Effect of mesoporous carbon on oxygen reduction reaction activity as cathode catalyst support for proton exchange membrane fuel cell

被引：28
作者：
Xie, Meng [1 ,2 ]
Chu, Tiankuo [1 ,2 ]
Wang, Xiaolei [3 ]
Li, Bing [1 ,2 ]
Yang, Daijun [1 ,2 ]
Ming, Pingwen [1 ,2 ]
Zhang, Cunman [1 ,2 ]
机构：
[1] Tongji Univ, Clean Energy Automot Engn Ctr, Shanghai 201804, Peoples R China
[2] Tongji Univ, Sch Automot Studies, Shanghai 201804, Peoples R China
[3] Shanghai Composites Sci & Technol Co Ltd, Shanghai 201112, Peoples R China
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2022年 / 47卷 / 65期
基金：
中国国家自然科学基金;
关键词：
PEMFC; Catalyst; Carbon support; Mesoporous-structure; Internal Pt particles; Oxygen reduction reaction; HIERARCHICAL POROUS CARBON; ELECTROCATALYTIC OXIDATION; METHANOL; GRAPHENE; NITROGEN; PERFORMANCE; COMPOSITE; ELECTROOXIDATION; SPECTROSCOPY; ELECTRODE;
D O I：
10.1016/j.ijhydene.2022.06.131
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：
In this paper, a new carbon support with a large number of mesoporous-structures is selected to prepare Pt/C catalysts. Transmission electron microscope (TEM) results show that the Pt/3# catalyst presents a sponge-like morphology, Pt particles are not only evenly distributed on the surface of carbon support, but also the smaller Pt particles are deposited in the mesoporous inside the support. The average diameter of Pt particles is only 2.8 nm. The membrane electrode assembly (MEA) based on Pt/3# catalyst also shows excellent performance. In conclusion, the 3# support is an idea carbon support for PEMFC, which helps to improve the oxygen reduction reaction (ORR) activity of the catalyst. Based on the "internal-Pt " structure of the support mesoporous, the efficient three-phase boundaries (TPBs) are construct to avoid the poisoning effect of ionomer on the nano-metal particles, reduce the activation impedance and oxygen mass transfer impedance, and improve the reaction efficiency. (C) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：28074 / 28085
页数：12
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