Synergistic Interactions Among Iron and Cobalt Atoms Within Bimetallic Molybdate@Carbon Paper Composite Create Bifunctional Nanoflower Electrocatalyst, Enhancing Efficiency for Overall Water Splitting in Alkaline Environment DOI Creative Commons
Ting Cheng, Fei Wu, Chen Chen

et al.

Molecules, Journal Year: 2025, Volume and Issue: 30(4), P. 844 - 844

Published: Feb. 12, 2025

Electrocatalytic water splitting is a promising approach for obtaining clean hydrogen energy. In this work, novel molybdate@carbon paper composite electrocatalysts (CoxFe10-xMoO@CP), displaying outstanding electrocatalytic capabilities, were deriving from anchoring cobalt/iron molybdate materials onto the surface of carbon fibers. By adjusting cobalt-to-iron ratio, (Co5Fe5MoO@CP), with optimal molar proportion (Co/Fe = 5/5), exhibited distinctive nanoflower morphology (50-100 nm), which provided significant number active sites reactions, and showed strongest potency both evolution reaction (HER) oxygen (OER). Specifically, overpotentials HER OER 123.6 245 mV at 10 mA·cm-2, Tafel slope 78.3 92.2 mV·dec-1, respectively. The reactions remained favorable stable over 35 days 2 weeks cyclic voltammetry cycles. two-electrode system, efficient overall was achieved cell voltage 1.60 V. Under high alkaline concentration temperature conditions, Co5Fe5MoO@CP still maintained excellent catalytic activity stability, indicating its satisfactory potential industrial applications. Density functional theory (DFT) analysis revealed that promoted capability derived synergistic effect iron cobalt atoms within molecule, while functioned as core process. This work provides strategy towards high-efficiency to significantly accelerate splitting.

Language: Английский

Synergistic Interactions Among Iron and Cobalt Atoms Within Bimetallic Molybdate@Carbon Paper Composite Create Bifunctional Nanoflower Electrocatalyst, Enhancing Efficiency for Overall Water Splitting in Alkaline Environment DOI Creative Commons
Ting Cheng, Fei Wu, Chen Chen

et al.

Molecules, Journal Year: 2025, Volume and Issue: 30(4), P. 844 - 844

Published: Feb. 12, 2025

Electrocatalytic water splitting is a promising approach for obtaining clean hydrogen energy. In this work, novel molybdate@carbon paper composite electrocatalysts (CoxFe10-xMoO@CP), displaying outstanding electrocatalytic capabilities, were deriving from anchoring cobalt/iron molybdate materials onto the surface of carbon fibers. By adjusting cobalt-to-iron ratio, (Co5Fe5MoO@CP), with optimal molar proportion (Co/Fe = 5/5), exhibited distinctive nanoflower morphology (50-100 nm), which provided significant number active sites reactions, and showed strongest potency both evolution reaction (HER) oxygen (OER). Specifically, overpotentials HER OER 123.6 245 mV at 10 mA·cm-2, Tafel slope 78.3 92.2 mV·dec-1, respectively. The reactions remained favorable stable over 35 days 2 weeks cyclic voltammetry cycles. two-electrode system, efficient overall was achieved cell voltage 1.60 V. Under high alkaline concentration temperature conditions, Co5Fe5MoO@CP still maintained excellent catalytic activity stability, indicating its satisfactory potential industrial applications. Density functional theory (DFT) analysis revealed that promoted capability derived synergistic effect iron cobalt atoms within molecule, while functioned as core process. This work provides strategy towards high-efficiency to significantly accelerate splitting.

Language: Английский

Citations

0