Preparation and Thermophysical Properties of High Thermal Conductive Solar Salt MWCNTs Composite Materials

doi:10.1002/slct.201900249

CORC > 青海盐湖研究所 > 中国科学院青海盐湖研究所 > 盐湖资源与化学实验室

	Preparation and Thermophysical Properties of High Thermal Conductive Solar Salt MWCNTs Composite Materials
	Wu, Yanze; Li, Jinli; Wang, Min; Wang, Huaiyou; Zhao, Youjing
刊名	CHEMISTRYSELECT
	2019-04-24
卷号	4 期号:15 页码:4521-4527
ISSN号	2365-6549
DOI	10.1002/slct.201900249
英文摘要	To improve the heat transfer performance of the photothermal molten salt (Solar salt), a composite material of Solar salt doped with MWCNTs (Multi-walled carbon nanotubes) which has excellent thermal conductivity, was prepared and analyzed. XRD was used to analyze the composition of the composite, which remained as NaNO3 and KNO3 without change. XPS was used to analyze the C1s energy spectrum, the carbon nanotubes were purified and the impurity groups were greatly reduced after high temperature melting. Melting point, phase change enthalpy and specific heat of composite materials were measured by DSC; the decomposition temperature of composite material were measured by TGA; the density was measured by the Archimedes method; the thermal diffusivity was measured by the laser flash method. The thermal conductivity was calculated according to the thermal conductivity formula: k=Cp.rho.alpha. When the Solar salt was doped with 0.4% MWCNTs, the thermal conductivity was greatly improved, increasing by 87% to 0.77 W/(m.k). And the influence of carbon nanotubes on the spatial structure of nitrate was analyzed by Raman spectroscopy. This composite material had superior thermal properties than Solar salt and was expected to be applied in solar thermal power generation to improve solar energy utilization efficiency.
内容类型	期刊论文
源URL	[http://ir.isl.ac.cn/handle/363002/34096]
专题	青海盐湖研究所_盐湖资源与化学实验室中国科学院青海盐湖研究所
推荐引用方式 GB/T 7714	Wu, Yanze,Li, Jinli,Wang, Min,et al. Preparation and Thermophysical Properties of High Thermal Conductive Solar Salt MWCNTs Composite Materials[J]. CHEMISTRYSELECT,2019,4(15):4521-4527.
APA	Wu, Yanze,Li, Jinli,Wang, Min,Wang, Huaiyou,&Zhao, Youjing.(2019).Preparation and Thermophysical Properties of High Thermal Conductive Solar Salt MWCNTs Composite Materials.CHEMISTRYSELECT,4(15),4521-4527.
MLA	Wu, Yanze,et al."Preparation and Thermophysical Properties of High Thermal Conductive Solar Salt MWCNTs Composite Materials".CHEMISTRYSELECT 4.15(2019):4521-4527.