Dual Mo‐Doping in BiVO 4 /FeCoNiO x Photoanode Enables Near‐Theoretical Photocurrent Density via Synergistic Bulk‐Surface Engineering for Solar Water Splitting

) by 1.26 eV. Moreover, the optimized interfacial charge transport boosts carrier separation efficiency from 84.9% to 96.5% and accelerates hole migration by 2.7-fold compared to pristine BiVO₄. This work provides insights into multi-scale electronic engineering for solar energy conversion.