Microporous crystalline Mo–V mixed oxides for selective oxidations

Abstract

Recent developments of crystalline Mo3VOx catalysts (MoVO), a new type of oxidation catalysts for selective oxidations of ethane to ethene and of acrolein to acrylic acid, are reviewed.

The Catalytic Reduction of Carboxylic Acid Derivatives and CO2 by Metal Nanoparticles on Lewis‐Acidic Supports

“…Achieving this objective would pave a new way to realize the environmentally friendly and sustainable production of value‐added chemicals, in which the use of catalysis and the reduction of toxic reagents, stoichiometric amounts of promoters, waste, energy, and number of operational steps are important factors ,. In the current petroleum‐based production system, chemical production processes are mainly based on the catalytic oxidation of raw materials such as hydrocarbons, which reside in low oxidation states . In order to diminish the use of fossil petroleum resources and carbon dioxide (CO 2 ) emissions, alternative synthetic routes starting from renewable carbon resources are required, even though renewable carbon resources such as CO 2 and biomass derivatives such as carboxylic acids, esters, and amides exhibit high oxidation states .…”

Bio‐Acrylates Production: Recent Catalytic Advances and Perspectives of the Use of Lactic Acid and Their Derivates

“…The second step ‐ the transformation of acrolein into AA – is part of the current industrial process of AA synthesis. Molybdenum‐vanadium oxide catalysts, either bulk or supported on silica, were found to give the best results, yielding up to 96 % of AA at full acrolein conversion …”

“…Molybdenum-vanadium oxide catalysts, either bulk or supported on silica, were found to give the best results, yielding up to 96 % of AA at full acrolein conversion. [37][38][39] Another approach is the use of a double bed catalytic system, where two separate catalysts are fixed in separate layers in one reactor tube. Usually, similar types of catalysts as mentioned in the two-reactor configuration could be used, but the main challenge is the optimization and compatibility of the reaction conditions, namely feedstock composition, space velocity and reaction temperature.…”

Surfactant-assisted synthesis of Mo–V mixed oxide catalysts for upgraded one-step conversion of glycerol to acrylic acid

“…15 Mixed oxides based on molybdenum and vanadium, Mo x V y O z , are prominent catalysts to perform the one-step conversion of glycerol due to the moderate acidity and well-known oxidative potential of vanadium in these structures, conducted by the Mars-van-Krevelen mechanism. 8,16 However, the main disadvantages of these catalysts are the textural properties, like low specic areas and porosity, 8,[17][18][19] and the instability of the mixed oxide phases in the reaction conditions. 20 The solid-state reaction and/or spreading of mixed oxide phases when applied in catalytic systems under high temperatures and oxidant atmospheres can lead to a restructuration of phases 20 to form single component oxides and/or migration of active species to amorphous phase.…”