A high-performance PEM fuel cell with ultralow platinum electrode via electrospinning and underpotential deposition

	A high-performance PEM fuel cell with ultralow platinum electrode via electrospinning and underpotential deposition
	Yi, Baolian 1; Hong, Shaojing 1,2; Hou, Ming 1; Zhang, Hongjie 1,2; Jiang, Yongyi 1,2; Shao, Zhigang 1
刊名	ELECTROCHIMICA ACTA
	2017-08-10
卷号	245 页码:395-401
关键词	proton exchange membrane fuel cell electrospun electrode underpotential deposition
英文摘要	A novel PEMFC electrode (E-U electrode) with ultralow platinum is prepared by electrospinning and underpotential deposition techniques. The platinum skin (Ptskin) is in situ deposited on the surface of Pd nanoparticle in the electrospun Pd/ C catalyst layer. The energy-dispersive X-ray spectroscopy (EDS) mapping of the cross-section of a single fiber confirms that the distribution of Pd/C@ Pt-skin catalysts and Nafion1 ionomer matches well in the E-U electrode. The high porosity and large electrochemical surface area (ECSA) of the E-U electrode mitigates the oxygen transfer resistance. The peak power density of the E-U electrode arrives at 0.62 W cm(-2) with a Pt loading of 19 mg cm(-2), which is higher than that of the conventional electrode (0.55 W cm(-2)) with a Pt loading of 100 mg cm(-2). The degradation rate of peak power density of the E-U electrode is only 4.8% after accelerated stability test (AST) for 30000 cyclic voltammetry (CV) cycles, demonstrating a better durability than that of the conventional electrode. The enhanced durability of the E-U electrode is attributed to nanofiber structure and interaction between Pd and Pt in the Pd/C@ Pt-skin catalyst. (C) 2017 Published by Elsevier Ltd.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Electrochemistry
研究领域[WOS]	Electrochemistry
关键词[WOS]	OXYGEN REDUCTION REACTION ; SUPPORTED PD NANOPARTICLES ; CORE-SHELL ; MONOLAYER ELECTROCATALYSTS ; O-2 REDUCTION ; CATALYSTS ; CATHODE ; LAYER ; NANOSTRUCTURES ; RESISTANCE
收录类别	SCI
语种	英语
WOS记录号	WOS:000406762700043
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/149818]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Fuel Cell Syst & Engn Lab, Dalian 116023, Liaoning, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Yi, Baolian,Hong, Shaojing,Hou, Ming,et al. A high-performance PEM fuel cell with ultralow platinum electrode via electrospinning and underpotential deposition[J]. ELECTROCHIMICA ACTA,2017,245:395-401.
APA	Yi, Baolian,Hong, Shaojing,Hou, Ming,Zhang, Hongjie,Jiang, Yongyi,&Shao, Zhigang.(2017).A high-performance PEM fuel cell with ultralow platinum electrode via electrospinning and underpotential deposition.ELECTROCHIMICA ACTA,245,395-401.
MLA	Yi, Baolian,et al."A high-performance PEM fuel cell with ultralow platinum electrode via electrospinning and underpotential deposition".ELECTROCHIMICA ACTA 245(2017):395-401.