Mohd Chachuli, Siti Amaniah and Mohd Yatim, Fatin Liyana Syakinah and Shamsudin, Nur Hazahsha and Coban, Omer (2025) Enhancement of methane detection using graphene-doped zinc oxide with Blynk internet of things for real-time monitoring. Bulletin of Electrical Engineering and Informatics, 15 (1). pp. 219-227. ISSN 2089-3191
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Abstract
Methane is a potent greenhouse gas, significantly contributing to global warming gases when released into the atmosphere. Methane, a naturally occurring gas, has no harmful impacts on human life at low concentrations. As concentrations rise, symptoms like fatigue, headaches, nausea, irritability, and speech difficulties increase due to asphyxiation. Zinc oxide (ZnO) and graphene-doped ZnO gas sensors were fabricated using a screen-printing technique onto a Kapton film to compare their performance to methane gas at room temperature. A silver paste was used as the interdigitated electrode, deposited on the Kapton film using a screen-printing technique, and fired at 150 °C for 15 minutes. Next, ZnO and graphene-doped ZnO pastes were deposited onto the interdigitated electrode using a screen-printing technique and became the second layer of the gas sensor. The sensing layer was annealed at 200 °C for 60 minutes. All gas sensors responded well to methane gas at room temperature. As a comparison, the graphene-doped ZnO gas sensor responded better to 6,700 ppm of methane gas than the ZnO gas sensor at room temperature. The highest response of graphene-doped ZnO to methane gas was produced by 5 wt. % of graphene doped into ZnO with a response value of 11.5.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Binder, Kapton, Paste, Screen-printing, Thick film |
| Divisions: | Faculty Of Electronics And Computer Technology And Engineering |
| Depositing User: | Sabariah Ismail |
| Date Deposited: | 17 Mar 2026 04:57 |
| Last Modified: | 17 Mar 2026 04:57 |
| URI: | http://eprints.utem.edu.my/id/eprint/29605 |
| Statistic Details: | View Download Statistic |
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