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Ammonia sensors based on metal oxide nanostructures

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dc.contributor.author Rout, Chandra Sekhar
dc.contributor.author Hegde, Manu
dc.contributor.author Govindaraj, A
dc.contributor.author Rao, C N R
dc.date.accessioned 2012-02-09T10:43:19Z
dc.date.available 2012-02-09T10:43:19Z
dc.date.issued 2007-05-23
dc.identifier 0957-4484 en_US
dc.identifier.citation Nanotechnology 18(20), 205504-(1-9) (2007) en_US
dc.identifier.uri https://libjncir.jncasr.ac.in/xmlui/10572/363
dc.description Restricted Access en_US
dc.description.abstract Ammonia sensing characteristics of nanoparticles as well as nanorods of ZnO, In2O3 and SnO2 have been investigated over a wide range of concentrations ( 1-800 ppm) and temperatures ( 100-300 degrees C). The best values of sensitivity are found with ZnO nanoparticles and SnO2 nanostructures. Considering all the characteristics, the SnO2 nanostructures appear to be good candidates for sensing ammonia, with sensitivities of 222 and 19 at 300 degrees C and 100 degrees C respectively for 800 ppm of NH3. The recovery and response times are respectively in the ranges 12-68 s and 22-120 s. The effect of humidity on the performance of the sensors is not marked up to 60% at 300 degrees C. With the oxide sensors reported here no interference for NH3 is found from H-2, CO, nitrogen oxides, H2S and SO2. en_US
dc.description.uri http://dx.doi.org/10.1088/0957-4484/18/20/205504 en_US
dc.language.iso en en_US
dc.publisher IOP Publishing Ltd en_US
dc.rights © 2007 IOP Publishing Ltd en_US
dc.subject Sensing Characteristics en_US
dc.subject High-Sensitivity en_US
dc.subject Zinc-Oxide en_US
dc.subject Gas Sensor en_US
dc.subject In2o3 Ceramics en_US
dc.subject Zno Nanorods en_US
dc.subject Nh3 Gas en_US
dc.subject Nanowires en_US
dc.subject Hydrogen en_US
dc.subject Films en_US
dc.title Ammonia sensors based on metal oxide nanostructures en_US
dc.type Article en_US


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