应用恒电位稳态极化和交流阻抗技术研究了希夫碱—邻香兰素邻苯二胺 (V_oPh_V)在中性NaCl或NaBr溶液中对金属铜阳极溶解和腐蚀的缓蚀作用 .通过比较铜在空白溶液与含有V_o_Ph_V溶液中的电化学行为解释了V_o_Ph_V的缓蚀机制 .此外还研究了V_o_Ph_V自组装膜在Na Cl溶液中对铜腐蚀的缓蚀效应 .
Inhibition of N,N'_o_phenylen_bis(3_methoxysalicylidenimine)(V_o_Ph_V)on corrosion and anodic disslution of copper in neutral NaCl and NaBr solutions was investigated in terms of potentiostatic steady_state polarization and A.C. impedance techniques.The inhibition mechanism of V_o_Ph_V to copper corrosion was interpreted in detail by comparing the electrochemical behaviors of copper in halide solutions with or without V_o_Ph_V. Besides,the inhibition effect of self_assembled V_o_Ph_V film on copper corrosion in NaCl was also studied.
[1] ZhuXiaolong ,LinLeyun ,LeiTingquan .ReviewoncorrosionbehaviorsofCu_Nialloysinseawater[J].Corro sionScienceandProtectionTechnology(inChinese) ,1997,9(1) :48.
[2 ] SmyrlWH .Electrochemistryandcorrosiononhomogeneousandheterogeneousmetalsurfaces[M ].In :BockrisJO’M ,ConwayBE ,YeagerE ,WhiteREeds.ComprehensiveTreatiseofElectrochemistry :Vol.4,NewYork :PlenumPress,1981:97～ 149.
[3] DharHP ,WhiteRE ,BurnellG ,etal.CorrosionofCuandCu_Nialloysin 0 .5MNaClandinsyntheticsea waters[J].Corrosion ,1985 ,41(6 ) :317.
[4 ] BjornahlWD ,NobeK .Coppercorrosioninchloridemedia[J].Effectofoxygen .Corrosion ,1984,40 (2 ) :82 .
[5 ] GeorgiadouM ,AlkireR .Modelingofcoppetetchinginaeratedchloridesolutions[J].J.Appl.Electrochem .,1998,2 8:12 7.
[6 ] DeslouisC ,TribolletB ,MenagoliG ,MusianiMM .Electrochemicalbehaviorofcopperinmeutralaeratedchlo ridesolution .I.Steady_stateinvestigation[J].J.Appl.Electrochem .,1988,18:374.
[7] DeslouisC ,TribolletB ,MengoliG ,MusianiMM .Electrochemicalbehaviorofcopperinneutralaeratedchlo ridesolutiol.Ⅱ .Impedanceinvestigation[J].J.Appl.Electrochem .,1998,18:384.
[8] TromansD ,SunR_h .Anodicpolarizationbehaviorofcopperinaqueouschloride/benzotriazolesolutions[J].J .Electrochem .Soc.,1991,142 :398.
[9] TromansD ,AbenT .AnodicpolarizationbehaviorofcopperinaqueousBromide/benztriazolesolutions[J].J .Elecrtochem .Soc.,1991,142 (2 ) :398.
[10 ] JinturkarP ,GuanYC ,HanKN .Dissolutionandcorrosioninhibitionofcopper,zincandtheiralloys[J].Cor rosion ,1988,5 4(2 ) :10 6 .
[11] LiShulan ,MaHouyi,LeiShengbin ,etal.InhibitionofcoppetcorrosionwithSchiffbasederivedfrom 3_methoxysalicyladehydeando_phenyldiamineinchloridemedia[J].Corrosion ,1998,5 4(12 ) :947.
[12 ] LeeHP ,NobeK .KineticsandMechanismsofCuelectrodissolutioninchloridemedia[J].J.Electrochem .Soc.,1986 ,133(10 ) :2 0 35 .
[13] BenedettiAV ,SumodjoPTA ,NobeK ,etal.Electrochemicalstudiesofcopper,copper_aluminumandcop per_aluminum_silveralloys:impedanceresultsin 0 .5MNaCl[J].Electrochim .Acta ,1995 ,40 (16 ) :2 6 5 7.
[14] MaHouyi,ChengXiaoliang ,ChenShenhaoetal.Anacimpedancestudyoftheanodicdissolutionofironinsulfuricacidsolutionscontaininghydrogensulfide[J].J.Electroanal.Chem .,1998,5 41:11.
[15 ] WuXiaojuan ,MaHouyi,ChenShenhao,etal.GeneralequivalentcircuitsforFaradaicelectrodeprocessesun derelectrochemicalreactioncontrol[J].J.Electrochem .Soc.,1999,146 (5 ) :1847.
[16 ] MaHouyi,ChenShenhao ,ChengXiaoliang ,etal.Analysisofimpedancedatawithdispersingeffectbyusingthelinearleastsquaresregressionmethod[J].J.Serb .Chem ,Soc.,1997,6 2 (17) :12 0 1.
[17] CaoChunan .CorrosionElectrochemistry(inChinese) [M].Beijing:PressofChemicalIndustry .1995 :134 .
[18] CaoChunan .CorrosionElectrochemistry(inchinese) [M ].Beijing:PressofChemicalIndustry.1995 :144～149.
[19] KuangYafei,ChenShu ,LinZhicheng .Astudyofinhibitionbehaviorof 2_Mercaptobenzothiazoleoncopperinsodiumchloridesolution[J].JournalofChineseSocietyforCorrosionandProtection(inChinese) .1995 ,15(2 ) :14.
