Cited by NiFe pyrophosphate enables long-term alkaline seawater oxidation at an ampere-level current density

Modulating Host–Guest Interactions in Isoreticular Fe(III)-Doped Co-MOF Precatalysts for Electrocatalytic Oxygen Evolution DOI

Yunan Ye,

Junliang Chen, Yi Wu

et al.

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

Published: April 8, 2025

The pursuit of sustainable energy solutions to address environmental challenges and crises has driven significant interest in electrocatalytic water splitting. However, the efficiency this process is hindered by sluggish kinetics anodic oxygen evolution reaction (OER). To overcome this, we synthesized two isoreticular cobalt-based metal-organic frameworks (MOFs), MOF-74 MOF-274, with different pore sizes (16.50 23.37 Å, respectively), where exhibited stronger Fe(III) adsorption as a result its confined nanosized channels. Electrochemical activation transformed these Co-MOF precatalysts into Fe-doped CoOOH nanosheets uniform elemental distribution, enhancing their OER performance. It revealed strengthened Co-O-Fe electronic interactions MOF-74-Fe X-ray photoelectron spectroscopy analysis, MOF-74-Fe-OER achieved decent activity show lower overpotential 288 mV at 10 mA cm-2 compared MOF-274-Fe-OER (357 mV). Furthermore, long-term stability tests confirmed robust durability, retaining 96.9% initial performance over h. These results underscore critical role pore-engineered MOF optimizing modulation catalytic for oxidation.

Language: Английский

Citations

Ultra-stable seawater oxidation at 1.5 A cm−2 enabled by heptafluorotantalate intercalated NiFe layered double hydroxide DOI

Hong Tang,

Zixiao Li,

Xun He

et al.

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: unknown, P. 137671 - 137671

Published: April 1, 2025

Language: Английский

Citations

Real‐Time Monitoring of Fe‐Induced Stable γ‐NiOOH in Binder‐Free FeNi MOF Electrocatalysts for Enhanced Oxygen Evolution DOI

K.J. Chen,

Y Chou,

Tsai‐Jen Lin

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: April 24, 2025

Abstract Hydrogen energy is a promising renewable source, and metal‐organic frameworks (MOFs) are considered potential electrocatalysts for water electrolysis due to their abundant active sites, high porosity, large surface area. The synthesis of bimetallic iron‐nickel‐benzene‐1,3,5‐tricarboxylate/nickel foam (FeNi‐BTC/NF) MOF reported using binder‐free one‐pot method by immersing nickel (NF) into solution benzene‐1,3,5‐tricarboxylic acid (BTC), N,N‐dimethylformamide (DMF), iron (Fe) salts. FeNi‐BTC/NF exhibits low overpotential 276 mV at 100 mA cm − 2 , Tafel slope 94 dec −1 stability exceeding 120 h. Fe‐Ni interaction facilitates the formation stable gamma‐nickel oxyhydroxide (γ‐NiOOH) phase, preventing its reversion hydroxyide (Ni(OH)₂), which crucial improving oxygen evolution reaction (OER) performance. This phase transition, revealed via in situ Raman spectroelectrochemical analysis, enhances electrocatalytic activity. Additionally, high‐valent Fe modulates electronic structure Ni, enabling transform γ‐NiOOH higher potentials, with synergistically boosting OER efficiency. findings offer insights Fe/Ni atom interactions transformations MOFs enhanced splitting.

Language: Английский

Citations

In-situ growth of CuCoZn metallic inclusions via surface alloying for enhanced water oxidation at amperometric current densities DOI

Lian Zhu,

Youwei Cheng, Yaqiong Gong

et al.

Fuel, Journal Year: 2025, Volume and Issue: 397, P. 135487 - 135487

Published: April 25, 2025

Language: Английский

Citations

NiFe pyrophosphate enables long-term alkaline seawater oxidation at an ampere-level current density DOI

Yujie Yuan,

Zixiao Li,

Xun He

et al.

Materials Today Physics, Journal Year: 2024, Volume and Issue: 49, P. 101592 - 101592

Published: Nov. 13, 2024

Language: Английский

Citations