Hybrid Nanoparticles: Ni and Au Decorated with [FeFe]-Hydrogenase Mimics

Sergio Aguado; Albert Gallego-Gamo; Diego J. Vicent; Albert Granados; Laura Mallón; Carolina Gimbert-Suriñach; Jordi García-Antón; Luis Casarrubios; Adelina Vallribera; Miguel A. Sierra

doi:10.1002/cctc.202401293

Hybrid Nanoparticles: Ni and Au Decorated with [FeFe]-Hydrogenase Mimics

Sergio Aguado, Albert Gallego-Gamo, Diego J. Vicent, Albert Granados, Laura Mallón, Carolina Gimbert-Suriñach, Jordi García-Antón, Luis Casarrubios, Adelina Vallribera^*, Miguel A. Sierra^*

^*Corresponding author for this work

Department of Chemistry

Research output: Contribution to journal › Article › Research › peer-review

Abstract

Complexes [(μ-S₂C₂H₄NHR)Fe₂(CO)₆] (R = p-C₆H₄-OCO(CH₂)₉Br (3a); R = p-C₆H₄-OCO(CH₂)₈CH₃ (3b)) were used as stabilizing agents in the synthesis of Ni@3 and Au@3 nanoparticles (NPs), which are the first reported stable metallic NPs decorated with [(μ-S₂C₂H₄NHR)Fe₂(CO)₆] moieties. Electrochemical analysis reveals that incorporating the hydrogenase mimic into the NPs lowers the overpotential and enhances proton reduction electrocatalytic activity in organic media. The NPs act similarly to the [Fe₄S₄] cluster in natural enzymes, functioning as an electron reservoir/relay.

Original language	English
Article number	e202401293
Number of pages	10
Journal	ChemCatChem
DOIs	https://doi.org/10.1002/cctc.202401293
Publication status	Published - 30 Sept 2024

Keywords

Electrocatalysis
Electroreduction
Gold
Hydrogenase mimics
Nanoparticles

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title = "Hybrid Nanoparticles: Ni and Au Decorated with [FeFe]-Hydrogenase Mimics",

abstract = "Complexes [(μ-S₂C₂H₄NHR)Fe₂(CO)₆] (R = p-C₆H₄-OCO(CH₂)₉Br (3a); R = p-C₆H₄-OCO(CH₂)₈CH₃ (3b)) were used as stabilizing agents in the synthesis of Ni@3 and Au@3 nanoparticles (NPs), which are the first reported stable metallic NPs decorated with [(μ-S₂C₂H₄NHR)Fe₂(CO)₆] moieties. Electrochemical analysis reveals that incorporating the hydrogenase mimic into the NPs lowers the overpotential and enhances proton reduction electrocatalytic activity in organic media. The NPs act similarly to the [Fe₄S₄] cluster in natural enzymes, functioning as an electron reservoir/relay.",

keywords = "Electrocatalysis, Electroreduction, Gold, Hydrogenase mimics, Nanoparticles",

author = "Sergio Aguado and Albert Gallego-Gamo and Vicent, {Diego J.} and Albert Granados and Laura Mall{\'o}n and Carolina Gimbert-Suri{\~n}ach and Jordi Garc{\'i}a-Ant{\'o}n and Luis Casarrubios and Adelina Vallribera and Sierra, {Miguel A.}",

note = "Publisher Copyright: {\textcopyright} 2024 The Author(s). ChemCatChem published by Wiley-VCH GmbH.",

year = "2024",

month = sep,

day = "30",

doi = "10.1002/cctc.202401293",

language = "English",

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TY - JOUR

T1 - Hybrid Nanoparticles

T2 - Ni and Au Decorated with [FeFe]-Hydrogenase Mimics

AU - Aguado, Sergio

AU - Gallego-Gamo, Albert

AU - Vicent, Diego J.

AU - Granados, Albert

AU - Mallón, Laura

AU - Gimbert-Suriñach, Carolina

AU - García-Antón, Jordi

AU - Casarrubios, Luis

AU - Vallribera, Adelina

AU - Sierra, Miguel A.

PY - 2024/9/30

Y1 - 2024/9/30

N2 - Complexes [(μ-S₂C₂H₄NHR)Fe₂(CO)₆] (R = p-C₆H₄-OCO(CH₂)₉Br (3a); R = p-C₆H₄-OCO(CH₂)₈CH₃ (3b)) were used as stabilizing agents in the synthesis of Ni@3 and Au@3 nanoparticles (NPs), which are the first reported stable metallic NPs decorated with [(μ-S₂C₂H₄NHR)Fe₂(CO)₆] moieties. Electrochemical analysis reveals that incorporating the hydrogenase mimic into the NPs lowers the overpotential and enhances proton reduction electrocatalytic activity in organic media. The NPs act similarly to the [Fe₄S₄] cluster in natural enzymes, functioning as an electron reservoir/relay.

AB - Complexes [(μ-S₂C₂H₄NHR)Fe₂(CO)₆] (R = p-C₆H₄-OCO(CH₂)₉Br (3a); R = p-C₆H₄-OCO(CH₂)₈CH₃ (3b)) were used as stabilizing agents in the synthesis of Ni@3 and Au@3 nanoparticles (NPs), which are the first reported stable metallic NPs decorated with [(μ-S₂C₂H₄NHR)Fe₂(CO)₆] moieties. Electrochemical analysis reveals that incorporating the hydrogenase mimic into the NPs lowers the overpotential and enhances proton reduction electrocatalytic activity in organic media. The NPs act similarly to the [Fe₄S₄] cluster in natural enzymes, functioning as an electron reservoir/relay.

KW - Electrocatalysis

KW - Electroreduction

KW - Gold

KW - Hydrogenase mimics

KW - Nanoparticles

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JO - ChemCatChem

JF - ChemCatChem

M1 - e202401293

ER -

Hybrid Nanoparticles: Ni and Au Decorated with [FeFe]-Hydrogenase Mimics

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Keywords

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