Temperature Optimized Ammonia and Ethanol Sensing Using Ce Doped Tin Oxide Thin Films in a Novel Flow Metric Gas Sensing Chamber
Joint Authors
Govardhan, K.
Nirmala Grace, Andrews
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-06-01
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
A simple process of gas sensing is represented here using Ce doped tin oxide nanomaterial based thin film sensor.
A novel flow metric gas chamber has been designed and utilized for gas sensing.
Doping plays a vital role in enhancing the sensing properties of nanomaterials.
Ce doped tin oxide was prepared by hydrothermal method and the same has been used to fabricate a thin film for sensing.
The microstructure and morphology of the prepared materials were analysed by SEM, XRD, and FTIR analysis.
The SEM images clearly show that doping can clamp down the growth of the large crystallites and can lead to large agglomeration spheres.
Thin film gas sensors were formed from undoped pure SnO2 and Ce doped SnO2.
The sensors were exposed to ammonia and ethanol gases.
The responses of the sensors to different concentrations (50–500 ppm) of ammonia and ethanol at different operating temperatures (225°C–500°C) were studied.
Results show that a good sensitivity towards ammonia was obtained with Ce doped SnO2 thin film sensor at an optimal operating temperature of 325°C.
The Ce doped sensor also showed good selectivity towards ammonia when compared with ethanol.
Pure SnO2 showed good sensitivity with ethanol when compared with Ce doped SnO2 thin film sensor.
Response time of the sensor and its stability were also studied.
American Psychological Association (APA)
Govardhan, K.& Nirmala Grace, Andrews. 2016. Temperature Optimized Ammonia and Ethanol Sensing Using Ce Doped Tin Oxide Thin Films in a Novel Flow Metric Gas Sensing Chamber. Journal of Sensors،Vol. 2016, no. 2016, pp.1-12.
https://search.emarefa.net/detail/BIM-1110610
Modern Language Association (MLA)
Govardhan, K.& Nirmala Grace, Andrews. Temperature Optimized Ammonia and Ethanol Sensing Using Ce Doped Tin Oxide Thin Films in a Novel Flow Metric Gas Sensing Chamber. Journal of Sensors No. 2016 (2016), pp.1-12.
https://search.emarefa.net/detail/BIM-1110610
American Medical Association (AMA)
Govardhan, K.& Nirmala Grace, Andrews. Temperature Optimized Ammonia and Ethanol Sensing Using Ce Doped Tin Oxide Thin Films in a Novel Flow Metric Gas Sensing Chamber. Journal of Sensors. 2016. Vol. 2016, no. 2016, pp.1-12.
https://search.emarefa.net/detail/BIM-1110610
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1110610