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

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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Veröffentlicht in:Angewandte Chemie 2018-09, Vol.130 (39), p.12857-12861
Hauptverfasser: 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: Artikel
Sprache:eng
Schlagworte:
Carbon dioxide
Catalysis
Catalysts
Catalytic activity
Chelateffekt
Chelation
Chemical reduction
Chemistry
CO2-Reduktion
Deactivation
Electrochemistry
Electrolysis
Elektrokatalyse
Gold
Gold-Nanopartikel
Ligands
Nanoparticles
Organic chemistry
Porphyrine
Tuning
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Beschreibung
Zusammenfassung: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:0044-8249
1521-3757
DOI:10.1002/ange.201805696