Pd-Pt catalysts on fluorinated alumina support studied by X-ray absorption fine structure

被引：0

作者：

Yan, Wensheng ^{[1
]}

Li, Zhongrui ^{[1
]}

Wei, Zheng ^{[1
]}

Wei, Shiqiang ^{[1
]}

机构：

[1] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Peoples R China

来源：

X-RAY ABSORPTION FINE STRUCTURE-XAFS13 | 2007年 / 882卷

关键词：

Pd-Pt alloy; acidic support; XAFS;

D O I：

暂无

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A series of bi-metallic Pd-Pt catalysts supported on both pristine and fluorinated alumina supports were investigated with x-ray absorption spectroscopy. It was found that Pd and Pt form small alloy particles on the pristine alumina support; the composition and the cluster size of the PdPt bimetallic alloys, and the electronic properties of the metals were significantly altered on the fluorinated support. The remarkable increase in sulfur tolerance of the PdPt metallic clusters supported on the fluorine pretreated alumina can be attributed to an electronic depletion of the metals, large particle size and direct participation of the acid sites in the reaction.

引用

页码：711 / +

页数：2

共 50 条

[21] Formation mechanism of Ge nanocrystals embedded in SiO2 studied by fluorescence x-ray absorption fine structure [J].

National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, China .

Chin. Phys., 2007, 9 (2764-2768) :2764-2768

[22] Formation mechanism of Ge nanocrystals embedded in SiO2 studied by fluorescence X-ray absorption fine structure [J].

Yan, Wensheng ;

Li, Zhongrui ;

Sun, Zhihu ;

Kolobov, A. V. ;

Wei, Shiqiang .

X-RAY ABSORPTION FINE STRUCTURE-XAFS13, 2007, 882 :802-+

[23] Formation mechanism of Ge nanocrystals embedded in SiO2 studied by fluorescence x-ray absorption fine structure [J].

Yan Wen-Sheng ;

Li Zhong-Rui ;

Sun Zhi-Hu ;

Pan Zhi-Yun ;

Wei Shi-Qiang .

CHINESE PHYSICS, 2007, 16 (09) :2764-2768

[24] Structural transitions of mechanically alloyed Fe100-xCux systems studied by X-ray absorption fine structure [J].

Wei, SQ ;

Yan, WS ;

Li, YZ ;

Liu, WH ;

Fan, JW ;

Zhang, XY .

PHYSICA B-CONDENSED MATTER, 2001, 305 (02) :135-142

[25] Titanium local structure in tektite probed by X-ray absorption fine structure spectroscopy [J].

Wang, Ling ;

Yoshiasa, Akira ;

Okube, Maki ;

Takeda, Takashi .

JOURNAL OF SYNCHROTRON RADIATION, 2011, 18 :885-890

[26] X-ray absorption spectroscopic study of the alumina supported Fe and FeMo catalysts for methane dehydrogenation [J].

Vandana, S. ;

Huggins, Frank E. ;

Shah, Naresh ;

Pattanaik, Sidhartha .

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, 2023, 263

[27] Analysis X-ray absorption fine structure using absolute X-ray mass attenuation coefficients: Application to molybdenum [J].

Smale, L. F. ;

Chantler, C. T. ;

de Jonge, M. D. ;

Barnea, Z. ;

Tran, C. Q. .

RADIATION PHYSICS AND CHEMISTRY, 2006, 75 (11) :1559-1563

[28] In-situ x-ray absorption fine structure and x-ray diffraction studies of hydrogen intercalation in tungsten oxides [J].

Purans, J ;

Kuzmin, A ;

Guery, C .

OPTICAL ORGANIC AND SEMICONDUCTOR INORGANIC MATERIALS, 1997, 2968 :174-179

[29] Method for restoration of X-ray absorption fine structure in sparse spectroscopic ptychography [J].

Ishiguro, Nozomu ;

Takahashi, Yukio .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 2022, 55 :929-943

[30] Design and development of fluorescence gas detector for X-ray absorption fine structure [J].

Chen, Yu ;

Wang, Jiandong ;

Pu, Shijie ;

Gao, Qian ;

Gan, Tao ;

Huang, Yuying ;

Zhang, Shuo ;

Li, Jiong .

He Jishu/Nuclear Techniques, 2024, 47 (12)

← 1 2 3 4 5 →