Phosphate Buffer-Induced Depletion of Nickel Redox Sites Limits Oxygen Evolution on Stainless Steel Anodes

Puntos clave

• To investigate how phosphate buffer impacts nickel redox sites and oxygen evolution on stainless steel anodes during electrolysis.
• Analyzed the effects of phosphate buffers on nickel redox sites.
• Examined oxygen evolution reactions in neutral to mildly alkaline conditions.
• Assessed the influence of pH fluctuations and mass transport limitations on electrolysis efficiency.
• Phosphate buffer depletion reduces available nickel redox sites.
• Limited oxygen evolution observed under conditions of high current.
• Mass transport limitations negatively affect overall electrolysis efficiency.