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Improved Hydrogen Storage Properties of Ti‐Doped Sodium Alanate Using Titanium Nanoparticles as Doping Agents
Author(s) -
Bogdanović B.,
Felderhoff M.,
Kaskel S.,
Pommerin A.,
Schlichte K.,
Schüth F.
Publication year - 2003
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200304711
Subject(s) - hydrogen storage , materials science , dehydrogenation , doping , dopant , tin , nanoparticle , titanium , chemical engineering , inorganic chemistry , nanotechnology , catalysis , metallurgy , organic chemistry , optoelectronics , alloy , chemistry , engineering
By using nanosized doping agents , the properties of Ti‐catalyzed NaAlH 4 storage systems are considerably improved. Hydrogenation–dehydrogenation cyclic testing shows that with nanosized TiN dopants, storage capacities of 5 wt.‐% H 2 could be achieved. Doping with nanosized Ti brought hydrogenation times close to those required for practical applications, combined with high capacity (4.5 wt.‐% H 2 , see Figure).