@article{oai:muroran-it.repo.nii.ac.jp:00006676,
 author = {KANDA,  Yasuharu and 神田, 康晴 and OOKA, Yasunobu and 大岡, 康伸 and 小林, 隆夫 and KOBAYASHI, Takao and UEMICHI,  Yoshio and 上道, 芳夫 and 杉岡,  正敏 and SUGIOKA, Masatoshi},
 issue = {1},
 journal = {Journal of the Japan Petroleum Institute},
 month = {Mar},
 note = {application/pdf, Hydrodesulfurization (HDS) of thiophene over silica-modified alumina-supported platinum (Pt/SiO_2-Al_2O_3) catalysts was examined. The HDS activity of a Pt/Al_2O_3 catalyst was enhanced by silica modification. However, the optimal silica loading for HDS activity could not be identified. The dispersion of platinum on alumina, as measured by the hydrogen adsorption method, was enhanced by silica modification and the optimal silica loading for platinum dispersion was 10 to 40 wt%. The acidity of SiO_2-Al_2O_3 was evaluated by 2-propanol dehydration (200°C) and cumene cracking (400°C). The optimal silica loading for the acidity of SiO_2-Al_2O_3 was 90 wt%. Furthermore, the presence of Brönsted acid sites on SiO_2-Al_2O_3 was confirmed by a pyridine adsorption method with FT-IR spectroscopy. The high HDS activity of the Pt/SiO_2-Al_2O_3 catalyst is caused by both high Pt dispersion and formation of Brönsted acid sites.},
 pages = {61--64},
 title = {Catalytic Activities of Platinum Supported on Silica-modified Alumina for Hydrodesulfurization of Thiophene},
 volume = {50},
 year = {2007},
 yomi = {カンダ, ヤスハル and オオオカ, ヤスノブ and コバヤシ, タカオ and ウエミチ, ヨシオ and スギオカ, マサトシ}
}