Microencapsulation of Metal-based Phase Change Material for High-temperature Thermal Energy Storage

Nomura, Takahiro; Zhu, Chunyu; Sheng, Nan; Saito, Genki; Akiyama, Tomohiro

Microencapsulation of Metal-based Phase Change Material for High-temperature Thermal Energy Storage

Nomura, Takahiro; Zhu, Chunyu; Sheng, Nan et al.

Scientific Reports, 2015, 5, 9117

Permalink : https://hdl.handle.net/2115/58555

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アクセス権	open access
URI	https://hdl.handle.net/2115/58555
タイトル	Microencapsulation of Metal-based Phase Change Material for High-temperature Thermal Energy Storage
著者	Nomura, Takahiro ; Zhu, Chunyu ; Sheng, Nan ; Saito, Genki ; Akiyama, Tomohiro
e-Rad_Researcher 50714523 著者名 Nomura, Takahiro
e-Rad_Researcher 30749255 著者名 Zhu, Chunyu
著者名 Sheng, Nan
e-Rad_Researcher 00749278 著者名 Saito, Genki
e-Rad_Researcher 50175808 著者名 Akiyama, Tomohiro
言語	英語
発行日	2015-03-13
出版者	Nature Publishing Group
収録物名	Scientific Reports
巻(号)	5
ページ	9117
抄録	Latent heat storage using alloys as phase change materials (PCMs) is an attractive option for high-temperature thermal energy storage. Encapsulation of these PCMs is essential for their successful use. However, so far, technology for producing microencapsulated PCMs (MEPCMs) that can be used above 500 degrees C has not been established. Therefore, in this study, we developed Al-Si alloy microsphere MEPCMs covered by alpha-Al2O3 shells. The MEPCM was prepared in two steps: (1) the formation of an AlOOH shell on the PCM particles using a boehmite treatment, and (2) heat-oxidation treatment in an O-2 atmosphere to form a stable alpha-Al2O3 shell. The MEPCM presented a melting point of 573 degrees C and latent heat of 247 J g(-1). The cycling performance showed good durability. These results indicated the possibility of using MEPCM at high temperatures. The MEPCM developed in this study has great promise in future energy and chemical processes, such as exergy recuperation and process intensification.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	Creative Commons Attribution 4.0 International
PISSN	2045-2322
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1038/srep09117