An Updated Review on Biomass-based Hydrogen Production

One of the most significant renewable energy sources in the coming decades will be hydrogen. Recently, most of the hydrogen in the world has been produced using fossil fuels and their derivatives. Hydrogen can also be produced from readily available biomass. The biomass-based methods have several advantages, such as eco-friendliness, carbon neutrality, and renewable energy sources. Before the commercialization of hydrogen as a fuel, some technological, economic, and environmental challenges must be overcome. This article provides an updated review of the concept of green or biohydrogen, the importance of hydrogen in different fields, and biomass-based production methods. A total of 127 articles have been reviewed and cited in this manuscript.