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

TY - JOUR

T1 - Fabrication of nanosized Pt on rutile TiO2 using a standing wave sonochemical reactor (SWSR) - observation of an enhanced catalytic oxidation of CO

AU - Sivakumar, Manickam

AU - Towata, Atsuya

AU - Yasui, Kyuichi

AU - Tuziuti, Toru

AU - Kozuka, Teruyuki

AU - Tsujimoto, Masahiko

AU - Zhong, Ziyi

AU - Iida, Yasuo

N1 - Funding Information: The authors thank Dr. Hozumi of AIST, Japan for XPS measurements. The authors also thank the JSPS Postdoctoral Fellowship program for foreign researchers as well as the Industrial Technology Research Grant Program from New Energy and Industrial Technology Development Organization (NEDO) of Japan for financial support of this research. One of the authors (Sivakumar) is grateful to the JSPS for awarding the fellowship.

PY - 2010/1

Y1 - 2010/1

N2 - 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.

AB - 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.

KW - CO oxidation

KW - Cavitation

KW - Nano

KW - Platinum

KW - Sonochemical

KW - Titania

KW - Ultrasound

UR - http://www.scopus.com/inward/record.url?scp=70249123048&partnerID=8YFLogxK

U2 - 10.1016/j.ultsonch.2009.06.019

DO - 10.1016/j.ultsonch.2009.06.019

M3 - 文章

C2 - 19632873

AN - SCOPUS:70249123048

SN - 1350-4177

VL - 17

SP - 213

EP - 218

JO - Ultrasonics Sonochemistry

JF - Ultrasonics Sonochemistry

IS - 1

ER -