Processing and structural evolution of nanocrystalline Cu-CeO2-x catalysts

被引：32

作者：

Tschope, A

Ying, JY

Chiang, YM

机构：

[1] MIT, DEPT CHEM ENGN, CAMBRIDGE, MA 02139 USA

[2] MIT, DEPT MAT SCI & ENGN, CAMBRIDGE, MA 02139 USA

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1995年 / 204卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

gas condensation synthesis; copper; oxidation;

D O I：

10.1016/0921-5093(95)09972-7

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Inert gas condensation synthesis and post-treatment of nanocrystalline Cu-CeO2-x were found to provide unique control of the structural evolution of this system. X-ray diffraction and scanning transmission electron microscopy were employed to follow the phase transformation, morphological changes; and chemical dispersion in this material. A strong interaction existed between the components to provide a high dispersion of Cu on CeO2-x that was stable through high temperature treatments. The interstitial and surface dispersion of Cu were related to the system's excellent catalytic performance in CO oxidation.

引用

页码：267 / 271

页数：5

共 12 条

[1] MICROWAVE FREQUENCY BEHAVIOR OF THE EPR COPPER(II) ION-PAIRS SPECTRUM FORMED IN CUCE OXIDE [J].