Enhancing hydrogen storage efficiency: Surface-modified boron nanosheets combined with IRMOF-20 for safe and selective hydrogen storage

0582003 - ÚACH 2025 RIV GB eng J - Journal Article
Zabelin, D. - Tomšíková, K. - Zabelina, A. - Šťastný, Martin - Michalcová, A. - Mestek, S. - Burtsev, V. - Guselnikova, O. - Miliutina, E. - Kolská, Z. - Švorčík, V. - Lyutakov, O.
Enhancing hydrogen storage efficiency: Surface-modified boron nanosheets combined with IRMOF-20 for safe and selective hydrogen storage.
International Journal of Hydrogen Energy. Roč. 57, FEB (2024), s. 1025-1031. ISSN 0360-3199. E-ISSN 1879-3487
Institutional support: RVO:61388980
Keywords : Boron nanosheets * Hydrogen storage * Metal organic frameworks
OECD category: Inorganic and nuclear chemistry
Impact factor: 7.2, year: 2022
Method of publishing: Limited access
https://doi.org/10.1016/j.ijhydene.2023.12.285

The future development of human society is closely related to the development of new energy approaches which frequently will be based on green hydrogen. In this regard, one of the key research subjects is the elaboration of new materials for safe and effective hydrogen storage and transportation. In this work, we propose a hybrid hydrogen storage material based on boron nanosheets with surface-immobilized IRMOF-20. Surface immobilization was carried out in two-step procedure using covalent modification of the nanosheets surface and subsequent surface-assisted growth of IRMOF-20 from its mother liquor. Both materials (i. e. boron and IRMOF-20) have previously been reported as effective media for the hydrogen chemical sorption. However, along with a number of advantages, they have specific drawback such as low capacity or insufficient stability at higher pressure. Our main idea was to compensate the drawbacks by materials combination and enhance their effectivity in hydrogen storage. Developed materials combination exhibits high hydrogen gravimetric sorption capacity (significantly superior to boron flakes and even surpassed IRMOF-20 powder), high material stability (even at relatively high pressures) and high selectivity to hydrogen, in comparison with others, “parasitic” gases.
Permanent Link: https://hdl.handle.net/11104/0350139