▌Generating Multi-Carbon Products by Electrochemical CO2 Reduction via Catalytically Harmonious Ni/Cu Dual Active Sites
透過催化協調性鎳銅雙活性位點進行電化學二氧化碳還原產生多碳產物
K. Lakshmanan, W.H. Huang, S.A. Chala, C.Y. Chang, S.T. Saravanan, B.W. Taklu, E.A. Moges, Y. Nikodimos, B.D. Dandena, S.C. Yang, J.F. Lee, P.Y. Huang, Y.C. Lee, M.C. Tsai*, W.N. Su*, B.J. Hwang*
https://doi.org/10.1002/smll.202307180
SEED Member: M.C. Tsai, S.C. Yang, W.N. Su, B.J. Hwang
Major Contributions
1. Developed a novel and simple approach to create a Ni/Cu proximal dual-active site catalyst (Ni/Cu-PASC) by physically mixing commercial Ni-phthalocyanine and Cu-phthalocyanine molecules, achieving 55% Faradaic efficiency for ethanol production.
2. Demonstrated that the harmonious Ni/Cu molecular dual-active sites facilitate CO generation at Ni sites and subsequent C-C coupling at Cu sites, enabling efficient conversion of CO₂ to multi-carbon products.
3. Revealed the reaction mechanism where CO generated from Ni sites migrates to Cu sites, changing the intermediate binding from *OCHOH to *CHO, which promotes C-C coupling for ethanol formation.
主要貢獻
1. 開發了一種新穎且簡單的方法，通過物理混合商業化的鎳酞菁和銅酞菁分子來創建鎳銅近距離雙活性位點催化劑(Ni/Cu-PASC)，實現了55%的乙醇法拉第效率。
2. 證實了協調性鎳銅分子雙活性位點能促進鎳位點產生一氧化碳，並在銅位點進行後續碳-碳偶合，實現二氧化碳高效轉化為多碳產物。
3. 揭示了反應機制：從鎳位點產生的一氧化碳遷移到銅位點，改變了中間體結合從OCHOH到CHO的方式，促進了乙醇形成的碳-碳偶合。
