Fabrication of nanosized Pt on rutile TiO2 using a standing wave sonochemical reactor (SWSR)--observation of an enhanced catalytic oxidation of CO.
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 CO(2). 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.
Sivakumar
Manickam
M
Ultrasonic Processing Group, Advanced Manufacturing Research Institute (AMRI), National Institute of Advanced Industrial Science and Technology (AIST), 2266-98 Anagahora, Shimoshidami, Moriyama-ku, Nagoya 463-8560, Japan. Sivakumar.Manickam@nottingham.edu.my
Towata
Atsuya
A
Yasui
Kyuichi
K
Tuziuti
Toru
T
Kozuka
Teruyuki
T
Tsujimoto
Masahiko
M
Zhong
Ziyi
Z
Iida
Yasuo
Y
D000327:Adsorption / Q000528:radiation effects; D002245:Carbon Dioxide / Q000737:chemistry* / Q000528:radiation effects; D002384:Catalysis; D004867:Equipment Design; D019544:Equipment Failure Analysis; D049329:Nanostructures / Q000737:chemistry* / Q000528:radiation effects* / Q000648:ultrastructure; D036103:Nanotechnology / Q000295:instrumentation / Q000379:methods; D010084:Oxidation-Reduction / Q000528:radiation effects; D010984:Platinum / Q000737:chemistry* / Q000528:radiation effects*; D011829:Radiation Dosage; D013010:Sonication / Q000295:instrumentation* / Q000379:methods; D014025:Titanium / Q000737:chemistry*
D002245:Carbon Dioxide; C009495:titanium dioxide; D010984:Platinum; D014025:Titanium