Visualizing a Catalyst at Work during the Ignition of the Catalytic Partial Oxidation of Methane

被引：54

作者：

Kimmerle, Bertram ^{[1
]}

Grunwaldt, Jan-Dierk ^{[1
]}

Baiker, Alfons ^{[1
]}

Glatzel, Pieter ^{[2
]}

Boye, Pit ^{[3
]}

Stephan, Sandra ^{[3
]}

Schroer, Christian G. ^{[3
]}

机构：

[1] ETH, Inst Chem & Bioengn, HCI, CH-8093 Zurich, Switzerland

[2] European Synchrotron Radiat Facil, F-38043 Grenoble, France

[3] Tech Univ Dresden, Inst Struct Phys, D-01062 Dresden, Germany

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2009年 / 113卷 / 08期

关键词：

IN-SITU SPECTROSCOPY; TRANSIENT-BEHAVIOR; MICROREACTOR; LIGHTOFF; SYNGAS; EXAFS;

D O I：

10.1021/jp810319v

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We present a spatiotemporal operando X-ray absorption study of a highly dynamic process, the ignition of the noble metal catalyzed partial oxidation of methane. Evolvement and propagation of the platinum component's structural changes are investigated with a high-speed X-ray camera, which in combination with temperature profiling by IR-thermography and catalytic activity measurements by online mass spectrometry gives insight into the first stages of the ignition of the reaction toward hydrogen and carbon monoxide.

引用

页码：3037 / 3040

页数：4

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