| Issue |
E3S Web Conf.
Volume 355, 2022
2022 Research, Invention, and Innovation Congress (RI²C 2022)
|
|
|---|---|---|
| Article Number | 01005 | |
| Number of page(s) | 11 | |
| Section | Energy Technology | |
| DOI | https://doi.org/10.1051/e3sconf/202235501005 | |
| Published online | 12 August 2022 | |
A comparative study of the anticorrosive response of Tinospora cordifolia stem extract for Al and Cu in biodiesel-based fuels
Central Department of Chemistry, Tribhuvan University, Kirtipur 44619, Nepal
* Corresponding author: bhattarai_05@yahoo.com
The anticorrosive effect of methanol extract of Tinospora cordifolia stem for Al and Cu metals in pure biodiesel and its 10% blend with petrodiesel was investigated at 25±2 °C in a closed system by corrosion, inhibition efficiency, adsorption, and electrochemical tests. The corrosion inhibiting action of the plant extract for Cu in the biodiesel was more efficient than in the blend, while the extract showed more anticorrosive behavior of Al metal in the blend than in the biodiesel. Adsorption of the plant extract on the metal surface conformed to the Langmuir adsorption model. The plant extract functioned as a mixed-type corrosion inhibitor for both the metals in both biodiesel and its blend based on the experimental results. Outcomes of the study confirm the suggestive evidence to formulate the green extract-based biodiesel additives to enhance the anti-corrosive response for the Al and Cu metal parts of the vehicle engine. Nepal-origin Tinospora cordifolia stem extract could be used as an anticorrosive agent to control the corrosion of Al and Cu metals in biodiesel-based fuels.
Key words: Biodiesel / Corrosion inhibitor / Immersion test / Plant extract / Polarization
© The Authors, published by EDP Sciences, 2022
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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