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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Characterization of black and white chromium electrodeposition films: surface and optical properties
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Characterization of black and white chromium electrodeposition films: surface and optical properties

机译：黑白铬电沉积膜​​的表征：表面和光学性质

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摘要

Thin films of black and white chromium have been prepared by electrodeposition on stainless steel substrates. The potentiodynamic and potentiostatic technique was used in order to prepare these materials. XRD, XPS, SEM and spectral reflectance in the UV-Visible-near IR and medium IR ranges, for both films coatings were characterized. From the SEM analysis, it was found while the black chromium has a lamellar morphology that leads to a strong dispersion level, the white one has a flat morphology. The chemical composition of these thin films was determined by XRD and XPS technique. The XRD results showed that in both cases chromium is the main bulk chemical compound in both films. However, from XPS analysis of these surfaces, it was possible to determine that the most external layers of the films are made of different kinds of chromium compounds. The black chromium film has better optical properties to transform solar energy into thermal energy, and these properties remain practically constant even when heat treated to a high temperature, 400 degreesC. On the other hand the white chromium film is a better substrate for hydrogen evolution reactions than the black one. (C) 2003 Elsevier B.V. All rights reserved. [References: 8]
机译：黑色和白色铬的薄膜已经通过在不锈钢基体上进行电沉积制备。为了制备这些材料，使用了电位动力学和恒电位技术。表征了两种膜涂层的XRD，XPS，SEM和在UV-Visible-Near IR和Medium IR范围内的光谱反射率。通过SEM分析，发现黑色铬具有层状形态，导致较强的分散度，而白色铬具有扁平状。这些薄膜的化学组成通过XRD和XPS技术确定。 XRD结果表明，在两种情况下，铬都是两种膜中的主要本体化合物。但是，从这些表面的XPS分析可以确定，薄膜的最外层是由不同种类的铬化合物制成的。黑铬膜具有更好的光学性能，可以将太阳能转化为热能，并且即使热处理至高温（400摄氏度），这些性能也几乎保持不变。另一方面，白色铬膜比黑色铬膜是更好的制氢反应底物。 （C）2003 Elsevier B.V.保留所有权利。 [参考：8]

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