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首页> 外文期刊>Diffusion and Defect Data. Solid State Data, Part B. Solid State Phenomena >Tailoring Structural and Electrochemical Properties of Composite Ni-based Electrocoatings
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Tailoring Structural and Electrochemical Properties of Composite Ni-based Electrocoatings

机译：复合镍基电沉积涂料的结构和电化学性能的定制

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Oxygen electroevolution reaction (OER) was studied in alkaline medium on the Ni-P+Ti0_2 composite electrocoatings obtained from the Watts type bath containing the suspension of TiO_2 particles. The comparable Ni-P coatings were electrodeposited from the supporting electrolyte without titanium dioxide. The galvanostatic electrodeposition of all coatings was conducted on a polycrystalline copper substrate at the deposition current density of 240 mA cm~(-2) for 30 min. The electrolysis process was carried out at temperatures of 293-333 K. It was found that the mass increment and the content of Ti0_2 in the obtained coatings is a decreasing function of the electrodeposition temperature. It was also acertained that the built-in TiO_2 as the composite component into the Ni-P matrix has no effect on the improvement of the electrocatalytic properties of the Ni-P+TiO_2 composite electrodes towards OER probably due to limitation of the size of the electrochemically active surface area of the electrode material obtained under proposed conditions.
机译：在碱性介质上研究了从含有TiO_2颗粒悬浮液的Watts型浴中获得的Ni-P + TiO2复合电涂层的氧电演化反应（OER）。在没有二氧化钛的情况下，从支持电解质中电沉积可比较的Ni-P涂层。所有涂层的恒电流电沉积在多晶铜基板上以240 mA cm〜（-2）的沉积电流密度进行30分钟。电解过程在293-333 K的温度下进行。发现所获得的涂层的质量增量和TiO_2的含量是电沉积温度的下降函数。还可以确定，内置的TiO_2作为Ni-P基体中的复合组分，对Ni-P + TiO_2复合电极对OER的电催化性能的改善没有影响，这可能是由于其尺寸的限制。在建议的条件下获得的电极材料的电化学活性表面积。

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