Emerging borophene two-dimensional nanomaterials for hydrogen storage

The growing demand for energy and the need to reduce the carbon footprint has made green hydrogen a promising alternative to traditional fossil fuels. Green hydrogen is produced using renewable energy sources, making it a sustainable and environmentally friendly energy source. Solid-state hydrogen storage aims to store hydrogen in a solid matrix, offering potential advantages such as higher safety and improved energy density compared to traditional storage methods such as compressed gas or liquid hydrogen. However, the development of efficient and economically viable solid-state storage materials is still a challenge, and research continues in this field. Borophene is a two-dimensional material that offers potential as an intermediate hydrogen storage material due to its moderate binding energy and reversible behavior. Its unique geometry and electronic properties also allow for higher hydrogen adsorption capacity than metal-based complex hydrides, surpassing the goals set by the U.S. Department of Energy. Borophene has shown great potential for hydrogen storage, but it is still not practical for commercial use. In this review, borophene nanomaterials chemical and physical properties are discussed, related to hydrogen storage and binding energy. The importance of borophene for hydrogen storage, the challenges it faces, and its future prospects are also being discussed.& COPY; 2023 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).