Harvesting solar energy with a Ni-MOF-based evaporator for efficient solar thermal storage and steam generation

You Xu; Zhengyun Wang; Xianbao Wang; Zhenzhen Guo; Muhammad Sultan Irshad; Naila Arshad; Jiang Gong; Hongfang Liu; Guangfang Li

doi:10.1039/D4TA00203B

Harvesting solar energy with a Ni-MOF-based evaporator for efficient solar thermal storage and steam generation†

You Xu,

^a Zhengyun Wang,^a Xianbao Wang,

^b Zhenzhen Guo,

^b Muhammad Sultan Irshad,

^b Naila Arshad,

^bc Jiang Gong,

*^a Hongfang Liu

*^a and Guangfang Li

*^a

Author affiliations

* Corresponding authors

^a Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education), Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, Wuhan 430074, P.R. China
E-mail: guangFL@hust.edu.cn, gongjiang@hust.edu.cn, liuhf@hust.edu.cn

^b Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials (Hubei University), Collaborative Innovation Center for Advanced Organic Chemical Materials Co-Constructed By the Province and Ministry, School of Materials Science and Engineering, Hubei University, Wuhan 430062, P.R. China

^c Collaborative Innovation Centre for Optoelectronic Science & Technology, International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, P.R. China

Abstract

Harvesting solar energy for efficient photothermal conversion and steam generation over solar evaporators is particularly significant in the context of comprehensive solar utilization toward solving the global shortage of fresh water. Herein, a flexible Ni-based metal–organic framework composite (NMC) with hierarchical structures is constructed as a photothermal material for solar steam-generation devices. Besides, a phase change material (PCM)-based thermal storage pack is incorporated into the solar evaporator to overcome the solar radiation intermittency. By virtue of the synergistic effect of the promising 3D structure and excellent water transport, the NMC-PCM evaporator possesses an outstanding evaporation performance (2.55 kg m⁻² h⁻¹) under 1 sun irradiation. More strikingly, owing to the enhanced light-to-heat performance as well as large heat storage capacity, the proposed evaporator achieves a high water-evaporation rate of 1.46 kg m⁻² h⁻¹ without sunlight irradiation. This work opens up opportunities to realize excellent energy capture for solar-driven clean water production and solar thermal storage not only under sunlight incidence but also in no light environment.

Journal of Materials Chemistry A

Harvesting solar energy with a Ni-MOF-based evaporator for efficient solar thermal storage and steam generation†

Abstract

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