Effects of 1-pyrrolidinedithiocarbamate and 2,5-dimercapto-1,3,4-thiadiazole on lead corrosion behavior in chloride medium

被引：0

作者：

Qafsaoui, W. ^{[1
]}

Taouil, A. Et ^{[2
]}

Tran, T. T. M. ^{[3
]}

Cachet, H. ^{[3
]}

Joiret, S. ^{[3
]}

机构：

[1] Univ Chouaib Doukkali, Fac Sci El Jadida, BP 20, El Jadida 24000, Morocco

[2] Univ Franche Comte, Inst UTINAM, CNRS, UMR 6213, 30 Ave Observ, F-25009 Besancon, France

[3] Sorbonne Univ, CNRS, Lab Interfaces & Syst Electrochim, LISE, F-75005 Paris, France

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2023年 / 940卷

关键词：

Organic coatings; Polarization; EIS; Surface characterization; Neutral inhibition; CHEMICAL MECHANISMS; FILM THICKNESS; INHIBITION; WATER; ACID; SURFACE; DISSOLUTION; CHEMISTRY; IMPEDANCE; KINETICS;

D O I：

10.1016/j.jelechem.2023.117501

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The adsorption and corrosion protection of 1-pyrrolidinedithiocarbamate (PDTC) and 2,5-dimercapto-1,3,4thiadiazole (DMTD) on bare Pb were investigated. Surface analyses revealed that for high concentration (i.e 10 mM), the organic molecules are strongly adsorbed on Pb surface. In 30 g.L-1 NaCl, Pb corrosion current was highly decreased and anodic passivation was very efficient. EIS measurements and simulations enabled to evaluate organic films thickness, anodic charge transfer resistance Rta and metal/film interface resistivity rho 0. Efficient Pb corrosion protection was confirmed. Results obtained from Young and power law models showed that EIS parameters are not much dependent on the chosen analytical expression.

引用

页数：11

共 50 条

[1] Inhibition effects of 2,5-dimercapto-1,3,4-thiadiazole on the corrosion of mild steel in sulphuric acid solution
Chen, Wen
Luo, Hong Qun
Li, Nian Bing
CORROSION SCIENCE, 2011, 53 (10) : 3356 - 3365
[2] Corrosion inhibition of copper by 2,5-dimercapto-1,3,4-thiadiazole monolayer in acidic solution
Qin, Ting Ting
Li, Jun
Luo, Hong Qun
Li, Ming
Li, Nian Bing
CORROSION SCIENCE, 2011, 53 (03) : 1072 - 1078
[3] Electrochemical study of 2,5-dimercapto-1,3,4-thiadiazole in acetonitrile
Picart, S
Genies, E
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1996, 408 (1-2): : 53 - 60
[4] Kinetic investigation of the alkylation of salts of 2,5-dimercapto-1,3,4-thiadiazole
Kuodis Z.
Rutavichyus A.
Valiulene S.
Chemistry of Heterocyclic Compounds, 2000, 36 (07) : 857 - 861
[5] Corrosion protection of bronze using 2,5-dimercapto-1,3,4-thiadiazole as organic inhibitor: spectroscopic and electrochemical investigations
Qafsaoui, W.
Taouil, A. Et
Kendig, M. W.
Heintz, O.
Cachet, H.
Joiret, S.
Takenouti, H.
JOURNAL OF APPLIED ELECTROCHEMISTRY, 2019, 49 (08) : 823 - 837
[6] Corrosion protection of bronze using 2,5-dimercapto-1,3,4-thiadiazole as organic inhibitor: spectroscopic and electrochemical investigations
W. Qafsaoui
A. Et Taouil
M. W. Kendig
O. Heintz
H. Cachet
S. Joiret
H. Takenouti
Journal of Applied Electrochemistry, 2019, 49 : 823 - 837
[7] Corrosion Inhibition of Brazing Cu-Ag Alloy with 1,2,3-Benzotriazole and 2,5-Dimercapto-1,3,4-Thiadiazole
Rahmani, Hooman
Meletis, Efstathios, I
CORROSION, 2021, 77 (01) : 29 - 39
[8] Separation of copper-lead using 2,5-dimercapto-1,3,4-thiadiazole as chalcopyrite depressant: Adsorption and hydrophilicity studies
Zhao, Lv
Chen, Jiaxiu
Su, Chao
Lai, Hao
Shen, Peilun
Cai, Jinpeng
Liu, Dianwen
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2024, 702
[9] 2,5-Dimercapto-1,3,4-Thiadiazole Tethered γ-Propylsilatrane: Syntheses, Characterization, UV-Vis and Electrochemical Studies
Singh, Gurjaspreet
Girdhar, Shally
Singh, Akshpreet
Saroa, Amandeep
Satija, Pinky
Verma, Vikas
Singh, Jasbhinder
SILICON, 2019, 11 (06) : 2583 - 2589
[10] A study of 2,5-dimercapto-1,3,4-thiadiazole derivatives as multifunctional additives in water-based hydraulic fluid
Wang, Junming
Wang, Jianhua
Li, Chunsheng
Zhao, Gaiqing
Wang, Xiaobo
INDUSTRIAL LUBRICATION AND TRIBOLOGY, 2014, 66 (03) : 402 - 410

← 1 2 3 4 5 →