Solar Thermal-Driven Cold Energy Storage Based on a Novel Graphene-Based Composite Sorbent

Wang Kedi; Fu Shikun; Gao Peng; Wu Weidong; Wang Liwei

doi:10.12465/issn.0253-4339.20250726001

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Solar Thermal-Driven Cold Energy Storage Based on a Novel Graphene-Based Composite Sorbent

更新时间：2026-01-21

- Solar Thermal-Driven Cold Energy Storage Based on a Novel Graphene-Based Composite Sorbent
- Journal of Refrigeration Pages: 1-9(2025)
- 作者机构：
  
  1.上海理工大学能源与动力工程学院上海 200093
  2. 上海交通大学制冷与低温工程研究所上海 200240
- 作者简介：
- 基金信息：
  
  the National Natural Science Foundation of China(52236004;52206017)
- DOI：10.12465/issn.0253-4339.20250726001
  CLC： TK511;TB61;TB64
- CSTR：XXXXX.XX.XXX.20250726001
- Received：26 July 2025，
  
  Revised：2025-09-28，
  
  Accepted：28 September 2025，
  
  Published Online：04 January 2026，
- 稿件说明：
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王科迪,符世鲲,高鹏等.基于新型石墨烯基复合吸附剂的太阳能热驱动蓄冷研究[J].制冷学报,

Wang Kedi,Fu Shikun,Gao Peng,et al.Solar Thermal-Driven Cold Energy Storage Based on a Novel Graphene-Based Composite Sorbent[J].Journal of Refrigeration,
王科迪,符世鲲,高鹏等.基于新型石墨烯基复合吸附剂的太阳能热驱动蓄冷研究[J].制冷学报, DOI：10.12465/issn.0253-4339.20250726001. CSTR： XXXXX.XX.XXX.20250726001.

Wang Kedi,Fu Shikun,Gao Peng,et al.Solar Thermal-Driven Cold Energy Storage Based on a Novel Graphene-Based Composite Sorbent[J].Journal of Refrigeration, DOI：10.12465/issn.0253-4339.20250726001. CSTR： XXXXX.XX.XXX.20250726001.

摘要

针对传统化学吸附剂普遍存在的结构松散、缺乏有效传热传质通道和循环稳定性差等问题，本文提出并制备了一种新型石墨烯基复合吸附剂，该吸附剂通过将氯化锶（SrCl

）嵌入三维互联的石墨烯网络中，构建了连续高效的热传导和传质通道，同时显著增强了吸附剂的循环稳定性与热质传输性能。结果表明：该复合材料在-10 ℃蒸发温度下的氨吸附容量高达0.577 g/g，为理论值的84.1%，单位质量蓄冷能力达到639.89 kJ/kg，是冰蓄冷的1.9倍。在90 ℃驱动热源温度的解吸工况下，氨解吸量达0.572 g/g。在模拟非聚光太阳能集热器热水驱动的定压解吸实验中，系统可在连续4 h稳定日照条件下完成90%以上的蓄冷过程。该新型石墨烯基复合吸附剂在储能密度及循环稳定性方面均展现出优异性能，为太阳能吸附式蓄冷系统的工程化提供坚实技术支撑。

Abstract

To address the common problems associated with traditional chemisorption sorbents， including their loose structure， lack of effective heat- and mass-transfer pathways， and poor cycling stability， this study proposes and synthesizes a novel graphene-based composite sorbent. By embedding strontium chloride （SrCl

） into a three-dimensionally interconnected graphene network， continuous and efficient channels for heat conduction and mass transfer were constructed， significantly enhancing the sorbent's cycling stability and thermophysical transfer performance. The composite sorbent achieves a high ammonia uptake， of 0.577 g/g， at an evaporation temperature of -10 ℃， reaching 84.1% of the theoretical value. The specific cold storage capacity reaches 639.89 kJ/kg， which is 1.9 times that of ice storage. Under a desorption condition driven by a 90 ℃ heat source， the ammonia desorption capacity reaches 0.572 g/g. In constant-pressure desorption experiments simulating hot water supplied by a non-concentrated solar collector， over 90% of the cold storage process was completed within 4 h of stable sunlight. The proposed graphene-based composite sorbent demonstrated excellent performance in terms of both energy storage density and cyclic stability， thus providing solid technical support for engineering applications of solar-driven adsorption cold storage systems.

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Institute of Refrigeration and Cryogenics, Shanghai Jiao Tong University

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