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双向光交换的norbornadiene衍生物用于太阳能储能

Liang Fei¹, Helen Hölzel², Zhihang Wang³

¹College of Textile Science and Engineering, Jiangnan University 1800 Lihu Road 214122 Wuxi China wangchaoxia@sohu.com.

Chemical science

|October 18, 2024

概括

研究人员开发了新的分子光开关,用于储存太阳能. 这些norbornadiene衍生物能够实现可逆的双向光交换,允许高效的光能从四旋风释放回norbornadiene.

科学领域:

材料科学材料科学材料科学
摄影化学的使用.
可再生能源可再生能源是可再生能源.

背景情况:

分子光开关,特别是norbornadiene (NBD) 衍生物,用于分子太阳能热能存储 (MOST).
目前基于NBD的MOST系统的主要局限性是缺少可逆双向光交换能力,这阻碍了从四旋风 (QC) 状态有效释放能量.
现有的QC转换为NBD的方法通常依赖于热或催化过程,这些过程效率和可控性较低.

研究的目的:

设计和合成能够进行可逆双向光交换的新型NBD衍生品.
为了在MOST系统中对能量释放过程进行光学控制.
提高基于NBD的太阳能储能系统的效率和适用性.

主要方法:

合成NBD衍生品,包括接受器和供体单位.
光异构化研究将NBD转换为QC,反之亦然.
对前向 (NBD到QC) 和后向 (QC到NBD) 反应进行光转换产量测量.
确定储能密度的方法.
在流量和薄膜格式的光学控制的双向光交换装置的制造和测试.

主要成果:

成功设计和合成表现出双向光交换的NBD衍生品.
实现了高的光转换产量:高达99%的NBD到QC和82%的QC到NBD.
证明了高达312 Jg-1的显著能量储存密度.
首次演示光学控制的双向光交换装置,在溶液 (流) 和固态 (薄膜) 配置中.

结论:

开发的NBD衍生品通过实现可逆光能释放,克服了基于NBD的传统MOST系统的局限性.
高效的双向光交换和高储能密度为太阳能储能技术带来了有前途的进步.
展示的设备突显了在各种环境中快速和强大的能量释放应用的潜力,为实际的MOST应用铺平了道路.

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