Validating NiOxHy as the HER promoter for Ni electrodes with in-situ Dip-and-Pull XPS
Nickel-based catalysts are the most promising alternative to replace platinum in hydrogen conversion devices in alkaline media. One approach to narrowing the performance gap between Pt and Ni is to fine-tune the nickel surface coverage by (hydr) oxide (NiOxHy) species, which determines its electrocatalytic activity for the hydrogen oxidation (HOR) and hydrogen evolution (HER) reactions. As Ni easi
