Issue 2, 2016

CeO2 nanowires self-inserted into porous Co3O4 frameworks as high-performance “noble metal free” hetero-catalysts

Abstract

Recently, mixed metal oxides have attracted tremendous interest because of their great importance for fundamental studies and practical applications in the catalytic field to replace expensive noble metals. Herein, we report the designed synthesis of novel CeO2–Co3O4 mixed metal oxides with complex nanostructures using uniform short CeO2 nanowires self-inserted into ZIF-67 nanocrystals as precursors followed by a thermal annealing treatment. Interestingly, such a synthetic strategy can be easily extended to fabricate other CeO2 nanowires inserted into metal oxide nanoframeworks such as NiCo2O4 and ZnCo2O4. Choosing the NO reduction reaction by CO as the catalytic model, the as-obtained CeO2–Co3O4 hybrids exhibited enhanced catalytic performance, which could be attributed to the strong two-phase interaction between each component.

Graphical abstract: CeO2 nanowires self-inserted into porous Co3O4 frameworks as high-performance “noble metal free” hetero-catalysts

Supplementary files

Article information

Article type
Edge Article
Submitted
11 Sep 2015
Accepted
28 Oct 2015
First published
28 Oct 2015
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY-NC license

Chem. Sci., 2016,7, 1109-1114

CeO2 nanowires self-inserted into porous Co3O4 frameworks as high-performance “noble metal free” hetero-catalysts

X. Wang, S. Zhao, Y. Zhang, Z. Wang, J. Feng, S. Song and H. Zhang, Chem. Sci., 2016, 7, 1109 DOI: 10.1039/C5SC03430B

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