In an innovative stride towards sustainable energy solutions, researchers at the University of Science and Technology Beijing have unveiled a new composite phase change material (PCM) that could significantly enhance thermal energy storage in the construction sector. This breakthrough, detailed in a recent study published in ‘工程科学学报’ (Journal of Engineering Science), focuses on hydroxyapatite aerogels, which are not only effective at storing thermal energy but also boast impressive safety features.
The study, led by Pan-pan Liu from the School of Materials Science and Engineering, highlights the pressing need for efficient energy storage solutions amidst growing concerns over energy shortages and environmental pollution. “Thermal energy storage is crucial for balancing energy supply and demand,” Liu explained. “Our research aims to improve energy efficiency while addressing environmental challenges.”
The research team utilized a hydrothermal method to create self-supporting hydroxyapatite aerogels, which were then transformed into composite PCMs through an impregnation process. These materials were tested for their thermal properties, revealing promising results. The hydroxyapatite aerogels loaded with octadecanol and paraffin demonstrated melting enthalpies of 113.78 J·g−1 and 85.10 J·g−1, respectively, indicating their high energy storage capacity. Additionally, the materials exhibited remarkable thermal and chemical stability, essential for long-term applications.
What sets this research apart is the combination of high thermal performance with inherent safety features. The hydroxyapatite substrate is noted for its flame retardancy and corrosion resistance, making it an ideal candidate for applications in intelligent thermal insulation textiles and building materials. “This composite not only enhances energy storage but also ensures safety and environmental protection,” Liu added, emphasizing the dual benefits of the material.
The implications for the construction industry are significant. As builders and developers seek to integrate sustainable practices, these advanced PCMs could lead to more energy-efficient buildings that require less energy for heating and cooling. This not only reduces operational costs but also contributes to lower carbon footprints, aligning with global sustainability goals.
Moreover, the use of such materials could pave the way for innovative designs in energy-efficient architecture. With the construction sector accounting for a substantial portion of global energy consumption, the introduction of hydroxyapatite-based PCMs could represent a pivotal shift toward greener building practices.
As the industry continues to grapple with energy challenges, the findings from Liu’s research could inspire further developments in material science, potentially leading to a new generation of construction materials that are both high-performing and environmentally friendly. For more information on this groundbreaking work, visit lead_author_affiliation.
