ACS Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 3378 - 3390
Published: Feb. 10, 2025
Language: Английский
ACS Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 3378 - 3390
Published: Feb. 10, 2025
Language: Английский
Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 493, P. 152461 - 152461
Published: May 21, 2024
Language: Английский
Citations
9Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 495, P. 153405 - 153405
Published: June 22, 2024
Language: Английский
Citations
9Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 9, 2025
Abstract Understanding the phase structure‐dependent catalytic performance is of great significance for investigation advanced electrocatalysts. At present, research in engineering metal materials electrocatalysis predominantly concentrates on iron group, platinum and coinage group metals with A1‐, A2‐, A3‐ type structures. However, beyond above other types structures still poorly explored. Herein, using tungsten as a substrate to support iridium, it shown that iridium‐embedded diverse crystal structure (referred Ir/α‐W A2‐type Ir/β‐W A‐15 structure) exhibits distinct activity hydrogen oxidation reactions (HOR) alkaline medium. Notably, mass‐normalized exchange current density (j 0, m ) noble iridium (518.3 A g −1 Ir ≈1.8 times 16.4 higher than Ir/C, respectively. In‐depth mechanistic studies suggest enhanced HOR attributed connectivity H‐bond network well synergistic optimization adsorption binding energies H OH intermediate species. This study can inspire more scientific interest exploration electrocatalysis.
Language: Английский
Citations
1Angewandte Chemie International Edition, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 31, 2025
Abstract Carbon black has been extensively employed as the support for noble metal catalysts electrocatalysis applications. However, nearly catalytic inertness and weak interaction with species of carbon are two major obstacles that hinder further improvement performance. Herein, we report a surface functionalization strategy by decorating transition oxide clusters on commercial to offer specific activity enhanced species. In case NiO x cluster‐decorated black, strongly coupled cluster‐cluster heterostructure consisting Pt (Pt−NiO /C) is formed delivers greatly alkaline hydrogen evolution kinetics. The can not only accelerate process co‐catalyst, but also optimize adsorption H intermediates stabilize clusters. Notably, anion exchange membrane water electrolyzer Pt−NiO /C cathode catalyst (with loading 50 μ g cm −2 ) most competitive electrochemical performance reported date, requiring 1.90 V reach current density 2 A . results demonstrate significance carbonaceous supports toward development advanced electrocatalysts.
Language: Английский
Citations
1ACS Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 3378 - 3390
Published: Feb. 10, 2025
Language: Английский
Citations
1