LAUSR

Continuous industrial development has increased the demand of energy. Inevitably, the development of energy sources is steadily progressing using various methods. Rather than establishing a new energy source, a system for storing waste heat generated by the industry has now been accepted as a useful strategy. Among such systems, the hydration and dehydration reactions of MgO/Mg(OH)2 are eco-friendly, have relatively low toxicity and risk, and have a large reserves. Therefore, it is a promising candidate for a heat storage system. In this study, ultra-high porous particles were used to maximize the heat storage efficiency of pure MgO. Due to its large surface area, the heat storage rate was 90.3% of the theoretical value and the reaction rate was very high. In addition, as structural collapse, likely to be caused by volume changes between reactions, is blocked as the porous region is filled and emptied, the cycle stability is secured. Ultra-high porous MgO micro-particles can be used to build eco-friendly heat storage systems. This article is protected by copyright. All rights reserved.