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Issue 81, 2014
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Monodisperse, nanoporous ceria microspheres embedded with Pt nanoparticles: general facile synthesis and catalytic application

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Abstract

A monodisperse Pt/ceria hybrid with controlled nanoporous structure was fabricated with the aid of poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) microspheres as a hard template. Functional groups on the polymer microspheres interacted with Pt species and then cerium precursors were impregnated into the microsphere pores through a sol–gel method. Porous ceria microspheres embedded with uniform and fine Pt nanoparticles formed after removal of the polymer templates by calcination. The hierarchical Pt/ceria hybrid possesses catalytic activity, excellent stability and ease of recyclability. For example, a highly efficient catalytic reduction of 4-nitrophenol (4-NP) with sodium borohydride was accomplished. This facile and general synthetic method could be extended to other novel metal/oxide hybrid combinations.

Graphical abstract: Monodisperse, nanoporous ceria microspheres embedded with Pt nanoparticles: general facile synthesis and catalytic application

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Supplementary files

Article information


Submitted
10 Jun 2014
Accepted
12 Aug 2014
First published
13 Aug 2014

RSC Adv., 2014,4, 42965-42970
Article type
Paper
Author version available

Monodisperse, nanoporous ceria microspheres embedded with Pt nanoparticles: general facile synthesis and catalytic application

L. Zhou, X. Li, Y. Wang, M. Hong, Y. Liang and J. Zhao, RSC Adv., 2014, 4, 42965
DOI: 10.1039/C4RA08423C

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