Atomic Layered ZnO Between Cu Nanoparticles and a PVP Polymer Layer Enable Exceptional Selectivity and Stability in Electrocatalytic CO2 Reduction to C2H4
Abstract This study employs a chemically controlled strategy to construct a few‐atomic‐layer ZnO structure integrated with polyvinylpyrrolidone (PVP) and nanoscale metallic copper on active carbon. Hydrogen‐bond interactions from PVP's N‐vinylpyrrolidone allow ZnO to retain a specific proportio...
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| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2025-07-01
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| Series: | Advanced Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/advs.202501642 |
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| Summary: | Abstract This study employs a chemically controlled strategy to construct a few‐atomic‐layer ZnO structure integrated with polyvinylpyrrolidone (PVP) and nanoscale metallic copper on active carbon. Hydrogen‐bond interactions from PVP's N‐vinylpyrrolidone allow ZnO to retain a specific proportion of metal atoms, confining electrons at the Cu/ZnO interface to form CuZn nanoalloy clusters. The nanoalloy's dual role in promoting CO adsorption and C─C coupling synergistically boosts C2H4 production during electrochemical CO2 reduction (ECR). Rapid Cu regeneration further increases adsorbed hydrogen (Hads) from water splitting, achieving a remarkable C2H4 selectivity of ≈50.2% with stable performance over 10 h. The Zn→Cu electron confinement and interfacial synergy at the organic‐oxide‐metal heterojunction underscore the catalyst's superior efficiency, offering a promising pathway for sustainable CO2‐to‐C2H4 conversion. |
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| ISSN: | 2198-3844 |