Direct Electrosynthesis of C3+ Hydrocarbons from CO2 via Size-Controlled Nickel Nanoislands on a Carbon Support

Direct synthesis of C₃₊ hydrocarbons via the electrochemical CO₂ reduction reaction is highly desirable for producing sustainable chemicals. However, this approach remains challenging due to the limited ability of current electrocatalysts to adsorb and couple key reaction intermediates effectively, with promising systems, such as Ni oxyhydroxide-derived catalysts, still exhibiting partial current densities toward C₃₊ hydrocarbons <0.9 mA cm^-2. …