The long-term safe operation of high-power equipment and integrated electronic devices requires effi-cient thermal management,which in turn increases the energy consumption further.Hence,the sustain-able 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,cur-rent 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 fab-rics 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 fab-rics 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 Wsat of 0.614 g g-1,and a corresponding equivalent enthalpy of 1705.6 J g-1.In the thermal man-agement tests,the composite fabrics show a strong cooling capability and significantly improve the per-formance 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.

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

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;Centre for Advanced Materials Technology,School of Aerospace,Mechanical and Mechatronic Engineering,The University of Sydney,Sydney NSW 2006,Australia

科学通报（英文版）

[1]Xiangyu Liu;Pengli Li;Jie Chen;Pingkai Jiang;Yiu-Wing Mai;Xingyi Huang-.Hierarchically porous composite fabrics with ultrahigh metal-organic framework loading for zero-energy-consumption heat dissipation)[J].科学通报（英文版）,2022(19):1991-2000

Wsat

Hierarchically,porous,composite,fabrics,ultrahigh,metal,organic,framework,loading,zero,energy,consumption,heat,dissipation,long,safe,operation,power,equipment,integrated,electronic,devices,requires,thermal,management,which,turn,increases,further,Hence,sustain,development,our,society,needs,advanced,even,Harvesting,water,from,atmosphere,followed,by,moisture,desorption,dissipate,efficient,feasible,approach,However,cur,rent,methods,are,limited,absorbance,vapor,transmission,WVTR,stability,thus,resulting,capability,In,this,study,report,innovative,electrospinning,process,hierarchically,MOF,efficiency,highly,loaded,wt,their,value,be,up,also,exhibit,stable,microstructure,performance,Under,conventional,environment,relative,humidity,adsorb,regeneration,within,saturated,corresponding,equivalent,enthalpy,tests,show,strong,cooling,significantly,improve,thermoelectric,portable,storage,wireless,chargers,These,results,suggest,that,promising,intermittent

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