Issue 60, 2021
From the journal:

Chemical Communications

The facet effect of ceria nanoparticles on platinum dispersion and catalytic activity of methanol partial oxidation†

Kasala Prabhakar Reddy,a   Hanseul Choi,ab   Daeho Kim, ORCID logo ab   Minkee Choi, ORCID logo c   Ryong Ryoo ORCID logo *ab  and  Jeong Young Park ORCID logo *ab  

* Corresponding authors

a Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea

b Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
E-mail: rryoo@kaist.ac.kr, jeongypark@kaist.ac.kr

c Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea

Abstract

The effect of platinum-supported nano-shaped ceria catalysts on methanol partial oxidation and methyl formate product selectivity has been investigated. A Pt-supported CeO2 nanocube catalyst had a higher turnover frequency than nanosphere catalysts; however, nanosphere catalysts showed higher selectivity towards methyl formate. The observed ceria shape effect in catalysis was associated with the shape-dependent Pt dispersion and its oxidation states. Furthermore, in situ studies revealed that the reduced platinum and mono-dentate methoxy group were responsible for the higher turnover frequency.

Graphical abstract: The facet effect of ceria nanoparticles on platinum dispersion and catalytic activity of methanol partial oxidation

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Article information

DOI
https://doi.org/10.1039/D1CC02728J
Article type
Communication
Submitted
25 May 2021
Accepted
28 Jun 2021
First published
28 Jun 2021

Chem. Commun., 2021,57, 7382-7385

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The facet effect of ceria nanoparticles on platinum dispersion and catalytic activity of methanol partial oxidation

K. P. Reddy, H. Choi, D. Kim, M. Choi, R. Ryoo and J. Y. Park, Chem. Commun., 2021, 57, 7382 DOI: 10.1039/D1CC02728J

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