Fe-doped manganese oxide redox material for thermochemical energy storage at high-temperatures

SOLARPACES 2018: International Conference on Concentrating Solar Power and Chemical Energy Systems Pub Date : 2019-07-26 DOI:10.1063/1.5117752

N. Gokon, Aoi Nishizawa, Takehiro Yawata, Selvan Bellan, T. Kodama, Hyun-Seok Cho

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引用次数: 5

Abstract

Fe-doped manganese oxides for solar thermochemical storage are studied using thermogravimetric reactor in a laboratory scale. The operation process of Fe-doped Mn2O3/Mn3O4 redox pair for two-step thermochemical cycle are optimized from the viewpoint of redox temperatures and thermochemical storage capacity, and the impact of operation temperatures on redox performances were experimentally evaluated. In addition, the thermochemical storage potentials of some Fe-X-doped manganese oxides are examined with regards to reaction rate, short-term cycling stability, storage capacity and redox temperatures.Fe-doped manganese oxides for solar thermochemical storage are studied using thermogravimetric reactor in a laboratory scale. The operation process of Fe-doped Mn2O3/Mn3O4 redox pair for two-step thermochemical cycle are optimized from the viewpoint of redox temperatures and thermochemical storage capacity, and the impact of operation temperatures on redox performances were experimentally evaluated. In addition, the thermochemical storage potentials of some Fe-X-doped manganese oxides are examined with regards to reaction rate, short-term cycling stability, storage capacity and redox temperatures.

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用于高温热化学储能的掺铁氧化锰氧化还原材料

利用热重反应器在实验室条件下研究了用于太阳能热化学储存的掺铁锰氧化物。从氧化还原温度和热化学存储容量的角度优化了fe掺杂Mn2O3/Mn3O4氧化还原对两步热化学循环的操作工艺，并实验评价了操作温度对氧化还原性能的影响。此外，本文还从反应速率、短期循环稳定性、存储容量和氧化还原温度等方面考察了一些fe - x掺杂锰氧化物的热化学储存潜力。利用热重反应器在实验室条件下研究了用于太阳能热化学储存的掺铁锰氧化物。从氧化还原温度和热化学存储容量的角度优化了fe掺杂Mn2O3/Mn3O4氧化还原对两步热化学循环的操作工艺，并实验评价了操作温度对氧化还原性能的影响。此外，本文还从反应速率、短期循环稳定性、存储容量和氧化还原温度等方面考察了一些fe - x掺杂锰氧化物的热化学储存潜力。

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SOLARPACES 2018: International Conference on Concentrating Solar Power and Chemical Energy Systems

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