Applications of high power micro wave catalysis in chemistry

Pulsed activation in heterogeneous catalysis

“…In the early 1990s, the group of Wan and coworkers at Queens University in Canada worked on the application of bursts of microwave energy to catalytic systems [139,140,141,34,142]. To realize this they used catalytic particles (metal) which are sensitive to microwave radiation.…”

Microwaves in Heterogeneous Gas‐Phase Catalysis: Experimental and Numerical Approaches

“…The group of Wan also reported on other microwave-assisted catalytic reactions including decomposition of olefins [39], decomposition of organic halides over alumina-supported iron oxide catalyst [40], synthesis of cyanide [41], synthesis of methane from carbon dioxide and water over nickel catalyst [42,43], methane decomposition to C 2 and C 3 hydrocarbons [44][45][46], production of acetylene via the reactions of carbon and water [42,47] or oxidation of hydrocarbons by water [42,45]. However, lack of information about the applied temperature measurement techniques and the fact that the results in the microwave system were compared only with literature data create difficulties in evaluation of the obtained results.…”

“…Higher selectivity Non-uniform temperature conditions [38] No comparison with conventional process n/a [44][45][46] Higher conversion No explanation [74,75] Higher conversion, higher selectivity Plasma formation, arcing [56] Methane oxidation…”

“…The first study was published by Tse [45] in 1990. The reaction was performed in a microwave pulsed reactor with a Ni-based catalyst.…”

Microwave-assisted synthesis and evaluation of anti-inflammatory activity of new series of N-substituted 2-butyl-5-chloro-3H-imidazole-4-carbaldehyde derivatives

“…Microwave radiation provides an alternative to conventional heating as it utilizes the ability of liquids or solids to transform electromagnetic energy into heat. The microwave technology has been applied to a number of useful research and development projects in drug release/ targeting (Miyazaki et al, 1989), polymer technology (Gourdenne et al, 1979), ceramics (Dagani, 1988), alkane decomposition (Tse et al,1990), etc. Herein we report the microwave-assisted synthesis, characterization, and anti-inflammatory activity of some novel N-substituted 2-butyl-5-chloro-3H-imidazole-4-carbaldehyde derivatives bearing potentially bioactive groups.…”