Microwave synthesis of ultrafine and nanosized powders of tungsten oxide and carbide

被引：5

作者：

Nikolaenko, Irina ^{[1
]}

Kedin, Nikolay ^{[1
]}

Shveikin, Gennadii ^{[1
]}

Polyakov, Evgenii ^{[1
]}

机构：

[1] Russian Acad Sci, Ural Branch, Inst Solid State Chem, Ekaterinburg 620990, Russia

来源：

INTERNATIONAL JOURNAL OF MATERIALS RESEARCH | 2014年 / 105卷 / 03期

关键词：

Tungsten oxide; Tungsten carbide; Microwave synthesis; Carbon carrier; Specific surface area; WC;

D O I：

10.3139/146.111020

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

A new method of synthesis of nanosized and ultrafine tungsten oxide and carbide powders is offered, which combines carbon carrier supported classical liquid-phase precipitation and low-temperature microwave treatment. The full range of intermediate substances obtained during thermolysis, reduction and carburization of precursors to final products is presented. It is shown that cooling of ammonium tungstate solution to 4 degrees C and the use of carbon carrier at the precipitation stage can increase the specific surface area from 20 to 100 m(2) g(-1).

引用

页码：314 / 317

页数：4

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