Deciphering Electrocatalytic Activity in Cu Nanoclusters: Interplay Between Structural Confinement and Ligands Environment DOI Creative Commons
Sourav Biswas,

Yamato Shingyouchi,

Maho Kamiyama

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: March 6, 2025

Ligand-protected copper nanoclusters (Cu NCs) with atomic precision have emerged rapidly due to their fascinating structural architectures and versatile catalytic properties, making them ideal for investigating structure-activity relationships. Despite potential, challenges such as stability issues limited diversity restricted deeper exploration. In this study, three distinct Cu NCs are synthesized using a one-pot reduction strategy by carefully modifying reaction conditions. Intriguingly, the same p-toluenethiol ligand produces two different geometries, while varying ligands m-aminobenzethiol-yielded clusters similar geometric architectures. These evaluated electrocatalytic CO2 reduction, uncovering diverse activities product selectivity. Experimental theoretical analyses reveal that interplay between core structure confinement surface environment governs behavior. Specifically, Cu11 NC exhibits selectivity toward HCOOH production (FEHCOOH∼45% at -1.2 V vs RHE), whereas substituting m-aminobenzethiol shifted competitive side (FEH2∼82% RHE). Conversely, altering geometry of Cu18 retaining decreases (FEHCOOH∼35% findings highlight tunability tailored applications through precise control chemistry.

Language: Английский

Deciphering Electrocatalytic Activity in Cu Nanoclusters: Interplay Between Structural Confinement and Ligands Environment DOI Creative Commons
Sourav Biswas,

Yamato Shingyouchi,

Maho Kamiyama

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: March 6, 2025

Ligand-protected copper nanoclusters (Cu NCs) with atomic precision have emerged rapidly due to their fascinating structural architectures and versatile catalytic properties, making them ideal for investigating structure-activity relationships. Despite potential, challenges such as stability issues limited diversity restricted deeper exploration. In this study, three distinct Cu NCs are synthesized using a one-pot reduction strategy by carefully modifying reaction conditions. Intriguingly, the same p-toluenethiol ligand produces two different geometries, while varying ligands m-aminobenzethiol-yielded clusters similar geometric architectures. These evaluated electrocatalytic CO2 reduction, uncovering diverse activities product selectivity. Experimental theoretical analyses reveal that interplay between core structure confinement surface environment governs behavior. Specifically, Cu11 NC exhibits selectivity toward HCOOH production (FEHCOOH∼45% at -1.2 V vs RHE), whereas substituting m-aminobenzethiol shifted competitive side (FEH2∼82% RHE). Conversely, altering geometry of Cu18 retaining decreases (FEHCOOH∼35% findings highlight tunability tailored applications through precise control chemistry.

Language: Английский

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