Journal
SMALL
Volume 17, Issue 44, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.202102759
Keywords
hydrogen evolution; metal resources; nanocatalyst; nanosynthesis; recycling
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The review discusses the production of hydrogen from ammonia borane using nanoparticle-based catalysts, highlighting the importance of catalyst preparation, control, and understanding of electronic structures. Various transition metals are examined for their cost, availability, and performance in hydrogen production.
Dihydrogen is one of the sustainable energy vectors envisioned for the future. However, the rapidly reversible and secure storage of large quantities of hydrogen is still a technological and scientific challenge. In this context, this review proposes a recent state-of-the-art on H-2 production capacities from the dehydrogenation reaction of ammonia borane (and selected related amine-boranes) as a safer solid source of H-2 by hydrolysis (or solvolysis), catalyzed by nanoparticle-based systems. The review groups the results according to the transition metals constituting the catalyst with a mention to their current cost and availability. This includes the noble metals Rh, Pd, Pt, Ru, Ag, as well as cheaper Co, Ni, Cu, and Fe. For each element, the monometallic and polymetallic structures are presented and the performances are described in terms of turnover frequency and recyclability. The structure-property links are highlighted whenever possible. It appears from all these works that the mastery of the preparation of catalysts remains a crucial point both in terms of process, and control and understanding of the electronic structures of the elaborated nanomaterials. A particular effort of the scientific community remains to be made in this multidisciplinary field with major societal stakes.
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