Impact of Confined and Exposed Nickel Nanoparticles on Electronic Modulation of Atomically Dispersed Nickel for Electrocatalytic Reduction CO₂ to CO with an Ultra‐Wide Voltage Range

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

Published: April 27, 2025

Abstract The practical development of electrocatalytic CO 2 reduction requires high‐performance electrocatalysts that can operate over a wide voltage range to accommodate the volatility renewable electricity. Herein, impact confined and exposed nanoparticles on ‐to‐CO are explored. A hybrid electrocatalyst consisting Ni single‐atoms (SAs) supported carbon, modified with two types (NPs): (CP) (EP) is designed. Systematic investigations reveal CP significantly enhances activity selectivity SAs catalysts, while EP exacerbates competitive hydrogen evolution, especially at more negative potential. Density functional theory calculations indicate introducing effectively modulates electronic structure active sites, diminishing lowering free energy *COOH formation, stabilizing intermediate, enhancing reaction kinetics formation. In an alkaline flow cell, Faradaic efficiency for (FE ) exceeds 93% across ultra‐wide 1200 mV (from −0.37 −1.57 V vs RHE), achieving maximum FE ≈100% from −0.57 −0.97 V. mixed electrolyte (0.1 m KOH + 0.9 KCl) prolongs stability catalyst.

Language: Английский

Highly selective catalytic hydrogenation conversion of CO2 to CO over lanthanum-doped supported ruthenium catalysts

Journal of Environmental Sciences, Journal Year: 2025, Volume and Issue: unknown

Published: May 1, 2025

Language: Английский

Electrospun nanofibers for electrochemical reduction of CO ₂: From spinning fabrication techniques to electrocatalyst design

Nano Research, Journal Year: 2024, Volume and Issue: 18(2), P. 94907154 - 94907154

Published: Dec. 16, 2024

Language: Английский