Preparation of graphene oxide coated tetradecanol/expanded graphite composite phase change material for thermal energy storage - 文章详情页

作者：

Chi, Bichuan (Chi, Bichuan.) | Yao, Yan (Yao, Yan.) (学者：姚燕) | Cui, Suping (Cui, Suping.) (学者：崔素萍) | Jin, Xiaodong (Jin, Xiaodong.)

收录：

EI SCIE

摘要：

In　this　work,　the　form-stable　phase　change　material　(PCM)　was　prepared　by　absorbing　tetradecanol　(TD)　into　expanded　graphite　(EG).　Then,　the　obtained　TD/EG　was　coated　with　graphene　oxide　(GO)　through　electrostatic　self-assembly　to　prepare　a　novel　composite　PCM　(TD/EG-GO).　The　morphology,　phase　change　and　thermal　properties　of　TD/EG-GO　were　fully　discussed.　The　DSC　analysis　shows　that　the　TD/EG-GO　composite　melts　at　35.2　°C　with　latent　heat　value　of　189.5　J/g　and　freezes　at　34.9　°C　with　latent　heat　value　of　187.9　J/g.　The　thermal　cycling　test　results　reveal　that　the　latent　heat　of　TD/EG-GO　composite　decrease　by　less　than　1%　after　500　thermal　cycles,　indicating　that　the　structure　of　GO-coated　EG　efficiently　prevents　the　leakage　of　TD.　The　thermal　stability　and　thermal　conductivity　of　TD/EG-GO　composite　are　also　improved　compared　with　that　of　uncoated　TD/EG,　demonstrating　the　multiple　benefits　of　surface　coating　of　GO.　©　2020

关键词：

Graphene Graphite Heat storage Latent heat Morphology Phase change materials Thermal conductivity Thermal cycling

作者机构：

[ 1 ] [Chi, Bichuan]College of Material Science and Engineering, Beijing University of Technology, Beijing; 100022, China
[ 2 ] [Chi, Bichuan]China Institute of Building Standard Design & Research, Beijing; 100048, China
[ 3 ] [Yao, Yan]College of Material Science and Engineering, Beijing University of Technology, Beijing; 100022, China
[ 4 ] [Cui, Suping]College of Material Science and Engineering, Beijing University of Technology, Beijing; 100022, China
[ 5 ] [Jin, Xiaodong]College of Material Science and Engineering, Beijing University of Technology, Beijing; 100022, China

通讯作者信息：

崔素萍
[cui, suping]college of material science and engineering, beijing university of technology, beijing; 100022, china

电子邮件地址：

cuisuping@bjut.edu.cn

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