Highlights•DF is limited by low yields, hence integration with secondary energy recovery
methods is essential.•Efficient pretreatments for biomass with improved reactor designs …

Biohydrogen could be considered as a clean and attractive substitute for fossil fuels and can
progress to a sustainable hydrogen-oriented economy in the years to come. In recent years …

Hydrogen has emerged as a promising alternative because it can be derived from a
renewable energy sources and used in fuel cells with high efficiency and thus appears as …

Recently, hydrogen gas is becoming the most prominent alternative fuel due to its clean and
environment-friendly nature. It only delivers water as a waste product during the operation …

Hydrogen is considered as the fuel of the future by virtue of the fact that it is carbon-neutral
renewable energy source having the highest energy content per unit mass of any known …

Dark fermentation of organic biomass, ie agricultural residues, agro-industrial wastes and
organic municipal waste is a promising technology for producing renewable biohydrogen. In …

Hydrogen production by biological methods, particularly dark fermentation, has recently
gained in interest for the scientific as well as the socio-economic communities. This theme …

Among different technologies of hydrogen production, bio-hydrogen production exhibits
perhaps the greatest potential to replace fossil fuels. Based on recent research on dark …

Biohydrogen is a green energy carrier with the potential to reduce our dependency on fossil
fuels. The production of biohydrogen from lignocellulosic materials may be low cost, but …

Currently, the use of alternative renewable energies is broadly supported in many countries,
some of which are seriously evaluating the possibility of using hydrogen as an alternative …