Effect of the Morphology of Pt Nanoparticles of Supported Pt Model Catalysts on CO Oxidation

doi:10.1016/S1872-2067(10)60242-2

Abstract

Abstract: In order to investigate the influence of particle morphology on the catalytic activity of supported Pt model catalyst, platinum nanoparticles (NPs) with different morphologies were synthesized by a chemical method and loaded onto SiO₂ to give well-defined supported catalysts. CO oxidation was used as the probe to investigate the catalytic activities of these Pt/SiO₂ model catalysts. X-ray fluorescence, X-ray photoelectron spectroscopy, diffuse reflectance Fourier transform infrared spectroscopy, and transmission electron microscopy characterization demonstrated that the different activities of these Pt/SiO₂ catalysts were due to different crystal surfaces, which strongly influenced the adsorption and oxidation of CO on the Pt NPs.

Key words: platinum nanoparticle, morphology effect, structure sensitive reaction, carbon monoxide oxidation

WANG Jia-Ning, DAI Hong-Xing, HE Hong. Effect of the Morphology of Pt Nanoparticles of Supported Pt Model Catalysts on CO Oxidation[J]. Chinese Journal of Catalysis, 2011, 32(8): 1329-1335.

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URL: https://www.cjcatal.com/EN/10.1016/S1872-2067(10)60242-2

https://www.cjcatal.com/EN/Y2011/V32/I8/1329

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