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SiO2溶胶作用下电沉积锌电极性能研究
引用本文:陈海宁,邢雅兰,李哲,朱立群.SiO2溶胶作用下电沉积锌电极性能研究[J].航空学报,2009,30(6):1150-1155.
作者姓名:陈海宁  邢雅兰  李哲  朱立群
作者单位:北京航空航天大学材料科学与工程学院,北京,100191
基金项目:航空科学基金(04H51002)
摘    要: 在碱性镀锌液中加入SiO2溶胶,采用电沉积技术制备电沉积式锌电极,考察镀液中加入SiO2溶胶对锌电极的电沉积速度、微观形貌及电化学性能的影响规律。研究结果表明:随着镀液中SiO2溶胶浓度(0~200 mL/L)的增加,锌的电沉积速度逐渐下降;溶胶作用下得到的锌电极的微观表面较平整致密,没有出现较大孔洞,且耐腐蚀性和循环可逆性得到改善;尤其是溶胶浓度为150 mL/L时,锌电极具有最小的腐蚀电流密度,且阴、阳极峰值电位差较小,锌电极的电化学性能最好。

关 键 词:碱性镀液  SiO2溶胶    电极  表面形貌  沉积速度  电化学性能  

Effect of SiO2 Sol on Performance of Electrodeposited Zinc Electrodes
Chen Haining,Xing Yalan,Li Zhe,Zhu Liqun.Effect of SiO2 Sol on Performance of Electrodeposited Zinc Electrodes[J].Acta Aeronautica et Astronautica Sinica,2009,30(6):1150-1155.
Authors:Chen Haining  Xing Yalan  Li Zhe  Zhu Liqun
Institution:School of Materials Science and Engineering;Beijing University of Aeronautics and Astronautics;Beijing 100191;China
Abstract:Zinc electrodes are prepared in an alkaline electrolyte containing SiO2 sol by electrodeposition in order to investigate the influence of SiO2 sol on the deposition rate,micrograph,and electrochemical performance of the zinc electrodes. The results show that deposition rate gradually decreases as the concentration of SiO2 sol (0-200 mL/L) increases,and that the surface morphology of zinc electrodes is more compact and even without large pores. Besides,the corrosion resistance and cycle reversibility of zinc...
Keywords:alkaline electrolyte  SiO2 sol  zinc  electrodes  surface morphology  deposition rate  electrochemical performance  
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