Niobium pentoxide as a lean-range oxygen sensor

被引：21

作者：

Kohli, A ^{[1
]}

Wang, CC ^{[1
]}

Akbar, SA ^{[1
]}

机构：

[1] Ohio State Univ, Ctr Ind Sensors & Measurements, Columbus, OH 43210 USA

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 1999年 / 56卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

niobium pentoxide; lean-burn oxygen sensor; sensors;

D O I：

10.1016/S0925-4005(99)00191-4

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Niobium pentoxide (Nb2O5) has been investigated as a lean-burn oxygen sensor in the 400-800 degrees C temperature range. It shows excellent sensitivity and good reversibility upon exposure to increasing and decreasing oxygen partial pressures. In the 10 ppm to 100% oxygen partial pressure range, the response of Nb2O5 sensor is as fast as the YSZ sensor. There is a change in the resistance when Nb2O5 is exposed to CO, CH4 and CO2. However, this change in the resistance is mainly due to a change in the ambient oxygen partial pressure, though there might be a small amount of cross-sensitivity effect. This cross-sensitivity effect has been isolated for CO2. Humidity doesn't show much cross-sensitivity effect on the Nb2O5 sensor. (C) 1999 Elsevier Science S.A. All rights reserved.

引用

页码：121 / 128

页数：8

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