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Title: | Development of a Novel Method for the Fabrication of Nanostructured Zr(x)Ni(y) Catalyst to Enhance the Desorption Properties of MgH2 |
Authors: | Shokano, G Dehouche, Z Galey, B Postole, G |
Keywords: | zirconium nickel nanocatalyst;magnesium hydride;hydrogen storage |
Issue Date: | 30-Jul-2020 |
Publisher: | MDPI AG |
Citation: | Catalysts, 10 (8), pp. 849 - 849 |
Abstract: | © 2020 by the authors. The present work involves the development of a novel method for the fabrication of zirconium nickel (Zr(x)Ni(y)) alloy used as a nanocatalyst to improve the hydrogen storage properties of the Mg/MgH2 system. The catalyst was fabricated through the high-pressure reactor and activated under hydrogen prior to being mechanically milled with the MgH2 for 5 h under argon. The microstructure characterisation of the samples was determined via SEM-EDX (scanning electron microscope analysis–energy dispersive X-ray spectroscopy), XRD (X-ray diffraction) and FE-HRTEM (field emission high resolution transmission electron microscopy), and the desorption characteristic of the nanocomposite (10 wt.% Zr(x)Ni(y)–MgH2) was determined via TPD (temperature-programmed desorption). The nanostructured MgH2 powder milled with 10 wt.% of the activated Zr(x)Ni(y) based nanocatalyst resulted in a faster hydrogen release—5.9 H2-wt.% at onset temperature 210 °C/peak temperature 232 °C. The observed significant improvement in the hydrogen desorption properties was likely to be the result of the impact of the highly dispersed catalyst on the surface of the Mg/MgH2 system, the reduction in particle size during the ball milling process and/or the formation of Mg0.996Zr0.004 phase during the milling process.</jats:p> |
URI: | https://bura.brunel.ac.uk/handle/2438/21352 |
DOI: | https://doi.org/10.3390/catal10080849 |
ISSN: | 2073-4344 |
Appears in Collections: | Dept of Mechanical and Aerospace Engineering Research Papers |
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