Platinum nanoparticles supported on Ca(Mg)-zeolites for efficient room-temperature alcohol oxidation under aqueous
Yejiang Hong1, Xiaoqing Yan, Xiaofeng Liao
1Key Lab of Applied Chemistry of Zhejiang Province, Department of Chemistry, Zhejiang University, Hangzhou, China. jfan@zju.edu.cn.
Abstract:
Platinum nanoparticles supported on Ca(Mg)-ZSM-5 is an efficient, highly selective and stable catalyst for room-temperature oxidation of alcohols in water. Based on in situ EPR measurement and the radical trapping technique, we propose that the generation of ˙OH radicals by cleavage of the O-O bond in the H2O2 intermediate is the rate determining step, which participated in the abstraction of H from the α-C-H bond of alcohol molecules to produce aldehydes/ketones.
Related Concept Videos
Radical Oxidation of Allylic and Benzylic Alcohols
Oxidation of Alcohols
The process of oxidation in a chemical reaction is observed in any of the three forms:
Preparation of Alcohols via Addition Reactions
The acid-catalyzed addition of water to the double bond of alkenes is a large-scale industrial method used to synthesize low-molecular-weight alcohols. An acidic atmosphere is required to allow the hydrogen in the water molecule to act as an electrophile and attack the double bond in an alkene. The addition of a proton to the double bond creates a carbocation intermediate. The proton preferentially bonds to the less substituted end of the double bond to create a more stable carbocation...
Oxidation of Alkenes: Syn Dihydroxylation with Potassium Permanganate
Oxidation of Alkenes: Syn Dihydroxylation with Osmium Tetraoxide


