Direct CO 2 -to-CO Conversion with H₂O on an In₂O₃ Photocatalyst Enabled by Atomically Precise Pd Sites

Key Points

• The study aims to enhance CO conversion efficiency using a specialized photocatalyst.
• Fabricated Pd single-atom-anchored In₂O₃ nanotubes via a MOF-templated strategy.
• Analyzed the structure and function using in situ X-ray photoelectron spectroscopy (XPS) and density functional theory (DFT) calculations.
• Investigated the effects of lattice-confined Pd-O-In coordination on charge separation and bandgap.
• The photocatalyst exhibited a narrowed bandgap, facilitating improved charge separation.
• In situ XPS confirmed the effectiveness of the single-atom coordination in enhancing catalytic performance.