Separation and kinetic study of iron corrosion in acidic solution via a modified tip generation/substrate collection mode by SECM
By Zhang, Qinhao; Ye, Zhenni; Zhu, Zejie; Liu, Xiaoyan; Zhang, Jianqing; Cao, Fahe
Published in Corrosion Science
2018
Abstract
Anodic dissolution and cathodic hydrogen evolution behavior of pure Fe in 5 mM HClO4 solution was investigated via a modified tip generation/substrate collection mode using scanning electrochemical microscopy. The modified TG/SC mode of SECM could instantaneously divide the apparent current of Fe corrosion process into Fe oxidation and proton reduction process, and standard rate constants and transfer coefficients of hydrogen evolution and Fe oxidation are 9.2