Size dependent study of MeOH decomposition over size-selected pt nanoparticles synthesized via micelle encapsulation

    Authors

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

    Comments

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    Abbreviated Journal Title

    Catal. Lett.

    Keywords

    methanol decomposition; MeOH; H-2 production; micelles; Pt; nanoparticle; TiO2; catalysis; XPS; TEM; AFM; mass flow reactor; mass; spectrometry; CATALYTIC METHANOL DECOMPOSITION; ELECTRON-BEAM LITHOGRAPHY; BLOCK-COPOLYMER MICELLES; HYDROGEN-PRODUCTION; AU NANOPARTICLES; MODEL; CATALYSTS; CARBON-MONOXIDE; SURFACES; OXIDE; GOLD; Chemistry, Physical

    Abstract

    We present here the size-dependent decomposition of methanol (MeOH) over narrowly distributed Pt nanoparticles supported on nanocrystalline anatase TiO2 powder. Micelle encapsulation has been used to create Pt catalysts with average particle sizes of similar to 4, 6, and 8 nm. A packed bed mass flow reactor and mass spectrometry were employed to quantify the catalyst's activity and selectivity. Among the catalysts tested the smallest nanoparticles showed the best performance including an onset reaction temperature of similar to 145 degrees C. No byproducts such as CO2 or CH4 were observed in the test range of 100-330 degrees C.

    Journal Title

    Catalysis Letters

    Volume

    118

    Issue/Number

    1-2

    Publication Date

    1-1-2007

    Document Type

    Article

    Language

    English

    First Page

    1

    Last Page

    7

    WOS Identifier

    WOS:000249646200001

    ISSN

    1011-372X

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