作者: Ken-ichi Shimizu , Takumi Yamamoto , Yutaka Tai , Kazu Okumura , Atsushi Satsuma
DOI: 10.1016/J.APCATA.2011.04.029
关键词: Catalysis 、 Alkene 、 Acetylacetone 、 Addition reaction 、 Gold cluster 、 Oxidation state 、 Chemistry 、 Inorganic chemistry 、 Brønsted–Lowry acid–base theory 、 Zeolite 、 Polymer chemistry
摘要: Abstract HY zeolite-supported Au clusters (Au 0 HY) prepared by deposition–precipitation method, well characterized XANES, EXAFS, and NH 3 - acetyl acetone-adsorption IR, were tested for addition of acetone to alkenes. showed higher selectivity the product than Au(OH) supported on 4 + -exchanged Y zeolite, Al 2 O , MgO, SiO TiO . Studies effect oxidation state, cluster size Bronsted acidity zeolite catalytic that co-presence metallic with smaller acidic OH groups was necessary selective formation product. Cooperation mechanism acid sites is proposed.