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Surface Oxygen Vacancy-Dependent Electrocatalytic Activity of W18O49 Nanowires
Zhou, Huawei1; Shi, Yantao1; Dong, Qingshun1; Lin, Jian2; Wang, Aiqin2; Ma, Tingli1,3
刊名JOURNAL OF PHYSICAL CHEMISTRY C
2014-09-04
DOI10.1021/jp504368v
118期:35页:20100-20106
收录类别SCI
文章类型Article
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
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.
语种英语
WOS记录号WOS:000341337700006
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/145686
专题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
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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.
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