Effects of titania coatings on hydrodesulfurization catalysts: Insights from first-principles calculations

Hiroki Iriguchi*, Hiroki Uratani, Takao Kudo, Hiroyuki Seki, Koichi Yamashitat

*この研究の対応する著者

研究成果: Paper査読

抄録

To establish guidelines for the development of high activity hydrodesulfurization catalysts, first-principles calculations were carried out with Al2O3 as the catalyst support and MoS2 as the supported metal species, focusing on the TiCh coating and support-metal interaction. MoS2 clusters were modeled on the surfaces of Al2O3 and Tio2 and the adsorption energy was calculated. TiCh showed stronger interaction with MoS2 than Al2O3. MoS2 clusters were also modeled on Al2O3 supports coated with thin films of TiCh, and the adsorption energy was calculated. Adsorption energy depended on the number of stacked film layers, suggesting that thin film thickness can be optimized. An amorphous Al2O3 support model was created to approach the real surface state and adsorption calculations were performed. The adsorption energy was higher than with a crystalline support, and the presence of sites where more stable adsorption would occur was confirmed [1].

本文言語English
ページ21-29
ページ数9
出版ステータスPublished - 2019
外部発表はい
イベント29th Annual Saudi-Japan Symposium on Technology in Petroleum Refining and Petrochemicals - Dhahran, Saudi Arabia
継続期間: 2019 11 32019 11 4

Conference

Conference29th Annual Saudi-Japan Symposium on Technology in Petroleum Refining and Petrochemicals
国/地域Saudi Arabia
CityDhahran
Period19/11/319/11/4

ASJC Scopus subject areas

  • 燃料技術
  • エネルギー工学および電力技術
  • 地盤工学および土木地質学
  • 地球化学および岩石学

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