Photoelectric dual-mode triggered phase change materials for all-weather personal thermal management and shape memory

Yang Li; Peicheng Li; Han Yu; Xuemei Diao; Panpan Liu; Zhiyong Zhao; Xiao Chen

doi:10.1016/j.jcis.2024.03.020

Photoelectric dual-mode triggered phase change materials for all-weather personal thermal management and shape memory

J Colloid Interface Sci. 2024 Jul:665:1007-1016. doi: 10.1016/j.jcis.2024.03.020. Epub 2024 Mar 5.

Authors

Yang Li¹, Peicheng Li², Han Yu¹, Xuemei Diao¹, Panpan Liu¹, Zhiyong Zhao¹, Xiao Chen³

Affiliations

¹ Institute of Advanced Materials, Beijing Normal University, Beijing 100875, PR China; College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, PR China.
² School of Environment, Beijing Normal University, Beijing 100875, PR China.
³ Institute of Advanced Materials, Beijing Normal University, Beijing 100875, PR China. Electronic address: xiaochen@bnu.edu.cn.

PMID: 38579384
DOI: 10.1016/j.jcis.2024.03.020

Abstract

To cope with the demand of more complex and variable applications, it is urgent to develop dual-mode triggered, breathable, and shape-memory wearable heaters for all-weather personal thermal management of composite phase change materials (PCMs). Herein, after high-temperature carbonization of ZnCo-MOF (metal-organic framework) nanosheet array grown in situ on flexible and breathable carbon cloth (CC) and subsequent encapsulation of polyethylene glycol (PEG), the as-prepared PEG/CC@Co/CNT (carbon nanotube) composite PCMs exhibited good breathability, mechanical strength (tensile strength of 9.15 MPa), thermal energy storage density (114.19 J/g), and shape memory due to the synergy of flexible CC skeleton and rigid PEG. More importantly, composite PCMs possessed excellent solar-thermal (93.7 %, 100 mW/cm²) and electro-thermals (94.5 %, 2.0 V) conversion and storage capacity, benefiting from the conjugation effect of high graphitized carbon/carbon heterostructure with fast electron/photon/phonon transmission and the localized surface plasmon resonance effect of Co nanoparticles. Therefore, the integration of solar heating and Joule heating into breathable composite PCMs can be accurately used for next-generation all-weather, all-season, dual-mode triggered personal thermal management, including indoor/outdoor, daytime/night, rainy/cloudy and other complex and changeable scenarios.

Keywords: Personal thermal management; Phase change materials; Photoelectric triggered heaters; Thermal energy storage.