Title

Support dependence of MeOH decomposition over size-selected Pt nanoparticles

Authors

Authors

J. R. Croy; S. Mostafa; J. Liu; Y. H. Sohn; H. Heinrich;B. R. Cuenya

Comments

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Abbreviated Journal Title

Catal. Lett.

Keywords

Pt nanoparticles; oxide supports; methanol; CeO2; TiO2; ZrO2; SiO2; Al2O3; XPS; AFM; TEM; mass flow reactor; METHANOL DECOMPOSITION; GOLD NANOPARTICLES; CARBON-MONOXIDE; METAL-OXIDES; CATALYSTS; OXIDATION; PLATINUM; GAS; CO; CERIA; Chemistry, Physical

Abstract

We present here the decomposition of methanol over Pt nanoparticles supported on a series of oxide powders. The samples tested may be roughly grouped in two categories consisting of large (similar to 15-18 nm) and small (similar to 8-9 nm) Pt particles deposited on reducible (CeO2, TiO2) and non-reducible (SiO2, ZrO2, Al2O3) supports. The smallest particles (similar to 8 nm), deposited on ZrO2, were found to be cationic and the most active for the decomposition of methanol. Furthermore, the stability of metallic Pt and its oxides was observed to be dependent on the choice of support. In all Pt containing samples the reaction proceeds via he direct decomposition of methanol, as no significant amounts of by-products were detected in the experimental range of 100-300 degrees C.

Journal Title

Catalysis Letters

Volume

119

Issue/Number

3-4

Publication Date

1-1-2007

Document Type

Article

Language

English

First Page

209

Last Page

216

WOS Identifier

WOS:000250996200003

ISSN

1011-372X

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