2019
DOI: 10.1039/c9ta05492h
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Tailoring the ORR and HER electrocatalytic performances of gold nanoparticles through metal–ligand interfaces

Abstract: The oxygen reduction (ORR) and hydrogen evolution (HER) reactions are the most important cathodic processes involved in fuel cell and water splitting, respectively.

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Cited by 52 publications
(52 citation statements)
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References 53 publications
(65 reference statements)
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“…The presence of the ligands is found to negatively shift the Au 4 f binding energies compared to bulk gold, including gold nanoparticles capped with citrate. The largest shifts are observed for CTAB and MUA . Such an observation suggests a local modification of the electronic properties of the gold surface due to chemical functionalization.…”
Section: Surface Functionalization Of Single‐metal Catalystsmentioning
confidence: 81%
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“…The presence of the ligands is found to negatively shift the Au 4 f binding energies compared to bulk gold, including gold nanoparticles capped with citrate. The largest shifts are observed for CTAB and MUA . Such an observation suggests a local modification of the electronic properties of the gold surface due to chemical functionalization.…”
Section: Surface Functionalization Of Single‐metal Catalystsmentioning
confidence: 81%
“…Lead underpotential deposition shows that citrate capped nanoparticles present (100) symmetry while the three other systems display mainly (111) domains. After ORR measurements, significant faceting transformation is observed with the citrate capped nanoparticles that acquire (111) symmetry while the other ligand‐stabilized nanoparticles show almost no difference . It is now established that the most active facets for 4‐electron ORR pathway is the (100) domains .…”
Section: Surface Functionalization Of Single‐metal Catalystsmentioning
confidence: 96%
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“…Recent works have indeed reported the good activity of citratescapped AuNPs of 15 nm size as electrocatalysts for ORR. [13,43] Citrates are the most classical ligands used for commercially available AuNPs. They stabilize AuNPs through electrostatic adsorption by forming multilayers in a disordered arrangement.…”
Section: Introductionmentioning
confidence: 99%