Boronation of Biomass-Derived Materials for Hydrogen Storage

oleh: Andrea Lazzarini, Alessia Marino, Roberta Colaiezzi, Oreste De Luca, Giuseppe Conte, Alfonso Policicchio, Alfredo Aloise, Marcello Crucianelli

Format: Article
Diterbitkan: MDPI AG 2023-03-01

Deskripsi

In spite of the widespread range of hydrogen applications as one of the greenest energy vectors, its transportation and storage still remain among the main concerns to be solved in order to definitively kickstart a rapid takeoff of a sustainable H<sub>2</sub> economy. The quest for a simple, efficient, and highly reversible release storage technique is a very compelling target. Many studies have been undertaken to increase H<sub>2</sub> storage efficiency by exploiting either chemisorption or physisorption processes, or through entrapment on different porous solid materials as sorbent systems. Among these, biomass-derived carbons represent a category of robust, efficient, and low-cost materials. One question that is still open-ended concerns the correlation of H<sub>2</sub> uptake with the kind and number of heteroatoms as dopant of the carbonaceous sorbent matrix, such as boron, aiming to increase whenever possible bonding interactions with H<sub>2</sub>. Furthermore, the preferred choice is a function of the type of hydrogen use, which may involve a short- or long-term storage option. In this article, after a brief overview of the main hydrogen storage methods currently in use, all the currently available techniques for the boronation of activated carbonaceous matrices derived from recycled biomass or agricultural waste are discussed, highlighting the advantages and drawbacks of each of them.