Development of Highly Functionalized Catalysts Based on Structure Control of Tungstates

2014 Fiscal Year Final Research Report

• Project/Area Number: 24686091
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Partial Multi-year Fund
• Research Field: Catalyst/Resource chemical process
• Research Institution: Tokyo Institute of Technology (2013-2014); The University of Tokyo (2012)
• Principal Investigator: KAMATA Keigo 東京工業大学, 応用セラミックス研究所, 准教授 (40451801)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: タングステート / 触媒 / 酸化 / 多核錯体

Outline of Final Research Achievements

In this work, we controlled the catalytically active sites of polyoxometalates at atomic and/or molecular levels and developed highly functionalized oxidation catalysts, in which all tungsten atoms can work as active sites for selective oxidation of hydrocarbons with green oxidants such as hydrogen peroxide and molecular oxygen. The details are as follows: (i) Investigation of reaction mechanism for epoxidation of alkenes with hydrogen peroxide catalyzed by a protonated tetranuclear peroxotungstate with NMR spectroscopy, kinetics, and DFT calculations, (ii) synthesis of a novel all-inorganic mononuclear chloro oxo diperoxotungstate applicable to the high-yield synthesis of an active protonated tetranuclear peroxotungstate, and (iii) highly selective epoxidation of cycloaliphatic alkenes with aqueous hydrogen peroxide catalyzed by a phosphorus-centered tetranuclear peroxotungstate/imidazole.

Free Research Field

触媒化学