Fabrication of Al2O3-NaCl Composite Heat Storage Materials by One-step Synthesis Method
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2016年第5期
论文作者：朱教群 李儒光 ZHOU Weibin ZHANG Hongguang CHENG Xiaomin
文章页码：950 - 954
摘 要：Thermal energy storage is an attractive option for effectiveness since it gives flexibility and reduces energy consumption and costs. New composite materials for storage and transformation of heat of NaCl-Al2O3 composite materials were synthesized by one-step synthesis method. The chemical composition, morphology, structure, and thermal properties were investigated by XRD, EDS, SEM, and DSC. The results show that NaCl can be absorbed by Al2O3 particle from 800 to 900 ℃ for Al2O3 particle surface is rich active structure. The results also indicate that the leakage of NaCl when the phase change can be prevented by Al2O3 particles and the enthalpy of phase change of NaCl-Al2O3 material is 362 J/g. The composites have an excellent heat storage capacity. Therefore, this study contributes to one new thought and method to prepare high temperature heat storage material and this material can be applied in future thermal engineering.
朱教群1,2，李儒光2，ZHOU Weibin1,2，ZHANG Hongguang1，CHENG Xiaomin1
1. State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology2. School of Material Science and Engineering, Wuhan University of Technology
摘 要：Thermal energy storage is an attractive option for effectiveness since it gives flexibility and reduces energy consumption and costs. New composite materials for storage and transformation of heat of NaCl-Al2O3 composite materials were synthesized by one-step synthesis method. The chemical composition, morphology, structure, and thermal properties were investigated by XRD, EDS, SEM, and DSC. The results show that NaCl can be absorbed by Al2O3 particle from 800 to 900 ℃ for Al2O3 particle surface is rich active structure. The results also indicate that the leakage of NaCl when the phase change can be prevented by Al2O3 particles and the enthalpy of phase change of NaCl-Al2O3 material is 362 J/g. The composites have an excellent heat storage capacity. Therefore, this study contributes to one new thought and method to prepare high temperature heat storage material and this material can be applied in future thermal engineering.
关键词：
