The Influence of Wide Range Humidity on Hydrogen Detection with Sensors Based on Nano-SnO2 Materials

被引：0
|
作者：
Pavelko, R. G. [1 ]
Vasiliev, A. A. [1 ]
Llobet, E. [1 ]
Vilanova, X. [1 ]
Correig, X. [1 ]
Sevastyanov, V. G. [2 ]
机构：
[1] Univ Rovira & Virgili, Dept Elect, DEEEA, Av Paisos Catalans 26, Tarragona 43007, Spain
[2] RAS, NS Kurnakov Inst Gen & Inorgan Chem, Moscow 119991, Russia
来源：
OLFACTION AND ELECTRONIC NOSE, PROCEEDINGS | 2009年 / 1137卷
关键词：
Gas Sensor; SnO2; Humidity Effect; Hydrogen detection; Hydrogen Fuel Cell; TIN(IV) OXIDE; WORK FUNCTION; TIN OXIDE; SURFACE; SNO2; OXYGEN; WATER; CATALYSTS; DIOXIDE;
D O I：
暂无
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The effect of environmental humidity on sensor signal to 1000 ppm of H-2 in air was investigated in a wide range of relative humidity (RH) and sensor operation temperature. To prepare sensing material we used highly dispersed nano-SnO2 with 3-5 nm particle size and surface area similar to 150 m(2)/g. Blank SnO2, SnO2 doped with Pd 1%, and SnO2 doped with Pt 1% were used as materials for sensors. FTIR spectroscopy was employed to study water chemisorption on the surface of blank and doped SnO2. Sensor signal measurements were performed in conditions close to equilibrium at 0, 20, 50 and 80% RH in the temperature range 30-600 degrees C. The effect of humidity on H-2 detection mechanism is discussed.
引用
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页码：29 / +
页数：2
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