一种三氮唑双席夫碱对N80钢在HCl介质中的缓蚀作用
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摘要
通过静态失重法、电化学阻抗谱法、极化曲线法和扫描电镜等方法,研究了一种三氮唑双席夫碱化合物(TSB)在1mol/L HCl溶液中对N80钢的缓蚀作用。结果表明:在1mol/L HCl溶液中,TSB对N80钢具有优异的缓蚀效果,缓蚀率随TSB含量的增加而增大,随温度的升高而降低;当温度为298K,TSB浓度为2.0mmol/L时,缓蚀率可达96%;TSB为同时抑制阴极反应和阳极反应的混合型缓蚀剂,其在N80钢表面的吸附是以化学吸附为主的自发过程,符合Langmuir等温吸附方程。
The corrosion inhibition of triazole bis-Schiff base(TSB)to N80 steel in 1 mol/L HCl solution was investigated using static weight-loss method,electrochemical impedance spectroscopy,polarization curves and scanning electron microscopy.The results show that TSB had excellent inhibiting effect to N80 steel in 1 mol/L HCl solution,and the inhibition efficiency increased with the concentration of TSB.With the increase of temperature,the inhibition efficiency decreased.When the concentration of TSB was 2.0 mmol/L and the temperature was 298 K,the inhibition efficiency reached 96%.TSB acted as a mixed-type inhibitor which suppressed both anodic reaction and cathodic reaction.The adsorption of TSB on the surface of N80 steel was a spontaneous process dominated by chemical adsorption,and obeyed Langmuir isothermal adsorption equation.
The corrosion inhibition of triazole bis-Schiff base(TSB)to N80 steel in 1 mol/L HCl solution was investigated using static weight-loss method,electrochemical impedance spectroscopy,polarization curves and scanning electron microscopy.The results show that TSB had excellent inhibiting effect to N80 steel in 1 mol/L HCl solution,and the inhibition efficiency increased with the concentration of TSB.With the increase of temperature,the inhibition efficiency decreased.When the concentration of TSB was 2.0 mmol/L and the temperature was 298 K,the inhibition efficiency reached 96%.TSB acted as a mixed-type inhibitor which suppressed both anodic reaction and cathodic reaction.The adsorption of TSB on the surface of N80 steel was a spontaneous process dominated by chemical adsorption,and obeyed Langmuir isothermal adsorption equation.
引文
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[20]郑兴文,龚敏,陈仕林,等.药物莫西沙星对Q235钢在盐酸溶液中的缓蚀作用[J].应用化学,2017,34(8):955-964.
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[23]田永芹.缓蚀剂吡啶及其衍生物缓蚀性能的研究[D].东营:中国石油大学,2009.
[24]杨秀芳,唐敏敏,马养民,等.曼尼希碱缓蚀剂在盐酸中对N80钢缓蚀性能[J].表面技术,2017,46(1):175-181.
[2]谢彦,马尚尚,李宏亮,等.一种含硫杂环双席夫碱化合物在硫酸介质中对Q235碳钢的缓蚀作用[J].材料保护,2016,49(4):51-54,65.
[3]ELEMIKE E E,NWANKWO H U,ONWUDIWE D C,et al.Synthesis,crystal structures,quantum chemical studies and corrosion inhibition potentials of 4-(((4-ethylphenyl)imino)methyl)phenol and(E)-4-((naphthalen-2-ylimino)methyl)phenol Schiff bases[J].Journal of Molecular Structure,2017,1147:252-265.
[4]AL-R AWASHDEH N A F.The efficiency of ecofriendly Schiff bases as corrosion inhibitor for stainless steel in hydrochloric acid solution[J].International Journal of Electrochemical Science,2017,12(9):8535-8551.
[5]SINGH A,ANSARI K R,XU X H,et al.An impending inhibitor useful for the oil and gas production industry:weight loss,electrochemical,surface and quantum chemical calculation[J].Scientific Reports,2017,7:14904.
