TU Darmstadt / ULB / TUbiblio

Synthesis and sensoric response of ZnO decorated carbon nanotubes

Khanderi, Jayaprakash and Hoffmann, Rudolf C. and Gurlo, Aleksander and Schneider, Jörg J. (2009):
Synthesis and sensoric response of ZnO decorated carbon nanotubes.
In: Journal of Materials Chemistry, RSC, pp. 5039-5046, 19, (28), ISSN 0959-9428, [Online-Edition: http://dx.doi.org/10.1039/b904822g],
[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 and Hoffmann, Rudolf C. and Gurlo, Aleksander and 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: 19
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
Official URL: http://dx.doi.org/10.1039/b904822g
Identification Number: doi:10.1039/b904822g
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.
Export:

Optionen (nur für Redakteure)

View Item View Item