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Journal of Materials Science: Materials in Electronics
Erschienen in: Journal of Materials Science: Materials in Electronics 7/2018

02.01.2018

Ultra-fast responding C2H5OH sensors based on hierarchical assembly of SnO2 nanorods on cube-like α-Fe2O3

verfasst von: Lu Liu, Peng Song, Zhongxi Yang, Qi Wang

Erschienen in: Journal of Materials Science: Materials in Electronics | Ausgabe 7/2018

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Abstract

Designing a heterojunction structure between different band gap and energy level semiconducting materials is an effective way to enhance the gas sensing performance. In this work, a novel heterostructure composed of SnO2 nanorod/cube-like Fe2O3 was successfully prepared through a facile hydrothermal process. The morphology and microstructure were investigated by field emission scanning electron microscopy, X-ray diffraction and transmission electron microscopy. The result shows the length of the cube-like Fe2O3 is 400 nm. The Fe2O3 nanocubes are uniformly coated with a large amount of SnO2 nanorods with the length of about 70 nm. Gas sensing tests indicated that such hierarchical SnO2/Fe2O3 nanostructures exhibited the ultra-fast response (~ 1 s) and enhanced ethanol sensing property compared with pure cube-like Fe2O3, mainly because of the synergistic effect and heterojunction. In addition, this study on as-prepared SnO2/Fe2O3 hierarchical assembly may provide insights and strategies for designing various novel hierarchical nanostructures for gas sensors.
Vorheriger Artikel Effects of CIP compaction pressure on piezoelectric properties of K0.5Na0.5NbO3
Nächster Artikel A facile strategy for ZnFe2O4 coating preparing by electrophoretic deposition and its supercapacitor performances

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Metadaten
Titel
Ultra-fast responding C2H5OH sensors based on hierarchical assembly of SnO2 nanorods on cube-like α-Fe2O3
verfasst von
Lu Liu
Peng Song
Zhongxi Yang
Qi Wang
Publikationsdatum
02.01.2018
Verlag
Springer US
Erschienen in
Journal of Materials Science: Materials in Electronics / Ausgabe 7/2018
Print ISSN: 0957-4522
Elektronische ISSN: 1573-482X
DOI
https://doi.org/10.1007/s10854-017-8511-0

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