Efficient Reduction of CO2 to CO Using Cobalt-Cobalt Oxide Core-Shell Catalysts.

摘要: The route of converting CO2 to CO by reverse water-gas shift (RWGS) reaction is particular interest due the direct use as feedstock in many significant industrial processes. Here, an engineered cobalt-cobalt oxide core-shell catalyst (Co@CoO) with nanochains structure has been made for efficient reduction useful CO. Owing excellent performance H2 activation metal nanoparticles and enhanced absorption molecule defective oxides, unique synergistic effect metallic Co encapsulating coordinatively unsaturated CoO species shows high clean generation under moderate practical conditions. Furthermore, N-dopant into shell, Co@CoO-N achieves highest conversion 19.2 % exceptional evolution rate 96 mL min-1  gcat-1 at 523 K a gas hourly space velocity (GHSV) 42,000 mL gcat-1  h-1 , which comparable previously reported materials identical