Rare earth cerium-phenanthroline binary complex as a new corrosion inhibitor for carbon steel in acidic medium

doi:10.1007/s11164-022-04918-z

IMR OpenIR

	Rare earth cerium-phenanthroline binary complex as a new corrosion inhibitor for carbon steel in acidic medium
	Liu, Xia 1; Zhang, Yue 1; Pan, Xuemei 1; Wang, Zhengbin 2
通讯作者	Wang, Zhengbin(zbwang12s@imr.ac.cn)
	2022-12-19
发表期刊	RESEARCH ON CHEMICAL INTERMEDIATES
ISSN	0922-6168
页码	23
摘要	This paper synthesizes a Ce (III) complex with 1,10-phenanthroline (phen) as the ligand, whose chemical formula is confirmed as Ce(NO3)(3)(phen)(2), and evaluate its inhibition effects on the corrosion of P110 carbon steel in 0.5 M HCl by electrochemical measurements, surface analyses and theoretical calculations. The results show that the Ce(NO3)(3)(phen)(2) complex exhibits high corrosion inhibition efficiencies of similar to 95% at 298 K (25 degrees C) and similar to 90% at relatively high temperature of 328 K (55 degrees C), outperforming its cerium salt and ligand of phen. The highest corrosion inhibition efficiency of Ce(NO3)(3)(phen)(2) corresponds to its highest thermodynamics parameters of activation energy (E-a), activation enthalpy (Delta H-a) and activation entropy (Delta S-a) and the equilibrium constant of adsorption (K-ads). Surface analyses further confirm the superior corrosion inhibition performance of Ce(NO3)(3)(phen)(2). Moreover, the X-ray photoelectron spectroscopy analysis indicate that Ce(NO3)(3)(phen)(2) can inhibit corrosion by simultaneously forming adsorption film via its phen ligand and precipitation film via its Ce (III) complex, which could be the reason for its high corrosion inhibition performance at high temperature. DFT calculations and molecular dynamic simulation show a good correlation with the experimental results.
关键词	Corrosion inhibitor Rare earth metal complex Temperature Acid corrosion
资助者	Educational Department of Liaoning Province
DOI	10.1007/s11164-022-04918-z
收录类别	SCI
语种	英语
资助项目	Educational Department of Liaoning Province ; [LJ2020013]
WOS研究方向	Chemistry
WOS类目	Chemistry, Multidisciplinary
WOS记录号	WOS:000900782700001
出版者	SPRINGER
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/175696
专题	中国科学院金属研究所
通讯作者	Wang, Zhengbin
作者单位	1.Shenyang Univ Chem Technol, Coll Sci, Shenyang 110142, Peoples R China 2.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, 62 Wencui Rd, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Liu, Xia,Zhang, Yue,Pan, Xuemei,et al. Rare earth cerium-phenanthroline binary complex as a new corrosion inhibitor for carbon steel in acidic medium[J]. RESEARCH ON CHEMICAL INTERMEDIATES,2022:23.
APA	Liu, Xia,Zhang, Yue,Pan, Xuemei,&Wang, Zhengbin.(2022).Rare earth cerium-phenanthroline binary complex as a new corrosion inhibitor for carbon steel in acidic medium.RESEARCH ON CHEMICAL INTERMEDIATES,23.
MLA	Liu, Xia,et al."Rare earth cerium-phenanthroline binary complex as a new corrosion inhibitor for carbon steel in acidic medium".RESEARCH ON CHEMICAL INTERMEDIATES (2022):23.