Issue 9, 2019
From the journal:

Catalysis Science & Technology

Gas-phase synthesis of morphology-controlled Pt nanoparticles and their impact on cinnamaldehyde hydrogenation†

Sosuke Kato,a   Junya Ohyama, ORCID logo *bc   Masato Machida ORCID logo bc  and  Atsushi Satsuma ORCID logo *ac  

* Corresponding authors

a Department of Materials Chemistry, Graduate school of Engineering, Nagoya University, Nagoya, Japan
E-mail: satsuma@chembio.nagoya-u.ac.jp

b Faculty of Advanced Science and Technology, Kumamoto University, Kumamoto, Japan
E-mail: ohyama@kumamoto-u.ac.jp

c Elements Strategy Initiative for Catalysts and Batteries, Kyoto University, Kyoto, Japan

Abstract

Gas-phase synthesis of morphology-controlled Pt nanoparticles (PtNPs) is conducted with carbon monoxide as a protective agent. Depending on the preparation temperature, Pt nanocubes with Pt{100} or cuboctahedra with Pt{111} and Pt{100} facets are formed by reducing Pt/C and Pt/SiO2 under a CO/H2 flow, although Pt nanospheres are formed under a H2 flow in the absence of CO. The influence of the Pt nanoparticle morphology on cinnamaldehyde hydrogenation is explored by comparing the hydrogenation performances of Pt nanocubes, cuboctahedrons, and spheres with various particle sizes. The hydrogenation activity and selectivity toward cinnamyl alcohol are enhanced in the order Pt nanocuboctahedra > Pt nanocubes > Pt nanospheres; thus, Pt{111} facets > Pt{100} facets > rounded (stepped) surface with respect to the surface structure.

Graphical abstract: Gas-phase synthesis of morphology-controlled Pt nanoparticles and their impact on cinnamaldehyde hydrogenation

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Article information

DOI
https://doi.org/10.1039/C9CY00158A
Article type
Paper
Submitted
23 Jan 2019
Accepted
27 Feb 2019
First published
28 Feb 2019

Catal. Sci. Technol., 2019,9, 2097-2102

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Gas-phase synthesis of morphology-controlled Pt nanoparticles and their impact on cinnamaldehyde hydrogenation

S. Kato, J. Ohyama, M. Machida and A. Satsuma, Catal. Sci. Technol., 2019, 9, 2097 DOI: 10.1039/C9CY00158A

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