• • The dataset includes 312 files (14.5 MB) of Ni/Co phosphides synthesized via solvothermal phosphidization or electrodeposition, enabling systematic comparison of OER activity in 1 mol/L KOH.
• • Electrocatalytic parameters from LSV, CV, and EIS are provided, allowing quantitative analysis of how metal doping, solvent, precursors, and crystallinity affect OER performance.
• • The dataset serves as a benchmark for evaluating Ni/Co phosphide OER catalysts, facilitating design of more active materials for alkaline water electrolyzers.
• • The phosphides show potential for broader applications in hydrogen evolution, alcohol oxidation, CO2 reduction, and as electrode materials in metal-ion batteries and anticorrosion coatings.