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Type
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Conference
Paper
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Author
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S.
R. Anjum
|
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Author
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R.
S. Khairnar
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URL
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Pages
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24–28
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Date
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2016
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Abstract
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The
experimental study reports the performance of Carbon nanotubes ( CNT )
blended Hydroxyapatite ( HAp ) composites as a sensing material for the detection
of methanol vapours. The main objective of the work is to improve the
temperature dependent sensitivity of the sensor for lower methanol
concentration.
Moreover , the sensing ability of native HAp and CNT blended HAp thick films is studied in terms of operating temperature, response / recovery time, maximum detection limit. Thick films of the native and blended material s are fabricated via screen printing technique. The sensing parameters are studied using two probe electrical methods. The sensor substrate is made by means of doping of various concentration s of CNT in HAp. The sensing of methanol vapours is studied at a fixed concentration of 100 ppm. Native HAp substrate show s good sensitivity for methanol at room temperature; however its sensing performance is inferior to the CNT blended materials. The blended composites exhibit impressive sensing ability compared with native H A p in term s of sensitivity, response/ recovery time and maximum up take the limit . The sensing mechanism for methanol detection, the role of HAp as a parent material and CNT as an additive , is explained using a suitable sensing mechanism |
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Proceedings
Title
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Proceedings
of the 7th International Conference on Sensor Device Technology and
Applications (SENSORDEVICES’2016)
|
Monday, January 9, 2017
Development of Methanol Sensors: Carbon Nanotubes blended Hydroxyapatite Nano-ceramics
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