Issue 45, 2018

Morphology-controlled synthesis of 3D, mesoporous, rosette-like CeCoOx catalysts by pyrolysis of Ce[Co(CN)6] and application for the catalytic combustion of toluene

Abstract

We synthesized one-dimensional (1D) nanoparticles, 2D hexagonal nanosheets and 3D rosettes of Ce[Co(CN)6] by a hydrothermal process at different temperatures, and CeCoOx catalysts with similar shapes were obtained by the pyrolysis of Ce[Co(CN)6]. T90 of 1D nanoparticles, 2D hexagonal nanosheets and 3D rosette-like CeCoOx catalysts was 306, 275 and 168 °C, respectively. The 3D ordered mesoporous rosettes of CeCoOx had superior catalytic activity for toluene combustion, superior thermal stability and moisture resistance, and curves for three consecutive catalytic runs showed overlapping due to more oxygen vacancies, larger pore sizes, more surface Ce3+ species, more surface Co3+ species, and chemically adsorbed oxygen on the surface.

Graphical abstract: Morphology-controlled synthesis of 3D, mesoporous, rosette-like CeCoOx catalysts by pyrolysis of Ce[Co(CN)6] and application for the catalytic combustion of toluene

Supplementary files

Article information

Article type
Paper
Submitted
28 Sep 2018
Accepted
25 Oct 2018
First published
27 Oct 2018

Nanoscale, 2018,10, 21307-21319

Morphology-controlled synthesis of 3D, mesoporous, rosette-like CeCoOx catalysts by pyrolysis of Ce[Co(CN)6] and application for the catalytic combustion of toluene

W. Han, H. Zhao, F. Dong and Z. Tang, Nanoscale, 2018, 10, 21307 DOI: 10.1039/C8NR07882C

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