氯化2,3,5.三苯基-2氢-四唑及2,4,6-三(2-吡啶基)-s-三嗪在HC1中对碳钢的缓蚀作用
록화2,3,5.삼분기-2경-사서급2,4,6-삼(2-필정기)-s-삼진재HC1중대탄강적완식작용
2,3,5-Triphenyl-2H-tetrazolium Chloride and 2,4,6-Tri(2-pyridyl)-s-triazine on the Corrosion of Mild Steel in HCl
  • 万方数据
    中国化学工程学报（英文版） 중국화학공정학보（영문판）
    CHINESE JOURNAL OF CHEMICAL ENGINEERING
    2007年 6期 909-915 ,共7页

    庞雪辉%侯保荣%李伟华%刘法谦%于志刚

    방설휘%후보영%리위화%류법겸%우지강



    corrosion inhibition%quantum chemistry%electrochemical measurement%scanning electron microscopy


    Electrochemical measurement, quantum chemical method, and scanning electron microscopy (SEM)were performed to investigate the inhibitive effect of 2,3,5-triphenyl-2H-tetrazolium chloride (TTC) and spectroscopy measurement showed that the polarization resistance increased and that double layer capacitance decreased with the increase in the inhibitive concentration, and the results of potentiodynamic polarization showed that the inhibitors suppressed both cathodic and anodic processes of steel corrosion without change in the mechanism. Higher the orbital density distribution strength of the lowest unoccupied molecular orbital, higher is the molecule dipole, and lower energy gap between the energy of the highest occupied molecular orbital and the energy of the lowest unoccupied molecular orbital resulted in higher inhibitory efficiency. The results of SEM analysis showed that the metal was protected from aggressive corrosion by the addition of TTC and TPT.
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