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Citation: XU Qun-Jie, WAN Zong-Yue, YIN Ren-He, ZHU Lu-Jun, CAO Wei-Min, ZHOU Guo-Ding, LIN Chang-Jian. Inhibition Action of the Self-Assembled Monolayers of 3-Amino-1,2,4-triazole on Brass[J]. Acta Physico-Chimica Sinica, ;2008, 24(01): 115-120. doi: 10.3866/PKU.WHXB20080120 shu

Inhibition Action of the Self-Assembled Monolayers of 3-Amino-1,2,4-triazole on Brass

1.
Key Laboratory of State Power Corporation of China in Corrosion and Protection for Thermal Power Equipments, Department of Environment Engieering, Shanghai University of Electric Power, Shanghai 200090, P. R. China; Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, P. R. China; 3State Key Laboratory of Solid Surface Physical Chemistry, Xiamen University, Xiamen 361005, Fujian Province, P. R. China

Received Date: 29 June 2007
Available Online: 10 October 2007

The anticorrosion and inhibiting mechanism for the self-assembled monolayers (SAMs) of 3-amino-1,2,4-triazole (ATA) on the surface of brass had been investigated by electrochemical method, as well as its adsorption behavior. The results indicated that ATA was liable to interact with brass forming SAMs on the surface of brass. The SAMs changed the structure of the electric-double layer. The SAMs restrained the process of anodic oxidation and had well anticorrosion effect. It was in od agreement with the results by EIS and polarization curve methods. The results from electrochemical measurements indicated that the corrosion resistance for brass electrode was improved by the ATASAMs. Adsorption of the ATASAMs was found to followthe Langmuir’s adsorption isotherm, and the adsorption mechanismwas typical chemisorption.
- Brass; ATA; SAMs; Anticorrosion; Adsorption
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