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Fabrication of Al2O3-NaCl composite heat storage materials by one-step synthesis method

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Abstract

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 °C 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.

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Authors and Affiliations

  1. State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, 430070, China

    Jiaoqun Zhu  (朱教群), Weibin Zhou, Hongguang Zhang & Xiaomin Cheng

  2. School of Material Science and Engineering, Wuhan University of Technology, Wuhan, 430070, China

    Jiaoqun Zhu  (朱教群), Ruguang Li  (李儒光) & Weibin Zhou

Authors
  1. Jiaoqun Zhu  (朱教群)
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  2. Ruguang Li  (李儒光)
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  3. Weibin Zhou
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  4. Hongguang Zhang
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  5. Xiaomin Cheng
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Corresponding author

Correspondence to Ruguang Li  (李儒光).

Additional information

Funded by the National Natural Science of China (No. 2012BAA05B06)

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Zhu, J., Li, R., Zhou, W. et al. Fabrication of Al2O3-NaCl composite heat storage materials by one-step synthesis method. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 31, 950–954 (2016). https://doi.org/10.1007/s11595-016-1473-x

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  • DOI: https://doi.org/10.1007/s11595-016-1473-x

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