相关实验视频

Updated: Jan 15, 2026

Determining Tribocorrosion Rate and Wear-Corrosion Synergy of Bulk and Thin Film Aluminum Alloys

Determining Tribocorrosion Rate and Wear-Corrosion Synergy of Bulk and Thin Film Aluminum Alloys

Published on: September 11, 2018

在氧化环境下化纳米孔TiO₂膜的腐蚀行为:对电化学工程表面的研究

Surya Prakash Gajagouni^1,2, Imad Barsoum^1,2, Sung Oh Cho³

¹Department of Mechanical and Nuclear Engineering, Khalifa University Abu Dhabi 127788 United Arab Emirates surya.goud28@gmail.com.

Nanoscale advances

|October 13, 2025

概括

通过电化学化制造的工程纳米多孔二氧化 (TiO2) 薄膜显示了增强的耐腐蚀性. 这些稳定的TiO2涂层在氧化环境中提供了强大的保护,适合各种应用.

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
腐蚀科学腐蚀科学

背景情况:

二氧化 (TiO2) 对于需要耐腐蚀的应用至关重要.
电化学化是制造功能性TiO2膜的一个有前途的方法.
了解纳米孔状TiO2的腐蚀行为对于材料开发至关重要.

研究的目的:

系统地研究使用电化学化方法制造纳米孔的TiO2薄膜.
为了评估这些TiO2膜在氧化环境中的腐蚀行为和保护性质.
为了将薄膜形态和结构与腐蚀性能相关联.

主要方法:

用优化的参数对 (Ti) 进行电化学解.
使用扫描电子显微镜 (SEM),能量分散式X射线光谱 (EDS),X射线衍射 (XRD) 和X射线光电子光谱 (XPS) 的表征.
在腐蚀性电解质 (Na2SO4与H2O2) 中进行电化学阻抗光谱 (EIS) 和极化研究.

主要成果:

成功地制造了具有60-70nm孔径和2-3μm厚度的均纳米多孔TiO2薄膜.
确认了解剖酶TiO2阶段,通过去除化物来增强氧化物的纯度.
与未经处理的Ti相比,化Ti具有显著改善的耐腐蚀性,稳定的被动化和降低的腐蚀率.
多孔TiO2膜在氧化条件下表现出有利的电容性行为和化学稳定性.

结论:

通过无氧化设计的纳米孔状TiO2薄膜提供了有效的防腐保护.
2的多孔结构和化学稳定性有助于增强耐腐蚀性.
这些发现支持纳米孔径TiO2在生物医学设备和先进材料等苛刻应用中的使用.

更多相关视频

Applying Dynamic Strain on Thin Oxide Films Immobilized on a Pseudoelastic Nickel-Titanium Alloy

Applying Dynamic Strain on Thin Oxide Films Immobilized on a Pseudoelastic Nickel-Titanium Alloy

Published on: July 28, 2020

Synthesis and Reaction Chemistry of Nanosize Monosodium Titanate

Synthesis and Reaction Chemistry of Nanosize Monosodium Titanate

Published on: February 23, 2016

相关概念视频

Corrosion

Corrosion

The degradation of metals due to natural electrochemical processes is known as corrosion. Rust formation on iron, tarnishing of silver, and the blue-green patina that develops on copper are examples of corrosion. Corrosion involves the oxidation of metals. Sometimes it is protective, such as the oxidation of copper or aluminum, wherein a protective layer of metal oxide or its derivatives forms on the surface, protecting the underlying metal from further oxidation. In other cases, corrosion is...

Corrosion of Reinforcement

Corrosion of Reinforcement

The corrosion of steel reinforcement within concrete is a process influenced by the material's inherent properties and external factors. The high pH level of around 13, provided by calcium hydroxide present in concrete, initially protects the steel reinforcement by promoting the formation of a passive iron oxide layer on its surface.
However, over time and under certain conditions like carbonation, chloride ingress, and cracking this protective state can be compromised. Steel has areas with...