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- E-ISSN 2288-8985
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Electrochemical gas sensor based on Pt-Ru-Mo/MWNT electrocatalysts and vinyl ionic liquids as electrolyte
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2015, v.28 no.1, pp.8-16
https://doi.org/10.5806/AST.2015.28.1.8
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(2015). Electrochemical gas sensor based on Pt-Ru-Mo/MWNT electrocatalysts and vinyl ionic liquids as electrolyte. Analytical Science and Technology, 28(1), 8-16, https://doi.org/10.5806/AST.2015.28.1.8
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Abstract
We prepared a novel electrochemical gas sensor (EG sensor) based on interdigitated electrode (IDE)coated with vinyl ionic liquids (ILs) as electrolyte and Pt-Ru-Mo/MWNT electrocatalysts for occurring redoxactiveof CNCl gas. The vinyl ILs such as 1-butyl-3-(vinylbenzyl)imidazolium chloride, [BVBI]+Cl−, and 3-hexyl-1-vinylimidazolium bromide, [HVI]+Br−, were synthesized by SN2 reaction in order to use electrolyte. The Pt-Ru-Mo/MWNT electrocatalysts were also prepared by one-step radiation-induced reduction of metal ionsin the presence of MWNTs as supports. The fabricated EG sensor with vinyl ILs electrolyte was evaluatedthrough optical microscopy (OM), scanning electron microscopy (SEM), and atomic force microscopy (AFM). The prepared EG sensor is clearly detected over 2.0 ppm CNCl gas and is exhibited a liner relationship betweencurrent and concentration over a region of 10-100 ppm.
- keywords
- Electrochemical gas sensor, Interdigitated electrode, Vinyl ionic liquids, Pt-Ru-Mo/MWNT electrocatalysts, One-step radiation-induced reduction, CNCl gas
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