Solid–liquid phase change materials (PCMs) are a kind of important heat energy storage materials that can store/release great amounts of latent heat at a specific temperature or within a narrow temperature range and thus can be applied in a lot of fields related to heat energy storage or thermal management. However, their practical applications are still limited due to formidable challenges such as the risk of leakage, easy phase separation and low thermal conductivity, etc. Silica possesses the merits of cheap, high chemical and physical stab...
