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http://dx.doi.org/10.5369/JSST.2011.20.5.294

Effects of Additives on the DMMP Sensing Behavior of SnO2 Nanoparticles Synthesized by Hydrothermal Method  

Kim, Hong-Chan (Department of Materials Science and Engineering and Research Institute of Advanced Materials, Seoul National University)
Hong, Seong-Hyeon (Department of Materials Science and Engineering and Research Institute of Advanced Materials, Seoul National University)
Kim, Sun-Jung (Department of Materials Science and Engineering, Korea University)
Lee, Jong-Heun (Department of Materials Science and Engineering, Korea University)
Publication Information
Journal of Sensor Science and Technology / v.20, no.5, 2011 , pp. 294-299 More about this Journal
Abstract
$SnO_2$ nanoparticles were synthesized by a hydrothermal method and gas sensors were fabricated using nanoparticles to detect dimethyl methylphosphonate(DMMP) gas. The prepared $SnO_2$ nanoparticles exhibited a high response(72 at $500^{\circ}C$) to 5 ppm DMMP gas compared to commercial $SnO_2$ nanopowders, but their recovery was relatively poor. Various metals(Ni, Sb, Nb) were added to the $SnO_2$ nanoparticles to improve their recovery properties. The focus of this study was to investigate the effects of metal oxide additives on DMMP sensing behavior in $SnO_2$ nanoparticles.
Keywords
$SnO_2$; Sensor; DMMP; Recovery; Additive;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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