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Materials 2012, 5(4), 566-574; doi:10.3390/ma5040566

Chemical Bonding of AlH3 Hydride by Al-L2,3 Electron Energy-Loss Spectra and First-Principles Calculations

1
Department of Materials, Physics and Energy Engineering, Nagoya University, Chikusa, Nagoya 464-8603, Japan
2
Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
3
Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
*
Author to whom correspondence should be addressed.
Received: 30 January 2012 / Revised: 20 March 2012 / Accepted: 22 March 2012 / Published: 30 March 2012
(This article belongs to the Special Issue Recent Advances in Hydrogen Storage Materials)
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Abstract

In a previous study, we used transmission electron microscopy and electron energy-loss (EEL) spectroscopy to investigate dehydrogenation of AlH3 particles. In the present study, we systematically examine differences in the chemical bonding states of Al-containing compounds (including AlH3) by comparing their Al-L2,3 EEL spectra. The spectral chemical shift and the fine peak structure of the spectra were consistent with the degree of covalent bonding of Al. This finding will be useful for future nanoscale analysis of AlH3 dehydrogenation toward the cell.
Keywords: AlH3; chemical bonding; EELS; first principles calculation AlH3; chemical bonding; EELS; first principles calculation
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Tatsumi, K.; Muto, S.; Ikeda, K.; Orimo, S.-I. Chemical Bonding of AlH3 Hydride by Al-L2,3 Electron Energy-Loss Spectra and First-Principles Calculations. Materials 2012, 5, 566-574.

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