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首页> 外文期刊>Diffusion and Defect Data. Solid State Data, Part B. Solid State Phenomena >Physical and Chemical Characterization of Ni+Mo0_2 Composite Electrocoatings
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Physical and Chemical Characterization of Ni+Mo0_2 Composite Electrocoatings

机译：Ni + Mo0_2复合电沉积涂层的理化特性

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摘要

This work deals with the development of new electrochemical ways to improve the cathode activity towards hydrogen evolution reaction. An in situ composite electrodeposition technique has been proposed to obtain the porous Ni+M0O_2 coatings by simultaneous co-deposition of Ni and M0O_2 onto a Cu substrate from a nickel plating bath containing 10 g dm~(-3) of M0O_2 powder suspended by magnetic stirring. Electrodeposition was conducted at 30°C at the deposition current density of j_d = 50-250 mA cm~(-2). SEM, EDS, and XRD measurements, were applied for physical and chemical characterization of the obtained coatings. It was found that by controlling the deposition conditions it was possible to obtain porous Ni+M0O_2 coatings containing from 10 to 15 at.% of M0O_2. The XRD results confirmed their diphase structure with a polycrystalline Ni matrix into which a crystalline component in the form of M0O_2 particles was built-in.
机译：这项工作涉及新的电化学方法的发展，以提高阴极对氢析出反应的活性。已经提出了一种原位复合电沉积技术，该方法是通过将镍和M0O_2同时从包含10 g dm〜（-3）的M0O_2粉末的镍电镀液中共沉积到Cu基体上，从而获得多孔的Ni + M0O_2涂层，所述粉末通过磁力悬浮搅拌。在30℃下以j_d ＝ 50-250mA cm·（-2）的沉积电流密度进行电沉积。 SEM，EDS和XRD测量用于获得的涂层的物理和化学表征。已经发现，通过控制沉积条件，可以获得包含10至15原子％的MO 2的多孔Ni + MO 2涂层。 XRD结果证实了其具有多晶Ni基体的双相结构，其中内置有以MO 2颗粒形式存在的晶体成分。

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