二维纳米片基复合相变储热材料研究进展

相变材料（PCMs）作为潜热储存和释放的介质,能够解决热能供需矛盾,从而缓解能源危机。纯相变材料具有能量密度高、温度范围广、能量输出稳定性强等优点,但其热导率低和在相变过程发生渗漏的缺点阻碍了其广泛的应用和发展。通过将PCMs与二维纳米片复合,PCMs热导率低和渗漏问题被有效解决。通过在导热机理方面进行详细阐述的基础上,综述了近几年来有关碳基二维纳米片、六方氮化硼（h-BN）纳米片、二硫化钼等复合储热材料的研究进展,为高性能二维纳米片基复合PCMs的设计提供一定的研究思路。

Research progress on two-dimensional nanosheet-based composite phase change materials for thermal energy storage

Phase change materials（PCMs） are latent heat energy storage and release media,which can solve the contradiction between heat energy supply and demand,thereby alleviating the energy crisis.Pure phase change materials have the advan-tages of high energy density,wide temperature,strong energy output stability,etc.,but their low thermal conductivity and the shortcomings of leakage during the phase change process hinder their wide application and development.By combining PCMs with two-dimensional nanosheets,the low thermal conductivity and leakage problems of PCM are effectively solved.Based on detailed description of the thermal conduction mechanism,the research progress of two-dimensional nanosheet composite heat storage materials in recent years was reviewed,such as carbon-based two-dimensional nanosheets,hexagonal boron ni-tride（h-BN） nanosheets,molybdenum disulfide,etc.It provided research strategies for the design of high-performance two-dimensional nanosheet-based composite PCMs.