Jump to main content
Jump to site search

Issue 12, 2019
Previous Article Next Article

A heterogeneous single Cu catalyst of Cu atoms confined in the spinel lattice of MgAl2O4 with good catalytic activity and stability for NO reduction by CO

Author affiliations

Abstract

A heterogeneous single Cu catalyst of Cu atoms confined in the spinel lattice of MgAl2O4 (Cu1-MgAl2O4) was prepared by a facile method. Cu1-MgAl2O4 exhibits catalytic activity for NO reduction by CO that is much higher than that of 1.0 wt% Pt/CeO2. Moreover, Cu1-MgAl2O4 exhibits good catalytic stability at high reaction temperatures up to 700 °C during the long-term durability tests. The good stability is attributed to the confinement effect of the stable spinel lattice of Cu1-MgAl2O4 that stabilizes the confined Cu atoms. The high catalytic activity is attributed to the fact that oxygen bonding to Cu atoms of Cu1-MgAl2O4 participates in the oxidation of adsorbed CO with low activation energy, and the adsorption of NO on the resultant oxygen vacancies leads to the formation of N2O with low activation energy, which subsequently decomposes to N2.

Graphical abstract: A heterogeneous single Cu catalyst of Cu atoms confined in the spinel lattice of MgAl2O4 with good catalytic activity and stability for NO reduction by CO

Back to tab navigation

Supplementary files

Article information


Submitted
30 Nov 2018
Accepted
25 Feb 2019
First published
27 Feb 2019

J. Mater. Chem. A, 2019,7, 7202-7212
Article type
Paper

A heterogeneous single Cu catalyst of Cu atoms confined in the spinel lattice of MgAl2O4 with good catalytic activity and stability for NO reduction by CO

J. Wu, Y. Li, Y. Yang, Q. Zhang, L. Yun, S. Wu, C. Zhou, Z. Jiang and X. Zhao, J. Mater. Chem. A, 2019, 7, 7202
DOI: 10.1039/C8TA11528A

Social activity

Search articles by author

Spotlight

Advertisements