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dc.contributor.authorLi, Chuanchangen_US
dc.contributor.authorXie, Baoshanen_US
dc.contributor.authorChen, Jianen_US
dc.contributor.authorHe, Zhangxingen_US
dc.contributor.authorChen, Zhongshengen_US
dc.contributor.authorLong, Yien_US
dc.identifier.citationLi, C., Xie, B., Chen, J., He, Z., Chen, Z. & Long, Y. (2019). Emerging mineral-coupled composite phase change materials for thermal energy storage. Energy Conversion and Management, 183, 633-644.
dc.description.abstractA mineral-coupled support, flake graphite-carbon nanofiber-modified bentonite, was used to stabilize stearic acid for constructing form-stable phase change material composites. In order to achieve a synergistic improvement of thermal conductivity and loading space, the supporting material was prepared by growing carbon nanofiber on flake graphite surface through chemical vapor deposition technique and then chemically bonding with modified bentonite. The effect of coupling behavior on interfacial thermal resistance was investigated and results show that the thermal conductivity of the coupled supporting material (4.595 W m−1 K−1) is higher than that of non-coupled support (4.291 W m−1 K−1), proving chemical bonding can decrease interface thermal resistance at a certain extent. The performances of composites were further explored, which indicates the obtained composite base on coupled support possesses good chemical compatibility, and great thermal stability under 180 °C. It also shows that this composite with 41.90% loading capability has latent heat value of 79.13 J g−1 for melting and 79.13 J g−1 for freezing, respectively. After 50 heating-cooling cycles, the variation of melting latent heat was within 0.05%, exhibiting a great thermal reliability. Besides, thermal conductivity of this composite is 10.50 times higher than that of pure phase change material, resulting in more rapid heat transfer efficiency, and excellent transient temperature response recorded by thermal infrared images. In all, the composite is a potential candidate for thermal storage applications due to larger latent heat capability and considerable thermal conductivity.en_US
dc.relation.ispartofEnergy Conversion and Managementen_US
dc.rights© 2019 Elsevier Ltd. All rights reserved.en_US
dc.titleEmerging mineral-coupled composite phase change materials for thermal energy storageen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Materials Science and Engineeringen_US
dc.subject.keywordsForm-stable Phase Change Materialsen_US
dc.subject.keywordsCoupling Behavioren_US
dc.description.acknowledgementThis work was supported by the National Natural Science Foundation of China, China (51504041, 51874047); the Training Program for Excellent Young Innovators of Changsha (kq1802007); the Fund for University Young Core Instructors of Hunan Province, China; the Natural Science Foundation of Hunan Province (2016JJ3009); the Key Research and Development Program of Jiangxi Province, China (20171BBH80021); and the Hunan Province 2011 Collaborative Innovation Center of Clean Energy and Smart Grid.en_US
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