The group of SHI Quan at the CAS Dalian Institute of Chemical Physics, has developed a graphene-based composite phase change material with high light-to-heat conversion efficiency. The composite phase change material has a high loading capacity (95wt%), can maintain a stable phase change enthalpy (162.8J/g) after 1000 heat and cold cycles, and shows excellent phase change heat storage performance. In addition, the material also has excellent light-to-heat conversion ability, which can quickly convert solar energy into thermal energy and store it in the phase change material, with a conversion efficiency of up to 93.7%.

Chemical Engineering Journal https://doi.org/10.1016/j.cej.2021.132439