SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2022, Vol. 41 ›› Issue (1): 497-506.DOI: 10.1016/j.cjche.2021.09.017

• Materials and Product Engineering • 上一篇    

Reduced graphene oxide modified melamine sponges filling with paraffin for efficient solar-thermal conversion and heat management

Lu-Yue Liu1, Zhuang Liu1,2, Han-Yu Peng1, Xiao-Ting Mu1, Qian Zhao1, Xiao-Jie Ju1,2, Wei Wang1,2, Rui Xie1,2, Liang-Yin Chu1,2   

  1. 1 School of Chemical Engineering, Sichuan University, Chengdu 610065, China;
    2 State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
  • 收稿日期:2021-05-17 修回日期:2021-09-27 出版日期:2022-01-28 发布日期:2022-02-25
  • 通讯作者: Zhuang Liu,E-mail address:liuz@scu.edu.cn;Liang-Yin Chu,E-mail address:chuly@scu.edu.cn
  • 基金资助:
    The authors gratefully acknowledge support from the National Natural Science Foundation of China (22022810), the Program for Changjiang Scholars and Innovative Research Team in University (IRT15R48) and Sichuan University (2020SCUNG112).

Reduced graphene oxide modified melamine sponges filling with paraffin for efficient solar-thermal conversion and heat management

Lu-Yue Liu1, Zhuang Liu1,2, Han-Yu Peng1, Xiao-Ting Mu1, Qian Zhao1, Xiao-Jie Ju1,2, Wei Wang1,2, Rui Xie1,2, Liang-Yin Chu1,2   

  1. 1 School of Chemical Engineering, Sichuan University, Chengdu 610065, China;
    2 State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
  • Received:2021-05-17 Revised:2021-09-27 Online:2022-01-28 Published:2022-02-25
  • Contact: Zhuang Liu,E-mail address:liuz@scu.edu.cn;Liang-Yin Chu,E-mail address:chuly@scu.edu.cn
  • Supported by:
    The authors gratefully acknowledge support from the National Natural Science Foundation of China (22022810), the Program for Changjiang Scholars and Innovative Research Team in University (IRT15R48) and Sichuan University (2020SCUNG112).

摘要: A novel type of reduced graphene oxide (rGO) modified melamine sponges (rGS) filling with paraffin (rGS-pf) is developed for efficient solar-thermal conversion and heat management. The microstructures, filling and holding capacity of paraffin in porous rGS, solar-thermal energy conversion and energy harvesting efficiency of the prepared rGS-pf have been investigated systematically. The content of rGO nanosheets coated on the skeletons of rGS-pf is only 0.11%, while the loading content of paraffin in the rGS-pf is as high as 97.53%. Based on the solar-thermal conversion property of rGO nanosheets in the rGS-pf and the heat storage ability of paraffin in the rGS-pf, the proposed rGS-pf provides excellent performance for heat management. The efficiency of solar-thermal conversion could reach up to 92.5%. The thermo-regulation provided by the proposed rGS-pf is real-time, repeatable and long-term stable. The results in this study provide valuable guidance for developing functional materials for efficient solarthermal conversion and heat management.

关键词: Reduced graphene oxide sponges, Thermo-regulation, Phase change, Solar-thermal conversion, Heat management

Abstract: A novel type of reduced graphene oxide (rGO) modified melamine sponges (rGS) filling with paraffin (rGS-pf) is developed for efficient solar-thermal conversion and heat management. The microstructures, filling and holding capacity of paraffin in porous rGS, solar-thermal energy conversion and energy harvesting efficiency of the prepared rGS-pf have been investigated systematically. The content of rGO nanosheets coated on the skeletons of rGS-pf is only 0.11%, while the loading content of paraffin in the rGS-pf is as high as 97.53%. Based on the solar-thermal conversion property of rGO nanosheets in the rGS-pf and the heat storage ability of paraffin in the rGS-pf, the proposed rGS-pf provides excellent performance for heat management. The efficiency of solar-thermal conversion could reach up to 92.5%. The thermo-regulation provided by the proposed rGS-pf is real-time, repeatable and long-term stable. The results in this study provide valuable guidance for developing functional materials for efficient solarthermal conversion and heat management.

Key words: Reduced graphene oxide sponges, Thermo-regulation, Phase change, Solar-thermal conversion, Heat management