Recent advances in sustainable hydrogen production from microalgae: Mechanisms, challenges, and future perspectives

The depletion of fossil fuel reserves has resulted from their application in the industrial and energy sectors. As a result, substantial efforts have been dedicated to fostering the shift from fossil fuels to renewable energy sources via technological advancements in industrial processes. Microalgae...

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Published in:	Ecotoxicology and environmental safety 2024-01, Vol.270, p.115908-115908, Article 115908
Main Authors:	Jiao, Haixin, Tsigkou, Konstantina, Elsamahy, Tamer, Pispas, Konstantinos, Sun, Jianzhong, Manthos, Georgios, Schagerl, Michael, Sventzouri, Eirini, Al-Tohamy, Rania, Kornaros, Michael, Ali, Sameh S
Format:	Article
Language:	eng
Subjects:	Bio-photolysis Biofuel Biofuels Biomass Bioreactor Bioreactors Electro-biohydrogenation Fermentation Fossil Fuels Genetic engineering Hydrogen Microalgae Microalgae-based biohydrogen
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Summary:	The depletion of fossil fuel reserves has resulted from their application in the industrial and energy sectors. As a result, substantial efforts have been dedicated to fostering the shift from fossil fuels to renewable energy sources via technological advancements in industrial processes. Microalgae can be used to produce biofuels such as biodiesel, hydrogen, and bioethanol. Microalgae are particularly suitable for hydrogen production due to their rapid growth rate, ability to thrive in diverse habitats, ability to resolve conflicts between fuel and food production, and capacity to capture and utilize atmospheric carbon dioxide. Therefore, microalgae-based biohydrogen production has attracted significant attention as a clean and sustainable fuel to achieve carbon neutrality and sustainability in nature. To this end, the review paper emphasizes recent information related to microalgae-based biohydrogen production, mechanisms of sustainable hydrogen production, factors affecting biohydrogen production by microalgae, bioreactor design and hydrogen production, advanced strategies to improve efficiency of biohydrogen production by microalgae, along with bottlenecks and perspectives to overcome the challenges. This review aims to collate advances and new knowledge emerged in recent years for microalgae-based biohydrogen production and promote the adoption of biohydrogen as an alternative to conventional hydrocarbon biofuels, thereby expediting the carbon neutrality target that is most advantageous to the environment.
ISSN:	0147-6513 1090-2414