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Light-driven PEG/Ti3C2Tx form-stable phase change film for energy storage

Yan Zhou,Xiaojian Wang,Dekun Sheng,Xiangdong Liu,Yuming Yang

Light-driven PEG/Ti 3 C 2 T x form-stable phase change films for energy storage crosslinked by Co 2+ were prepared through facile solution mixing. It is the strong interactions among PEG , Ti 3 C 2 T x and Co 2+ that endowed the system with excellent form-stability with only 5.0 wt% supporting. And the latent heat of samples was 142.1 J/g with light-thermal conversion and storage efficiency higher than 86.9%. Meanwhile, the samples possessed improved thermal stability and favorable thermal reliability. The fabricated films with comprehensive properties shows great perspective to be used in energy storage devices.