Modulating Electronic Structure and Mass Transfer Kinetics via Mo‐Mo2C Heterostructure for Ampere‐Level Hydrogen Evolution DOI Open Access

Shisheng Yuan,

Lijuan Xiang, Nan Li

et al.

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

Published: Feb. 25, 2025

Abstract Molybdenum carbide (Mo 2 C), known for its platinum‐like electronic structure and excellent corrosion resistance, has demonstrated promising catalytic performance in laboratory tests. However, under industrial harsh conditions, the of Mo C faces constraints due to inherently strong hydrogen adsorption. Additionally, at elevated current densities, rapid depletion active species electrolyte, coupled with gas bubble accumulation, introduce significant mass transport challenges. This work introduces an electrode Mo‐Mo heterostructures supported on a plate (Mo‐Mo C/Mo). Further analyses reveal that incorporating metallic into optimizes C. optimization achieves more balanced adsorption, while also enhancing capacity water adsorption dissociation C, collectively improving activity. Furthermore, this features unique “bush‐like” surface morphology can induce “turbulence” effect electrolyte near surface, facilitating flow transport. As result, C/Mo exhibits high densities (η 1000 = 452 mV). Moreover, resistance robust integration ensure long‐term stability, remaining stable 1.5 A 6 M KOH over extended periods.

Language: Английский

Recycling Spent Lithium-Ion Battery Cathodes to Multimetallic Phosphides for High-Efficiency Oxygen Evolution Reaction DOI
Yaping Wang, Yixin Zhou, Mingfei Chen

et al.

ACS Sustainable Chemistry & Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 6, 2025

Language: Английский

Citations

1
Synergism of Hydrogen-Induced Interstitial Effect and Gold-Induced Alloying Effect in PdAuH Metallene for Urea Electrosynthesis from Nitrate and Carbon Dioxide DOI
You Xu, Junjie Wang,

Youwei Sheng

et al.

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 8, 2025

Urea is a common agricultural fertilizer and industrial raw material, but at present, the traditional production of urea energy-and pollution-intensive. Electrocatalytic coupling CO2 ubiquitous nitrogen sources to synthesize considered as promising alternative method requiring high-performance catalysts boost C–N electrocatalysis process. Herein, hydrogen-intercalated Pd–Au bimetallene (PdAuHene) was prepared by three-step used for electrosynthesis from NO3– CO2, deriving an optimum Faradaic efficiency 33.88% yield rate 6.68 mmol g–1 h–1 applied potential −0.6 V vs RHE. Detailed material characterizations electrochemical studies reveal that metallene structure with ultrathin thickness could improve atomic utilization precious metal atoms, introduction Au H atoms adjust electronic Pd regulate evolution pathway key N-/C-intermediates, promote form urea.

Language: Английский

Citations

1
Modulating Electronic Structure and Mass Transfer Kinetics via Mo‐Mo2C Heterostructure for Ampere‐Level Hydrogen Evolution DOI Open Access

Shisheng Yuan,

Lijuan Xiang, Nan Li

et al.

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

Published: Feb. 25, 2025

Abstract Molybdenum carbide (Mo 2 C), known for its platinum‐like electronic structure and excellent corrosion resistance, has demonstrated promising catalytic performance in laboratory tests. However, under industrial harsh conditions, the of Mo C faces constraints due to inherently strong hydrogen adsorption. Additionally, at elevated current densities, rapid depletion active species electrolyte, coupled with gas bubble accumulation, introduce significant mass transport challenges. This work introduces an electrode Mo‐Mo heterostructures supported on a plate (Mo‐Mo C/Mo). Further analyses reveal that incorporating metallic into optimizes C. optimization achieves more balanced adsorption, while also enhancing capacity water adsorption dissociation C, collectively improving activity. Furthermore, this features unique “bush‐like” surface morphology can induce “turbulence” effect electrolyte near surface, facilitating flow transport. As result, C/Mo exhibits high densities (η 1000 = 452 mV). Moreover, resistance robust integration ensure long‐term stability, remaining stable 1.5 A 6 M KOH over extended periods.

Language: Английский

Citations

0