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Synthesis of nanostructured copper oxide via oxalate precursors and their sensing properties for hydrogen cyanide gas.
- Source :
-
Analyst . 2013, Vol. 138 Issue 6, p1758-1763. 6p. - Publication Year :
- 2013
-
Abstract
- 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 m2 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 μg−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. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00032654
- Volume :
- 138
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Analyst
- Publication Type :
- Academic Journal
- Accession number :
- 100866011
- Full Text :
- https://doi.org/10.1039/c2an36380a