Volume production of high loading Pt/C catalyst with high performance via a microwave-assisted organic colloid route

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• 作者：Bin Liu^a ; ^b ; Liping Zheng^a ; ^b ; Shijun Liao^a ; ^b ; ^{chsjliao@scut.edu.cn} ; Jianhuang Zeng^a ; ^b
• 关键词：Catalyst ; Microwave-assisted organic colloid ; Fuel cell ; Volume production
• 刊名：Journal of Power Sources
• 出版年：2012
• 期刊代码：58_03787753
• 类别：ce
• 出版时间：15 July, 2012
• 卷：210
• 期：Complete
• 页码：54-59
• 文件大小：1116 K

摘要

A scale-up preparation of high-loading Pt/C (40 wt%) to 3 g per pot has been achieved with a microwave-assisted organic colloid method, followed by appropriate heat treatment in alternating atmospheres (nitrogen, oxygen, and hydrogen). The catalysts prepared in this work were characterized by thermogravimetric analysis, X-ray diffraction analysis, and transmission electron microscopy etc., and were found to be competitive with state-of-the-art HiSPEC 4100 Pt/C catalyst in terms of their activities towards the anodic oxidation of methanol and the cathodic reduction of oxygen. They also displayed better cathodic activity and stability in a hydrogen/air single-cell test. The particle size was as small as 2.3 nm, which is smaller than HiSPEC 4100 Pt/C catalyst. The scale-up work reported in this paper provides a practicable method to achieve the volume production of a high-loading Pt/C catalyst for fuel cell applications.