The influence of molybdenum on the properties of SnO2 ceramic sensors

被引：25

作者：

Ivanovskaya, M ^{[1
]}

Lutynskaya, E ^{[1
]}

Bogdanov, P ^{[1
]}

机构：

[1] Belarusian State Univ, Sci & Res Inst Phys & Chem Problems, Minsk 220080, BELARUS

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 1998年 / 48卷 / 1-3期

关键词：

SnO2; MoO3; sensors;

D O I：

10.1016/S0925-4005(98)00076-8

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The properties of SnO2-MoO3 ceramic sensors for CH4 and CO detection and structural features of sensitive layers, containing different concentrations of Sn and Mo, have been studied. The sensitive layers were obtained by means of the sol-gel method-from tin hydroxide sols, stabilised with polyvinyl alcohol (PVA), with Mo6+ added. The structure of the ceramic layer corresponds to Mo6+ in SnO2, substitution solid solution (up to 25 at.% Mo) at all Mo6+ concentrations in sols. Mo5+ stabilises in SnO2, interstitial positions. At definite ratios of components and operating currents, SnO2-MoO3 sensors can selectively detect CO in CO + CH4 mixtures. (C) 1998 Elsevier Science S.A. All rights reserved.

引用

页码：387 / 391

页数：5

共 5 条

[1]

IVANOVSKAYA M, IN PRESS RUS J PHYS

[2] ELECTRON-PARAMAGNETIC-RES INVESTIGATION OF THE COORDINATION SPHERE OF MO5+ IONS ON THERMALLY REDUCED SILICA-SUPPORTED MOLYBDENUM CATALYSTS PREPARED BY THE GRAFTING METHOD [J].