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Study on a Titanate Film and Its Photocathodic Protection Effect on 403 Stainless Steel

机译:钛酸盐膜及其对403不锈钢光阴极保护作用的研究

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摘要

TiO_2 and titanate semiconductor nanomaterials have attracted tremendous interest due to their exceptional electronic and mechanical properties. In the present work, a titanate nanowire network film was prepared by a combined sol-gel and hydrothermal method. The morphology, chemical composition and photoelectrochemical behavior of the film were characterized by scanning electron microscopy, X-ray diffraction, and electrochemical techniques, respectively. The results showed that the titanate film exhibited a special three-dimensional porous structure composed of titanate nanowires. When the 403 stainless steel in a 0.5 M NaCl solution was coupled to the titanate film as a photoanode in a 1.0 M NaOH solution under illumination, its potential decreased by about 570 mV, indicating the film produced a good photocathodic protection effect for the steel. EIS measurements revealed that the charge transfer resistance of the electrochemical reaction process for the steel coupled to the titanate film decreased considerably.
机译:TiO_2和钛酸酯半导体纳米材料因其卓越的电子和机械性能而引起了极大的兴趣。在本工作中,通过溶胶-凝胶和水热法相结合制备了钛酸酯纳米线网络膜。分别通过扫描电子显微镜,X射线衍射和电化学技术表征了膜的形貌,化学组成和光电化学行为。结果表明,钛酸酯膜表现出由钛酸酯纳米线组成的特殊三维多孔结构。当将0.5 M NaCl溶液中的403不锈钢在光照下与1.0 M NaOH溶液中的光阳极耦合到钛酸酯膜时,其电位降低约570 mV,表明该膜对钢产生了良好的光阴极保护效果。 EIS测量结果表明,与钛酸盐薄膜偶联的钢的电化学反应过程的电荷转移阻力大大降低。

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  • 来源
    《Coatings for corrosion protection》|2011年|107-113|共7页
  • 会议地点 Boston MA(US)
  • 作者单位

    State Key Laboratory for Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China;

    State Key Laboratory for Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China;

    State Key Laboratory for Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China;

    State Key Laboratory for Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China;

    State Key Laboratory for Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China;

    State Key Laboratory for Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China;

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  • 正文语种 eng
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