Abstract: Thermochemical multistep water- and CO2-splitting processes are promising options to face future energy problems. Particularly, the possible incorporation of solar power makes these processes sustainable and environmentally attractive since only water, CO2 and solar power are used; the concentrated solar energy is converted into storable and transportable fuels. One of the major barriers to technological success is the identification of suitable active materials like catalysts and redox materials exhibiting satisfactory durability, reactivity and efficiencies. Moreover, materials play an important role in the construction of key components and for the implementation in commercial solar plants. The most promising thermochemical water- and CO2-splitting processes are being described and discussed with respect to further development and future potential. The main materials-related challenges of those processes are being analyzed. Technical approaches and development progress in terms of solving them are addressed and assessed in this review.
Keywords: water splitting; CO2- splitting; thermochemical cycle; redox material; sulfur cycle; solar power; CO; solar fuels; hydrogen
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Roeb, M.; Neises, M.; Monnerie, N.; Call, F.; Simon, H.; Sattler, C.; Schmücker, M.; Pitz-Paal, R. Materials-Related Aspects of Thermochemical Water and Carbon Dioxide Splitting: A Review. Materials 2012, 5, 2015-2054.
Roeb M, Neises M, Monnerie N, Call F, Simon H, Sattler C, Schmücker M, Pitz-Paal R. Materials-Related Aspects of Thermochemical Water and Carbon Dioxide Splitting: A Review. Materials. 2012; 5(11):2015-2054.
Roeb, Martin; Neises, Martina; Monnerie, Nathalie; Call, Friedemann; Simon, Heike; Sattler, Christian; Schmücker, Martin; Pitz-Paal, Robert. 2012. "Materials-Related Aspects of Thermochemical Water and Carbon Dioxide Splitting: A Review." Materials 5, no. 11: 2015-2054.