Effect of Ni-x,Co3-x O-4 Modification for CdSe/TiO2 Nanotube Arrays on Activity of Photoelectrochemical Oxidation of Water

doi:10.3969/j.issn.1001-4861.2013.00.051

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	Effect of Ni-x,Co3-x O-4 Modification for CdSe/TiO2 Nanotube Arrays on Activity of Photoelectrochemical Oxidation of Water
	Xu Zhen 1,2; Li Juan1 ; Li Xinjun1
	2013-03-10
Source Publication	CHINESE JOURNAL OF INORGANIC CHEMISTRY
Volume	29 Issue:3 Pages:429-436
Abstract	CdSe/TiO2 nanotube array (TiO(2)NTA) film was modified by NixCo3-x,O-4 through the method of ammonia-evaporation induction growth. The films were characterized by X-ray diffraction, field emission scanning electron microscopy, energy dispersive spectroscopy, X-ray photoelectron spectroscopy and UV-Vis diffuse reflectance spectroscopy. To characterize the photoanodes activity of photoelectrochemical oxidation of water, the chopped linear sweep voltammetry was performed in a three-electrode system under simulated solar irradiation. The results show that CdSe/TiO(2)NTA is covered by a thin layer of NixCo3-x,O-4 with the spinel structure in which Ni and Co are both in divalent and trivalent states. The modification of NixCo3-x,O-4 on the CdSe/TiO(2)NTA can lower the overpotential of water oxidation by about 430 mV compared with the CdSe/TiO(2)NTA. The introduction of Ni into the structure of Co3O4 leads to the surface enhancement of trivalent cations (Ni3+ and Co3+) and consequently facilitates the oxidation of water.
Subtype	Article
Keyword	Tio2 Nanotube Arrays Cdse Nixco3-x O-4 Ammonia-evaporation Induction Growth Photoelectrochemical Oxidation Of Water
WOS Headings	Science & Technology ; Physical Sciences
DOI	10.3969/j.issn.1001-4861.2013.00.051
WOS Subject Extended	Chemistry
WOS Keyword	VISIBLE-LIGHT IRRADIATION ; OXYGEN EVOLUTION ; SPRAY-PYROLYSIS ; COBALT OXIDE ; ELECTROCHEMICAL EVOLUTION ; ELECTROCATALYTIC ACTIVITY ; CATALYST ; FILMS ; TITANIUM ; NICO2O4
Indexed By	SCI
Language	英语
WOS Subject	Chemistry, Inorganic & Nuclear
WOS ID	WOS:000319541300001
Citation statistics	Cited Times:1[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.giec.ac.cn/handle/344007/10085
Collection	中国科学院广州能源研究所
Affiliation	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy & Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
First Author Affilication	GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences
Recommended Citation GB/T 7714	Xu Zhen,Li Juan,Li Xinjun. Effect of Ni-x,Co3-x O-4 Modification for CdSe/TiO2 Nanotube Arrays on Activity of Photoelectrochemical Oxidation of Water[J]. CHINESE JOURNAL OF INORGANIC CHEMISTRY,2013,29(3):429-436.
APA	Xu Zhen,Li Juan,&Li Xinjun.(2013).Effect of Ni-x,Co3-x O-4 Modification for CdSe/TiO2 Nanotube Arrays on Activity of Photoelectrochemical Oxidation of Water.CHINESE JOURNAL OF INORGANIC CHEMISTRY,29(3),429-436.
MLA	Xu Zhen,et al."Effect of Ni-x,Co3-x O-4 Modification for CdSe/TiO2 Nanotube Arrays on Activity of Photoelectrochemical Oxidation of Water".CHINESE JOURNAL OF INORGANIC CHEMISTRY 29.3(2013):429-436.

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