ScholarlyCommons: Repository

Title

Hydrogenation of Mg film and Mg nanoblade array on Ti coated Si substrates

Author(s)

Yuping He, University of Georgia
Yiping Zhao, University of Georgia
Liwei Huang, SUNY Binghamton
Howard Wang, SUNY Binghamton
Russell J. Composto, University of PennsylvaniaFollow

Document Type

Journal Article

Date of this Version

10-23-2008

Comments

Hydrogenation of Mg film and Mg nanoblade array on Ti coated Si substrates Yuping He, Yiping Zhao, Liwei Huang, Howard Wang, and Russell J. Composto, Appl. Phys. Lett. 93, 163114 (2008), DOI:10.1063/1.3003880

Copyright (year) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

Publisher URL: http://link.aip.org/link/?APPLAB/93/163114/1

Abstract

The hydrogenation of Mg film and Mg nanoblade array fabricated on Ti coated Si substrates has been studied and compared. The nanoblades start to absorb hydrogen at a temperature between 250 and 300 degrees C, which is much lower than 350 degrees C for Mg film. However, the saturated total hydrogen uptake in nanoblades is less than half of that in the film, resulting from MgO formation by air exposure. The nanoblade morphology with large surface area and small hydrogen diffusion length, and the catalytic effect of Ti layer, are two main reasons for the nanoblade hydrogenation behavior.

Keywords

MAGNESIUM FILMS, HYDRIDE, STORAGE, DEPOSITION, SURFACES, SORPTION, NI, PD