In:
Journal of Materials Research, Springer Science and Business Media LLC, Vol. 29, No. 1 ( 2014-01-14), p. 55-63
Kurzfassung:
Confining light metal hydrides in micro- or mesoporous scaffolds is considered to be a promising way to overcome the existing challenges for these materials, e.g. their application in hydrogen storage. Different techniques exist which allow us to homogeneously fill pores of a host matrix with the respective hydride, thus yielding well defined composite materials. For this report, the ordered mesoporous carbon CMK-3 was taken as a support for LiAlH 4 realized by a solution impregnation method to improve the hydrogen desorption behavior of LiAlH 4 by nanoconfinement effects. It is shown that upon heating, LiAlH 4 is unusually oxidized by coordinated tetrahydrofuran solvent molecules. The important result of the herein described work is the finding of a final composite containing nanoscale aluminum oxide inside the pores of the CMK-3 carbon host instead of a metal or alloy. This newly observed unusual oxidation behavior has major implications when applying these compounds for the targeted synthesis of homogeneous metal–carbon composite materials.
Materialart:
Online-Ressource
ISSN:
0884-2914
,
2044-5326
DOI:
10.1557/jmr.2013.199
Sprache:
Englisch
Verlag:
Springer Science and Business Media LLC
Publikationsdatum:
2014
ZDB Id:
54876-5
ZDB Id:
2015297-8
