Abstract: The development of nanofluids has strongly alleviated the research of solar radiation absorbing materials serving in direct absorption type solar energy collection systems. Copper has the advantages of low cost, abundant source and excellent thermal conductivity. Moreover, the copper nanofluids prepared by dispersing nanoscale copper particles in the traditional solar absorbing mediums display strong absorptivity to visible light. This paper firstly reviews the preparation methodology of nanocopper additives with various morphologies, i.e. sphere, cube, rod and wire, by hydrothermal reduction method, and emphatically discusses the effects of surfactants on the morphology control and dispersion stability of nanocopper in the mediums. Besides, it also summarizes the research status of physical characteristics of the copper nanofluids such as thermal conductivity, viscosity, specific heat and light radiation, and sketches out copper nanofluids’ application in the direct absorption type solar energy collection systems. Finally, some unresolved problems and the corresponding suggestions for further research are proposed.
周璐, 马红和, 马素霞, 杜慧娟. 用于太阳能集热介质的纳米铜制备技术与铜纳米流体性能综述[J]. 材料导报, 2018, 32(15): 2576-2583.
ZHOU Lu, MA Honghe, MA Suxia, DU Huijuan. A State-of-Art Review on Preparation Methodology of Nano-copper and Propertiesof Copper Nanofluids Used in Solar Radiation Absorbing Materials. Materials Reports, 2018, 32(15): 2576-2583.
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2018, Vol. 32 
