CO2 utilization for the production of valuable chemical products may help mitigate two global problems: increasing CO2 concentration in the atmosphere and depleting petroleum resources. Solar thermochemical cycles for CO2 splitting provide relatively high efficiencies of solar energy conversion while operating at realistic temperatures. In the present paper, the cycles proposed previously are reviewed and a novel cycle, based on SnO2/SnO redox reactions, is proposed. The results of thermodynamic calculations for the CO2 reduction step in this cycle are reported.
Photo-thermochemical Cycle for CO2 Reduction based on Effective Ni ion Substitute-doped TiO2
