inhibitors. Among the studied compounds, APQD-4 exhibited the highest inhibition efficiency of 98.30% at 20 mg l−1 concentration. The studied compounds effectively retarded the corrosion of mild steel in 1 M HCl by adsorbing onto the steel surface, and the adsorption data conformed to the Langmuir adsorption isotherm. The results of potentiodynamic polarization measurements revealed that the studied compounds
在1M的HCl的低碳钢腐蚀的由4个5 arylpyrimido- [4,5-抑制b ]
喹啉二
酮类(APQDs),即5-(4-
硝基苯基)-5,10-二氢
嘧啶并[4,5- b ]
喹啉-2,4(1 H,3 H)-二酮(APQD-1),5-苯基-5,10-二氢
嘧啶[4,5- b ]
喹啉-2,4(1 H,3 H)-二酮(APQD-2),5-(
4-羟苯基)-5,10-二氢
嘧啶[4,5 - b ]
喹啉-2,4(1 H,3 H)-二酮(APQD-3)和5-( 2,4-二羟基苯基)-5,10-二氢
嘧啶基[4,5- b ]
喹啉-2,4(1 H,3 H)-二酮(APQD-4)已通过失重,电
化学,表面和量子
化学计算以及分子动力学模拟方法进行了研究。结果表明,随着
抑制剂浓度的增加,抑制效率(η%)增加。在研究的化合物中,APQD-4在20 mg l -1时表现出最高的抑制效率98.30%专注。所研究的化合物通过吸附到钢表面上,有效地抑制了1