Enhanced thermal conductivity of phase change material nanocomposites based on MnO2 nanowires and nanotubes for energy storage

doi:10.1016/j.solmat.2018.03.005

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Enhanced thermal conductivity of phase change material nanocomposites based on MnO2 nanowires and nanotubes for energy storage
	Liang, Weidong; Wang, Lina; Zhu, Hongyu; Pan, Yu; Zhu, Zhaoqi; Sun, Hanxue; Ma, Chonghua; Li, An
刊名	SOLAR ENERGY MATERIALS AND SOLAR CELLS
	2018-06-15
卷号	180 页码:158-167
关键词	Phase change material MnO2 nanowires MnO2 nanotubes
ISSN号	0927-0248
DOI	10.1016/j.solmat.2018.03.005
英文摘要	Phase change materials (PCMs) have been widely used as efficient materials in latent heat thermal storage systems for various applications. The poor thermal conductivity of most organic phase change materials (OPCMs), however, has long been considered as one of big obstacles hindering their practical applications. Here, we report the first examples of Manganese dioxide nanowires and nanotubes based PCM nanocomposites (named as MnO2 NWs/PCM and MnO2 NTs/PCM) with enhanced thermal conductivity by simply using MnO2 nanowires and nanotubes as efficient nanofillers. The PCMs nanocomposites show high latent heat ranging from 140.1 J g(-1) to 206.1 J g(-1). The thermal conductivity of PCM nanocomposites were dramatically enhanced by incorporation of Manganese dioxide nanowires and nanotubes with a maximum value of 377.16% of that of pure PA achieved, which is nearly two times of that of control. X-ray diffraction (XRD) analysis shows that the incorporation of nanofillers does not change the crystalline structure of OPCMs while lowering its crystalline size. The PCM nanocomposites also show excellent thermal stability of recyclability. Only a slight loss of 2.8% in latent heat was observed after 100 times of melting/cooling cycles. Based on their high heat storage performance, excellent thermal conductivity and thermal stability of recyclability, the as-prepared PCM nano composites may have great potentials for energy saving applications.
资助项目	National Natural Science Foundation of China[51403092][51462021][51663012] ; Natural Science Foundation of Gansu Province, China[1610RJYA001] ; Support Program for Hongliu Young Teachers[Q201411] ; Hongliu Elitist Scholars of LUT[J201401]
WOS研究方向	Energy & Fuels ; Materials Science ; Physics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000430765600019
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/32598]
专题	石油化工学院材料科学与工程学院
通讯作者	Li, An
作者单位	Lanzhou Univ Technol, Coll Petrochem Technol, Langongping Rd 287, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Liang, Weidong,Wang, Lina,Zhu, Hongyu,et al. Enhanced thermal conductivity of phase change material nanocomposites based on MnO2 nanowires and nanotubes for energy storage[J]. SOLAR ENERGY MATERIALS AND SOLAR CELLS,2018,180:158-167.
APA	Liang, Weidong.,Wang, Lina.,Zhu, Hongyu.,Pan, Yu.,Zhu, Zhaoqi.,...&Li, An.(2018).Enhanced thermal conductivity of phase change material nanocomposites based on MnO2 nanowires and nanotubes for energy storage.SOLAR ENERGY MATERIALS AND SOLAR CELLS,180,158-167.
MLA	Liang, Weidong,et al."Enhanced thermal conductivity of phase change material nanocomposites based on MnO2 nanowires and nanotubes for energy storage".SOLAR ENERGY MATERIALS AND SOLAR CELLS 180(2018):158-167.