Abstract
Mechanical alloying (MA) process was used to synthesize the nanocrystalline Mg 2Cu and nanocomposite Mg 2Cu/Pd hydrogen storage materials. The structure of these materials has been examined by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Thermodynamic and electrochemical properties have also been investigated. The mechanical alloying for 18 h led directly to the formation of the orthorhombic-type structure with a crystallite sizes of about 30 nm. The results show that the maximum absorption capacity reaches 2.25 wt.% for nanocrystalline Mg 2Cu alloy. This is lower than in the polycrystalline Mg 2Cu alloy (2.6 wt.%) because of a significant amount of strain, chemical disorder and defects introduced into the material during the mechanical alloying process. On the other hand, mechanically coated Mg 2Cu alloy with palladium has effectively reduced the degradation rate of the studied electrode material.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
