Na_3AlF_6-AlF_3熔盐中Ti(Ⅳ)的阴极还原机理

孙海斌; 左秀荣; 仲志国; 胡雪惠

doi:10.61558/2993-074X.1873

电化学 >

2008 , Vol. 14 >Issue 1: 104 - 107

DOI: https://doi.org/10.61558/2993-074X.1873

研究论文

Na_3AlF_6-AlF_3熔盐中Ti(Ⅳ)的阴极还原机理

孙海斌 ,
左秀荣 ,
仲志国 ,
胡雪惠

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信阳师范学院物理电子工程学院,郑州大学物理工程学院材料物理教育部重点实验室,南阳师范学院物理系,信阳师范学院物理电子工程学院河南信阳464000,河南郑州450052,河南南阳473100,河南信阳464000

收稿日期: 2008-02-28

修回日期: 2008-02-28

网络出版日期: 2008-02-28

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Mechanism of the Cathode Reduction of Ti(Ⅳ) in Molten Na_3AlF_6-AlF_3

SUN Hai-bin ,
ZUO Xiu-rong ,
ZHONG Zhi-guo ,
HU Xue-hui

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(1.College of Physics & Electronic Engineering,Xinyang Normal University,Xinyang 464000,Henan,China;2.Zhengzhou University,School of Physical Engineering and Key Laboratory ofMaterials Physics of the Ministry of Education of China,Zhengzhou 450052,China;3.Department of Physics,Nanyang Normal University,Nanyang 4731000 Henan,China

Received date: 2008-02-28

Revised date: 2008-02-28

Online published: 2008-02-28

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摘要

应用循环伏安法和计时电位法研究了在990℃下Na3AlF6-AlF3熔盐中,TiO2钨丝电极上的阴极还原机理.实验表明,Ti(Ⅳ)电沉积过程分两步进行:即首先是Ti(Ⅳ)还原为Ti(Ⅱ),然后Ti(Ⅱ)再还原为金属钛,可表示为:Ti(Ⅳ)→Ti(Ⅱ)→Ti.

关键词： Na3AlF6-AlF3; 熔盐; 钛离子; 循环伏安

本文引用格式

孙海斌 , 左秀荣 , 仲志国 , 胡雪惠 . Na_3AlF_6-AlF_3熔盐中Ti(Ⅳ)的阴极还原机理[J]. 电化学, 2008 , 14(1) : 104 -107 . DOI: 10.61558/2993-074X.1873

Abstract

The mechanism of TiO2 electrode process has been investigated by cyclic voltammetry and chronopotentiometry on the tungsten filament in molten Na3AlF6-AlF3 salts at 990 ℃.The experimental results showed that electrochemical reduction of Ti(Ⅳ) precede were two steps,firstly Ti(Ⅳ) was reduced to Ti(Ⅱ),then Ti(Ⅱ) was reduced to Ti,namely: Ti(Ⅳ)→Ti(Ⅱ)→Ti.

Key words： Na3AlF6-AlF3; molten salts; titamium ions; cyclic voltammetry

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