Maximized Synergistic Interaction of Pd Single Atoms with CuCo₂S₄ Nanosheets Catalysts for High‐Efficiency Photocatalytic H₂ Production and O₂ Reduction via Enhanced Charge Separation and Transfer

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 30, 2025

Abstract The photocatalytic conversion of naturally abundant molecules into value‐added products is a key solution for sustainable development, addressing energy and environmental challenges. This study introduces simple, eco‐friendly one‐step hydrothermal method synthesizing atomically dispersed Pd single‐atom catalysts (SACs) on CuCo 2 S 4 semiconductor nanosheets, designed these applications. structure SA ‒CuCo investigated by aberration‐corrected transmission electron microscopy X‐ray absorption fine (XAFS) spectroscopy. novel synthesis process ensures strong coordination between the SAs sulfur ions nanosheet surface, reducing overall charge transfer resistance, making them ideal photogenerated capture based asymmetric density distribution. 0.10Pd SAC (0.1 wt.% loading) achieves visible‐light‐driven H production rate 39550 µmol g ‒1 h with notable apparent quantum efficiency 15.57% (at 420 nm wavelength) high stability. same can facilitate reduction O to via oxygen reaction (ORR), achieving an ‒to‒H 19200 negligible decomposition produced . proposed strategy herein offers new insights enhanced nanosheets overcoming mass‐transfer limitations.

Language: Английский

Self-reconfiguration of catalyst surface to CoNiOOH for efficient overall water splitting

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 140, P. 194 - 203

Published: May 30, 2025

Language: Английский