Catalytic oxidation of styrene to benzaldehyde over a copper Schiff-base/SBA-15 catalyst

A functionalized polyoxometalate solid for selective oxidation of styrene to benzaldehyde.

The reaction of [Na(12)(H(2)O)(38)][WZn{M(H(2)O)}(2)(ZnW(9)O(34))(2)].3H(2)O (M = Mn, Co) and Co(NO(3))(2).6H(2)O in water at 80 degrees C afforded red crystals of [Co(H(2)O)(6)](2){[Co(H(2)O)(4)](2)[Co(H(2)O)(5)](2)WZn[Co(H(2)O)](2)(ZnW(9)O(34))(2)}.10H(2)O (1), which has been characterized by TGA, IR, PXRD, element analysis and single crystal X-ray diffraction. The polyanion [WZn{Co(H(2)O)}(2...

Catalytic epoxidation of styrene and methyl oleate over peroxophosphotungstate entrapped in mesoporous SBA-15

Kinetics of the Catalytic Decomposition of Ammonia over a Bimetallic Copper-cerium Nanoparticle Catalyst

This study examines the kinetics of selective catalytic oxidation of ammonia to nitrogen over a bimetallic copper-cerium nanoparticle catalyst in a tubular fixed-bed reactor. Transmission electron microscopy results showed that the catalyst containing copper and cerium is well dispersed and presents in the form of nano-sized particles. The formation of CuO/CeO2 active sites was confirmed by Fou...

Role of water in the partial oxidation of propane to acrylic acid over Mo1V0.3Te0.23Nb0.12Ox catalyst

Effects of water on the catalytic performances of MoVTeNbO catalyst in the oxidation of propane to acrylic acid have been investigated at different reaction temperatures and different steam contents. Obtained results show that both catalytic performances and catalyst structure are very sensitive to the presence of water vapor in the reaction feed. Presence of water induces some structural modif...

Catalytic activity dependency on catalyst components in aerobic copper-TEMPO oxidation.

The influence of catalyst components in the copper-TEMPO (2,2,6,6-tetramethylpiperidine N-oxide) catalysed aerobic oxidation of alcohols was investigated. The type and amount of base greatly influences reactivity. The bipyridyl ligand concentration had no major influence on catalysis, but excessive amounts led to a decrease in activity for longer reaction times. The kinetic dependency for TEMPO...