Details

Autor(en) / Beteiligte

• Yan, S.H.
• Ma, S.Y.
• Li, W.Q.
• Xu, X.L.
• Cheng, L.
• Song, H.S.
• Liang, X.Y.

Titel

Synthesis of SnO2–ZnO heterostructured nanofibers for enhanced ethanol gas-sensing performance

Ist Teil von

• Sensors and actuators. B, Chemical, 2015-12, Vol.221, p.88-95

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2015

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• SnO2–ZnO hetero-nanofibers were fabricated by a facile electrospinning method and calcination in this study. The SnO2–ZnO nanofibers were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), Brunauer–Emmett–Teller (BET) and X-ray diffraction (XRD). The gas sensor prepared by the SnO2–ZnO hetero-nanofibers revealed better ethanol sensing performance than pure ZnO and pure SnO2 nanofibers, good stability and excellent selectivity at the optimum temperature of 300°C. The response and recovery time to 100ppm ethanol were about 25s and 9s, respectively. The growth mechanism of the hetero-nanofibers was discussed, as well as the ethanol adsorption–desorption mechanism.