Issue 32, 2017

Microwave-assisted deposition of a highly active cobalt catalyst on mesoporous silica for photochemical CO2 reduction

Abstract

Coupling with robust surfaces is a promising approach to improve the stability and recyclability of highly active molecular catalysts. This study builds on our prior success to deposit a Co(III) cyclam complex, where cyclam is 1,4,8,11-tetraazacyclotetradecane, on mesoporous silica via a microwave-assisted process. The Co(III) complex was successfully deposited on the silica surface through reacting with silanol groups in the silica mesopores. The resulting surface Co(III) catalyst was characterized by different techniques and tested in photochemical CO2 reduction in the presence of p-terphenyl as a photosensitizer. The synthesized Co(III) catalyst showed significantly higher activity and selectivity than the unbound Co(III) cyclam complex and a surface Co(III) catalyst prepared by other methods. Microwave-assisted heating was found to be essential for the deposition of uniform Co(III) sites in the silica mesopores, which likely accounts for the superior activity and selectivity of the synthesized surface Co(III) catalyst.

Graphical abstract: Microwave-assisted deposition of a highly active cobalt catalyst on mesoporous silica for photochemical CO2 reduction

Supplementary files

Article information

Article type
Paper
Submitted
03 ဧပြီ 2017
Accepted
22 မေ 2017
First published
23 မေ 2017

Dalton Trans., 2017,46, 10721-10726

Microwave-assisted deposition of a highly active cobalt catalyst on mesoporous silica for photochemical CO2 reduction

T. Fenton, S. Gillingham, T. Jin and G. Li, Dalton Trans., 2017, 46, 10721 DOI: 10.1039/C7DT01207A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements