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Xiaolei Ren,Jinwu Bai,Xingxing Gu,Hui Xu,Bochuan Tan,Shenying Xu,Jiangyu Hao,Fang Gao,Xin Li 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.113 No.-
Imidazo-pyridazine and Bromo/Chloro-Imidazo-pyridazines are employed as the inhibitors for Al alloy in0.1 M HCl and 0.5 M HCl solutions. The electrochemical tests and adsorption model analysis revealed thatthree compounds are mixed-type inhibitors and Imidazo-pyridazine exhibited the best anti-corrosionperformance for Al electrode in HCl solutions by physicochemical. From electrochemical results, the bestanti-corrosion efficiency is 88.1 % for Al in 0.5MHCl with 2.0mMIP, while the efficiency is 75.5 % for Al in0.5 M HCl with 1.0 mM IP. The different inhibition behaviors result from the probability of the formationof AlCladsand N-onium ions. The formation of adsorption is due to the electrostatic attraction betweenAlCladsand N-onium ions. The surface topography test revealed that the Imidazo-pyridazine is the best corrosionbarrier for Al in 0.5 M HCl. The dynamic simulation demonstrated that the inhibition molecules andprotonated molecules can adsorb on the Al surface spontaneously with parallel adsorption configuration nomatter in more or less Cl- atmosphere.