DICP OpenIR
Effect of fabrication methods of bifunctional catalyst layers on unitized regenerative fuel cell performance
Chen, Guobao1,2; Zhang, Huamin1; Ma, Haipeng1; Zhong, Hexiang1; Zhang HM(张华民)
KeywordBifunctional Catalyst Layer Unitized Regenerative Fuel Cell Membrane Electrode Assembly Electrochemical Impedance Spectra Spraying Technique
Source PublicationELECTROCHIMICA ACTA
2009-09-30
DOI10.1016/j.electacta.2009.04.043
Volume54Issue:23Pages:5454-5462
Indexed BySCI
SubtypeReview
Department3
Funding Project303
Contribution Rank1;1
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectElectrochemistry
WOS Research AreaElectrochemistry
WOS KeywordELECTROCHEMICAL IMPEDANCE ; ELECTROCATALYSTS ; ELECTRODE ; REDUCTION
AbstractIn order to understand the origins of performance variations in unitized regenerative fuel cells (URFCs), bifunctional catalyst layers (BCLs) fabricated with two different methods, i.e., ink deposition on membrane or GDL. were designed in this paper. The performances of the two different methods were evaluated, and their reaction dynamics were measured by electrochemical impedance spectra. The different BCLs, caused by the different preparation processes, were found to influence the fuel cell performance. The cell potentials of the URFCs using platinum sprayed onto the gas diffusion layer (GDL) are above 0.100 V higher than those with platinum sprayed onto the membrane at 800 mA cm(-2) in fuel cell (FC) mode. The mass transport resistances of the URFCs at different operation modes were also compared. It was proved that the platinum layer formed by applying platinum onto the GDL could prevent the cell from water flooding in FC mode. However, it was found that the cell performance changed slightly in water electrolysis mode with different BCLs. The electron conduction path was also found to be hindered by an IrO(2) agglomerate, which led to a decrease in cell performance. The highest and lowest round-trip efficiencies of the URFC with different BCLs were 42.1% and 22.3%, respectively, at 800 mA cm(-2). (C) 2009 Elsevier Ltd. All rights reserved.
Language英语
URL查看原文
WOS IDWOS:000268518500021
Citation statistics
Cited Times:25[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/102647
Collection中国科学院大连化学物理研究所
Corresponding AuthorZhang HM(张华民)
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, Key Mat Lab PEMFCs, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Chen, Guobao,Zhang, Huamin,Ma, Haipeng,et al. Effect of fabrication methods of bifunctional catalyst layers on unitized regenerative fuel cell performance[J]. ELECTROCHIMICA ACTA,2009,54(23):5454-5462.
APA Chen, Guobao,Zhang, Huamin,Ma, Haipeng,Zhong, Hexiang,&张华民.(2009).Effect of fabrication methods of bifunctional catalyst layers on unitized regenerative fuel cell performance.ELECTROCHIMICA ACTA,54(23),5454-5462.
MLA Chen, Guobao,et al."Effect of fabrication methods of bifunctional catalyst layers on unitized regenerative fuel cell performance".ELECTROCHIMICA ACTA 54.23(2009):5454-5462.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Chen, Guobao]'s Articles
[Zhang, Huamin]'s Articles
[Ma, Haipeng]'s Articles
Baidu academic
Similar articles in Baidu academic
[Chen, Guobao]'s Articles
[Zhang, Huamin]'s Articles
[Ma, Haipeng]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Chen, Guobao]'s Articles
[Zhang, Huamin]'s Articles
[Ma, Haipeng]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.