Abstract
Transition metals and their alloys are expected to have high catalytic activities for hydrogen evolution reaction due to their partially filled d orbitals fitting for the gain and loss of electrons. The poor corrosion resistance, however, limits their applications as electrocatalysts in acidic and alkaline electrolytes. In this work, we report that high entropy alloy (HEA, Ni20Fe20Mo10Co35Cr15) with high corrosion resistance can be functioned as highly active and stable electrocatalyst for the hydrogen evolution reaction in both acidic and basic electrolytes. The HEA requires an overpotential of only 107 mV in acidic solutions and 172 mV in the basic solution at current density of 10 mA cm−2, which are much better than that of the dual-phase counterpart and even comparable to that of Pt sheet and most reported nanostructured noble-metal-free catalysts, for hydrogen evolution reaction in both acidic and alkaline solutions.
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.
