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Advanced Hydrogen‐Storage Materials Based on Sc‐, Ce‐, and Pr‐Doped NaAlH 4
Author(s) -
Bogdanović B.,
Felderhoff M.,
Pommerin A.,
Schüth F.,
Spielkamp N.
Publication year - 2006
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.200501367
Subject(s) - hydrogen storage , dopant , materials science , solid state , doping , hydrogen , kinetics , catalysis , metal , hydrogen molecule , chemical engineering , chemistry , metallurgy , organic chemistry , optoelectronics , physics , alloy , quantum mechanics , engineering
The most favorable dopants for solid‐state hydrogen‐storage materials are still considered to be compounds of titanium in spite of intensive research on other catalysts. Here, we show that NaAlH 4 doped with ScCl 3 is a highly efficient dopant, both with respect to storage capacity and kinetics: 2 mol % ScCl 3 exhibits a nearly theoretical hydrogen‐storage capacity (4.9 wt %, see graph). Other rare‐earth metal trichlorides are also investigated.