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

Research output: Contribution to journalArticlepeer-review

66 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)12675-12679
Number of pages5
JournalAngewandte Chemie - International Edition
Issue number39
Publication statusPublished - 2018 Sep 24

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)


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