Journal
FARADAY DISCUSSIONS
Volume 151, Issue -, Pages 369-384Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c0fd00018c
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Funding
- Technology Strategy Board (TSB) [AE155G, 200090]
- Engineering and Physical Sciences Research Council [EP/D062098/1, EP/D062381/1] Funding Source: researchfish
- EPSRC [EP/D062381/1, EP/D062098/1] Funding Source: UKRI
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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% H-2 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% H-2. 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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