Author
Listed:
- Yuanxing Chen
(Wuhan Institute of Technology
Central China Normal University)
- Ying Qin
(Central China Normal University)
- Mingwang Liu
(Central China Normal University)
- Wenhong Yang
(Central China Normal University)
- Yiwei Qiu
(Central China Normal University)
- Wen Li
(Wuhan Institute of Technology
Central China Normal University)
- Lirong Zheng
(Chinese Academy of Sciences)
- Wenling Gu
(Central China Normal University)
- Chengzhou Zhu
(Central China Normal University)
- Liuyong Hu
(Wuhan Institute of Technology)
Abstract
Energy level mismatches between semiconductors and cocatalysts often induce carrier recombination, limiting photocatalytic and photoelectrochemical (PEC) efficiency. Here, we integrate Pt nanocluster-Fe single-atom pairs with CuO to regulate both solid-solid and solid-liquid interfaces in PEC systems. Experimental and theoretical analyses reveal that an Ohmic contact at the CuO/Pt interface accelerates electron extraction, while Pt-to-Fe charge transfer enhances oxygen reduction at Fe sites, collectively boosting reaction kinetics. Leveraging this, we construct a PEC biosensor exploiting chelating effect of glyphosate on CuO to impede electron transfer, achieving a detection limit of 0.41 ng/mL. This interface engineering strategy advances cocatalyst design for enhanced energy conversion and sensing applications by simultaneously addressing carrier dynamics and interfacial reaction barriers.
Suggested Citation
Yuanxing Chen & Ying Qin & Mingwang Liu & Wenhong Yang & Yiwei Qiu & Wen Li & Lirong Zheng & Wenling Gu & Chengzhou Zhu & Liuyong Hu, 2025.
"Pt nanocluster-Fe single atom pairs dual-regulate charge extraction and interfacial reaction for enhanced photoelectric response,"
Nature Communications, Nature, vol. 16(1), pages 1-11, December.
Handle:
RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-58174-x
DOI: 10.1038/s41467-025-58174-x
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