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Synthesis of boron nitride nanosheets with a few atomic layers and their gas-sensing performance.
- Source :
-
Ceramics International . Jan2016 Part A, Vol. 42 Issue 1, p971-975. 5p. - Publication Year :
- 2016
-
Abstract
- We report a successful synthesis of hexagonal boron nitride ( h -BN) nanosheets with a few atomic layers by a facile yet efficient solvothermal method at the relatively low temperature. After identifying the pure h -BN phase by the X-ray diffraction, the ultrathin BN nanosheets were systematically characterized by field-emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectroscopy (EDS) element mapping and high-resolution transmission electron microscopy (HRTEM). We find that the h -BN nanosheet has a nearly transparent morphology with a thickness of ~1.36 nm (four atomic layers) and shows dozens of square microns in area. We test the gas-sensing properties of the ultrathin h -BN nanosheets towards ethanol and NH 3 , and find that the fabricated gas sensors show a fast response and excellent repeatability to ethanol at optimal operating temperature of 300 o C. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02728842
- Volume :
- 42
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Ceramics International
- Publication Type :
- Academic Journal
- Accession number :
- 110681587
- Full Text :
- https://doi.org/10.1016/j.ceramint.2015.08.109