Enhanced Catalytic Activity of Supported Gold Catalysts for Oxidation of Noxious Environmental Pollutant CO | Zendy

Pranjal Saikia | Zendy; Abu Taleb Miah | Zendy; Banajit Malakar | Zendy; Ankur Bordoloi | Zendy

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Enhanced Catalytic Activity of Supported Gold Catalysts for Oxidation of Noxious Environmental Pollutant CO

Author(s) -

Pranjal Saikia,

Abu Taleb Miah,

Banajit Malakar,

Ankur Bordoloi

Publication year - 2015

Publication title -

indian journal of materials science

Language(s) - English

Resource type - Journals

ISSN - 2314-7490

DOI - 10.1155/2015/658346

Subject(s) - catalysis , x ray photoelectron spectroscopy , nanomaterials , materials science , raman spectroscopy , precipitation , noble metal , chemical engineering , catalytic oxidation , deposition (geology) , nanotechnology , metal , nuclear chemistry , chemistry , organic chemistry , metallurgy , physics , optics , meteorology , engineering , paleontology , sediment , biology

Noble metal nanomaterials have attracted mounting research attention for applications in diverse fields of catalysis, biology, and nanotechnology. In the present study, we have undertaken a detailed investigation on synthesis, characterization, and catalytic activity studies for CO oxidation by nanogold catalysts supported over CeO2 and CeO2-ZrO2 (1 : 1 mole ratio). The support systems were prepared by modified, simple precipitation technique and the Au supported samples were synthesized using deposition-precipitation with urea method. The physicochemical characterization was performed by XRD, ICP-AES, BET surface area, FT-IR, UV-Vis DRS, Raman Spectroscopy, TEM, and XPS techniques. Au/CeO2 catalyst showed more than 80% CO conversions at 30°C, whereas Au/CeO2-ZrO2 exhibited ~100% CO conversion at that temperature. The catalytic performance of Au catalysts is highly dependent on the nature of the support

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