Gravimetric, electrochemical and surface studies on the anticorrosive properties of 1-(2-pyridyl)-2-thiourea and 2-(imidazol-2-yl)-pyridine for mild steel in hydrochloric acid
被引:112
作者:
Zhang, Weiwei
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Harbin Inst Technol, Sch Marine Sci & Technol, Weihai 264209, Peoples R ChinaHarbin Inst Technol, Sch Marine Sci & Technol, Weihai 264209, Peoples R China
Zhang, Weiwei
[1
]
Li, Hui-Jing
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Harbin Inst Technol, Sch Marine Sci & Technol, Weihai 264209, Peoples R ChinaHarbin Inst Technol, Sch Marine Sci & Technol, Weihai 264209, Peoples R China
Li, Hui-Jing
[1
]
Wang, Yiwei
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Harbin Inst Technol, Sch Marine Sci & Technol, Weihai 264209, Peoples R ChinaHarbin Inst Technol, Sch Marine Sci & Technol, Weihai 264209, Peoples R China
Wang, Yiwei
[1
]
Liu, Ying
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Harbin Inst Technol, Sch Marine Sci & Technol, Weihai 264209, Peoples R ChinaHarbin Inst Technol, Sch Marine Sci & Technol, Weihai 264209, Peoples R China
Liu, Ying
[1
]
Gu, Qing-Ze
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Harbin Inst Technol, Sch Marine Sci & Technol, Weihai 264209, Peoples R ChinaHarbin Inst Technol, Sch Marine Sci & Technol, Weihai 264209, Peoples R China
Gu, Qing-Ze
[1
]
Wu, Yan-Chao
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Harbin Inst Technol, Sch Marine Sci & Technol, Weihai 264209, Peoples R ChinaHarbin Inst Technol, Sch Marine Sci & Technol, Weihai 264209, Peoples R China
Wu, Yan-Chao
[1
]
机构:
[1] Harbin Inst Technol, Sch Marine Sci & Technol, Weihai 264209, Peoples R China
GREEN CORROSION-INHIBITOR;
SCHIFF-BASE COMPOUNDS;
2;
ORGANIC-COMPOUNDS;
M HCL SOLUTION;
CARBON-STEEL;
PYRIDINE-DERIVATIVES;
N80;
STEEL;
ENVIRONMENTS;
EXTRACT;
MEDIA;
D O I:
10.1039/c8nj01762j
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
1-(2-Pyridyl)-2-thiourea (TP) and 2-(imidazol-2-yl)-pyridine (IP) are described here for the first time as inhibitors of mild steel corrosion in acidic medium based on investigations such as weight loss tests, potentiodynamic polarization measurements and electrochemical impedance spectroscopy (EIS). The experimental results revealed that 1-(2-pyridyl)-2-thiourea and 2-(imidazol-2-yl)-pyridine are effective corrosion inhibitors for mild steel in acidic medium, and their maximum corrosion inhibition efficiencies at 4 x 10(-4) M are 93.57% and 96.66%, respectively. TP and IP are determined as mixed-type inhibitors based on polarization studies, and their adsorption on the mild steel surface follows the Langmuir adsorption isotherm and physical adsorption is dominant. The formation and characteristics of the protective layer on the steel surface were verified by scanning electrochemical microscopy (SECM), UV-visible spectroscopy, FT-IR spectroscopy and X-ray photoelectron spectroscopy (XPS) methods. Besides, the correlation between the inhibition efficiency and the molecular structure of inhibitors was theoretically studied via quantum chemical calculations.
机构:
Univ Fed Rural Rio Janeiro, Inst Ciencia Exatas, Dept Quim, BR-2389000 Rio De Janeiro, BrazilUniv Fed Rural Rio Janeiro, Inst Ciencia Exatas, Dept Quim, BR-2389000 Rio De Janeiro, Brazil
Albuquerque, Mariana A.
;
de Oliveira, Marcia C. C.
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Univ Fed Rural Rio Janeiro, Inst Ciencia Exatas, Dept Quim, BR-2389000 Rio De Janeiro, BrazilUniv Fed Rural Rio Janeiro, Inst Ciencia Exatas, Dept Quim, BR-2389000 Rio De Janeiro, Brazil
de Oliveira, Marcia C. C.
