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钢板上的显著耐腐蚀的石墨烯涂层通过金定制使其成为可能
R K Singh Raman1,2, A Sanjid1, Parama Chakraborty Banerjee1
1Department of Chemical & Biological Engineering, Monash University, Victoria, 3800, Australia.
Small (Weinheim an der Bergstrasse, Germany)
|June 13, 2023
概括
研究人员开发了一种新的表面修饰方法,可以在温钢上涂上石墨烯涂层,显著提高其抗腐蚀性. 这一突破为这种常见的工程合金提供了对攻击性环境的长期保护.
科学领域:
- 材料科学 材料科学 材料科学
- 腐蚀工程 腐蚀工程
- 表面化学 表面化学
背景情况:
- 石墨烯涂层具有特殊的屏障性能,可以提高和铜等金属的耐腐蚀性,高达100倍.
- 由于技术限制,将化学蒸汽沉积 (CVD) 石墨烯应用于温钢 (MS) 具有挑战性.
- 之前的尝试,比如用电MS,然后用CVD,在实现持久的石墨烯涂层方面没有成功.
研究的目的:
- 为了克服CVD石墨烯涂层直接应用于温钢的挑战.
- 开发一种创新的表面修饰技术,以在温钢上成功涂上石墨烯涂层.
- 为了评估CVD石墨烯保护的温钢的增强耐腐蚀性.
主要方法:
- 基于金原理,开发了一种创新的温钢表面改造.
- 化学蒸汽沉积 (CVD) 用于将石墨烯涂在改造的温钢表面上.
- 使用电化学测试来评估化物溶液中的耐腐蚀性.
主要成果:
- 开发的表面修改使得在温钢上涂上石墨烯涂层的成功CVD成为可能.
- 涂上石墨烯的温钢在耐腐蚀性方面表现出两级的改善.
- 这种增强的耐腐蚀性持续超过1000小时,表明潜在的永久保护.
结论:
- 这种创新的表面修饰是一种可行的方法,可以将CVD石墨烯应用于温钢.
- 这种技术显著提高了温钢在恶劣环境中的耐用性和耐腐蚀性.
- 表面修改的通用性可能使其他具有挑战性的合金系统上能够涂上石墨烯涂层.
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