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A multidisciplinary combinatorial approach for tuning promising hydrogen storage materials towards automotive applications

DOI: 10.1039/c0fd00018c DOI Help

Authors: A. Amieiro-Fonseca (Johnson Matthey Technology Centre) , S. R. Ellis (Johnson Matthey Technology Centre) , C. J. Nuttall (Johnson Matthey Technology Centre) , B. E. Hayden (Ilika Technologies) , S. Guerin (Ilika Technologies) , G. Purdy (Ilika Technologies) , J.-P. Soulie (Ilika Technologies) , S. K. Callear (ISIS Pulsed Neutron and Muon Source) , S. D. Culligan (University of Oxford) , W. I. F. David (ISIS Facility; University of Oxford) , P. P. Edwards (University of Oxford) , M. O. Jones (ISIS Facility; University of Oxford) , S. R. Johnson (University of Oxford) , A. H. Pohl (ISIS Facility)
Co-authored by industrial partner: Yes

Type: Journal Paper
Journal: Faraday Discussions , VOL 151 , PAGES 369-384

State: Published (Approved)
Published: May 2011
Diamond Proposal Number(s): 501291

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.

Diamond Keywords: Hydrogen Storage

Subject Areas: Chemistry, Energy, Materials

Instruments: I11-High Resolution Powder Diffraction

Other Facilities: Swiss-Norwegian Beam Line (SNBL) at ESRF

Added On: 01/04/2011 11:26

Discipline Tags:

Surfaces Automotive Energy Storage Earth Sciences & Environment Sustainable Energy Systems Energy Physics Climate Change Chemistry Materials Science interfaces and thin films Engineering & Technology Inorganic Chemistry

Technical Tags:

Diffraction X-ray Powder Diffraction