Activation of photocatalytic CO₂ reduction by loading hydrophobic thiolate-protected Au₂₅ nanocluster cocatalyst

Nanoscale Advances, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

A Au 25 nanocluster cocatalyst with hydrophobic ligands significantly improves the photocatalytic CO 2 reduction reaction activity suppression of competing H evolution reaction.

Language: Английский

Ligand-to-Metal Charge Transfer Controls the Photophysical Properties and HER Activity of Ag₁₃ Nanoclusters Depends on the Hydrogen Adsorption Energy

The Journal of Physical Chemistry Letters, Journal Year: 2025, Volume and Issue: unknown, P. 2561 - 2569

Published: March 3, 2025

The hydrogen evolution reaction (HER) activity of ligand-protected metal nanoclusters (NCs) has been emphasized, where the ligands influence electronic properties and adsorption energy during catalytic process. Here, we highlight ligand-to-metal charge transfer (LMCT) on photoluminescence (PL) free HER Ag13 NCs. MALDI-MS analysis confirms composition NCs as [Ag13(L)9] [L = D-penicillamine (DPA), cysteine (CYS), mercaptopropionyl glycine (MPG)]. XPS study DFT calculations reveal that electron-donating modulate electron density Ag(I) core cause a change in HOMO-LUMO gap PL due to LMCT. Partial states (PDOS) calculation shows H 1s-Ag bonding occurs below Fermi level, causing substantial contribution valence band region [Ag13(CYS)9] optimal efficient kinetics are reasons for superior

Language: Английский

Probing Temperature Effect on Enhanced Electrochemical CO₂ Reduction of Hydrophobic Au₂₅(SR)₁₈ Nanoclusters

ACS Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 4605 - 4617

Published: March 4, 2025

Language: Английский