Cetyltrimethyl Ammonium Bromide as Corrosion Inhibitor for Zinc Used in Hydrochloric Acid

International Conference on Computer Information and Automation Engineering

计算机科学;运输工程

Sun, C.X.^1,2 ; Du, J.J.^1 ; Ma, Z.W.^1 ; Huang, C.S.^2 ; Wu, J.Y.^2

College of Mechanical and Electrical Engineering, Qing Dao Binhai University, West Jialingjiang Road, Development Zone of Qingdao, Shandong

266555, China^1

Institute of Energy Research, Henan Academy of Science, No.29 Garden Road, Zhengzhou

450008, China^2

关键词: Cetyl trimethyl ammonium bromides;    Cetyltrimethylammonium bromide;    Compound inhibitors;    Concentration ratio;    Coupon tests;    Impedance spectrum;    Negative shift;    One-time;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/359/1/012024/pdf
DOI  :  10.1088/1757-899X/359/1/012024

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

A compound inhibitor composed of cetyltrimethyl ammonium bromide (CTAB) and bromohexadecyl pyridine was tested as corrosion inhibitor for zinc in hydrochloric acid. The results of static coupon test show that the compound inhibitor can effectively protect zinc from corrosion and the best concentration ratio is CTAB 50 mg/L and bromohexadecyl pyridine 200 mg/L. The polarization results show that the compound inhibitor will cause a negative shift of E0 of zinc in hydrochloric acid. The EIS (electrchemical impedance spectra) results show that the inhibitor leads to a bigger radius and has one time constant. SEM results show that the CTAB and bromohexadecyl pyridine form a uniform and compact membrane on the surface of zinc that can protect zinc from corroding effectively.