TITLE

Hydrogen diffusion in NaH as derived from isotope exchange experiments

AUTHOR(S)
Borgschulte, A.; Pendolino, F.; Gremaud, R.; Züttel, A.
PUB. DATE
March 2009
SOURCE
Applied Physics Letters;3/16/2009, Vol. 94 Issue 11, p111907
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report on hydrogen-deuterium-exchange experiments on NaH probed by thermogravimetry. From the measurements a diffusion parameter of deuterium in NaH of D=1.1×10-17 m2/s at 523 K is derived. The activation energy of tracer diffusion of D in NaH is found to be 1.0 eV. The results are hints for a diffusion process mediated by neutral hydrogen vacancies.
ACCESSION #
43230415

 

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