A multidisciplinary combinatorial approach for tuning promising hydrogen storage materials towards automotive applications.
Faraday Discuss
; 151: 369-84; discussion 385-97, 2011.
Article
en En
| MEDLINE
| ID: mdl-22455081
ABSTRACT
HyStorM is a multidisciplinary hydrogen-storage project aiming to synthesise and tune materials hydrogen storage properties for automotive applications. Firstly, unique high-throughput combinatorial thin-film technologies are used to screen materials' hydrogen storage properties. Then promising thin-film candidate compositions are synthesised and examined in the bulk. In this paper, we report on our results within the ternary compositions Mg-Ti-B and Ca-Ti-B. Primary screening of the Mg-Ti-B ternary identified a high capacity hotspot corresponding to Mg0.36Ti0.06B0.58, with 10.6 wt% H2 capacity. Partial reversibility has been observed for this material in the thin-film. Bulk Ti-doped Mg(BH4)2 composites show rehydrogenation to MgH2 under the conditions used. The synthesised thin-film Ca-Ti-B ternary showed only low hydrogen storage capacities. In the bulk, Ti-doping experiments on Ca(BH4)2 demonstrated reversible storage capacities up to 5.9 wt% H2. Further characterisation experiments are required to decipher the role of the Ti-dopant in these systems in both films and in the bulk.
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Colección:
01-internacional
Base de datos:
MEDLINE
Idioma:
En
Revista:
Faraday Discuss
Asunto de la revista:
QUIMICA
Año:
2011
Tipo del documento:
Article
País de afiliación:
Reino Unido