Abstract
Abstract The feasibility of obtaining Ni hydride through electrolytic reduction of aqueous 0.6 M K 2 CO 3 at Ni electrodes of different types (solid Ni, Ni-fiber composite and sintered Ni) was investigated. It was found that potentiostatic electrolyses at the beginning of the hydrogen evolution reaction (her) lead to the formation of several hydrogenated species of Ni, which generally become degraded when more negative potentials are applied. The species oxidized reversibly with the her was identified as the β -Ni hydride phase, whereas the nature of the Ni hydrides oxidized at more positive potentials could not be definitely established. The interaction of Ni samples on open circuit with H 2 dissolved in the electrolyte was found to form the same Ni hydride species as that achieved after electrolysis.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: 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.