Thermochemical energy storage at high temperature via redox cycles of Mn and Co oxides: Pure oxides versus mixed ones
作者： Alfonso J. Carrillo , Javier Moya , Alicia Bayón , Prabhas Jana , Víctor A. de la Peña O’Shea
DOI: 10.1016/J.SOLMAT.2013.12.018
关键词:
摘要: Abstract Development of thermal energy storage (TES) systems for concentrated solar power (CSP) is essential in order to match a variable electricity demand with an intermittent source supply, enhancing generation dispatchability. The high densities and the possibility working at higher temperature ranges make thermochemical heat (TCS) via reduction–oxidation (redox) cycles metal oxides promising concept storage. For this purpose, manganese cobalt have been selected as feasible candidates due their favourable thermodynamic properties. In explore potential these materials, capacity both pure (Mn2O3 Co3O4) mixed (Mn3−xCoxO4) withstand several charge–discharge was evaluated by thermogravimetrical analysis. Results showed better cyclability low Mn content (x≥2.94) and, specially, corresponding oxides, confirming that materials may be viable option TCS.
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