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Synthesis and Characterization of Strontium Ferrites Nanocomposites for Green Fuel Desulfurization
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Author(s): N. S. Mohan (Erode Sengunthar Engineering College, India), S. Malathi (Vellalar College for Women, India), V. Vijayalakshmi (Erode Sengunthar Engineering College, India)and G. Myvizhi (Vellalar College for Women, India)
Copyright: 2026
Pages: 12
Source title:
Evolving Approaches to Fuel Desulfurization With Nanocomposites
Source Author(s)/Editor(s): Tawfik A. Saleh (King Fahd University of Petroleum and Minerals, Saudi Arabia)
DOI: 10.4018/979-8-3373-5966-3.ch002
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Abstract
SrFe2O4 nanoparticles were synthesized via a citrate–nitrate sol–gel assisted auto-combustion route and investigated as efficient heterogeneous catalysts for biodiesel production from mustard seed oil. Transesterification was carried out under varying conditions of catalyst loading, methanol-to-oil molar ratio, reaction time, and temperature. The catalyst exhibited excellent activity, achieving a maximum fatty acid methyl ester (FAME) yield of 88% at optimized conditions of 100 mg catalyst loading, 3:1 methanol-to-oil ratio, 100 minutes of reaction, and 80 °C temperature. The catalytic mechanism involved Lewis acid sites (Sr2+, Fe3+) facilitating triglyceride activation and methanol adsorption, leading to efficient conversion of triglycerides into FAMEs. Gas chromatography (GC-FID) confirmed the composition of the obtained biodiesel, which complied with ASTM standards. Reusability studies demonstrated that the catalyst maintained 81% activity after five cycles and 69% after eight cycles, indicating high durability and stability. A comparative evaluation with reported ferrite and titanate-based nanocatalysts revealed that SrFe2O4 offers a competitive and cost-effective pathway for biodiesel synthesis under mild conditions.
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