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直接和脉冲涂料对Sn-Ni/TiO₂复合涂料的共同沉积的影响

Eleni Rosolymou¹, Antonis Karantonis², Evangelia A Pavlatou¹

¹Laboratory of General Chemistry, School of Chemical Engineering, National Technical University of Athens, 9, Heroon Polytechniou Str., Zografos Campus, GR-15780 Athens, Greece.

Materials (Basel, Switzerland)

|January 23, 2024

概括

研究了用TiO2纳米粒子对Sn-Ni合金矩阵涂层的直接和脉冲电沉积. 在1A/dm2的直流电解压产生了最佳的磨损和光催化性能.

科学领域:

材料科学材料科学材料科学
电化学电化学电化学
纳米技术纳米技术

背景情况:

与单体材料相比,复合涂料提供了增强的性能.
锡- (Sn-Ni) 合金用于耐腐蚀性,但其性能可以进一步改进.
二氧化 (TiO2) 纳米粒子以其光催化和耐磨性能而闻名.

研究的目的:

通过使用直流 (DC) 和脉冲电沉积 (PC) 来生产与TiO2纳米颗粒共同沉积的Sn-Ni合金矩阵涂层.
调查电沉积参数 (电流类型和密度) 对TiO2共同沉积率和合金矩阵组成的影响.
为了将结构,形态和组成特征与复合涂料的性能相关联.

主要方法:

含有TiO2纳米粒子 (Evonik P25) 的Sn-Ni合金矩阵涂层是使用来自锡-化-化电解质的DC和PC电沉积制造的.
电解质中的TiO2纳米粒子负载保持在20 g/L.
应用了不同的电流密度值和电流类型 (DC和PC) 来研究它们对涂层性能的影响.

主要成果:

电流密度显着影响合金矩阵组成,而不是TiO2的结合.
只有在低峰电流密度 (Jp = 1 A/dm2) 时,PC电增强了TiO2的结合.
所有涂料都表现出类似花菜的纳米晶体结构;表面粗度与TiO2的结合相关,而微硬度则随着TiO2的含量增加而下降.
在紫外线照射下最好的磨损性能和光催化活性被观察到是通过DC电沉积在J = 1A/dm2时产生的复合材料.
复合涂料表现出被动化行为,即使在升高的阳极电位.

结论:

电沉积参数对Sn-Ni/TiO2复合涂料的结构,组成和性能具有重要影响.
在1A/dm2的直流电位是实现优越耐磨性和光催化活性的最佳选择.
开发的复合材料涂层表现出有希望的被动化和耐腐蚀性.

关键词:

斯尼涂层的使用方法在TiO2纳米粒子中.耐腐蚀性耐腐蚀性耐腐蚀性直接/脉冲电位定位微硬度微硬度微硬度这是一种纳米复合材料.光催化作用的光催化作用穿着穿着穿着穿着穿着穿着穿着

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