物理化学学报2012，Vol.28Issue(1)：121-126,6.DOI:10.3866/PKU.WHXB201228121
镀锡薄钢板在功能饮料中的腐蚀行为
Corrosion Behavior of Tinplates in a Functional Beverage
摘要
Abstract
In this paper,the corrosion process of a tinplate in a functional beverage was investigated using electrochemical impedance spectroscope (EIS),scanning electron microscopy (SEM),energy dispersive X-ray spectroscopy (EDS),scanning probe microscopy (SPM),and X-ray photoelectron spectroscopy (XPS),and a corrosion mechanism is proposed.We conclude that an increase in the impedance modulus at low frequency is due to the corrosion product forming on the surface of the tinplate over the first 31 h.With an increase in the immersion time a decrease in the impedance modulus at low frequency is due to the detachment of the corrosion product and the corrosion of the carbon steel substrate.X-ray photoelectron spectroscopy (XPS) results show that the corrosion product is mainly composed of a Sn(Ⅱ)/Sn(Ⅳ) citrate complex or an Fe(Ⅲ) citrate complex.Furthermore,the corrosion product film is first enriched with Sn and then enriched with Fe after immersion in functional beverage for 24 d.We propose that the tinplate is mainly corroded by the organic acids that exist in functional beverages.关键词
镀锡薄钢板/功能饮料/腐蚀机制/电化学阻抗谱/X射线光电子能谱/扫描探针显微镜Key words
Tinplate/Functional beverage/Corrosion mechanism/Electrochemical impedance spectroscope/X-ray photoelectron spectroscopy/Scanning probe microscopy分类
化学化工引用本文复制引用
夏大海,宋诗哲,王吉会,毕慧超,韩哲文..镀锡薄钢板在功能饮料中的腐蚀行为[J].物理化学学报,2012,28(1):121-126,6.基金项目
The project was supported by the National Key Basic Research Program of China (973) (2011CB610500) （973）
国家重点基础研究发展规划项目(973) (2011CB610500)资助 （973）
