A Single-Site Platinum CO Oxidation Catalyst in Zeolite KLTL: Microscopic and Spectroscopic Determination of the Locations of the Platinum Atoms

被引：277

作者：

Kistler, Joseph D. ^{[1
]}

Chotigkrai, Nutchapon ^{[1
,4
]}

Xu, Pinghong ^{[1
]}

Enderle, Bryan ^{[1
]}

Praserthdam, Piyasan ^{[4
]}

Chen, Cong-Yan ^{[1
,2
]}

Browning, Nigel D. ^{[3
]}

Gates, Bruce C. ^{[1
]}

机构：

[1] Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA 95616 USA

[2] Chevron Energy Technol Co, Richmond, CA 94802 USA

[3] Pacific Northwest Natl Lab, Fundamental & Computat Sci Div, Richland, WA 99352 USA

[4] Chulalongkorn Univ, Dept Chem Engn, Ctr Excellence Catalysis & Catalyt React Engn, Bangkok, Thailand

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2014年 / 53卷 / 34期

关键词：

electron microscopy; EXAFS; platinum; single-site catalysts; zeolites; ALKALI-METAL; NAX; DECOMPOSITION; TEMPERATURES; PARTICLES; LIGANDS; CATIONS; COMPLEX; AMMONIA;

D O I：

10.1002/anie.201403353

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A stable site-isolated mononuclear platinum catalyst with a well-defined structure is presented. Platinum complexes supported in zeolite KLTL were synthesized from [Pt(NH3)(4)](NO3)(2), oxidized at 633 K, and used to catalyze CO oxidation. IR and X-ray absorption spectra and electron micrographs determine the structures and locations of the platinum complexes in the zeolite pores, demonstrate the platinum-support bonding, and show that the platinum remained site isolated after oxidation and catalysis.

引用

页码：8904 / 8907

页数：4

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