Support dependence of MeOH decomposition over size-selected Pt nanoparticles

    Authors

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

    Comments

    Authors: contact us about adding a copy of your work at STARS@ucf.edu

    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

    Share

    COinS