전기방사방법에 의해 합성된 ZnO 중공 나노섬유의 trimethylamine 가스 감응 특성
Trimethylamine Sensing Characteristics of Molybdenum Doped ZnO Hollow Nanofibers Prepared by Electrospinning
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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 H2 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 (Ra/Rg = 111.7, R a: resistance in air, Rg: resistance in gas) at 400oC, while the responses of pure ZnO hollow nanofibers was low (Ra/Rg = 47.1). 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.
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 H2 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 (Ra/Rg = 111.7, R a: resistance in air, Rg: resistance in gas) at 400oC, while the responses of pure ZnO hollow nanofibers was low (Ra/Rg = 47.1). 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.
참고문헌 (12)
- N. Yamazoe, "Toward innovations of gas sensor technology", Sens. Actuators B, 108, pp.2~14 (2005)
- 김보영, "Pt, Ni, Cr이 도포된 튜브형 SnO2 나노섬유의 합성과 가스 감응특성", 센서학회지, 23(3), pp.211~215 (2014), 한국센서학회[DOI]
- J. Xu, "Grain size control and gas sensing properties of ZnO gas sensor", Sens. Actuators B, 66, pp.277~279 (2000)
- S. -J. Kim, "Ultrasensitive and selective C2H5OH sensors using Rh-loaded In2O3 hollow spheres", J. Mater. Chem, 21, pp.18477~18848 (2011)
- A. M. Ruiz, "Cr-doped TiO2 gas sensor for exhaust NO2 monitoring", Sens. Actuators. B, 93, pp.509~518 (2003)
- S. Piperno, "WO3 nanofibers for gas sensing applications", J. Appl. Phys., 101, pp.124504~ (2007)
- W. Zheng, "Electrospinning route for α-Fe2O3 ceramic nanofibers and their gas sensing properties", Mater. Res. Bull, 44, pp.1432~1436 (2009)
- Y. H. Cho, "Highly selective and sensitive detection of trimethylamine using WO3 hollow spheres prepared by ultrasonic spray pyrolysis", Sens. Actuators B, 178, pp.971~977 (2013)
- Y. H. Cho, "Ultraselective and ultrasensitive detection of trimethylamine using MoO3 nanoplates prepared by ultrasonic spray pyrolysis", Sens. Actuators B, 195, pp.189~196 (2014)
- X. Chen, "Trimethylamine sensing properties of sensors based on MoO3 nanorods", Sens. Actuators B, 148, pp.399~403 (2010)
- R. Pandeeswari, "Nanostructured a- MoO3thin film as a highly selective TMA sensor", Biosens. Bioelectron., 53, pp.182~186 (2014)
- K. Mitsubayashi, "Trimethylamine biosensor with flavin-containing monooxygenase type 3(FMO3)for fish-freshness analysis", Sens. Actuators B, 103, pp.463~467 (2004)