质子合电子转移辅助热电能转换和储存
Yang Wang1,2, Yongqiang Dai1, Longbin Li1
1Guangdong Provincial Key Laboratory of industrial surfactant and Flexible Sensing Technology Research Center, Institute of Chemical Engineering, Guangdong Academy of Sciences, No 318, Chebeixi Road, Guangzhou, 510665, China.
Angewandte Chemie (International ed. in English)
|July 8, 2023
概括
这项研究通过使用水凝中的质子索雷特效应和质子合电子转移 (PCET) 来增强低级热的热电转换. 这种方法提高了效率,并使储能成为可能,解决了可持续热电发电的关键挑战.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 能源转换 能源转换
背景情况:
- 低级热量丰富,但使用传统热电材料高效转换是具有挑战性的.
- 离子导体通常在热电应用中受到低效率和不良可持续性的影响.
- 开发可持续和高效的热电转换方法对于废热回收至关重要.
研究的目的:
- 通过将质子的索雷特效应与质子合电子转移 (PCET) 反应相结合来增强热电性能.
- 调查水凝作为有效的热电能转换媒介的潜力.
- 探索将储能能力整合到热电设备中的可能性.
主要方法:
- 使用了含有本佐基和基氧化还原对的水凝.
- 利用质子的索雷特效应来驱动热电转换.
- 集成质子合电子转移 (PCET) 反应以增强电荷传输.
- 描述了热电性质,包括热力,功率因子和功率数字.
主要成果:
- 在热功率 (25.9 mV K-1),功率系数 (5 mW m-1 K-2) 和功率图 (>2.4) 中取得了显著的改进.
- 通过Soret效应和PCET的结合,证明了连续的功率输出.
- 展示了储能能力,在去除温度梯度后3个多小时内保持电力输出率为27.7% (14mW m-2).
结论:
- 水凝中质子索雷特效应和PCET的协同作用组合为高效的低级热热电转换提供了一个有希望的途径.
- 开发的系统表现出改进的热电性能和集成的能量存储,提高了可持续性.
- 这种方法为新的,可持续的热电发电机和能量收集设备铺平了道路.
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