Zhou Lihui, Tsai Hung-Wei, Kuo Ting-Wei, Kao Jui-Cheng, Lo Yu-Chieh, Chang Ji-Min, Chiang Tzu-Hsuan, Dai Sheng, Wang Kuan-Wen, Chen Tsan-Yao
Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Centre, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai, 200237, China.
Institute of Materials Science and Engineering, National Central University, Taoyuan, 32001, Taiwan.
Adv Sci (Weinh). 2025 Jul;12(26):e2501642. doi: 10.1002/advs.202501642. Epub 2025 Apr 26.
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 CH production during electrochemical CO reduction (ECR). Rapid Cu regeneration further increases adsorbed hydrogen (H) from water splitting, achieving a remarkable CH 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 CO-to-CH conversion.
本研究采用化学控制策略，在活性炭上构建了与聚乙烯吡咯烷酮（PVP）和纳米级金属铜集成的几原子层ZnO结构。PVP的N-乙烯基吡咯烷酮形成的氢键相互作用使ZnO保留特定比例的金属原子，将电子限制在Cu/ZnO界面处，形成CuZn纳米合金簇。这种纳米合金在促进CO吸附和C─C偶联方面的双重作用，协同提高了电化学CO还原（ECR）过程中CH的生成。快速的Cu再生进一步增加了水分解产生的吸附氢（H），在10小时内实现了约50.2%的显著CH选择性和稳定性能。有机-氧化物-金属异质结处的Zn→Cu电子限制和界面协同作用突出了催化剂的卓越效率，为可持续的CO到CH转化提供了一条有前景的途径。
