L-cysteine/polydopamine nanoparticle-coatings for copper corrosion protection
L-cysteine/polydopamine nanoparticle-coatings for copper corrosion protection
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DOI：
10.1016/j.corsci.2014.11.011
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发表时间：
2015-02-01
影响因子：
8.3
通讯作者：
Macdonald, Digby D.
中科院分区：
文献类型：
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作者：
Ghelichkhah, Zahed;Sharifi-Asl, Samin;Macdonald, Digby D.
采用两步法成功地在铜表面制备了聚多巴胺（PDA）涂层。在第一阶段中，为了提高PDA在铜表面的附着力，L-半胱氨酸的自组装单层沉积在裸铜上。然后，通过盐酸多巴胺在L-半胱氨酸包覆的铜表面上的化学吸附和自聚合来制备PDA涂层。采用动电位极化法和电化学阻抗法研究了L-半胱氨酸和PDA膜在3.5%NaCl水溶液中的缓蚀行为。它表明，L-半胱氨酸/PDA涂层提供了显着的保护对铜腐蚀。(C)2014爱思唯尔有限公司版权所有。
Polydopamine (PDA) coating on a copper surface was successfully prepared using a two-step process. In the first stage, in order to improve the adhesion of PDA on the copper surface, a self-assembled monolayer of L-cysteine was deposited on a bare copper. Thereafter, the PDA coating was fabricated through the chemical adsorption and auto-polymerization of the dopamine hydrochloride on the L-cysteine-coated copper surface. The inhibitory behavior of L-cysteine and PDA films has been investigated in aqueous 3.5% NaCl solution using potentiodynamic polarization and electrochemical impedance spectroscopy. It is demonstrated that the L-cysteine/PDA coating provides significant protection against copper corrosion. (C) 2014 Elsevier Ltd. All rights reserved.