Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 114, Issue 35, Pages 14684-14691Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp100792c
Keywords
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Funding
- National Nature Science Foundation [50672075]
- MOE [B08040]
- Xi' an Science and Technology Foundation [XA-AM-200905, XA-AM-200906]
- Fundamental Research Foundation of NPU [NPU-FFR-200703]
- SKLSP Research Fund of China [40-QZ-2009]
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Multi layered ZnO nanosheets with three-dimensional (3D) porous architectures were synthesized by calcining a layered precursor of zinc hydroxide carbonate. The structural properties were investigated using X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and selected-area electron diffraction techniques. It was observed that the concentration of the urea was the key parameter determining the final morphology. Room-temperature photoluminescence data showed interesting optical properties of the ZnO architectures. Gas sensing tests showed that these 3D porous ZnO architectures were highly promising for gas sensor applications, as the gas diffusion and mass transportation in sensing materials were significantly enhanced by their unique structures. Our results indicate that the 3D porous ZnO nanosheets have potential applications in fabricating optoelectrical devices and gas sensors.
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