Discovery of Rapid and Reversible Water Insertion in Rare Earth Sulfates: A New Process for Thermochemical Heat Storage
Discovery of Rapid and Reversible Water Insertion in Rare Earth Sulfates: A New Process for Thermochemical Heat Storage
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DOI：
10.1002/adma.201606569
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发表时间：
2017-07-26
影响因子：
29.4
通讯作者：
Uda, Tetsuya
中科院分区：
文献类型：
--
作者：
Hatada, Naoyuki;Shizume, Kunihiko;Uda, Tetsuya
基于化学反应的热能储存是一种通过储存和利用余热来减少化石燃料消耗的有前景的技术。对于广泛的应用，一个关键的挑战是确定在250摄氏度以下发生的适当的可逆反应，其中可能有丰富的低品位废热和太阳能。这里，显示了硫酸镧一水合物La-2（SO 4）（3）中心点H2O在加热/冷却时在50至250 ℃的温度范围内经历快速和可逆的脱水/水合反应，具有非常小的热滞后（
Thermal energy storage based on chemical reactions is a prospective technology for the reduction of fossil-fuel consumption by storing and using waste heat. For widespread application, a critical challenge is to identify appropriate reversible reactions that occur below 250 degrees C, where abundant low-grade waste heat and solar energy might be available. Here, it is shown that lanthanum sulfate monohydrate La-2(SO4)(3)center dot H2O undergoes rapid and reversible dehydration/hydration reactions in the temperature range from 50 to 250 degrees C upon heating/cooling with remarkably small thermal hysteresis (