Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 115, Issue 13, Pages 5522-5529Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp111785t
Keywords
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Funding
- Natural Science Foundation of China (NSFC) [20731002, 10876002, 20871016, 91022006, 20973023]
- 111 Project [B07012]
- Program for New Century Excellent Talents in University
- State Key Laboratory of Explosion Science and Technology
- Beijing Institute of Technology [ZDKT08-01, YBKT09-13]
- Specialized Research Fund for the Doctoral Program of Higher Education [200800070015, 20101101-110031]
- Beijing Municipal Commission [Z09010300820902]
- Key Foundation of China Academy of Engineering Physics [2009A0302017]
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In this work, highly ordered Zn2SnO4 three-dimensional flowerlike superstructures assembled with nanorods have been synthesized by a facile one-step hydrothermal route at 180 degrees C. The products were characterized by X-ray diffraction, field-emission scanning electron microscopy, transmission electron microscopy, and selected-area electron diffraction. The morphology of the final products was found to depend strongly on the concentrations of EDA and CTAB used. A possible mechanism for the formation of self-assembled Zn2SnO4 flowerlike superstructures is proposed. In addition, the novel Zn2SnO4 three-dimensional superstructures exhibited good gas-sensing properties that are even better than those of the competing binary metal oxide alpha-Fe2O3 and In2O3 sensors. The excellent gas-sensing properties make this material interesting not only for use in sensor devices, but also for a number of related electrochemical applications.
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