Insight into the anti-corrosion performance of two food flavors as eco-friendly and ultra-high performance inhibitors for copper in sulfuric acid medium

Bochuan Tan; Shengtao Zhang; Xianlong Cao; Anqing Fu; Lei Guo; Riadh Marzouki; Wenpo Li

doi:10.1016/j.jcis.2021.11.085

Insight into the anti-corrosion performance of two food flavors as eco-friendly and ultra-high performance inhibitors for copper in sulfuric acid medium

J Colloid Interface Sci. 2022 Mar:609:838-851. doi: 10.1016/j.jcis.2021.11.085. Epub 2021 Nov 18.

Authors

Bochuan Tan¹, Shengtao Zhang², Xianlong Cao³, Anqing Fu⁴, Lei Guo⁵, Riadh Marzouki⁶, Wenpo Li⁷

Affiliations

¹ School of Metallurgy and Materials Engineering, Chongqing University of Science and Technology, University Town, Shapingba District, Chongqing 401331, China. Electronic address: bochuantan@163.com.
² School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China.
³ School of Metallurgy and Materials Engineering, Chongqing University of Science and Technology, University Town, Shapingba District, Chongqing 401331, China.
⁴ State Key Laboratory for Performance and Structure Safety of Petroleum Tubular Goods and 11 Equipment Materials, CNPC Tubular Goods Research Institute, Xi'an, Shaanxi 710077, PR China. Electronic address: fuanqingcnpc@163.com.
⁵ School of Material and Chemical Engineering, Tongren University, Tongren 554300, China.
⁶ Chemistry Department, College of Science, King Khalid University, Abha 61413, Saudi Arabia; Chemistry Department, Faculty of Sciences, University of Sfax, 1171, Sfax 3000, Tunisia.
⁷ School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China. Electronic address: wpli@cqu.edu.cn.

PMID: 34838315
DOI: 10.1016/j.jcis.2021.11.085

Abstract

2,5-dihydroxy-1,4-dithiane (DDD) and 2,5-dimethy- [1.4] dithiane-2,5-diol (DTDD) two food flavors as environmentally-friendly inhibitors for Cu in 0.5 mol/L H₂SO₄ media were researched via theoretical calculation and experimental ways. Electrochemical measurement data showed that DDD and DTDD can exhibit high level anti-corrosion feature. The anti-corrosion efficiency of DDD and DTDD were as high as 99.6% and 98.9%, respectively. The atomic force microscope (AFM) and scanning electron microscope (SEM) tests showed that the Cu specimens were immersed in the H₂SO₄ with 5 mM DDD and DTDD for 30 h at the 298 K, and the Cu specimen surface was still smooth. Besides, the adsorption of DDD and DTDD at the interface of Cu/solution was comply with Langmuir adsorption. Theoretical calculation data showed that DDD exhibit more ascendant anti-corrosion feature than DTDD.

Keywords: 2,5-Dihydroxy-1,4-dithiane; 2,5-Dimethy-[1.4] dithiane-2,5-diol; Copper; Corrosion inhibitor; Electrochemical test; Food flavors.

MeSH terms

Copper*
Corrosion
Steel*
Sulfuric Acids

Substances

Sulfuric Acids
Steel
Copper
sulfuric acid