Issue 2, 2009
From the journal:

Physical Chemistry Chemical Physics

Improved hydrogen storage properties of a V decorated Mg nanoblade array

Yuping He*a  and  Yiping Zhaoa  

* Corresponding authors

a Department of Physics and Astronomy, and Nanoscale Science and Engineering Center, University of Georgia, Athens, USA
E-mail: yphe@physast.uga.edu
Fax: +1 706 542 2492
Tel: +1 706 542 8109

Abstract

An ultra-thin layer of V has been coated onto the surface of individual Mg nanoblades by dynamic shadowing growth. This 2.25 at% V decorated Mg nanoblade array can absorb and desorb hydrogen rapidly at temperatures T≥ 500 K after activation by one hydrogen cycle, with a low hydrogen absorption activation energy of 35.0 ± 1.2 kJ per mol H2 and a desorption activation energy of 65.0 ± 0.3 kJ per mol H2. The improved hydrogen sorption kinetics is attributed to both the catalytic effect of the V coating and the unique nanoblade morphology with a large surface area and small hydrogen diffusion length.

Graphical abstract: Improved hydrogen storage properties of a V decorated Mg nanoblade array

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Article information

DOI
https://doi.org/10.1039/B815924F
Article type
Communication
Submitted
11 Sep 2008
Accepted
04 Nov 2008
First published
18 Nov 2008

Phys. Chem. Chem. Phys., 2009,11, 255-258

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Improved hydrogen storage properties of a V decorated Mg nanoblade array

Y. He and Y. Zhao, Phys. Chem. Chem. Phys., 2009, 11, 255 DOI: 10.1039/B815924F

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