Morphology evolution of shape-selected copper nanocatalysts during pulsed reaction protocols: An operando SAXS study

We propose an operando SAXS/WAXS study at ESRF ID31 to investigate the morphology evolution of Cu nanocubes during pulsed electrochemical CO₂ reduction. By systematically varying pulse durations and potentials, we will track catalyst size, shape, and phase transformations. Linking these restructuring pathways to product selectivity will provide critical insight for optimizing CO₂RR protocols toward higher yields of valuable C2+ products.