Probing cycle stability and reversibility in thermochemical energy storage - CaC₂O₄·H₂O as perfect match?

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• 作者：Christian Knoll^a ; ^b ; Danny Mü ; ller^a ; ^{danny.mueller@tuwien.ac.at} ; Werner Artner^c ; Jan M. Welch^d ; Andreas Werner^e ; Michael Harasek^b ; Peter Weinberger^a
• 关键词：Calcium oxalate monohydrate ; Full reversibility ; Cycle stability ; Water vapour concentration ; Chemical heat pump ; Thermochemical energy storage
• 刊名：Applied Energy
• 出版年：2017
• 出版时间：1 February 2017
• 年：2017
• 卷：187
• 期：Complete
• 页码：1-9
• 全文大小：3373 K
• 卷排序：187

文摘

CaC2O4·H2O dehydration is fully reversible between 25 °C and 200 °C. Isothermal cycling between hydrate and anhydrate phase can be triggered by the water vapour concentration. High reaction rates and full reversibility demonstrated over 100 cycles. Material shows no ageing effects or reactivity decrease.