期刊
ACS APPLIED MATERIALS & INTERFACES
卷 4, 期 2, 页码 744-751出版社
AMER CHEMICAL SOC
DOI: 10.1021/am2013882
关键词
CuO; Gas sensor; hierarchical structure; Ag-CuO; porous structure
资金
- Startup Fund for Distinguished Scholars [10JDG132]
- National Natural Science Foundation of China [51102117, 51072071]
- China Postdoctoral Science Foundation [2011M500116]
Hierarchically porous CuO architectures were successfully fabricated via copper basic carbonate precursor Obtained with a facile hydrothermal route. The shape of the precursor is preserved after its conversion to porous CuO architectures by calcination. The obtained CuO are systemically characterized by X-ray powder diffraction, scanning electron microscopy, transmission electron microscopy, and Brunauer-Emmett-Teller N-2 adsorption-desorption analysis. The results reveal that hierarchical CuO microspheres are monoclinic structure and are assembled by porous single-crystal submicroplatelets. The Brunauer-Emmett-Teller N-2 adsorption-desorption analysis indicates that the obtained CuO has a surface area of 12.0 m(2)/g with pore size of around 30 nm. The gas sensing performance of the as prepared hierarchical CuO micruspheres were investigated towards a series of typical organic solvents and fuels. They exhibit higher sensing response than that of commercial CuO powder. Their sensing properties can be further improved by loading of Ag nanopartides on them, suggesting their potential applications in gas sensors.
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