Structures analyses of supported ruthenium catalysts under asymmetric hydrogenation reaction

Haruno Murayama, Yuya Ikutake, Hiroshi Nakashima, Tetsuo Honma, Makoto Tokunaga

研究成果: Contribution to journalArticle査読

抄録

Ruthenium oxide catalysts supported on various metal oxides, such as zirconia, ceria, and alumina, were prepared by an impregnation method using RuCl3·3H2O as a precursor. Local structures of the supported Ru oxide and oxidation states of Ru species were analyzed by in situ Ru K-edge X-ray absorption fine structure measurements. Small RuO2 particles were highly dispersed on zirconia and ceria. On the other hand, bulk RuO2 was deposited on alumina. Enantioselective hydrogenation of diethyl itaconate was achieved by combining the supported RuO2 catalysts with chiral ligands. The 1 wt% RuO2 supported on zirconia provided 95% ee and 99% yield. The Ru oxide was partially reduced during the reaction.

本文言語英語
論文番号108158
ジャーナルRadiation Physics and Chemistry
175
DOI
出版ステータス出版済み - 10 2020

All Science Journal Classification (ASJC) codes

  • Radiation

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