Effect of neem oil biodiesel on the surface and structural integrity of carbon steel alloy: Chromatographic, spectroscopic, and morphological investigations

Kenneth Kennedy Adama; Kingsley Eghonghon Ukhurebor; Kaushik Pal; Ismail Hossain

doi:10.1016/j.ijbiomac.2024.132199

Effect of neem oil biodiesel on the surface and structural integrity of carbon steel alloy: Chromatographic, spectroscopic, and morphological investigations

Int J Biol Macromol. 2024 May 7;269(Pt 2):132199. doi: 10.1016/j.ijbiomac.2024.132199. Online ahead of print.

Authors

Kenneth Kennedy Adama¹, Kingsley Eghonghon Ukhurebor², Kaushik Pal³, Ismail Hossain⁴

Affiliations

¹ Department of Chemical Engineering, Faculty of Engineering, Edo State University, Uzairue, Edo State, Nigeria. Electronic address: adama.kenneth@edouniversity.edu.ng.
² Department of Physics, Faculty of Science, Edo State University, Uzairue, Edo State, Nigeria. Electronic address: ukeghonghon@gmail.com.
³ University Centre for Research and Development (UCRD), Department of Physics, Chandigarh University, Mohali, Gharuan, Punjab, India. Electronic address: kaushikphysics@gmail.com.
⁴ Department of Nuclear and Renewable Energy, Ural Federal University, Yekaterinburg, 620002, Russia. Electronic address: hossain.ismail44@yahoo.com.

PMID: 38723824
DOI: 10.1016/j.ijbiomac.2024.132199

Abstract

This study explores the impacts of neem oil biodiesel (BD), which was produced and characterized using GC-MS, FTIR, and UV-Vis spectroscopic techniques to elucidate pure and corrosion-product neem oil BD at room temperature (25 °C) and different immersion durations of 0, 28, 42, and 56 days. The OM and SEM were also employed to study the surface, structural integrity, and interphase interaction between the BD and the carbon steel (C1020) before and after immersion for different durations. The dominant fatty acid (FA) group in both pure and corrosion-product neem oil BD was C₁₈, with a total composition of 72.3 %, hence determining the nature of the BD interaction with the carbon steel. The study revealed that carbon steel (C1020) was susceptible to attacks by neem oil BD, and the duration of immersion had substantial influence on the surface morphology and structural integrity of the steel. It is therefore anticipated that this study will significantly advance the field of alternative fuel research.

Keywords: Biodiesel; Carbon steel; Corrosion; Fuel; Neem oil; Renewable energy.