RuCu Nanorod Arrays Synergistically Promote Efficient Water-Splitting

Le résumé fourni par la source

In the realm of green hydrogen energy, utilizing ruthenium (Ru) as a precious metal electrocatalyst for the hydrogen evolution reaction (HER) instead of platinum (Pt/C) is an excellent choice. Unfortunately, there are not enough active sites or electronic structures on a single Ru-based catalyst to significantly improve the oxygen evolution reaction (OER). Therefore, creating bifunctional water electrolysis catalysts that are stable and highly active in a variety of media continues to be a major challenge. The study describes a new method for creating an electrocatalyst (RuCuCl/NF-2) by using Ru to regulate an inert CuCl precursor. The enhanced mass transfer performance of the distinctive coral structure and the synergistic effect of RuCu emphasize its excellent water electrolysis activity, which is based on the self-assembly of Cu nanoparticles into a conical membrane structure. Overtaking the commercial benchmark Pt/C (~38 mV to reach 10 mA cm−2), the RuCuCl/NF-2 displays HER activity (~25 mV to reach 10 mA cm−2) in 1M KOH. This sheds light on how to create more sophisticated bifunctional electrocatalysts.

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