Anodic behavior of Fe in acidic AlCl<sub>3</sub>-EMIC ionic liquid

YANG Yang; XUE Dongpeng; LING Guoping

doi:10.11949/j.issn.0438-1157.20151753

您当前的位置：

首页 >

文章列表页 >

Anodic behavior of Fe in acidic AlCl₃-EMIC ionic liquid

更新时间：2025-12-10

- Anodic behavior of Fe in acidic AlCl₃-EMIC ionic liquid
- CIESC Journal Issue S1, Pages: 341-346(2016)
- 作者机构：
  
  浙江大学材料科学与工程学院,浙江,杭州,310027
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20151753
  CLC： Q153
- Online First：31 August 2016，
  
  Published：31 August 2016
- 稿件说明：
移动端阅览
YANG Yang, XUE Dongpeng, LING Guoping. Anodic behavior of Fe in acidic AlCl₃-EMIC ionic liquid[J]. CIESC Journal, 2016, (S1): 341-346. DOI: 10.11949/j.issn.0438-1157.20151753.
DOI：

YANG Yang, XUE Dongpeng, LING Guoping. Anodic behavior of Fe in acidic AlCl₃-EMIC ionic liquid[J]. CIESC Journal, 2016, (S1): 341-346. DOI: 10.11949/j.issn.0438-1157.20151753. DOI：

摘要

重点研究了纯铁（Fe）在2∶1酸性AlCl3-氯化1-甲基-3-乙基咪唑（AlCl3-EMIC）中的阳极行为。通过三电极体系测定了Fe在AlCl3-EMIC中的阳极极化和不同电位下的电流-时间曲线，利用恒电位溶解计算了Fe溶解的价态，最后通过扫描电子显微镜（SEM）观察了不同电流密度下Fe的溶解形貌。结果表明：Fe表面的氧化膜会阻碍Fe的溶解，在去除氧化膜后，当电位达到-0.35 V时，Fe开始发生活性溶解，产物为Fe（Ⅱ）。Fe的阳极电流密度随电位的增加而增加，达到峰值后显著下降。小电流密度下（如2 mA·cm-2），Fe的溶解形貌随时间的延长，呈现先点状腐蚀再均匀腐蚀的特点；而大电流密度下（如15 mA·cm-2），Fe电极表面会生成一层固态物质，同时可见清晰的划痕，即不发生明显的腐蚀。

Abstract

The anodic behavior of Fe in 2:1 acidic AlCl3-1-ethyl-3-methyl-imidazolium chloride (AlCl3-EMIC) ionic liquid was investigated in this paper. Anodic polarization and chronoamperometry was measured using three-electrode system. The valence state of dissolved Fe was calculated by potentiostatic process. The surface morphologies of Fe were characterized using a scanning electron microscopy (SEM). The results showed that the oxide film would restrain the dissolution of Fe. After the oxide film was removed

Fe began to dissolve at the potential of -0.35 V versus Pt. The anodic current density increased rapidly to a maximum with the positive shift of potential and than decreased abruptly. The product existed in the form of Fe(Ⅱ). After galvanostatic process at 2 mA·cm-2

the surface of Fe showed a pitting morphology

which became homogeneous as time prolonged. With a larger anodic current applied (15 mA·cm-2)

no obvious corrosion occurred on the surface of Fe electrode with precipitate formed.

关键词

Keywords

references

Views

195

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Surface modification and application in biomedicine and environmental protection of magnetic Fe3O4 nanoparticles

Chemical looping combustion characteristics of lignite using Co-Fe2O3[104]/Al2O3 oxygen carrier

Promotion of ascorbic acid on oxidation of NO by Fe2+/H2O2 system

Convection heat transfer of Fe3O4-kerosene in a vertical tube at supercritical pressures

Roles of varied radicals in NO oxidation by Fe2+/H2O2 system

Related Author

DU Jinjing

YANG Zhanlin

YANG Fan

ZHOU Yuhang

KANG Lu

HU Ping

CHANG Tian

CHEN Zhenyu

Related Institution

School of Metallurgy Engineering, Xi'an University of Architecture and Technology

State Local Joint Engineering Research Center for Functional Materials Processing, Xi'an University of Architecture and Technology

National Engineering Laboratory for Biomass Power Generation Equipment, North China Electric Power University

Institute of Civil Engineering & Architecture, Northeast Petroleum University

College of Energy Science and Engineering, Harbin Institute of Technology

⁰

Anodic behavior of Fe in acidic AlCl3-EMIC ionic liquid

DOI：10.11949/j.issn.0438-1157.20151753

摘要

Abstract

关键词

Keywords

references

Anodic behavior of Fe in acidic AlCl₃-EMIC ionic liquid