Design and Performance Investigation of a Carbon-Free Pt/Ti Cathode with Low Membrane Degradation Rate for Proton Exchange Membrane Water Electrolyser

doi:10.1002/ente.201800781

	Design and Performance Investigation of a Carbon-Free Pt/Ti Cathode with Low Membrane Degradation Rate for Proton Exchange Membrane Water Electrolyser
	Shi, Yan 1,2,3; Guo, Lili 1; Lu, Zhuoxin 1,2,3; Wang, Zhida 1,2,3; Gan, Yuan 1; Guo, Chongqing 1,2,3; Tan, Hongyi 1,2,3; Yan, Changfeng 1,2,3
刊名	ENERGY TECHNOLOGY
	2019-04-01
卷号	7 期号:5 页码:10
关键词	carbon-free current collectors membrane degradation proton exchange membrane water electrolysis Pt Ti cathodes
ISSN号	2194-4288
DOI	10.1002/ente.201800781
通讯作者	Shi, Yan(shiyan@ms.giec.ac.cn) ; Yan, Changfeng(yancf@ms.giec.ac.cn)
英文摘要	In a proton exchange membrane (PEM) water electrolyser, Pt-coated porous titanium plate always acts as the current collector both in the anode and cathode. However, the Pt particles on the Ti current collector cannot take part in the electrochemical reactions and thus lead to a lower utilization of the noble metal. In this work, the Pt-coated Ti current collector is directly used as the cathode in the PEM water electrolyser instead of the conventional Pt/C electrode. To improve the performance, Nafion ionomer is coated on the Pt/Ti electrode to enlarge the electrochemical surface area (ECSA); the ECSA of the Pt/Ti electrode is increased by six times, and the utilization of Pt can be elevated to 45%. The voltage of the electrolyser with the Pt/Ti electrode is only 31mV higher than the conventional Pt/C catalyst layer at 1 A cm(-2). After stability tests, an obvious membrane thinning is observed using Pt/C as the cathode while the membrane of the electrolyser with the ionomer-coated Pt/Ti cathode does not show a significant change in thickness. The F ion emission rate shows the membrane degradation rate is reduced by 15 times compared with the conventional Pt/C cathode.
资助项目	DNL Cooperation Fund, CAS[DNL180405] ; National Natural Science Foundation of China[51576201] ; Natural Science Foundation of Guangdong Province[2015A030312007] ; Natural Science Foundation of Guangdong Province[2017A030310539] ; Key Lab of Renewable Energy Foundation of Chinese Academy of Sciences[Y707j81001]
WOS关键词	HYDROGEN EVOLUTION REACTION ; PEM FUEL-CELL ; SURFACE-DIFFUSION ; CATALYST LAYER ; ALLOY FORMATION ; H-ADATOMS ; OXYGEN ; IONOMER ; ASSEMBLIES ; ELECTRODES
WOS研究方向	Energy & Fuels
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000471344300014
资助机构	DNL Cooperation Fund, CAS ; National Natural Science Foundation of China ; Natural Science Foundation of Guangdong Province ; Key Lab of Renewable Energy Foundation of Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/25260]
专题	中国科学院广州能源研究所
通讯作者	Shi, Yan; Yan, Changfeng
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, 2 Nengyuan Rd, Guangzhou 510640, Guangdong, Peoples R China 2.Key Lab New & Renewable Energy Res & Dev Guangdon, 2 Nengyuan Rd, Guangzhou 510640, Guangdong, Peoples R China 3.Dalian Natl Lab Clean Energy, 457 Zhongshan Rd, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Shi, Yan,Guo, Lili,Lu, Zhuoxin,et al. Design and Performance Investigation of a Carbon-Free Pt/Ti Cathode with Low Membrane Degradation Rate for Proton Exchange Membrane Water Electrolyser[J]. ENERGY TECHNOLOGY,2019,7(5):10.
APA	Shi, Yan.,Guo, Lili.,Lu, Zhuoxin.,Wang, Zhida.,Gan, Yuan.,...&Yan, Changfeng.(2019).Design and Performance Investigation of a Carbon-Free Pt/Ti Cathode with Low Membrane Degradation Rate for Proton Exchange Membrane Water Electrolyser.ENERGY TECHNOLOGY,7(5),10.
MLA	Shi, Yan,et al."Design and Performance Investigation of a Carbon-Free Pt/Ti Cathode with Low Membrane Degradation Rate for Proton Exchange Membrane Water Electrolyser".ENERGY TECHNOLOGY 7.5(2019):10.