Protection by a polymer composite on carbon steel surface in 1.0 M HCl environment: a combined experimental and theoretical approach

doi:10.1007/s43153-021-00187-2

IMR OpenIR

	Protection by a polymer composite on carbon steel surface in 1.0 M HCl environment: a combined experimental and theoretical approach
	Nwanonenyi, S. C.1,2; Obasi, H. C.1,2; Udochukwu, M.2; Chidiebere, M. A.2; Njoku, D. I.2,3; Oguzie, E.2
通讯作者	Nwanonenyi, S. C.(nwanonenyi.simeon@futo.edu.ng)
	2021-11-25
发表期刊	BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING
ISSN	0104-6632
页码	15
摘要	The protection impact of hydroxyethyl cellulose, HEC and polyacrylic acid, PAA mixtures (at different proportions and concentrations respectively) on a carbon steel surface induced in 1.0 M HCl environment was investigated at 30-60 degrees C using experimental and theoretical studies. On an individual basis, HEC and PAA exhibited moderate performance, respectively, whereas HEC/PAA mixtures at the maximum inhibitor concentration produced near excellent inhibition results according to gasometric results. Also, inhibition effectiveness was sensitive to concentration, mixing proportion, time and temperature, and the order of effectiveness recorded was as follows: HEC/PAA > HEC > PAA. The temperature and inhibition efficiency relation observed supported physical adsorption, while adsorption studies followed a Langmuir isotherm. Results for Gibb's free energy confirmed the feasibility and the spontaneity of electrochemical reaction process. Results of activation energy and heat of adsorption respectively supported physical adsorption and the HEC/PAA (4:1) system functioned as a mixed-type inhibitor as recorded in polarization results. The surface analysis (via scanning electron microscopy, SEM) results on metal exposed to test solutions supported the evidence of adsorption inhibition. In addition, computational studies provided the structural descriptors of the repeat unit of the inhibitor molecules for accurate interpretation of their chemical reactivities. Also, molecular dynamics simulations were used as a theoretical basis to explain the real experimental reactions of the corrosion and inhibition processes.
关键词	Polymer composite hydroxyethyl cellulose Polyacrylic acid Inhibition performance Adsorption
资助者	World Bank Africa Centres of Excellence for Impact (ACE Impact) project
DOI	10.1007/s43153-021-00187-2
收录类别	SCI
语种	英语
资助项目	World Bank Africa Centres of Excellence for Impact (ACE Impact) project[NUC/EC/507/1/304]
WOS研究方向	Engineering
WOS类目	Engineering, Chemical
WOS记录号	WOS:000722503900001
出版者	SPRINGER HEIDELBERG
引用统计	被引频次：5[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/321006/167497
专题	中国科学院金属研究所
通讯作者	Nwanonenyi, S. C.
作者单位	1.Fed Univ Technol Owerri, Dept Polymer & Text Engn, PMB 1526, Owerri, Imo, Nigeria 2.Fed Univ Technol Owerri, Africa Ctr Excellence Future Energies & Electroch, PMB 1526, Owerri, Imo, Nigeria 3.Chinese Acad Sci, Inst Met Res, 62 Wencui Rd, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Nwanonenyi, S. C.,Obasi, H. C.,Udochukwu, M.,et al. Protection by a polymer composite on carbon steel surface in 1.0 M HCl environment: a combined experimental and theoretical approach[J]. BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING,2021:15.
APA	Nwanonenyi, S. C.,Obasi, H. C.,Udochukwu, M.,Chidiebere, M. A.,Njoku, D. I.,&Oguzie, E..(2021).Protection by a polymer composite on carbon steel surface in 1.0 M HCl environment: a combined experimental and theoretical approach.BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING,15.
MLA	Nwanonenyi, S. C.,et al."Protection by a polymer composite on carbon steel surface in 1.0 M HCl environment: a combined experimental and theoretical approach".BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING (2021):15.