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

Manickam Sivakumar*, Atsuya Towata, Kyuichi Yasui, Toru Tuziuti, Teruyuki Kozuka, Masahiko Tsujimoto, Ziyi Zhong, Yasuo Iida

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

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.

Original languageEnglish
Pages (from-to)213-218
Number of pages6
JournalUltrasonics Sonochemistry
Volume17
Issue number1
DOIs
StatePublished - Jan 2010
Externally publishedYes

Keywords

  • CO oxidation
  • Cavitation
  • Nano
  • Platinum
  • Sonochemical
  • Titania
  • Ultrasound

Fingerprint Dive into the research topics of 'Fabrication of nanosized Pt on rutile TiO<sub>2</sub> using a standing wave sonochemical reactor (SWSR) - observation of an enhanced catalytic oxidation of CO'. Together they form a unique fingerprint.

Cite this