Siddick, Siti Zubaidah and Rozali, Shaifulazuar and Wong, Yew Hoong and Yusof, Nabilah Mohamad (2024) Synthesis of graphene/tungsten carbide (WC) nanocomposites from palm oil via pulsed arc discharge in liquid medium: morphological, functional, and sas sensing characterization. Journal of Electronic Materials, 53 (11, SI). pp. 6914-6932. ISSN 0361-5235, DOI https://doi.org/10.1007/s11664-024-11371-8.
Full text not available from this repository.Abstract
With recent trends moving towards sustainable approaches in adherence to environmental, social, and governance (ESG) standards, research is actively focused on sustainable production of high-potential materials. In this study, a successful synthesis pathway was demonstrated for a graphene/tungsten carbide (WC) nanocomposite via pulsed arc discharge in liquid medium, utilizing crude palm oil and commercial cooking palm oil as liquid precursors. The synthesis of the graphene/WC nanocomposites was carried out by applying current with amplitude of 80 A and 100 A to the tungsten electrode immersed in the liquid palm oil, subjected to 150 arc discharges. A comparative investigation was performed to examine the morphological and functional characteristics of the materials synthesized from the different types of palm oil under different current conditions. In addition, the synthesized nanocomposites were assessed with respect to their gas sensing performance. Impressively, the CRG100(150) nanocomposite (produced from crude palm oil with current of 100 A) exhibited gas sensing response of 4.853% upon injection of 200 ppm of ethanol. The CRG100(150) nanocomposite also demonstrated short response and recovery time of 43 s and 182 s, respectively. Thus, the successful synthesis of CRG100(150), utilizing a natural precursor via arc discharge in liquid, paves the way for the development of sustainable gas sensing materials.
| Item Type: | Article |
|---|---|
| Funders: | Ministry of Education, Malaysia [Grant No: FP005-2018A (FRGS/1/2018/TK05/UM/02/11)], Institute of Management & Monitoring (IPPP), University of Malaya [Grant No: UMSFA2019] |
| Uncontrolled Keywords: | Graphene; Palm oil; Gas sensors; Arc discharge |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Faculty of Engineering > Department of Mechanical Engineering |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 17 Oct 2025 03:02 |
| Last Modified: | 17 Oct 2025 03:02 |
| URI: | http://eprints.um.edu.my/id/eprint/46519 |
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