Porous WS2 and W2N powders by hard templating with colloidal silica

被引：6

作者：

Gibot, P. ^{[1
]}

Parmentier, J. ^{[2
]}

Vidal, L. ^{[2
]}

Schnell, F. ^{[1
]}

Nouali, H. ^{[2
]}

Spitzer, D. ^{[1
]}

机构：

[1] UNISTRA, ISL, CNRS,Inst Francoallemand Rech St Louis ISL, UMR 3208,Lab Nanomat Syst Sollicitat Extremes NS3, 5 Rue Gen Cassagnou,BP 70034, F-68301 St Louis, France

[2] UHA, Univ Strasbourg, CNRS, UMR 7361,IS2M, 15 Rue J Starchy,BP2488, F-68057 Mulhouse, France

来源：

CERAMICS INTERNATIONAL | 2017年 / 43卷 / 01期

关键词：

Tungsten disulfide; Tungsten nitride; Surface properties; Colloidal silica; Hard-template; TUNGSTEN NITRIDE CATALYSTS; TRANSITION-METAL NITRIDES; HIGH-SURFACE-AREA; ION BATTERIES; FUEL-CELLS; NANOTUBES; PRECURSOR; HYDROGEN; MOS2; WO3;

D O I：

10.1016/j.ceramint.2016.10.111

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Meso- and macroporous tungsten disulfide (WS2) and tungsten nitride (W2N) powders were successfully synthesized by reduction of [WO3/colloidal silica] composites under hydrogen sulfide and ammonia gases respectively. The colloidal silica, marketed as LudoZ (R), was used as a hard template and its removal from the composite led to a porosity release. The products were characterized by X-ray diffraction, nitrogen adsorption, mercury porosimetry and electron microscopy. Well-crystallized samples with specific surfaces areas close to similar to 40 m(2) g(-1) were thus synthesized. The present approach might be easily extended to the synthesis of other nitrides and sulfides materials.

引用

页码：1443 / 1448

页数：6

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