When the oxygen permeable membrane is incorporated with concentration solar power, this process can be identified as solar-fuel process. The heat input is solar heat, while the output is fuel, i.e. pure H2 or a mixture of CO and H2.
This solar-fuel process is a favorable storage method to deal with the intermittent solar energy. Storing the solar energy in a form of chemical bonds, i.e. fuels can be more efficient and can make good use of the existing infrastructures.
Publications on this topic:
1. X.Y. Wu and A.F. Ghoniem, “Mixed ionic-electronic conductive (MIEC) membrane for thermochemical reduction of CO2: A review“, Progress in Energy and Combustion Science, 74 2019 1 – 30 FULLTEXT