An integrated method coupling of heterogeneous and biological catalysis has proven effective for producing biopolymers using lignocellulosic urban solid waste as feedstock. Catalysts based on cheap earth-abundant metals, such Fe, Mg, Ca, or Zr with basic acid properties, were used in the pre-treatment step, phototrophic mixed cultures chosen step. By changing catalysts composition, reaction tem...

Transition metal carbides (TMCs) are proposed as catalysts and supports for small particles to replace expensive late transition metals heterogeneous catalysts. High-throughput screening based on density functional theory...

We report a systematic comparison of the steric properties of different stereoselective olefin polymerization catalysts using the percentage of buried volume, %V(Bur), as a molecular descriptor. For the first time, isoselective and syndioselective group 4 metallocenes are compared with group 4 isoselective phenoxy-amine and group 4 syndioselective phenoxy-imine catalysts using the same molecula...

A family of heterogeneous catalysts has been prepared by employing different strategies: firstly by direct reaction or grafting of titanium, zinc, aluminium and magnesium precursors with dehydrated SBA-15 and secondly by reaction of the metallic derivatives with a hybrid SBA-15 mesoporous material, which possesses a new covalently bonded linker based on an amino alcohol chelate ligand. These ma...