Chem. J. Chinese Universities ›› 2023, Vol. 44 ›› Issue (11): 20230256.doi: 10.7503/cjcu20230256

• Organic Chemistry • Previous Articles     Next Articles

Preparation and Properties of a Flexible Photothermal Conversion Device of Azobenzene-based with Photoinduced Phase Transition Type

MIAO Guimei1, CHEN Longxuan1, GONG Piwen1, HAN Jishu2, ZHAO Ruiyang1(), LIU Fusheng1   

  1. 1.School of Chemical Engineering
    2.College of Chemistry and Molecular Engineering,Qingdao University of Science and Technology,Qingdao 266042,China
  • Received:2023-05-29 Online:2023-11-10 Published:2023-07-04
  • Contact: ZHAO Ruiyang E-mail:zhaoruiyang1985@163.com
  • Supported by:
    the Open Project of State Key Laboratory of Supramolecular Structure and Materials, Jilin University, China(sklssm2023037)

Abstract:

A new kind of azobenzene derivative 1-[4-(allyloxy)phenyl]-2-(p-tolyl)diazenyl(AD-Azo) with room temperature photo-induced solid-liquid transition performance was designed and synthesized for solar thermal fuels(STFs) applications. At the same time, the energy storage density of the azobenzene derivative was greatly improved due to the latent heat of phase transition during solid-liquid conversion. Under light or heat induction, AD-Azo was combined with ordinary commercial fabric to prepare an environmentally friendly, ready-to-use flexible STF device. Moreover, there is a supramolecular interaction(hydrogen bond) between molecules in the fabric, which enhances the energy storage density and energy storage life. The total energy storage density of the STF device is as high as 199.12 J/g, and the energy storage half-life is 50 h. In addition, this flexible AD-Azo STF device possesses good flexibility, solvent stability and recyclability, which has potential application prospects in environment-friendly STFs.

Key words: Solar thermal fuel, Azobenzene derivative, Solar-thermal conversion, Photo-induced phase transition, Flexible device

CLC Number: 

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