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