CO2 sensing characteristics of Sm1-xBaxCoO3 (x = 0, 0.1, 0.15, 0.2) nanostructured thick film

SmCoO gas sensor has been developed with high sensitivity for CO gas by doping Ba. Nanostructured SmCoO and Sm1-xBaxCoO (x = 0, 0.1, 0.15, 0.2) were obtained by EDTA-Glycol method. The operation temperature falls and sensitivity increases from 425 to 370°C when Ba concentration in SmCoO changes from...

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Bibliographic Details
Published in:International journal on smart sensing and intelligent systems 2008-09, Vol.1 (3), p.613-622
Main Authors: Chaudhari, G.N., Padole, P.R., Jagatap, S.V., Pawar, M.J.
Format: Article
Language:English
Subjects:
Carbon dioxide
EDTA-Glycol Method
Gas Sensitivity
Gas sensors
Nanostructure
Nanostructures
Response time
Selectivity
Sensitivity
SmCoO
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Summary:SmCoO gas sensor has been developed with high sensitivity for CO gas by doping Ba. Nanostructured SmCoO and Sm1-xBaxCoO (x = 0, 0.1, 0.15, 0.2) were obtained by EDTA-Glycol method. The operation temperature falls and sensitivity increases from 425 to 370°C when Ba concentration in SmCoO changes from x = 0 to x = 0.1. Ag impregnation over Sm Ba CoO sensor, on exposure to CO at about 360°C showed an increased sensitivity as well as the response time also decreases. The possible CO sensing mechanism is proposed on the basis of available literatures.
ISSN:1178-5608
1178-5608
DOI:10.21307/ijssis-2017-310