Electrochemical Reduction of CO 2 with Transition Metal Phthalocyanine and Porphyrin Complexes Supported on Activated Carbon Fibers

摘要: Porphyrin and phthalocyanine transition metal complexes adsorbed on activated carbon fiber nanoporous supports are shown to be effective catalysts for CO 2 electroreduction in the form of gas diffusion electrodes, yielding monoxide with current efficiencies up ca. 70%. A comparison efficiency a wide pore size distribution, fibers, slit-shaped pores nm width, demonstrates that an increase catalyst dimensions results decrease benefit so-called nanospace effect. For bulky molecules, e.g., tetra-tert-butyl-substituted phthalocyanines, more effective, as high 85% production being achieved.