Regulating Ni oxidation states through ruthenium incorporation in Ni based catalysts

Key Points

• OER activity significantly varies with different ruthenium morphologies present in nickel catalysts.
• The study indicates that dispersed sub-nanometric Ru clusters stabilize high-valent Ni, enhancing catalytic performance.
• Observational analysis explores the implications of ruthenium loading on nickel nanowires and their oxidation states.
• This highlights the need for precise control of Ru morphology to optimize catalyst efficiency, with further studies required for scalability.