Mechanochemistry of (Bi)Metallic Amidoboranes – Synthesis, Characterisation and Perspective

Milanović, Igor; Biliškov, Nikola Mechanochemistry of (Bi)Metallic Amidoboranes – Synthesis, Characterisation and Perspective. In: Biliškov, Nikola; Karadeniz, Bahar; Pantalon Juraj, Natalija, (eds.) Solid-State Science & Research 2023 - Book of Abstracts. Zagreb, Ruđer Bošković Institute, p. 68 .

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Abstract

Mechanochemistry is a very useful liquidless technique for synthesis of (bi)metallic amidoboranes [1-3]. Successful syntheses are obtained in solid state reactions of ammonia borane (borazane, NH3BH3) with alkali metal hydrides (NaH, LiH) and alkaline earth metal hydrides (CaH2 and MgH2), by using the PMMA and stainless steel (Fig. 1) milling jars. On such a way we synthesized two monometallic (NaNH2BH3, LiNH2BH3) and four bimetallic amidoboranes (Na2Mg(NH2BH3)4, Li2Mg(NH2BH3)4, Na2Ca(NH2BH3)4, Li2Ca(NH2BH3)4. Although all compounds show high gravimetric H2 storage capacity and low H2 desorption temperatures, their main problem still stays unsolved – rehydrogenation. Having that in mind there is one fundamental question – are (bi)metallic amidoboranes prominent materials for solid state hydrogen storage?

Item Type:

Conference or workshop item published in conference proceedings (UNSPECIFIED)

Uncontrolled Keywords:

mechanochemistry; ammonia borane; amidoborane; hydrogen storage

Subjects:

NATURAL SCIENCES > Chemistry > Physical Chemistry
NATURAL SCIENCES > Chemistry > Inorganic Chemistry

Divisions:

Division of Materials Chemistry

Projects: