混合纳米粒子：镍和金装饰[FeFe]-氢化酶模拟物

IF 3.8 3区化学 Q2 CHEMISTRY, PHYSICAL

ChemCatChem Pub Date : 2024-09-17 DOI:10.1002/cctc.202401293

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

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引用次数: 0

摘要

络合物[(μ-S₂C₂H₄NHR)Fe₂(CO)₆]（R = p-C₆H₄-OCO(CH₂)𠢙Br (3a)；R=p-C₆H₄-OCO(CH₂)₈CH₃ (3b)) 作为稳定剂用于合成 Ni@3 和 Au@3 纳米粒子 (NPs)、这是首次报道的以[(μ-S₂C₂H₄NHR)Fe₂(CO)₆]分子装饰的稳定金属 NPs。电化学分析表明，在 NPs 中加入氢酶模拟物可降低过电位，增强有机介质中质子还原的电催化活性。NPs 的作用类似于天然酶中的[Fe₄S₄]簇，起着电子贮存器/中继器的作用。

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

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.

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来源期刊

ChemCatChem 化学-物理化学

CiteScore

8.10

自引率

4.40%

发文量

511

审稿时长

1.3 months

期刊介绍： With an impact factor of 4.495 (2018), ChemCatChem is one of the premier journals in the field of catalysis. The journal provides primary research papers and critical secondary information on heterogeneous, homogeneous and bio- and nanocatalysis. The journal is well placed to strengthen cross-communication within between these communities. Its authors and readers come from academia, the chemical industry, and government laboratories across the world. It is published on behalf of Chemistry Europe, an association of 16 European chemical societies, and is supported by the German Catalysis Society.