Enhanced Catalytic Activity of Cobalt Porphyrin in CO2 Electroreduction upon Immobilization on Carbon Materials

• DOI: 10.1002/anie.201701104
• Publication Date: 2017-05-03T11:42:45Z
• Authors: Xin‐Ming Hu; Magnus H. Rønne; Steen U. Pedersen; Troels Skrydstrup; Kim Daasbjerg
• Keywords: Carbon fibers

In a comparative study of the electrocatalytic CO2 reduction, cobalt meso-tetraphenylporphyrin (CoTPP) is used as model molecular catalyst under both homogeneous and heterogeneous conditions. former case, employing N,N-dimethylformamide solvent, CoTPP performs poorly an electrocatalyst giving low product selectivity in slow reaction at high overpotential. However, upon straightforward immobilization onto carbon nanotubes, remarkable enhancement abilities seen with becoming selectively reduced to CO (>90 %) overpotential aqueous medium. This effect ascribed particular environment created by medium catalytic site immobilized that facilitates adsorption further . work highlights significance assessing from more than measurements alone.