CO and NO2 gas sensitivity of nanocrystalline tin dioxide thin films doped with Pd, Ru and Rh

被引：119
作者：
Safonova, OV
Delabouglise, G
Chenevier, B
Gaskov, AM
Labeau, M
机构：
[1] Inst Natl Polytech Grenoble, Lab Mat & Genie Phys, CNRS, UMR 5628, F-38402 St Martin Dheres, France
[2] Moscow MV Lomonosov State Univ, Dept Chem, Moscow 119899, Russia
来源：
MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS | 2002年 / 21卷 / 1-2期
关键词：
tin dioxide; Pd; Ru; Rh; CO; NO2 gas sensors;
D O I：
10.1016/S0928-4931(02)00068-1
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of Pd, Ru and Rh doping on microstructure, electrical, and gas sensor properties of nanocrystalline tin dioxide films is studied. SnO2 and SnO2(M) (M = Pd, Ru, Rh) films of 0.9-1-mum thickness and a doping metal content of 0.07-1.6 at.% are synthesized by aerosol pyrolysis. Studies at 50-400 degreesC of the evolution of conductivity of noble metal-doped tin dioxide films put in contact with gas mixtures containing small amounts of CO and NO2 give evidence of strong similarities of the interaction mechanisms. Correlations between the electrical response and oxygen affinity of noble metal clusters were found.
引用
收藏
页码：105 / 111
页数：7
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