酸性介质中新型三唑类缓蚀剂在碳钢上的吸附行为
Adsorption Behaviour of New Triazole Derivative as Inhibitor on Mild Steel in Acid Medium
摘 要
合成了一种新型三唑衍生物:苯戊酮-O-1-(1.3.4-三氮唑)亚甲基肟(POTM),通过失重试验、交流阻抗、动电位极化研究了其在酸性介质中的缓蚀效率,并用扫描电镜方法观察了碳钢表面的腐蚀形貌.对热力学参数进行了讨论,表明化合物在碳钢表面上的吸附行为服从Langmuir吸附等温式.同时用量子化学中的从头算方法对缓蚀剂的分子结构与缓蚀性能的关系进行了研究.
缓蚀剂
电化学实验
Langmuir吸附等温式
量子化学计算
triazole derivative
inhibitor
electrochemical experiment
Langmuir adsorption isotherm
quantum chemistry calculation
Abstract
Pentanophenone-O-1-(1.3.4- triazolyl)-metheneoxime(POTM) has been synthesized as a new corrosion inhibitor of mild steel in acid media.The inhibition efficiency was evaluated by means of weight loss,electrochemical impedance spectroscopy (EIS) and polarization curves.The surface morphology was studied by scanning electron microscopy (SEM).The thermodynamic parameters were determined and discussed.The relationship between molecular structure of the compound and the inhibition efficiency was investigated by ab initio quantum chemistry calculations.The adsorption of triazole derivatives was found to obey Langmuir adsorption isotherm.
中图分类号 TG174.42 O647
所属栏目 试验研究
基金项目
收稿日期 2007/6/15
修改稿日期 2007/7/7
网络出版日期
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引用该论文: HE Qiao,ZHANG Sheng-tao,LI Wei-hua,PEI Chang-ling,HOU Bao-rong. Adsorption Behaviour of New Triazole Derivative as Inhibitor on Mild Steel in Acid Medium[J]. Corrosion & Protection, 2008, 29(5): 243～246
被引情况:
【1】李克华,兰志威,杨冰冰,石东坡, "HJ曼尼希碱缓蚀剂的合成及其性能",腐蚀与防护 37, 467-471(2016)
【2】苏铁军,李克华,罗运柏,习伟, "盐酸介质中APPB对A3钢的缓蚀作用",腐蚀与防护 36, 629-634(2015)
【3】方晓君,张娟涛,陈长风,白真权,张国超, "新型Schiff碱缓蚀剂的研究进展",腐蚀与防护 33, 353-356(2012)
【4】颜晓潮,徐佳慧,刘锋波,张卫星,程正载, "缓蚀抑雾剂的制备与应用",腐蚀与防护 37, 855-860(2016)
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参考文献
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【3】F Bentiss,M Traisnel,M Lagrenee.The substituted 1,3,4-oxadiazoles:a new class of corrosion inhibitors of mild steel in acidic media[J].Corrosion Science,2000,42:127-146.
【4】A Yurt,S Ulutas,H Dal.Electrochemical and theoretical investigation on the corrosion of aluminium in acidic solution containing some Schiff bases[J].Applied Surface Science,2006,253:919-1925.
【5】K F Khaled,N Hackerman.Investigation of the inhibitive effect of ortho-substituted anilines on corrosion of iron in 1 mol/L HCl solutions[J].Electrochimica Acta,2003,48:2715-2723.
【6】朱丽琴,瑞泉,吉德.唑衍生物在3%NaHCO3溶液中对Cu的缓蚀作用[J].中国腐蚀与防护学报,2006,26:125-128.
【7】Guannan Mu,Xueming Li,Guangheng Liu.Synergistic inhibition between tween 60 and NaCl on the corrosion of cold rolled steel in 0.5 mol/L sulfuric acid[J].Corrosion Science,2005,47:1932-1952.
【8】M A Quraishi,Danish Jamal.Dianils as new and effective corrosion inhibitors for mild steel in acidic solutions[J].Materials Chemistry and Physics,2003,79:608-613.
【9】M Bouklah,B Hammouti,M Lagrene,et al.Thermodynamic properties of 2,5-bis(4-methoxyphenyl)-1,3,4-oxadiazole as a corrosion inhibitor for mild steel in normal sulfuric acid medium[J].Corrosion Science,2006,48:2831-2842.
【10】赵永生,庞正智,李惯来.咪唑及其衍生物作为铜的盐酸酸洗缓蚀剂的量子化学研究[J].北京化工大学学报,2002,29(5):53-55.
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