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学科主题物理化学
A novel cathode structure with double catalyst layers and low Pt loading for proton exchange membrane fuel cells
Qiu, Yanling; Zhang, Huamin; Zhong, Hexiang; Zhang, Fengxiang; Zhang HM(张华民); Zhong HX(钟和香)
关键词Cathode Structure Double Catalyst Layers Pt Utilization Water Flooding Problem Synergistic Effect Polymer Electrolyte Membrane Fuel Cells (Pemfcs)
刊名INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
2013-05-10
DOI10.1016/j.ijhydene.2013.02.118
38期:14页:5836-5844
收录类别SCI
合作性质
文章类型Article
部门归属DNL17
项目归属DNL17
产权排名待补充
WOS标题词Science & Technology ; Physical Sciences ; Technology
资助者1,1 ; 1,1 ; 1,1 ; 1,1
类目[WOS]Chemistry, Physical ; Electrochemistry ; Energy & Fuels
研究领域[WOS]Chemistry ; Electrochemistry ; Energy & Fuels
关键词[WOS]THIN-FILM ; PEMFC ELECTRODES ; PERFORMANCE ; PLATINUM ; FABRICATION ; DEPOSITION ; DIAGNOSIS ; IMPEDANCE ; IONOMERS ; SURFACE
英文摘要A novel cathode structure (NCS) was developed, which consisted of an inner and an outer catalyst layer (CL). It showed an improved platinum (Pt) utilization (above 50%), a lowered CL/gas diffusion layer interfacial resistance, and a decreased mass transport polarization compared with the traditional cathode structure (TCS). A hydrogen/air proton exchange membrane fuel cell employing NCS yielded an output power density up to 0.76 W cm(-2) with cathode Pt loading as low as 0.28 mg cm(-2). The enhanced performance of NCS is attributed to synergistic effect of the two catalyst supports in outer CL, which provides abundant pores to relieve water flooding and facilitates heat-induced proton conductor migration from the inner to outer CL, forming a hydrophilic proton conduction network. Moreover, the thin and compact inner CL can meet the demand of rich active sites and catalyst migration toward the regions nearest to the membrane under high current densities. Copyright (C) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
语种英语
资助者1,1 ; 1,1 ; 1,1 ; 1,1
原文出处查看原文
WOS记录号WOS:000319232500037
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/119250
专题中国科学院大连化学物理研究所
通讯作者Zhang HM(张华民); Zhong HX(钟和香)
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, Div Energy Storage, Dalian 116023, Peoples R China
推荐引用方式
GB/T 7714
Qiu, Yanling,Zhang, Huamin,Zhong, Hexiang,et al. A novel cathode structure with double catalyst layers and low Pt loading for proton exchange membrane fuel cells[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2013,38(14):5836-5844.
APA Qiu, Yanling,Zhang, Huamin,Zhong, Hexiang,Zhang, Fengxiang,张华民,&钟和香.(2013).A novel cathode structure with double catalyst layers and low Pt loading for proton exchange membrane fuel cells.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,38(14),5836-5844.
MLA Qiu, Yanling,et al."A novel cathode structure with double catalyst layers and low Pt loading for proton exchange membrane fuel cells".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 38.14(2013):5836-5844.
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