Stabilization of Catalytically Active Cu plus Surface Sites on TitaniumCopper Mixed-Oxide Films**

被引：56

作者：

Baber, Ashleigh E. ^{[1
]}

Yang, Xiaofang ^{[1
]}

Kim, Hyun You ^{[3
]}

Mudiyanselage, Kumudu ^{[1
]}

Soldemo, Markus ^{[2
]}

Weissenrieder, Jonas ^{[2
]}

Senanayake, Sanjaya D. ^{[1
]}

Al-Mahboob, Abdullah ^{[3
]}

Sadowski, Jerzy T. ^{[3
]}

Evans, Jaime ^{[4
]}

Rodriguez, Jose A. ^{[1
]}

Liu, Ping ^{[3
]}

Hoffmann, Friedrich M. ^{[5
]}

Chen, Jingguang G. ^{[1
,6
]}

Stacchiola, Dario J. ^{[1
]}

机构：

[1] BNL, Dept Chem, Upton, NY 11973 USA

[2] KTH Royal Inst Technol, Stockholm, Sweden

[3] BNL, CFN, Upton, NY 11973 USA

[4] Cent Univ Venezuela, Fac Ciencias, Caracas 1020A, Venezuela

[5] BMCC CUNY, Dept Sci, New York, NY 10007 USA

[6] Columbia Univ, Dept Chem Engn, New York, NY 10027 USA

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2014年 / 53卷 / 21期

基金：

瑞典研究理事会;

关键词：

CO oxidation; IR spectroscopy; mixed oxides; scanning tunneling microscopy; surface chemistry; TRANSITION-METAL OXIDES; PHOTOELECTRON-SPECTROSCOPY; PHOTOCATALYTIC ACTIVITY; AMBIENT-PRESSURE; CARBON-MONOXIDE; OXIDATION; COPPER; CO; ADSORPTION;

D O I：

10.1002/anie.201402435

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The oxidation of CO is the archetypal heterogeneous catalytic reaction and plays a central role in the advancement of fundamental studies, the control of automobile emissions, and industrial oxidation reactions. Copper-based catalysts were the first catalysts that were reported to enable the oxidation of CO at room temperature, but a lack of stability at the elevated reaction temperatures that are used in automobile catalytic converters, in particular the loss of the most reactive Cu+ cations, leads to their deactivation. Using a combined experimental and theoretical approach, it is shown how the incorporation of titanium cations in a Cu2O film leads to the formation of a stable mixed-metal oxide with a Cu+ terminated surface that is highly active for CO oxidation.

引用

页码：5336 / 5340

页数：5

共 20 条

[1] In Situ Imaging of Cu2O under Reducing Conditions: Formation of Metallic Fronts by Mass Transfer [J].