Embedded ZnO nanorods and gas-sensing properties
Regular hexagonal embedded ZnO nanorods were successfully prepared by a simple hydrothermal method. The addition of urea as a homogeneous precursor was found to play a vital role in the embedding of secondary nanorods. The nanostructures were characterized by XRD, SEM, and EDS. The gas-sensing prope...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier Ltd and Techna Group S.r.l.
2015
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| Subjects: | |
| Online Access: | http://ir.unimas.my/id/eprint/10590/1/Tianmo.pdf http://ir.unimas.my/id/eprint/10590/ http://www.sciencedirect.com/science/article/pii/S0272884214019658 |
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| Institution: | Universiti Malaysia Sarawak |
| Language: | English |
| Summary: | Regular hexagonal embedded ZnO nanorods were successfully prepared by a simple hydrothermal method. The addition of urea as a homogeneous precursor was found to play a vital role in the embedding of secondary nanorods. The nanostructures were characterized by XRD, SEM, and EDS. The gas-sensing properties of secondary grown embedded nanorods were reported for formaldehyde, ethanol, methanol, acetone, and ammonia at different concentrations and temperatures. A higher response and greater selectivity toward formaldehyde than other gases was observed. A sharp response with the best recovery time was achieved at an optimum temperature of 200 °C. |
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