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Ordered Nafion (R) ionomers decorated polypyrrole nanowires for advanced electrochemical applications
Sun, Ruili1,2; Xia, Zhangxun1; Li, Huanqiao1; Jing, Fenning1; Wang, Suli1
KeywordElectrochemical Polymerization Polypyrrole Nanowires Proton Conductivity Fuel Cells
Source PublicationJOURNAL OF ENERGY CHEMISTRY
2018-05-01
ISSN2095-4956
DOI10.1016/j.jechem.2017.07.005
Volume27Issue:3Pages:854-858
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Applied ; Chemistry, Physical ; Energy & Fuels ; Engineering, Chemical
WOS Research AreaChemistry ; Energy & Fuels ; Engineering
WOS KeywordOXYGEN REDUCTION REACTION ; MEMBRANE FUEL-CELLS ; LOW-PLATINUM ; PERFORMANCE ; ELECTROCATALYSTS ; ARRAYS ; DURABILITY ; CHALLENGES ; CATALYSTS ; LAYER
AbstractFabrication of novel electrode materials with ordered proton-migration channels is an effective strategy to enhance the proton conductivity of the electrode for polymer electrolyte membrane fuel cells. Here we report the electrochemical fabrication of ordered Nafion (R) ionomers decorated polypyrrole nanowires to construct the ordered proton-migration channels. Based on the electrostatic interaction between Nafion (R) ionomers and the polymer intermediate, ordered Nafion (R) ionomers decorated polypyrrole nanowires could be fabricated via chronoamperometry with varying contents of Nafion (R) ionomers. The morphologies, charge-storage performances, electron conductivity and proton conductivity of the composites are investigated by scanning electron microscopy, cyclic-voltammetry, galvanostatic charge-discharge measurement and electrochemical impedance spectroscopy. With the modification effect of Nafion (R) ionomers on polypyrrole nanowires, the composite shows greater ordered structure relative to another without Nafion (R) ionomers and the electrochemical performances change with the content of Nafion (R) ionomers. The composite could achieve a high specific capacitance of 356 F/g at 1 A/g with a 0.62-fold enhancement compared to polypyrrole nanowires without Nafion (R) ionomers. It also displays a superior electrical conductivity of 49 S/cm and a quite high proton conductivity of 0.014 S/cm at working conditions of fuel cells, which are associated with the requirements of fuel cells and have the potential to be the electrode material for a large range of electrochemical energy conversion devices. (C) 2017 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. and Science Press. All rights reserved.
Language英语
WOS IDWOS:000430515900026
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/169023
Collection中国科学院大连化学物理研究所
Corresponding AuthorWang, Suli
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Div Fuel Cells & Battery, Dalian 116023, Liaoning, Peoples R China
2.Univ Chinese Acad Sci, Beijing 049, Peoples R China
Recommended Citation
GB/T 7714
Sun, Ruili,Xia, Zhangxun,Li, Huanqiao,et al. Ordered Nafion (R) ionomers decorated polypyrrole nanowires for advanced electrochemical applications[J]. JOURNAL OF ENERGY CHEMISTRY,2018,27(3):854-858.
APA Sun, Ruili,Xia, Zhangxun,Li, Huanqiao,Jing, Fenning,&Wang, Suli.(2018).Ordered Nafion (R) ionomers decorated polypyrrole nanowires for advanced electrochemical applications.JOURNAL OF ENERGY CHEMISTRY,27(3),854-858.
MLA Sun, Ruili,et al."Ordered Nafion (R) ionomers decorated polypyrrole nanowires for advanced electrochemical applications".JOURNAL OF ENERGY CHEMISTRY 27.3(2018):854-858.
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