Speaker
Ms
Mahlatse Manamela
(University of Limpopo)
Description
The mechano-chemical technique was employed to synthesise the undoped zinc oxide (ZnO), 5% cobalt (Co) and indium (In) single doped ZnO nanoparticles and Co-In double doped ZnO nanoparticles. The diffraction pattern for In-ZnO nanoparticles obtained from the X-ray diffraction (XRD) reveals an additional peak that is associated with the In+3 dopant. The scanning electron microscope (SEM) images shows the spherical morphology of the nanoparticles for all the prepared samples. The gas sensing properties of ZnO nanoparticles were probed using the kenosistec station equipment. The response and sensitivity of ZnO nanoparticles to methane (CH4) gas were investigated at different temperatures and gas concentrations. The Co-In double doped ZnO and Co-ZnO nanoparticles show great sensitivity to CH4 gas at the concentration of 20 and 40 ppm, respectively.The CH4 gas sensor seems to work better at lower temperatures and higher gas concentrations, which is good for monitoring the environment.
Supervisor details<br><b>If not a student, type N/A.</b><br>Student abstract submision<br>requires supervisor permission:<br>please give their name,<br> institution and email address.
TE Mosuang,University of Limpopo, thuto.mosuang@ul.ac.za
| Please confirm that you<br>have carefully read the<br>abstract submission instructions<br>under the menu item<br>"Call for Abstracts"<br><b>(Yes / No)</b> | Yes |
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| Consideration for<br>student awards<br><b>Choose one option<br>from those below.</b><br>N/A<br>Hons<br>MSc<br>PhD | MSc |
Primary authors
Ms
Mahlatse Manamela
(University of Limpopo)
Prof.
Thuto Mosuang
(University of Limpopo)
Co-author
Dr
Bonex Mwakikunga
(DST/CSIR National Centre for Nano-Structured Materials)
