Tuning Gold Nanoparticles with Chelating Ligands for Highly Efficient Electrocatalytic CO2 Reduction

Zhi Cao, Samson B. Zacate, Xiaodong Sun, Jinjia Liu, Elizabeth M. Hale, William P. Carson, Sam B. Tyndall, Jun Xu, Xingwu Liu, Xingchen Liu, Chang Song, Jheng hua Luo, Mu Jeng Cheng, Xiaodong Wen, Wei Liu

研究成果: Article

37 引文 斯高帕斯(Scopus)

摘要

Capped chelating organic molecules are presented as a design principle for tuning heterogeneous nanoparticles for electrochemical catalysis. Gold nanoparticles (AuNPs) functionalized with a chelating tetradentate porphyrin ligand show a 110-fold enhancement compared to the oleylamine-coated AuNP in current density for electrochemical reduction of CO2 to CO in water at an overpotential of 340 mV with Faradaic efficiencies (FEs) of 93 %. These catalysts also show excellent stability without deactivation (<5 % productivity loss) within 72 hours of electrolysis. DFT calculation results further confirm the chelation effect in stabilizing molecule/NP interface and tailoring catalytic activity. This general approach is thus anticipated to be complementary to current NP catalyst design approaches.

原文English
頁(從 - 到)12675-12679
頁數5
期刊Angewandte Chemie - International Edition
57
發行號39
DOIs
出版狀態Published - 2018 九月 24

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)

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  • 引用此

    Cao, Z., Zacate, S. B., Sun, X., Liu, J., Hale, E. M., Carson, W. P., Tyndall, S. B., Xu, J., Liu, X., Liu, X., Song, C., Luo, J. H., Cheng, M. J., Wen, X., & Liu, W. (2018). Tuning Gold Nanoparticles with Chelating Ligands for Highly Efficient Electrocatalytic CO2 Reduction. Angewandte Chemie - International Edition, 57(39), 12675-12679. https://doi.org/10.1002/anie.201805696