Ruthenium nanoparticles decorated with surface hydroxyl and borate species boost overall seawater splitting via increased hydrophilicity

Abstract

The use of seawater electrolysis for hydrogen production faces several serious challenges including rapid deactivation of electrocatalysts through chloride anion (Cl-) induced corrosion. We have demonstrated that Ru nanoparticles possessing...

4d-Metal Ion Ru3+-Incorporation in Prussian Blue Analogue-Derived Anodic NiFe(O)OH and Cathodic NiFe(OH)2 Nanosheets Promotes Electrochemical Seawater Splitting

“…After the CA test, a positive shift of ∼4 cm –1 was observed toward a higher value compared to that of the fresh catalyst (Figure S26). , …”

“…The Raman spectra of Ru−NiFe(O)OH before the stability test indicated the peaks at 464, 508, and 534 cm −1 for the δ(Ni III −OO), v(Ru III −O), and ν(Fe III −O) bands, respectively. 56,57 After the CA test, a positive shift of ∼6 cm −1 was observed toward a higher value compared to that of the fresh catalyst (Figure S25). Furthermore, Raman spectra of Ru−NiFe(OH) 2 before the stability test showed peaks at 473, 503, and 551 cm −1 for δ(Ni II −O), v(Ru III −O), and ν(Fe II −O) bands, respectively.…”