Effects of corrosion inhibitors on composition and properties of electrolyte after discharging for aluminum-air batteries

被引：0
|
作者：
Cheng H. [1 ]
Zhu Y. [1 ]
Hua Z. [1 ]
Li Z. [1 ]
Wang T. [1 ]
Lu Y. [1 ]
Tian Z. [1 ]
Peng K. [1 ]
机构：
[1] School of Metallurgy and Environment, Central South University, Changsha
来源：
Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology) | 2023年 / 54卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Compilation and indexing terms; Copyright 2025 Elsevier Inc;
D O I：
10.11817/j.issn.1672-7207.2023.02.028
中图分类号：
学科分类号：
摘要：
The effects of different types of corrosion inhibitors on the composition and properties of the electrolyte after discharging for aluminum-air battery were studied by means of infrared and Raman spectroscopy combined with the analysis of physical properties such as viscosity and ionic conductivity, and the properties of the electrolyte after discharging were further analyzed. The results show that the content of Al(III) in the electrolyte containing ZnO-AM and ZnO-PAM composite corrosion inhibitors after discharging is lower, and the caustic ratios are 16.17 and 17.46, respectively. The aluminum mainly exists in the form of Al(OH)-4 in the electrolyte after discharging, accompanied with a small amount of Al(OH)36-. In addition, there are also some [(HO)3AlOAl(OH)3]2− dimer ions in the electrolyte containing AM and ZnO-AM corrosion inhibitors after discharging. The corrosion inhibitors does not change the strongly alkaline environment of the solution, and the addition of ZnO has little effect on the viscosity and ionic conductivity of the electrolyte. The viscosity of the electrolyte containing ZnO-AM hybrid corrosion inhibitors after discharging is 2.51 mPa·s, and the conductivity is 1 317.28 mS/cm. However, in the electrolyte of ZnO-PAM composite corrosion inhibitors after discharging, the viscosity increases to 5.75 mPa·s, and the conductivity drops to 1 065.25 mS/cm. © 2023 Central South University of Technology. All rights reserved.
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页码：702 / 709
页数：7
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