Electrochemical reduction of TiO2 powders in molten calcium chloride

被引：30

作者：

Vishnu, D. Sri Maha ^{[1
]}

Sanil, N. ^{[1
]}

Shakila, L. ^{[1
]}

Sudha, R. ^{[1
]}

Mohandas, K. S. ^{[1
]}

Nagarajan, K. ^{[1
]}

机构：

[1] Indira Gandhi Ctr Atom Res, Chem Grp, Kalpakkam 603102, Tamil Nadu, India

来源：

ELECTROCHIMICA ACTA | 2015年 / 159卷

关键词：

Titanium dioxide powder; sintering; calcium chloride; electrochemical reduction; TITANIUM-DIOXIDE; ELECTRO-DEOXIDATION; PRECURSORS; VOLTAMMETRY;

D O I：

10.1016/j.electacta.2015.01.105

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Electrochemical reduction behaviour of TiO2 powder samples, sintered at 1423 K and 1673 K and weighing similar to 1.5 g and similar to 10 g, was studied by constant voltage electrolysis at 3.1V at 1173 K. Both the samples were found to undergo reduction, but the low-temperature sintered and low-mass samples showed better overall reduction than the high-temperature sintered and high-mass samples. The reduction of the bulk parts of the samples became difficult as the sample size was increased from 1.5 g to 10 g. The size and location of the TiO2 particles in the powder electrode played an important role in the reduction of the oxide to the metal. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：124 / 130

页数：7

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