Studies on adsorption and corrosion inhibitive properties of quinoline derivatives on N80 steel in 15% hydrochloric acid

被引：29

作者：

Ansari, K. R. ^{[1
]}

Ramkumar, Sowmya ^{[2
]}

Nalini, D. ^{[2
]}

Quraishi, M. A. ^{[1
]}

机构：

[1] Banaras Hindu Univ, Dept Chem, Indian Inst Technol, Varanasi 221005, Uttar Pradesh, India

[2] PSGR Krishnammal Coll Women, Dept Chem, Coimbatore 641004, Tamil Nadu, India

来源：

COGENT CHEMISTRY | 2016年 / 2卷

关键词：

N80; steel; EIS; SEM; acid corrosion;

D O I：

10.1080/23312009.2016.1145032

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

This paper deals with the N80 steel corrosion protection study in 15% HCl which was carried by three quinoline derivatives namely 3-acetyl-1-(4-methylbenzylideneamino) quinolin-2-one (AQ-1), 3-acetyl-1-(4 hydroxy benzylideneamino) quinolin-2-one (AQ-2), 3-acetyl-1-(3-nitrobenzylideneamino) quinolin-2(1H)-one (AQ-3) using gravimetric, electrochemical, and quantum chemical studies. Tafel polarization showed that AQs are mixed type inhibitors but dominantly affect cathodic reaction more. The observed results reveal that AQ-1 is the best inhibitor. All the three inhibitors were found to obey the Langmuir adsorption isotherm. Scanning electron microscopy (SEM) micrographs supports the protection of the N80 steel by AQs. Quantum chemical study reveals that the inhibitors have a tendency to get protonated and this protonated form has greater tendency to get adsorbed onto the N80 steel surface.

引用

页数：15

共 24 条

[1] A study of the inhibition of iron corrosion in HCl solutions by some amino acids [J].

Amin, Mohammed A. ;

Khaled, K. F. ;

Mohsen, Q. ;

Arida, H. A. .

CORROSION SCIENCE, 2010, 52 (05) :1684-1695

[2] Pyridine derivatives as corrosion inhibitors for N80 steel in 15% HCl: Electrochemical, surface and quantum chemical studies [J].

Ansari, K. R. ;

Quraishi, M. A. ;

Singh, Ambrish .

MEASUREMENT, 2015, 76 :136-147

[3] Experimental and quantum chemical evaluation of Schiff bases of isatin as a new and green corrosion inhibitors for mild steel in 20% H2SO4 [J].

Ansari, K. R. ;

Quraishi, M. A. .

JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS, 2015, 54 :145-154

[4] Corrosion inhibition of mild steel in hydrochloric acid by some pyridine derivatives: An experimental and quantum chemical study [J].

Ansari, K. R. ;

Quraishi, M. A. ;

Singh, Ambrish .

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, 2015, 25 :89-98

[5] Isatin derivatives as a non-toxic corrosion inhibitor for mild steel in 20% H2SO4 [J].

Ansari, K. R. ;

Quraishi, M. A. ;

Singh, Ambrish .

CORROSION SCIENCE, 2015, 95 :62-70

[6] Experimental and computational studies of naphthyridine derivatives as corrosion inhibitor for N80 steel in 15% hydrochloric acid [J].

Ansari, K. R. ;

Quraishi, M. A. .

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2015, 69 :322-331

[7] Bis-Schiff bases of isatin as new and environmentally benign corrosion inhibitor for mild steel [J].

Ansari, K. R. ;

Quraishi, M. A. .

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, 2014, 20 (05) :2819-2829

[8] Schiff's base of pyridyl substituted triazoles as new and effective corrosion inhibitors for mild steel in hydrochloric acid solution [J].

Ansari, K. R. ;

Quraishi, M. A. ;

Singh, Ambrish .

CORROSION SCIENCE, 2014, 79 :5-15

[9]

Ansari KR, 2012, INT J ELECTROCHEM SC, V7, P4780

[10]

Ansari KR, 2015, ANAL BIOANAL ELECTRO, V7, P509

← 1 2 3 →