L. de Oliveira

TL;DR: In this article, a rotary kiln was set-up and operated in the solar furnace of DLR for thermal reduction and oxidation of cobalt oxide, with 30 cycles performed with one batch showing no evident degradation of the material.

TL;DR: In this paper, the authors describe the realisation and successful test operation of a 100kW pilot plant for two-step solar thermo-chemical water splitting on a solar tower at the Plataforma Solar de Almeria, which aims at the demonstration of the feasibility of the process on the solar tower platform under real conditions.

TL;DR: In this paper, the development of thermochemical storage systems based on such oxide-based redox materials and in particular on cobalt oxide was discussed, where two reactor concepts for the coupling of solar energy to the redox reactions have been implemented and tested.

TL;DR: In this paper, a pilot-scale redox-based thermochemical storage system has been set up and operated under near-realistic conditions inside a solar power tower plant, where the storage unit is made of inert honeycomb supports (cordierite) coated with 88 kg of redox active material (cobalt oxide).

TL;DR: New physical insight is offered into the redox properties of ceria based materials, and the theoretical methods developed should also be of great interest for other materials which exhibit continuous oxygen non-stoichiometry similar to ceria, such as perovskite oxides.