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Frontiers of Chemical Science and Engineering >> 2007, Volume 1, Issue 3 doi: 10.1007/s11705-007-0046-0

Preparation of solar selective absorbing CuO coating for medium temperature application

1.School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China; 2.Tianjin University Press, Tianjin 300072, China

Available online: 2007-09-05

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A new method of preparing CuO solar selective absorbing coating for medium temperature is presented. After pretreatment, brass was overlaid with CuO by chemical plating. The effects of reactant concentration, reaction temperature and reaction time on the absorptivity of CuO coating were investigated. The optimized condition of preparing CuO coating was obtained. The CuO coating was analyzed with X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM). In order to prolong the period of use, the CuO coating was protected by TiO. The experiment shows that the TiO/CuO coating is more heat-resistant, acid-resistant, and wear resistant than CuO coating, without losing absorptivity markedly. The TiO coating can reduce emissivity and protect the CuO coating.

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