Fatty amines/graphene sponge form-stable phase change material composites with exceptionally high loading rates and energy density for thermal energy storage
Chen, Tao; Liu, Chao; Mu, Peng; Sun, Hanxue; Zhu, Zhaoqi; Liang, Weidong; Li, An
2020-02-15
Source PublicationCHEMICAL ENGINEERING JOURNAL
ISSN1385-8947
Volume382
AbstractThe development of form-stable phase change materials (FSPCMs) with large latent heat, excellent thermal stability, and recyclability is essential for their practical applications for thermal or solar energy saving. Here, we first report the exploitation of fatty amines (FAs), in this case tetradecylamine (TDA) and octadecylamine (ODA), as novel organic phase change materials (PCMs) for fabrication of FSPCM composites with exceptional high energy density using porous 3D graphene sponge (GS) as porous supporting materials. The resulting fatty amines/graphene sponge composites (FAs/GS) show high latent heat of ranging from 293 kJ kg(-1) to 303 kJ kg(-1) and low supercooling degree of 7-9 degrees C. Surprisingly, it is found that the loading rate of these two FAs into GS is as high as 7063-10660 wt%, which is nearly three orders of magnitudes higher than that of most reported FSPCMs. In addition, compared with the FAs, the presence of GS results in an enhancement of thermal conductivity of FAs/GS. After 200 cycles of thermal cycling, the latent heat content of FAs/GS still remains as high as 93.34% (TDA/GS) and 93.83% (ODA/GS), implying an excellent thermal stability. Taking advantages of the merits mentioned above, the findings of this work would not only open a new way for exploiting the FAs as new high-performance organic PCMs, but also provide a possibility for construction of such FAs/GS with great potentials for real energy-saving applications based on their exceptional high energy density, low supercooling degree, unprecedented high loading value, excellent thermal stability and recycling capacity.
KeywordPhase change material Fatty amine Graphene sponge Thermal energy storage Thermal conductivity
DOI10.1016/j.cej.2019.122831
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51962018][21975113][51663012] ; Key Talent Project of Gansu, Project of Collaborative Innovation Team[2017-RC-33]
WOS Research AreaEngineering
WOS SubjectEngineering, Environmental ; Engineering, Chemical
WOS IDWOS:000503381200105
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:41[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.lut.edu.cn/handle/2XXMBERH/76633
Collection石油化工学院
Corresponding AuthorLi, An
AffiliationLanzhou Univ Technol, Dept Chem Engn, Coll Petrochem Engn, Lanzhou 730050, Gansu, Peoples R China
First Author AffilicationColl Petrochem Engn
Corresponding Author AffilicationColl Petrochem Engn
First Signature AffilicationColl Petrochem Engn
Recommended Citation
GB/T 7714
Chen, Tao,Liu, Chao,Mu, Peng,et al. Fatty amines/graphene sponge form-stable phase change material composites with exceptionally high loading rates and energy density for thermal energy storage[J]. CHEMICAL ENGINEERING JOURNAL,2020,382.
APA Chen, Tao.,Liu, Chao.,Mu, Peng.,Sun, Hanxue.,Zhu, Zhaoqi.,...&Li, An.(2020).Fatty amines/graphene sponge form-stable phase change material composites with exceptionally high loading rates and energy density for thermal energy storage.CHEMICAL ENGINEERING JOURNAL,382.
MLA Chen, Tao,et al."Fatty amines/graphene sponge form-stable phase change material composites with exceptionally high loading rates and energy density for thermal energy storage".CHEMICAL ENGINEERING JOURNAL 382(2020).
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