
10.1016/j.ijhydene.2020.12.033
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Traditional dense microporous layers (MPLs) are suitable for low-temperature proton exchange membrane fuel cells (PEMFCs), but they greatly hinder mass transport in high-temperature PEMFCs. Here, we report a novel cathode MPL based on reticulated polyaniline nanowires that were grown on carbon paper via in-situ electropolymerization. The maximum power density of the high-temperature PEMFC based on the new MPL was 476 mW/cm(2), which was 36% higher than that based on a conventional MPL. Oxygen gain tests and electrochemical impedance spectroscopy showed that the new MPL accelerated oxygen transfer due to its unique pore size distribution, which ultimately improved the performance of the HT-PEMFC. (C) 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:8802 / 8809
页数:8
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