Gas sensing response of NiO nanoparticle films made by reactive gas deposition

被引：85
作者：
Luyo, C. [2 ,3 ]
Ionescu, R. [4 ]
Reyes, L. F. [2 ,3 ]
Topalian, Z. [3 ]
Estrada, W. [2 ]
Llobet, E.
Granqvist, C. G. [3 ]
Heszler, P. [1 ]
机构：
[1] Univ Szeged, Hungarian Acad Sci, Res Grp Laser Phys, H-6701 Szeged, Hungary
[2] Univ Nacl Ingn, Fac Ciencias, Lima, Peru
[3] Uppsala Univ, Dept Engn Sci, Angstrom Lab, SE-75121 Uppsala, Sweden
[4] Univ Rovira & Virgili, Dept Elect Elect & Automat Engn, ES-43007 Tarragona, Spain
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 2009年 / 138卷 / 01期
关键词：
Nanoparticles; Nickel oxide; Gas sensing; THIN-FILM; SENSOR APPLICATIONS; OXIDE FILMS; H2S GAS; TEMPERATURES; SNO2; PARAMETERS;
D O I：
10.1016/j.snb.2008.11.057
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Nanocrystalline films comprised of NiO particles were prepared by advanced reactive gas evaporation and were investigated for gas sensing applications, specifically for detecting reducing (H2S) and oxidizing (NO2) species. The films were studied in as-deposited state and after annealing at temperatures up to 400,C, and the sensors were operated from room temperature to 325 degrees C. The optimal operating temperature was in the 150-162 degrees C range for H2S and in the 100-125 degrees C range for NO2. We believe that this is the first report of high-sensitivity detection of H2S with NiO-based sensors, as well as the first proof that such sensors can work at room temperature. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：14 / 20
页数：7
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