压力循环水中的光子能量储存:新兴的分子太阳能热能储存化合物
Qianfeng Qiu1, Sirun Yang2, Mihael A Gerkman1
1Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts 02453, United States.
Journal of the American Chemical Society
|July 8, 2022
概括
研究人员开发了用于储存太阳能的新型水分子. 循环水经历光诱导的异构化和相变,使其能够与阿佐衍生物相似地储存大量的能量.
科学领域:
- 摄影化学
- 材料科学
- 可再生能源
背景情况:
- 水光开关的Z和E异构体之间的小吉布斯自由能量差异限制了它们在能量储存中的使用.
- 现有的光开关往往没有足够的储能容量来实现实际应用.
研究的目的:
- 设计和合成新的循环和非循环,以提高E异构体的稳定性.
- 研究这些水的分子太阳能热能储存潜力.
主要方法:
- 一系列循环和非循环的合成.
- 分析Z/E异构体转换的光诱导异构化研究.
- 差分扫描热量计和其他热分析技术用于研究相位过渡.
主要成果:
- 经过控制环应变的循环水显示出E异构体的稳定性增加.
- 在循环中,光诱导的异构化引发了从晶体到液体的相位过渡.
- 这一过程允许大量的能量储存,与已知的亚博衍生物相提并论.
结论:
- 宏观光色设计与相变相结合是分子太阳能热能存储的可行策略.
- 开发的水系统对有效的太阳能捕获和释放有很大的希望.
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