title: Hydrogen storage materials: room-temperature wet-chemistry approach toward mixed-metal borohydrides.
abstract: The poor kinetics of hydrogen evolution and the irreversibility of the hydrogen discharge hamper the use of transition metal borohydrides as hydrogen storage materials, and the drawbacks of current synthetic methods obstruct the exploration of these systems. A wet-chemistry approach, which is based on solvent-mediated metathesis reactions of precursors containing bulky organic cations and weakly coordinating anions, leads to mixed-metal borohydrides that contain only a small amount of "dead mass". The applicability of this method is exemplified by Li[Zn2(BH4)5] and M[Zn(BH4)3] salts (M=Na, K), and its extension to other systems is discussed.
authors.affiliation: Centre of New Technologies, University of Warsaw, Żwirki i Wigury 93, 02-089 Warsaw (Poland). tjaron@uw.edu.pl.
authors.forename: Tomasz
authors.initials: T
authors.lastname: Jaroń
authors.forename: Piotr A
authors.initials: PA
authors.lastname: Orłowski
authors.forename: Wojciech
authors.initials: W
authors.lastname: Wegner
authors.forename: Karol J
authors.initials: KJ
authors.lastname: Fijałkowski
authors.forename: Piotr J
authors.initials: PJ
authors.lastname: Leszczyński
authors.forename: Wojciech
authors.initials: W
authors.lastname: Grochala
keywords: alkali metal halides; borohydrides; hydrogen storage; organic solvents; weakly coordinating anions