Ethanol chemiresistor with enhanced discriminative ability from acetone based on Sr-doped SnO2 nanofibers
Data(s) |
01/01/2015
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Resumo |
We demonstrated a new metal oxides based chemiresistor (MOC), which exhibits fast response/recovery behavior, large sensitivity, and good selectivity to ethanol, enabled by Sr-doped SnO2 nanofibers via simple electrospinning and followed by calcination. Transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD), and X-ray photoelectron spectra (XPS) were carefully used to characterize their morphology, structure, and composition. The ethanol sensing performances based on Sr-doped SnO2 nanofibers were investigated. Comparing with the pristine SnO2 nanofibers, enhanced ethanol sensing performances (more rapid response/recovery behavior and larger response values) have been achieved owing to the basic SnO2 surface caused by Sr-doping, whereas the acetone sensing performances have been weakened. Thus, good discriminative ability to ethanol from acetone has been realized. Additionally, Sr-doped SnO2 nanofibers also exhibit good selectivity. |
Identificador | |
Idioma(s) |
eng |
Publicador |
Elsevier |
Relação |
http://dro.deakin.edu.au/eserv/DU:30067774/wang-ethanolchemiresistor-2015.pdf http://www.dx.doi.org/10.1016/j.jcis.2014.09.056 |
Direitos |
2014, Elsevier |
Palavras-Chave | #Electrospinning #Ethanol sensor #Rapid #Selectivity #Sensitive #Sr-functionalized SnO2 |
Tipo |
Journal Article |