Laser induced trace doping of Pd on Ru nanoparticles for an efficient hydrogen evolution electrocatalyst

Improving the activity and stability of electrocatalysts for the hydrogen evolution reaction (HER) plays an essential role in the practical application of electrochemical water splitting under alkaline conditions. Here, trace Pd-doped Ru nanoparticles have been achieved using the pulsed laser ablati...

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Bibliographic Details
Published in:Nanoscale 2023-01, Vol.15 (4), p.1554-156
Main Authors: Guo, Ziang, Zhu, Liye, Liu, Xuan, Zhang, Ran, Zhu, Tiying, Jiang, Nan, Zhao, Yan, Jiang, Yijian
Format: Article
Language:English
Subjects:
Doping
Electrocatalysts
Hydrogen evolution reactions
Laser ablation
Laser applications
Liquid phases
Molecular dynamics
Nanoparticles
Palladium
Precursors
Pulsed lasers
Ruthenium
Thermal decomposition
Water splitting
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Summary:Improving the activity and stability of electrocatalysts for the hydrogen evolution reaction (HER) plays an essential role in the practical application of electrochemical water splitting under alkaline conditions. Here, trace Pd-doped Ru nanoparticles have been achieved using the pulsed laser ablation in liquid technology, which exhibit efficient HER catalytic performance. It is evidenced that the Pd doping amount is maintained at a trace level and increases nonlinearly with the concentration of the Pd precursor. Molecular dynamics simulations demonstrate that the trace doping of Pd is due to the slow thermal decomposition rate of the Pd precursor. This work improves the mechanistic explanation of the metal doping induced by liquid-phase laser ablation, which may promote the fabrication and application of advanced laser-based nanostructures. The trace Pd-doped Ru NPs were made by liquid-phase laser ablation and exhibit efficient HER catalytic performance. This work improves understanding of metal doping by experimental and theoretical analysis, which may promote laser-driven applications.
ISSN:2040-3364
2040-3372
DOI:10.1039/d2nr05457d