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Trimethylamine Sensing Characteristics of Molybdenum doped ZnO Hollow Nanofibers Prepared by Electrospinning
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 Title & Authors
Trimethylamine Sensing Characteristics of Molybdenum doped ZnO Hollow Nanofibers Prepared by Electrospinning
Kim, Bo-Young; Yoon, Ji-Wook; Lee, Chul-Soon; Park, Joon-Shik; Lee, Jong-Heun;
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 Abstract
Pure and Mo-doped ZnO hollow nanofibers were prepared by single capillary electrospinning and their gas sensing characteristics toward 5 ppm ethanol, trimethylamine (TMA), CO and were investigated. The gas responses and responding kinetics were dependent upon sensing temperature and Mo doping. Mo-doped ZnO hollow nanofibers showed high response to 5 ppm TMA (, : resistance in air, : resistance in gas) at , while the responses of pure ZnO hollow nanofibers was low (). In addition, the doping of Mo enhanced selectivity toward TMA. The enhancement of gas response and selectivity to TMA by Mo doping to ZnO nanofibers was discussed in relation to the interaction between basic analyte gas and acidic additive materials.
 Keywords
ZnO nanofiber;Molybdenum;Gas sensor;Oxide semiconductor;Electrospinning;
 Language
Korean
 Cited by
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