Nano Archive

Fabrication of nanosized Pt on rutile TiO2 using a standing wave sonochemical reactor (SWSR) - observation of an enhanced catalytic oxidation of CO

Sivakumar, Manickam and Towata, Atsuya and Yasui, Kyuichi and Tuziuti, Toru and Kozuka, Teruyuki (2010) Fabrication of nanosized Pt on rutile TiO2 using a standing wave sonochemical reactor (SWSR) - observation of an enhanced catalytic oxidation of CO. ULTRASONICS SONOCHEMISTRY .

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Abstract

Fine particles of rutile TiO2 supporting nanosized particles of Pt were prepared by a simultaneous in situ sonochemical reduction and deposition method using a standing wave sonochemical reactor (SWSR). The mean diameter of sonochemically obtained Pt particles are of 2 nm. Following this sonochemical technique, rutile TiO2 was also deposited with different weight percentages of Pt. Catalytic function of the prepared composite catalysts were tested by the oxidation of CO to CO2. From the catalytic activity results, it has been found Out that the catalysts prepared by the sonochemical method exhibited higher catalytic activity for CO oxidation, probably attributed to the higher Pt particle distribution achieved under sonication. Transmission electron microscopy (TEM), X-ray photoelectron spectra (XPS), and diffuse reflectance spectroscopy (DRS) were employed to characterize the resulting material.

Item Type:Article
Subjects:Material Science > Nanochemistry
ID Code:8737
Deposited By:CSMNT
Deposited On:27 Mar 2010 08:16
Last Modified:27 Mar 2010 08:16

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