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Ethanol-sensing properties of potassium bromide/multi-walled carbon nanotube composites

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Abstract

The work reported in this paper is related to the fabrication and electrical characterization of multi-walled carbon nanotubes (MWNT)-based solid composites pellets with potential application as gas sensor at room temperature, using potassium bromide as supporting material. Results show an electrical conductivity of the composites as a function of the MWNT loading following a power law associated with a percolation phenomenon. A variation of the electrical resistance of the composites as a function of ethanol concentration in a nitrogen atmosphere has also been observed, allowing detection of ethanol from about hundred of ppm. It is also shown the existence of an optimal MWNT loading for which the composite reaches its best ethanol-sensing performances.

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Acknowledgements

The authors wish to thank Benoit Duponchel for the SEM images and Fabrice Cazier and all the staff of Centre Commun de Mesures (CCM) for their help to the realization of the gas-sensing measurement setup.

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Authors and Affiliations

  1. UDSMM (EAC CNRS 4476), MREI-1, Université du Littoral Côte d’Opale, 145 avenue Maurice Schumann, 59140, Dunkerque, France

    Aoumeur Boulerouah, Stéphane Longuemart, Philippe Hus & Abdelhak Hadj Sahraoui

  2. Université Lille nord de France, 59000, Lille, France

    Aoumeur Boulerouah, Stéphane Longuemart, Philippe Hus & Abdelhak Hadj Sahraoui

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  1. Aoumeur Boulerouah
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  2. Stéphane Longuemart
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  3. Philippe Hus
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  4. Abdelhak Hadj Sahraoui
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Correspondence to Aoumeur Boulerouah.

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Boulerouah, A., Longuemart, S., Hus, P. et al. Ethanol-sensing properties of potassium bromide/multi-walled carbon nanotube composites. J Mater Sci 48, 8023–8028 (2013). https://doi.org/10.1007/s10853-013-7615-z

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  • DOI: https://doi.org/10.1007/s10853-013-7615-z

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