Issue 12, 2013
From the journal:

Nanoscale

Tunable Pt nanocatalysts for the aerobic selox of cinnamyl alcohol†

Lee J. Durndell,a   Christopher M. A. Parlett,a   Nicole S. Hondow,b   Karen Wilsona  and  Adam F. Lee*a  

* Corresponding authors

a Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Cardiff CF10 3AT, UK
E-mail: leeaf@cardiff.ac.uk
Fax: +44 (0) 2920 874030
Tel: +44 (0) 2920 874778

b Institute for Materials Research, School of Process, Environmental and Materials Engineering, University of Leeds, Leeds LS2 9JT, UK

Abstract

The selective aerobic oxidation of cinnamyl alcohol over Pt nanoparticles has been tuned via the use of mesoporous silica supports to control their dispersion and oxidation state. High area two-dimensional SBA-15, and three-dimensional, interconnected KIT-6 silica significantly enhance Pt dispersion, and thus surface PtO2 concentration, over that achievable via commercial low surface area silica. Selective oxidation activity scales with Pt dispersion in the order KIT-6 ≥ SBA-15 > SiO2, evidencing surface PtO2 as the active site for cinnamyl alcohol selox to cinnamaldehyde. Kinetic mapping has quantified key reaction pathways, and the importance of high O2 partial pressures for cinnamaldehyde production.

Graphical abstract: Tunable Pt nanocatalysts for the aerobic selox of cinnamyl alcohol

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Article information

DOI
https://doi.org/10.1039/C3NR00184A
Article type
Paper
Submitted
10 Jan 2013
Accepted
24 Apr 2013
First published
02 May 2013

Nanoscale, 2013,5, 5412-5419

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Tunable Pt nanocatalysts for the aerobic selox of cinnamyl alcohol

L. J. Durndell, C. M. A. Parlett, N. S. Hondow, K. Wilson and A. F. Lee, Nanoscale, 2013, 5, 5412 DOI: 10.1039/C3NR00184A

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