CAS OpenIR  > 多相复杂系统国家重点实验室
Performance enhancement of air-breathing proton exchange membrane fuel cell through utilization of an effective self-humidifying platinum-carbon catalyst
Poh, Chee Kok1,2; Tian, Zhiqun1; Bussayajarn, Narissara3; Tang, Zhe4; Sue, Fabing5; Lim, San Hua1; Feng, Yuan Ping2; Chua, Daniel4; Lin, Jianyi1,2; Lin, JY
2010-12-15
Source PublicationJOURNAL OF POWER SOURCES
ISSN0378-7753
Volume195Issue:24Pages:8044-8051
AbstractOne issue with air-breathing proton exchange membrane fuel cells (AB-PEMFCs) is that the reactants are not externally humidified, and thus the membrane or the catalyst layers might dry out due to electro-osmotic drag, diffusion and evaporation at the opening cathode. This results in a drop in internal ionic conductivity and thus in cell performance. Here, the preparation and characterization of self-humidifying carbon-supported Pt catalyst using citric acid modified carbon black (CA-CB) as the catalyst support are reported. Pt/CA-CB is highly hydrophilic due to the functional groups attached on the carbon support, which endows the ability to retain water in the membrane electrolyte assembly (MEA) and thereby help to improve the performance of AB-PEMFCs. A maximum power density of 204 mW cm(-2) can be achieved in an air-breathing PEMFC stack using Pt/CA-CB, a thick polymer membrane (NRE212) and a circular opening cathode. A 23.4% enhancement in the output power density is obtained by using Pt/CA-CB in place of a commercial catalyst when oblique slit cathodes are employed. This self-humidifying catalyst is particularly suitable for portable PEMFC applications. (C) 2010 Elsevier B.V. All rights reserved.
KeywordFunctionalization Pt Nanoparticles Self-humidifying Fuel Cells Citric Acid
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1016/j.jpowsour.2010.06.103
Indexed BySCI
Language英语
WOS KeywordPORTABLE APPLICATIONS ; COMPOSITE MEMBRANES ; SUPPORTED CATALYSTS ; POLARIZATION CURVE ; EMPIRICAL-EQUATION ; WATER MANAGEMENT ; PEMFC ; LAYER ; TEMPERATURE ; OPERATION
WOS Research AreaElectrochemistry ; Energy & Fuels
WOS SubjectElectrochemistry ; Energy & Fuels
WOS IDWOS:000282251900018
Citation statistics
Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/5409
Collection多相复杂系统国家重点实验室
Corresponding AuthorLin, JY
Affiliation1.Inst Chem & Engn Sci, Singapore 627833, Singapore
2.Natl Univ Singapore, Dept Phys, Singapore 117542, Singapore
3.Singapore Inst Mfg Technol, Singapore 638075, Singapore
4.Natl Univ Singapore, Dept Mat Sci & Engn, Singapore 117548, Singapore
5.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Poh, Chee Kok,Tian, Zhiqun,Bussayajarn, Narissara,et al. Performance enhancement of air-breathing proton exchange membrane fuel cell through utilization of an effective self-humidifying platinum-carbon catalyst[J]. JOURNAL OF POWER SOURCES,2010,195(24):8044-8051.
APA Poh, Chee Kok.,Tian, Zhiqun.,Bussayajarn, Narissara.,Tang, Zhe.,Sue, Fabing.,...&Lin, JY.(2010).Performance enhancement of air-breathing proton exchange membrane fuel cell through utilization of an effective self-humidifying platinum-carbon catalyst.JOURNAL OF POWER SOURCES,195(24),8044-8051.
MLA Poh, Chee Kok,et al."Performance enhancement of air-breathing proton exchange membrane fuel cell through utilization of an effective self-humidifying platinum-carbon catalyst".JOURNAL OF POWER SOURCES 195.24(2010):8044-8051.
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