;
Echevarria, Aurea
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Univ Fed Rural Rio Janeiro, Inst Ciencia Exatas, Dept Quim, BR-2389000 Rio De Janeiro, BrazilUniv Fed Rural Rio Janeiro, Inst Ciencia Exatas, Dept Quim, BR-2389000 Rio De Janeiro, Brazil
机构:
Anna Univ, Dept Chem, Madras 600025, Tamil Nadu, IndiaAnna Univ, Dept Chem, Madras 600025, Tamil Nadu, India
Baskar, R.
;
Gopiraman, M.
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机构:
Shinshu Univ, Nano Fus Technol Res Grp, Dept Funct Machinery & Mech, Fac Text Sci & Technol, Nagano 3868567, Japan
Natl Inst Technol, Dept Chem, Tiruchirappalli, Tamil Nadu, IndiaAnna Univ, Dept Chem, Madras 600025, Tamil Nadu, India
Gopiraman, M.
;
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机构:
Kesavan, D.
;
Kim, Ick Soo
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机构:
Shinshu Univ, Nano Fus Technol Res Grp, Dept Funct Machinery & Mech, Fac Text Sci & Technol, Nagano 3868567, JapanAnna Univ, Dept Chem, Madras 600025, Tamil Nadu, India
Kim, Ick Soo
;
Subramanian, K.
论文数: 0引用数: 0
h-index: 0
机构:
Anna Univ, Dept Chem, Madras 600025, Tamil Nadu, IndiaAnna Univ, Dept Chem, Madras 600025, Tamil Nadu, India
机构:
Univ Fed Rural Rio Janeiro, Inst Ciencia Exatas, Dept Quim, BR-2389000 Rio De Janeiro, BrazilUniv Fed Rural Rio Janeiro, Inst Ciencia Exatas, Dept Quim, BR-2389000 Rio De Janeiro, Brazil
Albuquerque, Mariana A.
;
de Oliveira, Marcia C. C.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Fed Rural Rio Janeiro, Inst Ciencia Exatas, Dept Quim, BR-2389000 Rio De Janeiro, BrazilUniv Fed Rural Rio Janeiro, Inst Ciencia Exatas, Dept Quim, BR-2389000 Rio De Janeiro, Brazil
de Oliveira, Marcia C. C.
;
Echevarria, Aurea
论文数: 0引用数: 0
h-index: 0
机构:
Univ Fed Rural Rio Janeiro, Inst Ciencia Exatas, Dept Quim, BR-2389000 Rio De Janeiro, BrazilUniv Fed Rural Rio Janeiro, Inst Ciencia Exatas, Dept Quim, BR-2389000 Rio De Janeiro, Brazil
机构:
Anna Univ, Dept Chem, Madras 600025, Tamil Nadu, IndiaAnna Univ, Dept Chem, Madras 600025, Tamil Nadu, India
Baskar, R.
;
Gopiraman, M.
论文数: 0引用数: 0
h-index: 0
机构:
Shinshu Univ, Nano Fus Technol Res Grp, Dept Funct Machinery & Mech, Fac Text Sci & Technol, Nagano 3868567, Japan
Natl Inst Technol, Dept Chem, Tiruchirappalli, Tamil Nadu, IndiaAnna Univ, Dept Chem, Madras 600025, Tamil Nadu, India
Gopiraman, M.
;
论文数: 引用数:
h-index:
机构:
Kesavan, D.
;
Kim, Ick Soo
论文数: 0引用数: 0
h-index: 0
机构:
Shinshu Univ, Nano Fus Technol Res Grp, Dept Funct Machinery & Mech, Fac Text Sci & Technol, Nagano 3868567, JapanAnna Univ, Dept Chem, Madras 600025, Tamil Nadu, India
Kim, Ick Soo
;
Subramanian, K.
论文数: 0引用数: 0
h-index: 0
机构:
Anna Univ, Dept Chem, Madras 600025, Tamil Nadu, IndiaAnna Univ, Dept Chem, Madras 600025, Tamil Nadu, India