Khanderi, Jayaprakash ; Hoffmann, Rudolf C. ; Gurlo, Aleksander ; Schneider, Jörg J. (2009):
Synthesis and sensoric response of ZnO decorated carbon nanotubes.
In: Journal of Materials Chemistry, 19 (28), pp. 5039-5046. RSC, ISSN 0959-9428,
[Article]
Abstract
ZnO nanoparticles of size 2–10 nm were generated in situ from the single source precursor [2-(methoxyimino)propanoato]zinc(II), ([CH3ONCCH3COO]2Zn·2H2O) onto multiwalled carbon nanotubes (MWCNTs) at low temperature (150 °C). The degree of ZnO coverage on the MWCNTs can be tuned and is dependent upon the ZnO precursor concentration. A plausible growth mechanism based on surface saturation of as-deposited precursor on the MWCNTs has been proposed. The X-ray diffraction (XRD) pattern and transmission electron microscopy (TEM) indicate the nano-crystalline nature of the ZnO particles. Scanning electron microscopy (SEM) and TEM investigations of the ZnO deposition revealed a dense and homogeneous deposition along the complete periphery of the MWCNT. The ZnO/MWCNT nanocomposite hybrid materials were further electronically characterized by micro-Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), ultraviolet-visible spectroscopy (UV-Vis) as well as room temperature photoluminescence (PL). The nanostructured ZnO/MWCNT composite shows a better sensing performance when compared to bare MWCNTs in the detection of low CO levels (20–200 ppm).
| Item Type: | Article |
|---|---|
| Erschienen: | 2009 |
| Creators: | Khanderi, Jayaprakash ; Hoffmann, Rudolf C. ; Gurlo, Aleksander ; Schneider, Jörg J. |
| Title: | Synthesis and sensoric response of ZnO decorated carbon nanotubes |
| Language: | English |
| Abstract: | ZnO nanoparticles of size 2–10 nm were generated in situ from the single source precursor [2-(methoxyimino)propanoato]zinc(II), ([CH3ONCCH3COO]2Zn·2H2O) onto multiwalled carbon nanotubes (MWCNTs) at low temperature (150 °C). The degree of ZnO coverage on the MWCNTs can be tuned and is dependent upon the ZnO precursor concentration. A plausible growth mechanism based on surface saturation of as-deposited precursor on the MWCNTs has been proposed. The X-ray diffraction (XRD) pattern and transmission electron microscopy (TEM) indicate the nano-crystalline nature of the ZnO particles. Scanning electron microscopy (SEM) and TEM investigations of the ZnO deposition revealed a dense and homogeneous deposition along the complete periphery of the MWCNT. The ZnO/MWCNT nanocomposite hybrid materials were further electronically characterized by micro-Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), ultraviolet-visible spectroscopy (UV-Vis) as well as room temperature photoluminescence (PL). The nanostructured ZnO/MWCNT composite shows a better sensing performance when compared to bare MWCNTs in the detection of low CO levels (20–200 ppm). |
| Journal or Publication Title: | Journal of Materials Chemistry |
| Volume of the journal: | 19 |
| Issue Number: | 28 |
| Publisher: | RSC |
| Divisions: | 11 Department of Materials and Earth Sciences > Material Science > Dispersive Solids 07 Department of Chemistry > Fachgebiet Anorganische Chemie 11 Department of Materials and Earth Sciences > Material Science 11 Department of Materials and Earth Sciences 07 Department of Chemistry |
| Date Deposited: | 12 Apr 2012 11:21 |
| URL / URN: | http://dx.doi.org/10.1039/b904822g |
| Identification Number: | doi:10.1039/b904822g |
| PPN: | |
| Funders: | Our work is supported through the Deutsche Forschungsgemeinschaft (DFG)., We thank the Ernst-Ruska-Zentrum, J€ulich (Prof. J. Meyer, Dr. L. Houben, Dr. A. Lysberg) for making our TEM studies at Jülich possible. |
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