热的
材料科学
热能
储能
太阳能
热能储存
航程(航空)
化学能
光电子学
阳光
数码产品
纳米技术
化学物理
光学
化学
热力学
复合材料
物理
有机化学
电气工程
物理化学
功率(物理)
工程类
作者
Zhichun Shangguan,Wen-Jin Sun,Zhaoyang Zhang,Dong Fang,Zhihang Wang,Si Wu,Chao Deng,Xianhui Huang,Yixin He,Rui Wang,Tingxian Li,Kasper Moth-Poulsen,Tao Li
出处
期刊:Chemical Science
[The Royal Society of Chemistry]
日期:2022-01-01
卷期号:13 (23): 6950-6958
被引量:8
摘要
An optimal temperature is crucial for a broad range of applications, from chemical transformations, electronics, and human comfort, to energy production and our whole planet. Photochemical molecular thermal energy storage systems coupled with phase change behavior (MOST-PCMs) offer unique opportunities to capture energy and regulate temperature. Here, we demonstrate how a series of visible-light-responsive azopyrazoles couple MOST and PCMs to provide energy capture and release below 0 °C. The system is charged by blue light at -1 °C, and discharges energy in the form of heat under green light irradiation. High energy density (0.25 MJ kg-1) is realized through co-harvesting visible-light energy and thermal energy from the environment through phase transitions. Coatings on glass with photo-controlled transparency are prepared as a demonstration of thermal regulation. The temperature difference between the coatings and the ice cold surroundings is up to 22.7 °C during the discharging process. This study illustrates molecular design principles that pave the way for MOST-PCMs that can store natural sunlight energy and ambient heat over a wide temperature range.
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