氯化2,3,5-三苯基-2H-四唑及2,4,6-三(2-吡啶基)-s-三嗪在1mol/LHCl中对Q235碳钢的缓蚀作用及机理的研究(Ⅱ)  

Inhibition Effect of 2,3,5-Triphenyl-2H-tetrazolium Chloride and 2,4,6-Tri(2-pyridyl)-s-triazine on the Corrosion of Mild Steel in 1 mol/L HCl and Mechanism Study (Ⅱ)

作　　者：庞雪辉[1] 冉祥滨[2] 解建东[3] 张胜涛[4] 侯保荣[5] 

机构地区：[1]济南大学化学化工学院,济南250022 [2]中国海洋大学化学化工学院,青岛266003 [3]山东建筑大学设计研究院,济南250013 [4]重庆大学化学化工学院,重庆400044 [5]中国科学院海洋研究所,青岛266071

出　　处：《化学学报》2009年第20期2279-2284,共6页Acta Chimica Sinica

基　　金：国家科技支撑计划(No.082603101c);济南大学博士基金(No.XBS0899)资助项目

摘　　要：通过X射线光电子能谱(XPS)、椭圆偏振原位测试考察了氯化2,3,5-三苯基-2H-四唑(TTC),2,4,6-三(2-吡啶基)-s-三嗪(TPT)分子在1mol/LHCl中对碳钢表面的缓蚀作用,并从微观上对二者的缓蚀机理进行探讨.XPS测试结果显示,由C,N元素的1s特征峰产生的化学位移及其积分峰面积表明TTC,TPT分子在金属表面产生了有效抑制腐蚀的保护层;由椭圆偏振原位测试并结合动电位极化曲线测试,考察了TTC,TPT分子对金属表面腐蚀反应的抑制程度,并得到了相位差等参量,结果表明二者在金属表面形成了具有缓蚀作用的覆盖层.The inhibitory effect of 2,3,5-triphenyl-2H-tetrazolium chloride （TTC） and 2,4,6-tri（2-pyridyl）- s-triazine （TPT） molecules on the corrosion of mild steel in 1 mol/L HCl and microcosmic inhibitory mechanism were investigated by X-ray photoelectron spectroscopy and ellipsometry. XPS results showed that C 1 s and N 1 s peaks of TTC, C 1 s and N 1 s peaks of TPT and their integral areas were obtained, which suggested the layer of the inhibitors （TTC or TPT） should have effectively protected the mild steel surface from the corrosion; and the depression from the inhibitors for the corrosion of mild steel surface was studied using ellipsometry combined with potentiodynamic polarization and the phasic difference was gained, which displayed the inhibitory coverage of the inhibitors formed.

关 键 词：碳钢 缓蚀剂 X射线光电子能谱 椭圆偏振 吸附 

分 类 号：TG174.42[金属学及工艺—金属表面处理]