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

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...

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2018-09, Vol.57 (39), p.12675-12679
Main Authors: Cao, Zhi, Zacate, Samson B., Sun, Xiaodong, Liu, Jinjia, Hale, Elizabeth M., Carson, William P., Tyndall, Sam B., Xu, Jun, Liu, Xingwu, Liu, Xingchen, Song, Chang, Luo, Jheng‐hua, Cheng, Mu‐Jeng, Wen, Xiaodong, Liu, Wei
Format: Article
Language:English
Subjects:
Carbon dioxide
Catalysis
Catalysts
Catalytic activity
chelate effect
Chelation
Chemical reduction
CO2 reduction
Deactivation
electrocatalysis
Electrochemistry
Electrolysis
Gold
gold nanoparticles
Ligands
Nanoparticles
Organic chemistry
porphyrins
Tuning
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Summary: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 (
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201805696