Hierarchically porous composite fabrics with ultrahigh metal-organic framework loading for zero-energy-consumption heat dissipation

Xiangyu Liu; Pengli Li; Jie Chen; Pingkai Jiang; Yiu-Wing Mai; Xingyi Huang

doi:10.1016/j.scib.2022.09.014

Hierarchically porous composite fabrics with ultrahigh metal-organic framework loading for zero-energy-consumption heat dissipation

Sci Bull (Beijing). 2022 Oct 15;67(19):1991-2000. doi: 10.1016/j.scib.2022.09.014. Epub 2022 Sep 13.

Authors

Xiangyu Liu¹, Pengli Li¹, Jie Chen¹, Pingkai Jiang¹, Yiu-Wing Mai², Xingyi Huang³

Affiliations

¹ Shanghai Key Laboratory of Electrical, Insulation and Thermal Ageing, Department of Polymer Science and Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China.
² Centre for Advanced Materials Technology, School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, Sydney NSW 2006, Australia.
³ Shanghai Key Laboratory of Electrical, Insulation and Thermal Ageing, Department of Polymer Science and Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China. Electronic address: xyhuang@sjtu.edu.cn.

PMID: 36546209
DOI: 10.1016/j.scib.2022.09.014

Abstract

The long-term safe operation of high-power equipment and integrated electronic devices requires efficient thermal management, which in turn increases the energy consumption further. Hence, the sustainable development of our society needs advanced thermal management with low, even zero, energy consumption. Harvesting water from the atmosphere, followed by moisture desorption to dissipate heat, is an efficient and feasible approach for zero-energy-consumption thermal management. However, current methods are limited by the low absorbance of water, low water vapor transmission rate (WVTR) and low stability, thus resulting in low thermal management capability. In this study, we report an innovative electrospinning method to process hierarchically porous metal-organic framework (MOF) composite fabrics with high-efficiency and zero-energy-consumption thermal management. The composite fabrics are highly loaded with MOF (75 wt%) and their WVTR value can be up to 3138 g m^-2 d^-1. The composite fabrics also exhibit stable microstructure and performance. Under a conventional environment (30 ℃, 60% relative humidity), the composite fabrics adsorb water vapor for regeneration within 1.5 h to a saturated value W_sat of 0.614 g g^-1, and a corresponding equivalent enthalpy of 1705.6 J g^-1. In the thermal management tests, the composite fabrics show a strong cooling capability and significantly improve the performance of thermoelectric devices, portable storage devices and wireless chargers. These results suggest that hierarchically porous MOF composite fabrics are highly promising for thermal management of intermittent-operation electronic devices.

Keywords: Adsorption-based cooling; Electrospinning; Hierarchically porous materials; Metal–organic framework.