[6]SINGH P,QURAISHI M A.Corrosion inhibition of mild steel using novel bis Schiffs bases as corrosion inhibitors:electrochemical and surface measurement[J].Measurement,2016,86:114-124.
[7]MOBIN M,MASROOR S.Experimental and theoretical study on corrosion inhibition of mild steel in 20%formic acid solution using Schiff base-based cationic gemini surfactant[J].Tenside Surfactants Detergents,2016,53(2):157-167.
[8]高统海,战风涛,杨震,等.双缩乙二胺Schiff碱的合成及其酸化缓蚀性能[J].腐蚀与防护,2017,38(2):101-106,112.
[9]SOLTANI N,SALAVATI H,RASOULI N,et al.Adsorption and corrosion inhibition effect of Schiff base ligands on low carbon steel corrosion in hydrochloric acid solution[J].Chemical Engineering Communications,2016,203(6):840-854.
[10]张哲,阮乐,李秀莹,等.3氨基1,2,4三氮唑及3氨基1,2,4三氮唑并芳香醛类希夫碱自组装膜对碳钢在0.5 mol/L盐酸中的缓蚀性能研究[J].表面技术,2017,46(1):193-199.
[11]YADAV V K,KAR S,MISHRA L.Reactivity of triazolyl Schiff bases with Ru(II)-2,2′-bipyridyl:synthesis,spectroscopic characterization of isomers and their photo-physical properties[J].Polyhedron,2009,28(1):121-125.
[12]刘红,诸林,李林峰,等.盐酸介质中双子表面活性剂对N80钢的吸附缓蚀性能[J].腐蚀科学与防护技术,2014,26(1):30-34.
[14]LI X H,DENG S D,FU H.Inhibition of the corrosion of steel in HCl,H2SO4solutions by bamboo leaf extract[J].Corrosion.Science,2012,62:163-175.
[15]王春霞,陈敬平,张晓红,等.溴化N辛烷异喹啉在盐酸溶液中对Q235碳钢的缓蚀行为[J].中国腐蚀与防护学报,2016,36(3):245-252.
[16]苑敬.咪唑类表面活性剂与疏水修饰聚丙烯酰胺的相互作用[D].济南:山东大学,2014.
[17]MARTINEZ S,TERN I.Inhibitory mechanism of low-carbon steel corrosion by mimosa tannin in sulphuric acid solutions[J].Journal of Applied Electrochemistry,2001,31(9):973-978.
[18]HEGAZY M A,HASAN A M,EMARA M M,et al.Evaluating four synthesized Schiff bases as corrosion inhibitors on the carbon steel in 1Mhydrochloric acid[J].Corrosion Science,2012,65:67-76.
[19]KUMARI P D R,NAYAK J,SHETTY A N.3-Methyl-4-amino-5-mercapto-1,2,4-triazole as corrosion inhibitor for 6061Al alloy in 0.5 Msodium hydroxide solution[J].Journal of Coatings Technology and Research,2011,8(6):685-695.
[20]郑兴文,龚敏,陈仕林,等.药物莫西沙星对Q235钢在盐酸溶液中的缓蚀作用[J].应用化学,2017,34(8):955-964.
[21]BENTISS F,LEBRINI M,LAGRENE M.Thermodynamic characterization of metal dissolution and inhibitor adsorption processes in mild steel/2,5-bis(n-thienyl)-1,3,4-thiadiazoles/hydrochloric acid system[J].Corrosion Science,2005,47(12):2915-2931.
[22]BENABDELLAH M,TOUZANI R,DAFALI A,et al.Ruthenium-ligand complex,an efficient inhibitor of steel corrosion in H3PO4 media[J].Materials Letters,2007,61(4/5):1197-1204.
[23]田永芹.缓蚀剂吡啶及其衍生物缓蚀性能的研究[D].东营:中国石油大学,2009.
[24]杨秀芳,唐敏敏,马养民,等.曼尼希碱缓蚀剂在盐酸中对N80钢缓蚀性能[J].表面技术,2017,46(1):175-181.
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