Novel light-driven CF/PEG/SiO2 composite phase change materials with high thermal conductivity

被引：136
作者：
Liu, Zilu [1 ,2 ]
Wei, Huipeng [2 ]
Tang, Bingtao [2 ]
Xu, Shimei [3 ]
Zhang Shufen [2 ]
机构：
[1] Xinjiang Univ, Minist Educ, Key Lab Oil & Gas Fine Chem, Urumqi 830046, Peoples R China
[2] Dalian Univ Technol, State Key Lab Fine Chem, West Campus, Dalian 116024, Peoples R China
[3] Sichuan Univ, Coll Chem, Chengdu 610064, Sichuan, Peoples R China
来源：
SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2018年 / 174卷
基金：
中国国家自然科学基金;
关键词：
Light-driven; Composite phase change materials; Thermal conductivity; ENERGY-STORAGE; CARBON-FIBER; EXPANDED GRAPHITE; GRAPHENE; ENHANCEMENT; NANOTUBES; PARAFFIN; NANOCOMPOSITE; PERFORMANCE; CONVERSION;
D O I：
10.1016/j.solmat.2017.09.045
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Light-driven carbon fiber (CF)/polyethylene glycol (PEG)/silica (SiO2) composite phase change materials (PCMs) with high thermal conductivity, and at low cost were successfully prepared through a sol-gel process. Structural and thermal property were characterized by scanning electron microscopy (SEM), Fourier transform infrared (FT-IR) analysis, X-ray diffraction (XRD), differential scanning calorimetry (DSC), thermogravimetry analysis (TGA), and differential thermogravimetry (DTG). The CF/PEG/SiO2 composite PCMs showed amazing fusion and crystallization enthalpies of 142.6 and 154.4 J/g at CF content of 3%, and the thermal conductivity coefficient reached 0.45 W/(m.K). The prepared PCMs also showed excellent light-thermal energy conversion capability, and a potential for wide application in improving the utilization efficiency of solar energy.
引用
收藏
页码：538 / 544
页数：7
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