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题名:
Structural Dependence of Platinum Nanostructures on Catalytic Performance in Aromatic Azo Compound Reaction Investigated by X-ray Absorption Fine Structure Spectroscopy
作者: Zhang, D; Mcleod, J; Hu, L; Lu, SL; Ma, YY; Zhong, J; Jiang, Z; Gu, HW; Sun, XH
刊名: JOURNAL OF PHYSICAL CHEMISTRY C
出版日期: 2016
卷号: 120, 期号:27, 页码:14712-14718
DOI: 10.1021/acs.jpcc.6b04440
通讯作者: Sun, XH (reprint author), Soochow Univ, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Inst Funct Nano & Soft Mat Lab FUNSOM, Soochow Univ Western Univ Ctr Synchrotron Radiat, Suzhou 215123, Jiangsu, Peoples R China. ; Gu, HW (reprint author), Soochow Univ, Coll Chem Chem Engn & Mat Sci, Key Lab Organ Synth Jiangsu Prov, Suzhou 215123, Peoples R China. ; Jiang, Z (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China.
文章类型: 期刊论文
英文摘要: Uniform one-dimensional Pt nanowires prepared by etching FePt nanowires precursor exhibit high conversion yield and selectivity in aromatic azo compounds reaction compared to the other Pt-based catalysts, such as Pt nanorods and Pt nanopartides. The X-ray absorption near edge structure (XANES) and extended X-ray absorption fine structure (EXAFS) were employed to investigate the electronic structure and short-range local environment of the three Pt nanostructures, revealing that the high density of unsaturated coordinated atoms in the short-range local structure of Pt nanowires contribute to the superior catalytic performance of the nanowires. Furthermore, the quasi in situ XANES was carried out to monitor the electronic structural evolution of the Pt nanowires during the different stages in the whole reaction process, which further clarify the Pt OH involved catalytic reaction mechanism. This work delineates the correlation between catalytic performance and structural sensitivity of Pt-based catalysts investigated by X-ray absorption spectroscopy.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000379990400028
ISSN号: 1932-7447
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/26634
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

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Recommended Citation:
Zhang, D,Mcleod, J,Hu, L,et al. Structural Dependence of Platinum Nanostructures on Catalytic Performance in Aromatic Azo Compound Reaction Investigated by X-ray Absorption Fine Structure Spectroscopy[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2016-01-01,120(27):14712-14718.
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