选择性吸收太阳能的黑色涂料的电化学合成研究

V Moise, R Cloots, A Rulmont
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引用次数: 18

摘要

为了在具有良好光学和力学性能的金属衬底上建立可重复的黑色,粘接和均匀薄膜的电化学制备工艺,我们需要控制所有电化学参数并了解它们的影响。为此,在不同的条件下制备了不同的涂层,其显微结构与合成参数和物理性质相关。用铬酸盐浴在镀镍铜金属衬底上沉积了氧化铬薄膜。在本文中,我们根据一些实验参数,更具体地说,是根据我们实验中使用的电化学镀液中六氟硅酸和三价铬离子的浓度,提出了沉积物微观结构的演变。通过改变三价铬离子的来源,粒子形态的显著差异已被证明:(i)从含有六价铬离子的溶液中添加蔗糖或(ii)从向浴液中添加三价铬盐。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Study of the electrochemical synthesis of selective black coatings absorbing solar energy

To set up a reproducible electrochemical preparation process of a black, adhesive and homogeneous film on a metallic substrate with well-defined optical and mechanical properties, we need to control all the electrochemical parameters and to understand their influence. For so doing, different coatings have been prepared in various conditions and their microstructures have been correlated with the synthesis parameters as well as the physical properties. Chromium oxide films on nickel-coated copper metallic substrates have been deposited from a chromate bath. In this paper, we present the evolution of the microstructure of the deposits according to some experimental parameters, more specifically the concentration of the hexafluorosilicic acid and trivalent chromium ions present in the electrochemical bath used in our experiments. A marked difference in the particle morphology has been put into evidence by modifying the source of the trivalent chromium ions: (i) from the addition of sucrose to the solution containing hexavalent chromium ions or (ii) from the addition of a trivalent chromium salt to the bath.

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