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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 32, Number 6
BKCSDE 32(6)
June 20, 2011 

 
Title
Comparison of Bonding Characteristics of Hydrogen in Ti2Pd and Pd2Ti Alloys
Author
Dae-Bok Kang
Keywords
Hydrogen storage materials, Electronic structure, Extended Hückel calculations
Abstract
The electronic structure and bonding in Ti2Pd and Pd2Ti alloys with and without hydrogen as an interstitial atom were studied by performing extended Hückel tight-binding band calculations. The hydrogen absorption near an octahedral site is found to be a favorable process in Ti2Pd rather than in Pd2Ti. In metal hydrides, the metal-hydrogen bonding contribution is crucial to the stability of the system. The stronger interaction of hydrogen with Ti atoms in Ti2PdH2 than with Pd atoms in Pd2TiH2 is analyzed by perturbation theory.
Page
1879 - 1883
Full Text
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