Preparation of hydrophobic silane/graphene oxide composite coating implanted with benzotriazole to improve the anti-corrosion performance of copper

被引：40
|
作者：
Chen, Y. [1 ,2 ]
Liu, Y. W. [2 ]
Xie, Y. [2 ]
Zhang, H. H. [2 ]
Du, X. Q. [1 ]
Zhang, Z. [3 ]
机构：
[1] Foshan Univ, Sch Mat Sci & Energy Engn, Foshan 528000, Guangdong, Peoples R China
[2] Binzhou Univ, Dept Chem Engn & Safety, Binzhou 256600, Shandong, Peoples R China
[3] Zhejiang Univ, Dept Chem, Hangzhou 310027, Zhejiang, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2022年 / 893卷
基金：
中国国家自然科学基金;
关键词：
Copper; Graphene oxide; Benzotriazole; Corrosion; ONE-STEP ELECTRODEPOSITION; HYBRID SILANE COATINGS; IN-SITU STM; GRAPHENE OXIDE; CORROSION PROTECTION; MILD-STEEL; SUPERHYDROPHOBIC COPPER; HYDROCHLORIC-ACID; FILMS; SURFACE;
D O I：
10.1016/j.jallcom.2021.162305
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Hydrophobic silane/graphene oxide (GO) composite coating implanted with BTAH inhibitor (BTAH-silane/ GO) was successfully fabricated on copper surface, and characterized using ATR-FTIR, Raman, EDS, XPS and EIS techniques. The results showed that GO was successfully covalently reacted with the silanol groups to form a Si-O-C band and BTAH inhibitor was uniformly embedded in the composite coating. The BTAHsilane/GO coated copper possessed the desirable high impedance modulus (Z(0.01 Hz)) of 5.7 M Omega cm(2) and high protection efficiency of 99.97%. The corrosion current density of the coated copper reduced over 3 orders of magnitude compared to its bare in 1 M neutral NaCl solution, and maintained over 99% even after 120 h immersion. In addition, the incorporated BTAH inhibitor exhibited the self-healing performance of BTAH-silane/GO coating in 1 M neutral NaCl solution. (C) 2021 Elsevier B.V. All rights reserved.
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页数：12
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