Phase-Controlled Synthesis of Ru Supported on Carbon Nitride and the Application in Photocatalytic H2 Evolution DOI Open Access

Xiaohu Sun,

Xiangyang Cao,

Ganghua Zhou

et al.

Materials, Journal Year: 2025, Volume and Issue: 18(6), P. 1259 - 1259

Published: March 13, 2025

This work aims to explore the influence of crystal phase engineering on photocatalytic hydrogen evolution activity Ru/C3N4 systems. By precisely tuning combination Ru precursors and reducing solvents, we successfully synthesized co-catalysts with distinct phases (hcp fcc) integrated them C3N4. The experiments demonstrated that hcp-Ru/C3N4 achieved a significantly higher rate (24.23 μmol h−1) compared fcc-Ru/C3N4 (7.44 h−1), reaching approximately 42% Pt/C3N4 under same conditions. Photocurrent electrochemical impedance spectroscopy analyses revealed exhibited superior charge separation transfer efficiency. Moreover, Gibbs free energy calculations indicated adsorption hcp-Ru (ΔGH* = −0.14 eV) was closer optimal fcc-Ru (−0.32 eV), enhancing generation process. These findings highlight crystal-phase plays critical role in electronic structure catalytic properties Ru-based systems, offering insights for design highly efficient noble metal catalysts photocatalysis.

Language: Английский

Phosphorus–nitrogen Co-doped 3D RuCo spheres on activated carbon cloth with enhanced electrocatalytic activity for hydrogen and oxygen evolution reactions DOI
Abdulwahab Salah,

Hong‐Da Ren,

Nabilah Al‐Ansi

et al.

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 122, P. 270 - 278

Published: April 1, 2025

Language: Английский

Citations

1
Phase-Controlled Synthesis of Ru Supported on Carbon Nitride and the Application in Photocatalytic H2 Evolution DOI Open Access

Xiaohu Sun,

Xiangyang Cao,

Ganghua Zhou

et al.

Materials, Journal Year: 2025, Volume and Issue: 18(6), P. 1259 - 1259

Published: March 13, 2025

This work aims to explore the influence of crystal phase engineering on photocatalytic hydrogen evolution activity Ru/C3N4 systems. By precisely tuning combination Ru precursors and reducing solvents, we successfully synthesized co-catalysts with distinct phases (hcp fcc) integrated them C3N4. The experiments demonstrated that hcp-Ru/C3N4 achieved a significantly higher rate (24.23 μmol h−1) compared fcc-Ru/C3N4 (7.44 h−1), reaching approximately 42% Pt/C3N4 under same conditions. Photocurrent electrochemical impedance spectroscopy analyses revealed exhibited superior charge separation transfer efficiency. Moreover, Gibbs free energy calculations indicated adsorption hcp-Ru (ΔGH* = −0.14 eV) was closer optimal fcc-Ru (−0.32 eV), enhancing generation process. These findings highlight crystal-phase plays critical role in electronic structure catalytic properties Ru-based systems, offering insights for design highly efficient noble metal catalysts photocatalysis.

Language: Английский

Citations

0