High performance proton exchange membrane fuel cell electrode assemblies

NCU Institutional Repository > 工學院 > 機械工程學系 > 期刊論文 > Item 987654321/50094

jsp.display-item.identifier=請使用永久網址來引用或連結此文件: http://ir.lib.ncu.edu.tw/handle/987654321/50094

题名:	High performance proton exchange membrane fuel cell electrode assemblies
作者:	Yang,TF;Hourng,LW;Yu,TL;Chi,PH;Su,A
贡献者:	機械工程學系
关键词:	CATHODE CATALYST LAYERS;LOADING ELECTRODES;PLATINUM;FILM
日期:	2010
上传时间:	2012-03-27 17:03:20 (UTC+8)
出版者:	國立中央大學
摘要:	The conventional 5-layer membrane electrode assembly (MEA) consists of a proton exchange membrane (PEM) locating at its center, two layers of Pt-C-40 (Pt content 40 wt%) locating next on both surfaces of PEM, and two gas diffusion layers (GDL) locating next on the outer surfaces of Pt-C layers (structure-a MEA). In this paper, we report three modified MEAs consisting of Pt-C-40 (Pt content 40 wt%) and Pt-C-80 (Pt content 80 wt%) catalysts. These are: (1) 7-layer structure-b MEA with a thin Pt-C-80 layer locating between Pt-C-40 layer and PEM: (2) 7-layer structure-c MEA with a thin Pt-C-80 layer locating between Pt-C-40 layer and GDL; and (3)5-layer structure-d MEA with Pt-C-40 and Pt-C-80 mixing homogeneously and locating between PEM and GDL. Under a fixed Pt loading, we find structure-b, -c, and -d MEAs with 20-40 wt% Pt contributed from Pt-C-80 have better fuel cell performance than structure-a MEA consisting only of Pt-C-40. The reasons for the better fuel cell performance of these modified MEAs are attributed to the better feasibility for O(2) gas to reach cathode Pt particles and lower proton transport resistance in catalyst layers of the modified MEAs than structure-a MEA. (C) 2010 Published by Elsevier B.V.
關聯:	JOURNAL OF POWER SOURCES
显示于类别:	[機械工程學系] 期刊論文

文件中的档案:

档案	描述	大小	格式	浏览次数
index.html		0Kb	HTML	311	检视/开启

在NCUIR中所有的数据项都受到原著作权保护.

社群 sharing

数据加载中.....