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Tanuj Joshi¹, R K Singh Raman¹, Yiannis Ventikos¹

¹Department of Mechanical and Aerospace Engineering, Monash University, Clayton 3800, Australia.

Nanomaterials (Basel, Switzerland)

|February 26, 2026

概括

在上的多层石墨烯涂层显著提高了高性溶液中的耐腐蚀性. 强大的石墨烯涂层 (Gr_Ni) 保持了高达80天的优越保护,与不那么强大的薄膜不同.

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:

对于有毒环境至关重要,但其被动薄膜限制了使用寿命.
石墨烯作为腐蚀屏障具有前景,但其在性介质中的长期性能尚未得到充分研究.
以前的研究主要集中在短期或非性条件.

研究的目的:

在高腐蚀环境 (0.5M NaOH) 中长时间 (长达80天) 系统评估上的多层石墨烯 (MLG) 涂层.
为了比较坚固的符合MLG涂层 (Gr_Ni) 和不那么坚固的薄膜 (Gr_Ni_DF) 与裸的耐腐蚀性.
在长时间性浸泡下研究石墨烯涂层的长期耐用性和结构稳定性.

主要方法:

低压化学蒸汽沉积 (CVD) 在上生长多层石墨烯.
潜在动力学极化 (PDP) 和电化学阻抗光谱 (EIS) 用于腐蚀评估.
扫描电子显微镜 (SEM) 用于涂层和未涂层的形态分析.

主要成果:

强大的Gr_Ni涂层在抗腐蚀性方面提供了初始的2级增强,在80天后保持了1.3-1.5级的优势.
较不坚固的Gr_Ni_DF涂层呈现逐渐的降解,随着时间的推移只提供了适度的双倍效益.
在长时间的性暴露下,SEM证实了Gr_Ni的结构完整性优于Gr_Ni_DF和裸.

结论:

合规的多层石墨烯涂层为高性介质中的提供了特殊的长期腐蚀保护.
涂层的强度和结构完整性是在恶劣环境中持续性能的关键因素.
这项研究强调了石墨烯在苛刻的工业应用中作为耐用屏障的潜力.

关键词:

0.5 M NaOH 的含量可能是0.5 M NaOH.耐腐蚀性耐腐蚀性耐腐蚀性石墨烯涂料的涂层多层石墨烯 (MLG) 是一种多层石墨烯.时间依赖的电化学试验.

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