Journal
NANOSCALE
Volume 10, Issue 45, Pages 21307-21319Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8nr07882c
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Funding
- National Natural Science Foundation of China [21507137, 21707145, 51808529]
- Key Science and Technology Program of Lanzhou City [2017-4-111]
- Province Natural Science Foundation of GanSu [18JR3RA383]
- West Light Foundation of the Chinese Academy of Sciences
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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)]. T-90 of 1D nanoparticles, 2D hexagonal nanosheets and 3D rosette-like CeCoOx catalysts was 306, 275 and 168 degrees 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.
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