聚乙烯亚胺功能化氧化石墨烯：盐酸环境中铜腐蚀的一种有前景的抑制剂。
Polyethyleneimine Functionalized Graphene Oxide: A Promising Inhibitor for Corrosion of Copper in the Hydrochloric Acid Environment.
机构信息
Center of Research Excellence in Corrosion, Research Institute, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia.
Department of Chemistry, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia.
出版信息
J Nanosci Nanotechnol. 2021 Jun 1;21(6):3256-3268. doi: 10.1166/jnn.2021.19308.
Polyethyleneimine functionalized graphene oxide (PEI-GO) was prepared and characterized for its molecular structure and morphology. The PEI-GO is, for the first time, reported as an inhibitor against copper (Cu) corrosion in 0.5 M HCl using electrochemical studies. PEI-GO acts as a promising corrosion inhibitor for Cu with 92.24% efficiency at 100 mgL. The PDP studies reveal a mixed type of inhibitor behavior of PEI-GO with cathodic prevalence. Cyclic voltammetry revealed the inhibition influence of PEI-GO on the redox process of Cu corrosion. SEM and FTIR-ATR studies showed the creation of a protective layer on the Cu substrate. DFT studies revealed that the PEIGO exhibits better reactivity compared to parent PEI, and Monte Carlo simulations showed higher adsorption energy for PEI-GO on the Cu surface compared to the PEI.
聚乙烯亚胺功能化氧化石墨烯（PEI-GO）被制备并对其分子结构和形态进行了表征。首次报道了 PEI-GO 作为铜（Cu）在 0.5 M HCl 中腐蚀的抑制剂，采用电化学研究。PEI-GO 作为 Cu 的一种很有前途的腐蚀抑制剂，在 100mg/L 时效率为 92.24%。PDP 研究表明，PEI-GO 具有混合抑制行为，阴极占主导地位。循环伏安法显示了 PEI-GO 对 Cu 腐蚀氧化还原过程的抑制影响。SEM 和 FTIR-ATR 研究表明在 Cu 基底上形成了一层保护层。DFT 研究表明，与母体 PEI 相比，PEIGO 表现出更好的反应性，蒙特卡罗模拟显示 PEI-GO 在 Cu 表面上的吸附能高于 PEI。
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