Deciphering the Electronic Coupling Dynamics of Laser‐induced Ru/Cu Electrocatalyst for Dual‐Side Hydrogen Production and Formic Acid Co‐synthesis via DFT Analysis DOI
Sagyntay Sarsenov, Raja Arumugam Senthil, Ahreum Min

et al.

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 18, 2024

Abstract Herein, a straightforward approach using pulsed laser technology to synthesize selective hexagonal‐close‐packed ( hcp ) Ru nanoparticles attached Cu nanospheres (Ru/Cu) as bifunctional electrocatalyst for catalyzing the hydrogen evolution reaction (HER) and formaldehyde oxidation (FOR) are reported. Initially, Ru‐doped CuO flakes synthesized coprecipitation method followed by transformation into Ru/Cu composites through strategy involving irradiation in liquid. Specifically, optimized Ru/Cu‐4 composite not only demonstrates low overpotential of 182 mV at 10 mA·cm −2 HER but also an ultralow working potential 0.078 V (versus reversible electrode) FOR same current density. Remarkably, FOR∥HER‐coupled electrolyzer employing Ru/Cu‐4∥Ru/Cu‐4 system achieves H 2 production both electrodes with cell voltage 0.42 while co‐synthesizing formic acid. Furthermore, density functional theory analyses elucidate that superior activity originates from adsorption energies reactive species on catalyst surfaces during FOR, facilitated synergistic coupling between Cu. This study presents alternative synthesizing highly effective electrocatalytic materials use energy‐efficient cosynthesis value‐added chemicals suitable practical applications.

Language: Английский

Nickel-iron layered double hydroxide and CoMoO4 composites supported on nickel foam as efficient bifunctional catalyst for water electrolysis DOI
Xin Xiao,

Rao Ma,

Ke Jiang

et al.

Fuel, Journal Year: 2024, Volume and Issue: 379, P. 132978 - 132978

Published: Sept. 13, 2024

Language: Английский

Citations

2
Insights into dual-functional catalytic activity of laser-driven CoGaIr-LDH nanosheets in water electrolysis for green hydrogen production via in-situ Raman and theoretical analyses DOI

Akash Prabhu Sundar Rajan,

Raja Arumugam Senthil, Cheol Joo Moon

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 502, P. 157848 - 157848

Published: Nov. 24, 2024

Language: Английский

Citations

2
Unraveling the Synergistic Role of Sm3+ Doped NiFe‐LDH as High‐Performance Electrocatalysts for Improved Anion Exchange Membrane and Water Splitting Applications DOI Open Access
Sreenivasan Nagappan,

Hemalatha Gurusamy,

Harpriya Minhas

et al.

Small Methods, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 17, 2024

Effective first-row transition metal-based electrocatalysts are crucial for large-scale hydrogen energy generation and anion exchange membrane (AEM) devices in water splitting. The present work describes that SmNi

Language: Английский

Citations

2
Laser‐Regulated Iridium‐Diffused Nitrogen–Carbon Sites for Enhanced Hydrazine‐Assisted Alkaline Seawater Splitting and Zinc–Hydrazine Batteries DOI Open Access
Cheol Joo Moon,

V. Maheskumar,

Ahreum Min

et al.

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 31, 2024

The current study presents a quick and simple method for synthesizing Ir nanoclusters decorated on an N-doped carbon (NC) matrix via pulsed laser ablation in liquid, followed by pyrolysis. resulting Ir-NC material acts as dual-functional electrocatalyst, efficiently facilitating hydrogen generation through the hydrazine oxidation reaction (HzOR) evolution (HER) alkaline seawater. optimized Ir-NC-2 catalyst exhibits low operating potential of 23 mV versus reversible electrode HzOR remarkably overpotential 24 HER, achieving density 10 mA cm

Language: Английский

Citations

1
Deciphering the Electronic Coupling Dynamics of Laser‐induced Ru/Cu Electrocatalyst for Dual‐Side Hydrogen Production and Formic Acid Co‐synthesis via DFT Analysis DOI
Sagyntay Sarsenov, Raja Arumugam Senthil, Ahreum Min

et al.

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 18, 2024

Abstract Herein, a straightforward approach using pulsed laser technology to synthesize selective hexagonal‐close‐packed ( hcp ) Ru nanoparticles attached Cu nanospheres (Ru/Cu) as bifunctional electrocatalyst for catalyzing the hydrogen evolution reaction (HER) and formaldehyde oxidation (FOR) are reported. Initially, Ru‐doped CuO flakes synthesized coprecipitation method followed by transformation into Ru/Cu composites through strategy involving irradiation in liquid. Specifically, optimized Ru/Cu‐4 composite not only demonstrates low overpotential of 182 mV at 10 mA·cm −2 HER but also an ultralow working potential 0.078 V (versus reversible electrode) FOR same current density. Remarkably, FOR∥HER‐coupled electrolyzer employing Ru/Cu‐4∥Ru/Cu‐4 system achieves H 2 production both electrodes with cell voltage 0.42 while co‐synthesizing formic acid. Furthermore, density functional theory analyses elucidate that superior activity originates from adsorption energies reactive species on catalyst surfaces during FOR, facilitated synergistic coupling between Cu. This study presents alternative synthesizing highly effective electrocatalytic materials use energy‐efficient cosynthesis value‐added chemicals suitable practical applications.

Language: Английский

Citations

1