Highly Active Layered Titanosilicate Catalyst with High Surface Density of Isolated Titanium on the Accessible Interlayer Surface

0490695 - ÚFCH JH 2019 RIV DE eng J - Journal Article
Tsunoji, N. - Opanasenko, Maksym - Kubů, Martin - Čejka, Jiří - Nishida, H. - Hayakawa, S. - Ide, Y. - Sadakane, M. - Sano, T.
Highly Active Layered Titanosilicate Catalyst with High Surface Density of Isolated Titanium on the Accessible Interlayer Surface.
ChemCatChem. Roč. 10, č. 12 (2018), s. 2536-2540. ISSN 1867-3880. E-ISSN 1867-3899
R&D Projects: GA ČR GBP106/12/G015
Institutional support: RVO:61388955
Keywords : Epoxidation * Layered compounds * Oxidation * Silicates * Titanium
OECD category: Physical chemistry
Impact factor: 4.495, year: 2018

Metallosilicate catalysts with tetrahedrally coordinated transition metals are attractive because of their high selectivity in the oxidation of hydrocarbons. Here, we report highly active titanosilicate catalysts featuring an isolated titanium species with a uniform tetrahedral coordination state, unusually high surface density, and high accessibility of the Ti active sites. The layered titanosilicate prepared by grafting of TiIVacetylacetonate onto the surfaces of the crystalline layered silicate, HUS-7, showed excellent catalytic performance in the epoxidation of cyclohexene with tert-butyl hydroperoxide as an oxidant (turnover frequency of 230h-1and reaction rate of 314mmolg-1h-1).
Permanent Link: http://hdl.handle.net/11104/0284865