Catalyst-assisted chemical looping for CO2 conversion to CO

Catalyst-assisted chemical looping for CO2 conversion to CO

Type	Journal Article
Author	Vladimir V. Galvita
Author	Hilde Poelman
URL	http://www.sciencedirect.com/science/article/pii/S0926337314005347
Volume	164
Pages	184-191
Publication	Applied Catalysis B: Environmental
Date	March 2015
Abstract	Researchers prepared a bifunctional 5% Ni/CeO2–Fe2O3 (1:1) sample for the transformation of CO2 to CO by catalyst-assisted chemical looping. They studied generation of CO from CO2 through CH4 + CO2/CO2 redox cycles between 873 K and 973 K. In the reduction step, CH4 + CO2 was converted over Ni into syngas, which then reduced the CeO2–Fe2O3 oxygen storage material, yielding CO2 and H2O. CO was produced upon re-oxidation of the oxygen storage material by CO2. The addition of Ni to CeO2–Fe2O3 had a beneficial effect on the activity of the material during periodic cycling.