Gas sensing properties of mixed /spl alpha/ Fe/sub 2/O/sub 3/-SnO/sub 2/ nanoparticles prepared under hydrothermal conditions

This paper reports an investigation of the gas-sensitive properties of thick film sensors based on mixed nanosized oxides (1-x)/spl alpha/Fe/sub 2/O/sub 3/-xSnO/sub 2/ (x = 0.1-1.0), towards different reducing gases (CH/sub 4/, CO, H/sub 2/O). The samples were tested in the range of temperatures (20...

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Published in2004 International Semiconductor Conference. CAS 2004 Proceedings (IEEE Cat. No.04TH8748) Vol. 1
Main Authors Tomescu, A., Roescu, R., Dumitriu, I., Tarabasanu-Mihaila, D.
Format Conference Proceeding
LanguageEnglish
Published IEEE 2004
Subjects
Charge transfer
Chemical sensors
Electrons
Gas detectors
Gases
Iron
Nanoparticles
Powders
Substrates
Tin
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Abstract This paper reports an investigation of the gas-sensitive properties of thick film sensors based on mixed nanosized oxides (1-x)/spl alpha/Fe/sub 2/O/sub 3/-xSnO/sub 2/ (x = 0.1-1.0), towards different reducing gases (CH/sub 4/, CO, H/sub 2/O). The samples were tested in the range of temperatures (200-400/spl deg/C). The mixed oxides proved a real sensitivity to CH/sub 4/ being practically insensitive to detection limit of CO. The maximum response to CH/sub 4/ takes place at 330/spl deg/, where the water interference was also studied.
AbstractList This paper reports an investigation of the gas-sensitive properties of thick film sensors based on mixed nanosized oxides (1-x)/spl alpha/Fe/sub 2/O/sub 3/-xSnO/sub 2/ (x = 0.1-1.0), towards different reducing gases (CH/sub 4/, CO, H/sub 2/O). The samples were tested in the range of temperatures (200-400/spl deg/C). The mixed oxides proved a real sensitivity to CH/sub 4/ being practically insensitive to detection limit of CO. The maximum response to CH/sub 4/ takes place at 330/spl deg/, where the water interference was also studied.
Author Tarabasanu-Mihaila, D.
Roescu, R.
Tomescu, A.
Dumitriu, I.
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  fullname: Tarabasanu-Mihaila, D.
  organization: National Inst. of Material Phys., Bucharest-Magurele, Romania
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Snippet This paper reports an investigation of the gas-sensitive properties of thick film sensors based on mixed nanosized oxides (1-x)/spl alpha/Fe/sub 2/O/sub...
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SubjectTerms Charge transfer
Chemical sensors
Electrons
Gas detectors
Gases
Iron
Nanoparticles
Powders
Substrates
Tin
Title Gas sensing properties of mixed /spl alpha/ Fe/sub 2/O/sub 3/-SnO/sub 2/ nanoparticles prepared under hydrothermal conditions
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