Preparation of porous flower-like ZnO nanostructures and their gas-sensing property
作者： Cuiping Gu , Jiarui Huang , Youjie Wu , Muheng Zhai , Yufeng Sun
DOI: 10.1016/J.JALLCOM.2010.11.078
关键词:
摘要: Abstract Porous flower-like ZnO nanostructures have been synthesized by a template-free, economical hydrothermal method combined with subsequent calcination. Calcination of the precursors produced nanostructures, composed interconnected porous nanosheets high porosity resulting from thermal decomposition as-prepared precursors, i.e., basic zinc carbonate (BZC). Moreover, characterized through X-ray diffraction, thermogravimetric-differential thermalgravimetric analysis, scanning electron microscopy, transmission and Brunauer–Emmett–Teller N2 adsorption–desorption analyses. Compared nanorods, exhibit good response reversibility to some organic gas, such as ethanol acetone. The sensor responses 100 ppm acetone are 21.8 16.8, respectively, at working temperature 320 °C. In addition, sensors also exhibited 2-propanol methanol, which indicate that these highly promising for applications gas sensors.
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