Fabrication of IrO2 decorated vertical aligned self-doped TiO2 nanotube arrays for oxygen evolution in water electrolysis

doi:10.1016/j.ijhydene.2018.03.214

	Fabrication of IrO2 decorated vertical aligned self-doped TiO2 nanotube arrays for oxygen evolution in water electrolysis
	Shi, Yan 1,2; Lu, Zhuoxin 1,2; Guo, Lili 1,2; Wang, Zhida 1,2; Guo, Changqing 1,2; Tan, Hongyi 1,2; Yan, Changfeng 1,2
刊名	INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
	2018-05-10
卷号	43 期号:19 页码:9133-9143
关键词	Oxygen evolution reaction Self-doped TiO2 Nanotube arrays Pulse electro-deposition Catalyst-support interaction
ISSN号	0360-3199
DOI	10.1016/j.ijhydene.2018.03.214
通讯作者	Shi, Yan(shiyan@ms.giec.ac.cn) ; Yan, Changfeng(yancf@ms.giec.ac.cn)
英文摘要	To fabricate effective and stable OER electrode in water electrolysis, self-doped TiO2 nanotube arrays which has a higher electrical conductivity than pristine TiO2 nanotube arrays was used as the support for loading IrO2. The self-doped TNTA was fabricated by a simple electrochemical reduction of TNTA in neutral electrolyte solution, and then IrO2 nano particles were deposited by pulse electro-deposition method. The cyclic voltammetric behavior, electrical conductivity and micro structure of self-doped TNTA prepared at different reduction potential were characterized to obtain an optimal performance, and self-doped TNTA prepared under -1.9 V (vs. Ag/AgCl) shows the best electrochemical performance. After depositing IrO2, the OER activity and stability of new electrodes were also determined. Due to the enhanced electrical conductivity of support, the mass activity of IrO2/self-doped TNTA are 50 times higher than IrO2/TNTA. The OER stability of new electrode was evaluated under constant current of 5 mA/cm(2), IrO2/TNTA and IrO2/Ti were also tested for comparison. A higher stability of IrO2/self-doped TNTA electrode is observed than the other two electrodes, and XPS studies indicate a lower oxidation state of Ir in IrO2/self-doped TNTA, this shows a possible interactions between IrO2 and the new support. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
资助项目	Natural Science Foundation of Guangdong Province[2015A030312007] ; Natural Science Foundation of Guangdong Province[2015A030313716] ; Natural Science Foundation of Guangdong Province[2017A030310539] ; National Natural Science Foundation of China[51576201] ; Key Lab of Renewable Energy Foundation of Chinese Academy of Sciences[Y707j81001]
WOS关键词	IRIDIUM OXIDE LOADINGS ; HIGH-SURFACE-AREA ; POWER-TO-GAS ; CATALYST-SUPPORT ; ELECTROCATALYTIC ACTIVITY ; ANODE CATALYST ; ACIDIC MEDIUM ; MEMBRANE ; PERFORMANCE ; SUPERCAPACITORS
WOS研究方向	Chemistry ; Electrochemistry ; Energy & Fuels
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000432502700004
资助机构	Natural Science Foundation of Guangdong Province ; National Natural Science Foundation of China ; 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/344007/23605]
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, Guangdong Key Lab New & Renewable Energy Res & De, Guangzhou 510640, Guangdong, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Shi, Yan,Lu, Zhuoxin,Guo, Lili,et al. Fabrication of IrO2 decorated vertical aligned self-doped TiO2 nanotube arrays for oxygen evolution in water electrolysis[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2018,43(19):9133-9143.
APA	Shi, Yan.,Lu, Zhuoxin.,Guo, Lili.,Wang, Zhida.,Guo, Changqing.,...&Yan, Changfeng.(2018).Fabrication of IrO2 decorated vertical aligned self-doped TiO2 nanotube arrays for oxygen evolution in water electrolysis.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,43(19),9133-9143.
MLA	Shi, Yan,et al."Fabrication of IrO2 decorated vertical aligned self-doped TiO2 nanotube arrays for oxygen evolution in water electrolysis".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 43.19(2018):9133-9143.