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Improved catalytic performance of Pd/TiO2 in the selective hydrogenation of acetylene by using H-2-treated sol-gel TiO2
| 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)
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Submitter: 荒井 正彦
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