期刊
ANALYST
卷 138, 期 6, 页码 1758-1763出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2an36380a
关键词
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资金
- National Natural Science Foundation of China [21271177]
- National Basic Research Program of China [2010CB934103]
- Knowledge Innovation Program of the Chinese Academy of Sciences (CAS) [KGCX2-YW-111-5]
- Hundred Talents Program of CAS
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry (TIPC)
- CAS
In this work, nanostructured copper oxide of varied morphologies and high surface area were prepared by calcination of copper oxalate precursors, and were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, thermogravimetric analysis and differential thermal analysis, and nitrogen adsorption-desorption measurements. The sphere-like CuO (specific surface area: 73 m(2) g(-1)) functionalized QCM resonators were fabricated and explored for HCN sensing. The sensitivity (10 s HCN exposure) of sphere-like CuO functionalized QCM resonators reached as high as 6.53 Hz mu g(-1). The reproducibility and stability of sphere-like CuO functionalized QCM resonators was excellent, and the selectivity was very high with a converse response to examined common chemicals. The high surface area CuO functionalized QCM sensors may be applicable for HCN gas sensing.
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