Premium
Facile Formation of Thermodynamically Unstable Novel Borohydride Materials by a Wet Chemistry Route
Author(s) -
Jaroń Tomasz,
Wegner Wojciech,
Fijałkowski Karol J.,
Leszczyński Piotr J.,
Grochala Wojciech
Publication year - 2015
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201404968
Subject(s) - yttrium , hydrogen storage , chemistry , borohydride , inorganic chemistry , hydrogen , chemical engineering , organic chemistry , catalysis , oxide , engineering
A novel wet synthetic method utilizing weakly coordinating anions that yields LiCl‐free Zn‐based materials for hydrogen storage has recently been reported. Here we show that this method may also be applied for the synthesis of the pure yttrium derivatives, M[Y(BH 4 ) 4 ] (M=K, Rb, Cs). Moreover, it can be extended to the preparation of previously unknown thermodynamically unstable derivatives, Li[Y(BH 4 ) 4 ] and Na[Y(BH 4 ) 4 ]. Importantly, these two H‐rich phases cannot be accessed by standard dry (mechanochemical) or solid/gas synthetic methods due to the thermodynamic obstacles. Here we describe their crystal structures and selected important physicochemical properties.