Enhanced Hydrogen Evolution Reaction in Alkaline Media via Ruthenium–Chromium Atomic Pairs Modified Ruthenium Nanoparticles DOI Creative Commons
Parisa Eskandari, Yingtang Zhou, Jodie A. Yuwono

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 20, 2025

Abstract Precisely optimizing the electronic metal support interaction (EMSI) of electrocatalysts and tuning structures active sites are crucial for accelerating water adsorption dissociation kinetics in alkaline hydrogen evolution reaction (HER). Herein, an effective strategy is applied to modify structure Ru nanoparticles (Ru NPs ) by incorporating single atoms SAs Cr atomic pairs (RuCr APs onto a nitrogen‐doped carbon (N–C) through optimized EMSI. The resulting catalyst, ‐RuCr ‐N‐C, shows exceptional performance HER, achieving six times higher turnover frequency (TOF) 13.15 s⁻¹ at overpotential 100 mV, compared that commercial Pt/C (2.07 s⁻¹). Additionally, catalyst operates lower current density 10 mA·cm⁻ 2 (η = 31 mV), outperforming 34 mV). Experimental results confirm RuCr modified main facilitating rate‐determining steps dissociation. Moreover, Ru–Cr also plays vital role modulating desorption. This study presents synergistic approach rationally combining atoms, pairs, with EMSI effects advance development efficient HER.

Language: Английский

Enhanced Hydrogen Evolution Reaction in Alkaline Media via Ruthenium–Chromium Atomic Pairs Modified Ruthenium Nanoparticles DOI Creative Commons
Parisa Eskandari, Yingtang Zhou, Jodie A. Yuwono

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 20, 2025

Abstract Precisely optimizing the electronic metal support interaction (EMSI) of electrocatalysts and tuning structures active sites are crucial for accelerating water adsorption dissociation kinetics in alkaline hydrogen evolution reaction (HER). Herein, an effective strategy is applied to modify structure Ru nanoparticles (Ru NPs ) by incorporating single atoms SAs Cr atomic pairs (RuCr APs onto a nitrogen‐doped carbon (N–C) through optimized EMSI. The resulting catalyst, ‐RuCr ‐N‐C, shows exceptional performance HER, achieving six times higher turnover frequency (TOF) 13.15 s⁻¹ at overpotential 100 mV, compared that commercial Pt/C (2.07 s⁻¹). Additionally, catalyst operates lower current density 10 mA·cm⁻ 2 (η = 31 mV), outperforming 34 mV). Experimental results confirm RuCr modified main facilitating rate‐determining steps dissociation. Moreover, Ru–Cr also plays vital role modulating desorption. This study presents synergistic approach rationally combining atoms, pairs, with EMSI effects advance development efficient HER.

Language: Английский

Citations

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