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Chemically synthesized one-dimensional zinc oxide nanorods for ethanol sensing

Title data

Ahmad, Muhammad Z. ; Sadek, Abu Z. ; Latham, Kay ; Kita, Jaroslaw ; Moos, Ralf ; Wlodarski, Wojtek:
Chemically synthesized one-dimensional zinc oxide nanorods for ethanol sensing.
2012
Event: 14th International Meeting on Chemical Sensors - IMCS 2012 , 20.-23.05.2012 , Nürnberg, Germany.
(Conference item: Conference , Other Presentation type)
DOI: https://doi.org/10.5162/IMCS2012/3.3.3

Official URL: Volltext

Abstract in another language

One-dimensional (1D) zinc oxide (ZnO) nanorod (NR) based conductometric sensors have been developed and investigated towards ethanol vapor. The ZnO NRs were chemically synthesized onto alumina substrates with patterned interdigitated transducers (IDT) using a hydrothermal method. A seed layer of ZnO nanoparticles was pre-deposited onto the transducer substrates using a filtered cathodic vacuum arc (FCVA) technique. This seed layer was employed for the subsequent growth of NRs. Micro-characterization studies revealed that the grown ZnO has a rod like feature with an average diameter of 30 − 50 nm and an average length of 1.2 μm. The X-ray diffraction (XRD) analysis revealed that both ZnO seed layer and the NRs have a single crystal 1D nanostructure. The sensor performance was evaluated for ethanol vapor at operating temperatures from room to 330 °C. The study showed that the optimum operating temperature is in the range of 280 to 310 °C. At this temperature range, enhanced sensitivity, fast response and recovery with stable baseline were observed.

Further data

Item Type: Conference item (Other)
Refereed: Yes
Institutions of the University: Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Functional Materials > Chair Functional Materials - Univ.-Prof. Dr.-Ing. Ralf Moos
Faculties
Faculties > Faculty of Engineering Science > Chair Functional Materials
Profile Fields > Advanced Fields > Advanced Materials
Research Institutions > Research Centres > Bayreuth Center for Material Science and Engineering - BayMAT
Profile Fields
Profile Fields > Advanced Fields
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 15 Apr 2015 12:13
Last Modified: 14 Apr 2016 06:55
URI: https://eref.uni-bayreuth.de/id/eprint/10134