Surface Oxygen Vacancy-Dependent Electrocatalytic Activity of W18O49 Nanowires

	Surface Oxygen Vacancy-Dependent Electrocatalytic Activity of W18O49 Nanowires
	Zhou, Huawei 1; Shi, Yantao 1; Dong, Qingshun 1; Lin, Jian 2; Wang, Aiqin 2; Ma, Tingli 1,3
刊名	journal of physical chemistry c
	2014-09-04
卷号	118 期号:35 页码:20100-20106
英文摘要	surface oxygen vacancies (sovs) are the most relevant surface defects in metal oxides (mos), and they participate in numerous physical and chemical reactions. however, information on the nature, distribution, formation, and reactivity of sovs, as well as relationships among sovs, is lacking. investigating sovs is difficult because of disturbance by the crystal phase, morphology of bulk materials, and synergistic effect between substrate and catalyst host. herein, by clarifying the origin of sovs and their distribution, one-dimensional (1d) tungsten oxide nanowires (nws) with numerous sovs were synthesized. compared with the three-dimensional nanostructure, the high aspect ratio of id nw exposed the sovs on the surface of the nanostructure rather than embedding them in the bulk. to investigate accurately the effect of sovs on electrocatalytic activity, we dearly identified how sovs of tungsten oxide catalyst regulate iodide reduction reactions in the solar cell by in situ filling of sovs in electrodes and maintaining the crystal phase and morphology of nws. iodide reduction reaction activity was notably dependent on tungsten oxide catalyst sovs, which serve as important catalytic site descriptors. these findings may clarify the fundamental features of sovs on metal oxides and contribute to the rational design of efficient catalysts and supports.
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	chemistry, physical ; nanoscience & nanotechnology ; materials science, multidisciplinary
研究领域[WOS]	chemistry ; science & technology - other topics ; materials science
关键词[WOS]	sensitized solar-cells ; near-infrared absorption ; counter electrodes ; catalytic-activity ; charge-transfer ; tungsten-oxide ; low-cost ; nanostructures ; diffusion ; dioxide
收录类别	SCI
语种	英语
WOS记录号	WOS:000341337700006
公开日期	2016-05-09
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/145686]
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.Dalian Univ Technol, Sch Chem, State Key Lab Fine Chem, Dalian 116024, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 3.Kyushu Inst Technol, Grad Sch Life Sci & Syst Engn, Kitakyushu, Fukuoka 8080196, Japan
推荐引用方式 GB/T 7714	Zhou, Huawei,Shi, Yantao,Dong, Qingshun,et al. Surface Oxygen Vacancy-Dependent Electrocatalytic Activity of W18O49 Nanowires[J]. journal of physical chemistry c,2014,118(35):20100-20106.
APA	Zhou, Huawei,Shi, Yantao,Dong, Qingshun,Lin, Jian,Wang, Aiqin,&Ma, Tingli.(2014).Surface Oxygen Vacancy-Dependent Electrocatalytic Activity of W18O49 Nanowires.journal of physical chemistry c,118(35),20100-20106.
MLA	Zhou, Huawei,et al."Surface Oxygen Vacancy-Dependent Electrocatalytic Activity of W18O49 Nanowires".journal of physical chemistry c 118.35(2014):20100-20106.