Study of the temperature-programmed reaction synthesis of early transition metal carbide and nitride catalyst materials from oxide precursors

被引：166

作者：

Claridge, JB ^{[1
]}

York, APE ^{[1
]}

Brungs, AJ ^{[1
]}

Green, MLH ^{[1
]}

机构：

[1] Univ Oxford, Inorgan Chem Lab, Wolfson Catalysis Ctr, Oxford OX1 3QR, England

来源：

CHEMISTRY OF MATERIALS | 2000年 / 12卷 / 01期

关键词：

D O I：

10.1021/cm9911060

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The synthesis of high surface area carbide and nitride materials from binary and ternary oxides of vanadium, niobium, tantalum, molybdenum, and tungsten, suitable for use as catalysts for a wide range of reactions, has been investigated via the temperature-programmed reaction (TPRe) method, in various gas mixtures. TPRe of oxides in CH4/H-2, C2H6/H-2, or NH3 yield materials with surface areas >40 m(2) g(-1). For the reaction with ethane or ammonia the reaction appears to proceed topotactically while that with methane does not; however, the conversion of nitrides to-carbides in CH4/H-2 does appear to proceed topotactically.

引用

页码：132 / 142

页数：11

共 86 条

[71] PHASE EQUILIBRIA AS RELATED TO CRYSTAL STRUCTURE IN SYSTEM NIOBIUM PENTOXIDE-TUNGSTEN TRIOXIDE [J].