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Improved catalytic performance of Pd/TiO2 in the selective hydrogenation of acetylene by using H-2-treated sol-gel TiO2

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Title: Improved catalytic performance of Pd/TiO2 in the selective hydrogenation of acetylene by using H-2-treated sol-gel TiO2
Authors: Riyapan, Sumonrat Browse this author
Boonyongmaneerat, Yuttanant Browse this author
Mekasuwandumrong, Okorn Browse this author
Yoshida, Hiroshi Browse this author
Fujita, Shin-Ichiro Browse this author
Arai, Masahiko Browse this author →KAKEN DB
Panpranot, Joongjai Browse this author
Keywords: Sol-gel TiO2
Calcination atmosphere
Acetylene hydrogenation
Pd/TiO2
Issue Date: Mar-2014
Publisher: Elsevier
Journal Title: Journal of Molecular Catalysis A-Chemical
Volume: 383
Start Page: 182
End Page: 187
Publisher DOI: 10.1016/j.molcata.2013.12.003
Abstract: The anatase nanocrystalline TiO2 samples were synthesized by a sol gel method with a thermal treatment under air and H-2 atmospheres at 350 degrees C and employed as the supports for preparation of Pd/TiO2 catalysts by impregnation and electroless deposition methods. The surface Ti3+ defects on the TiO2 significantly increased when treated under H-2, compared to air, with no changes in the average crystallite size, specific surface area, and pore structure. The CO chemisorption and IR of adsorbed CO results showed that the use of H-2-treated TiO2 resulted in higher Pd dispersion and the formation of more isolated adsorption sites, hence improving the catalytic performance in terms of both acetylene conversion and ethylene selectivity.
Type: article (author version)
URI: http://hdl.handle.net/2115/56349
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 荒井 正彦

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