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AuNi alloy on Au electrodes for hydrogen evolution reaction: Towards a cleaner tomorrow: Researchers show the hydrogen evolution reaction activity of AuNi/Au electrocatalyst increases due to surface defects formed via Ni dealloying

Summary by Science Daily
Gold (Au)-based electrocatalysts used for hydrogen production via water electrolysis exhibit high chemical stability but low hydrogen evolution reaction (HER) activity. Alloying them with nickel (Ni) can improve their HER activity. A recent study investigated the HER activity and surface properties of AuNi alloy prepared on single crystal Au surfaces, revealing the atomic structural changes and surface sites responsible for enhanced HER activity…
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