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	Some new triazole derivatives as inhibitors for mild steel corrosion in acidic medium
	Li, Wei-hua1; He, Qiao2; Zhang, Sheng-tao2; Pei, Chang-ling3; Hou, Bao-rong1
刊名	JOURNAL OF APPLIED ELECTROCHEMISTRY
	2008-03-01
卷号	38期号:3页码:289-295
关键词	Triazole Derivative Acid Inhibitor Potentiodynamic Polarization Eis Langmuir Adsorption Isotherm
ISSN号	0021-891X
DOI	10.1007/s10800-007-9437-7
文献子类	Article
英文摘要	Two triazole derivatives, 3,4-dichloro-acetophenone-O-1'-(1',3',4'-triazolyl)-methaneoxime (4-DTM) and 2,5-dichloro-acetophenone-O-1'-(1',3',4'-triazolyl)-methaneoxime (5-DTM) were synthesized, and the inhibition effects for mild steel in 1 M HCl solutions were investigated by weight loss measurements, electrochemical tests and scanning electronic microscopy (SEM). The weight loss measurements showed that these compounds have excellent inhibiting effect at a concentration of 1.0 x 10(-3) M. The potentiodynamic polarization experiment revealed that the triazole derivatives are inhibitors of mixed-type and electrochemical impedance spectroscopy (EIS) confirmed that changes in the impedance parameters (R-ct and C-dl) are due to surface adsorption. The inhibition efficiencies obtained from weight loss measurements and electrochemical tests were in good agreement. Adsorption followed the Langmuir isotherm with negative values of the free energy of adsorption Delta G(ads)(o). The thermodynamic parameters of adsorption were determined and are discussed. Results show that both 4-DTM and 5-DTM are good inhibitors for mild steel in acid media.; Two triazole derivatives, 3,4-dichloro-acetophenone-O-1'-(1',3',4'-triazolyl)-methaneoxime (4-DTM) and 2,5-dichloro-acetophenone-O-1'-(1',3',4'-triazolyl)-methaneoxime (5-DTM) were synthesized, and the inhibition effects for mild steel in 1 M HCl solutions were investigated by weight loss measurements, electrochemical tests and scanning electronic microscopy (SEM). The weight loss measurements showed that these compounds have excellent inhibiting effect at a concentration of 1.0 x 10(-3) M. The potentiodynamic polarization experiment revealed that the triazole derivatives are inhibitors of mixed-type and electrochemical impedance spectroscopy (EIS) confirmed that changes in the impedance parameters (R-ct and C-dl) are due to surface adsorption. The inhibition efficiencies obtained from weight loss measurements and electrochemical tests were in good agreement. Adsorption followed the Langmuir isotherm with negative values of the free energy of adsorption Delta G(ads)(o). The thermodynamic parameters of adsorption were determined and are discussed. Results show that both 4-DTM and 5-DTM are good inhibitors for mild steel in acid media.
学科主题	Electrochemistry
URL标识	查看原文
语种	英语
WOS记录号	WOS:000254089600003
公开日期	2010-12-24
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/5171]
专题	海洋研究所_海洋腐蚀与防护研究发展中心
作者单位	1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Chongqing Univ, Coll Chem & Chem Engn, Chongqing 400044, Peoples R China 3.Qingdao Technol Univ, Sch Civil Engn, Qingdao 266033, Peoples R China
推荐引用方式 GB/T 7714	Li, Wei-hua,He, Qiao,Zhang, Sheng-tao,et al. Some new triazole derivatives as inhibitors for mild steel corrosion in acidic medium[J]. JOURNAL OF APPLIED ELECTROCHEMISTRY,2008,38(3):289-295.
APA	Li, Wei-hua,He, Qiao,Zhang, Sheng-tao,Pei, Chang-ling,&Hou, Bao-rong.(2008).Some new triazole derivatives as inhibitors for mild steel corrosion in acidic medium.JOURNAL OF APPLIED ELECTROCHEMISTRY,38(3),289-295.
MLA	Li, Wei-hua,et al."Some new triazole derivatives as inhibitors for mild steel corrosion in acidic medium".JOURNAL OF APPLIED ELECTROCHEMISTRY 38.3(2008):289-295.

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