Catalytic Activity of Hybrid Metal/Silicon and Metal/Silicon Dioxide Nanocomposites

Here we demonstrate that H-terminated porous silicon (PSi) powders and layers can be utilized as highly efficient reductive templates for noble metal salts. The metal salt reduction results in a metal nanoparticle (NP) formation in the porous matrix of PSi. Gold NP formation has been monitored in-si...

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Bibliographic Details
Main Authors: Polisski, Sergej, Goller, Bernhard, Lapkin, Alexei, Kovalev, Dmitry
Format: Conference Proceeding
Language:English
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Summary:Here we demonstrate that H-terminated porous silicon (PSi) powders and layers can be utilized as highly efficient reductive templates for noble metal salts. The metal salt reduction results in a metal nanoparticle (NP) formation in the porous matrix of PSi. Gold NP formation has been monitored in-situ by measuring the plasmon resonance response. Pt NPs, formed in the pores of PSi, were investigated by transmission electron microscopy (TEM) and energy-dispersive X-ray (EDX) analysis. Furthermore, hybrid Pt/PSi nanocomposites exhibit a high catalytic activity for CO oxidation. Some of the samples were oxidized to obtain Pt/PSiOx nanocomposites for comparison of catalytic activity.
ISSN:1938-5862
1938-6737
DOI:10.1149/1.2982543