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 DOI

Saloni Latiyan,

Dharmendra Kumar Yadav, Manash R. Das

et al.

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

Toward Complete CO2 Electroconversion: Status, Challenges, and Perspectives DOI Creative Commons
Changfan Xu,

Ping Hong,

Yulian Dong

et al.

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

Published: March 12, 2025

Abstract Electrocatalytic conversion of carbon dioxide (CO 2 ) into valuable carbon‐based fuels and chemicals represents a promising approach to closing the cycle setting circular economy. Nevertheless, for current electrocatalytic CO reduction reaction (ECO RR) systems, realizing 100% with simultaneously high overall rate (i.e., single‐pass conversion) Faradaic efficiency (FE) remains significant challenge. Enhancing often results in decrease FE, conversely, improving FE may limit rate. Metal–CO (M–CO batteries functions face similar challenges, particularly reversible M–CO batteries, which do not accomplish net because nearly all RR products are reoxidized during subsequent charging process. Such system neutrality poses substantial challenges. This perspective provides an in‐depth analysis state‐of‐the‐art ECO systems alongside main strategies employed address their respective The critical importance achieving both is underscored practical applications effectively close cycle. Furthermore, strategic roadmap that outlines future research directions presented, thereby facilitating advancement comprehensive electroconversion technologies.

Language: Английский

Citations

0
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 DOI

Saloni Latiyan,

Dharmendra Kumar Yadav, Manash R. Das

et al.

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

Citations

0