Elevating hydrogen production efficiency in dark fermentation: The role of cobalt-doped magnetite nanoparticles with sugarcane molasses

IF 8.1 2区工程技术 Q1 CHEMISTRY, PHYSICAL

International Journal of Hydrogen Energy Pub Date : 2025-04-04 DOI:10.1016/j.ijhydene.2025.03.353

Seif Eddine Lakroun , Khalida Boutemak , Ahmed Haddad , Krishnamoorthy Rambabu , Abdul Hai , Tarek Lemaoui , Srinivas Mettu , Fawzi Banat

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Abstract

This study investigates the enhancement of hydrogen production from sugarcane molasses through dark fermentation using magnetite nanoparticles (Fe₃O₄ NPs) and cobalt-doped magnetite nanoparticles (Co–Fe₃O₄ NPs). Hybrid nanoparticles are included to boost hydrogen yield towards the theoretical maximum. Fe₃O₄ and Co–Fe₃O₄ NPs are synthesized and characterized via hydrothermal methods. At an optimal dose of 300 mg/L, Co–Fe₃O₄ NPs increase hydrogen yield by 41.78 % and productivity by 46.13 % compared to the control. Metabolite analysis shows that acetate and butyrate pathways dominate hydrogen evolution. Co–Fe₃O₄ NPs enhance microbial growth and improve COD removal efficiency, achieving a maximum reduction of 53.30 %. Kinetic modeling with Gompertz and modified Logistic models aligns well with experimental data, indicating reduced lag phases and higher production rates. The results demonstrate that cobalt doping effectively boosts the performance of Fe₃O₄ NPs, offering a promising approach for maximizing hydrogen yield in biomass-based fermentation systems.

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来源期刊

International Journal of Hydrogen Energy 工程技术-环境科学

CiteScore

13.50

自引率

25.00%

发文量

3502

审稿时长

60 days

期刊介绍： The objective of the International Journal of Hydrogen Energy is to facilitate the exchange of new ideas, technological advancements, and research findings in the field of Hydrogen Energy among scientists and engineers worldwide. This journal showcases original research, both analytical and experimental, covering various aspects of Hydrogen Energy. These include production, storage, transmission, utilization, enabling technologies, environmental impact, economic considerations, and global perspectives on hydrogen and its carriers such as NH3, CH4, alcohols, etc. The utilization aspect encompasses various methods such as thermochemical (combustion), photochemical, electrochemical (fuel cells), and nuclear conversion of hydrogen, hydrogen isotopes, and hydrogen carriers into thermal, mechanical, and electrical energies. The applications of these energies can be found in transportation (including aerospace), industrial, commercial, and residential sectors.