Alternative energy sources are gaining much popularity but their intermittent nature limits their applications. Energy storage is the main concern for the researchers working in the field of alternate energy. Phase change materials (PCMs) are very promising materials for application in energy storage systems to cater to the goal of sustainable development. Their remarkable phase change properties, high-energy storage density, and isothermal heat storage and retrieval properties make them suitable candidates in a variety of applications. However, their poor thermal conductivity limits their widespread application in high power systems. This review discuss the adoption of the method of nanoparticle dispersion in PCM as a suitable approach to enhance the thermal conductivity of the composite. Among various types of nanoparticles, carbon-based nanoparticles due to their high thermal conductivities and significantly lower densities are gaining popularity as the suitable thermal conductivity enhancers of PCM. This review discuss the effect on thermal properties of various PCM enhanced with various mass or volume fractions of different types of carbon nanostructures. The information will be beneficial to various researchers working in the field of energy storage.

替代能源越来越受欢迎，但它们的间歇性限制了它们的应用。储能是替代能源领域研究人员的主要关注点。相变材料（PCM）是非常有前景的材料，可用于储能系统以满足可持续发展的目标。它们显着的相变特性、高能量存储密度以及等温储热和回收特性使其成为各种应用的合适候选者。然而，它们较差的导热性限制了它们在大功率系统中的广泛应用。本综述讨论了采用纳米粒子分散在 PCM 中的方法作为提高复合材料热导率的合适方法。在各种类型的纳米粒子中，碳基纳米粒子由于其高导热性和显着较低的密度，作为 PCM 合适的导热性增强剂越来越受欢迎。本综述讨论了不同类型碳纳米结构的不同质量或体积分数增强的各种 PCM 对热性能的影响。这些信息将有益于在储能领域工作的各种研究人员。