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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

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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

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Publication details

The article was received on 28 Sep 2018, accepted on 25 Oct 2018 and first published on 27 Oct 2018


Article type: Paper
DOI: 10.1039/C8NR07882C
Citation: Nanoscale, 2018, Advance Article
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    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, Advance Article , DOI: 10.1039/C8NR07882C

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