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Hydrothermal synthesis of SnO2 nanocorals, nanofragments and nanograss and their formaldehyde gas-sensing properties.
- Source :
-
Materials Science in Semiconductor Processing . Dec2013, Vol. 16 Issue 6, p1495-1501. 7p. - Publication Year :
- 2013
-
Abstract
- Abstract: Morphology plays an important role in the properties of nanomaterials. We successfully synthesized three new SnO2 morphologies, nanocorals, nanofragments and nanograss, via a simple hydrothermal method with surfactant additives. The final products were characterized by field-emission scanning electron microscopy and X-ray diffraction. We found that the surfactants played a critical role in the synthesis of different SnO2 nanostructures. In particular, when poly(ethylene glycol) was added as a surfactant, a unique grass-like structure was obtained. The mechanism of formation for this novel structure is discussed. The gas-sensing performance of all the products was investigated. The results show that the nanograss morphology had a superior gas response to formaldehyde than the other morphologies. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 13698001
- Volume :
- 16
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Materials Science in Semiconductor Processing
- Publication Type :
- Academic Journal
- Accession number :
- 90512899
- Full Text :
- https://doi.org/10.1016/j.mssp.2013.04.016