Continuous Tuning of Fe‐O Covalency via Bioengineering for Facilitating Overall Water Splitting DOI Open Access
Guang Li,

Shengqi Zhang,

W.-J. Li

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 30, 2024

Abstract The applications of Fe‐based electrocatalysts in oxygen evolution reactions (OER) and hydrogen (HER) are hindered due to poor stability catalytic activity originating from rapid Fe leaching the intrinsic electronic structure FeOOH. Here, study presents a strategy precisely continuously tune morphology FeOOH covalent characteristics Fe–O bonds by controlling coverage extracellular polymeric substances (EPS) on surface. Operando spectroscopy theoretical calculations reveal that regulating covalency induces changes intermediate adsorption strength metal leaching, leading volcano‐shaped trend durability as function covalency. Notably, HER, negatively charged sites EPS exhibit superior *H compared bare In particular, 2 @FeOOH exhibits excellent performance for both OER (η 10 = 240 mV) HER 52 mV), with outstanding over 200 hours at 100 mA cm⁻ . current density also reaches merely 1.51 V two‐electrode configuration, significantly surpassing other bifunctional electrocatalysts. This approach will provide promising pathway enhance water electrolysis through precise modulation coverage.

Language: Английский

Obtaining materials from local sources: surface modification engineering enabled substrates for water splitting DOI
Derun Li, Junjie Huang,

Yuan Heng

et al.

Chemical Communications, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Substrate surface modification engineering is a novel method to prepare electrode and can be called self-derived reaction of substrates. Pristine substrates, such as foil, mesh, foam, react directly with modifying agents obtain electrode.

Language: Английский

Citations

0
Mo-Migration-Induced Secondary Surface Reconstruction Enables Highly Efficient Oxygen Evolution Reaction DOI
Yiling Li,

Liu Zhong-hu,

Yong Feng

et al.

ACS Materials Letters, Journal Year: 2025, Volume and Issue: unknown, P. 2071 - 2079

Published: April 30, 2025

Language: Английский

Citations

0
Continuous Tuning of Fe‐O Covalency via Bioengineering for Facilitating Overall Water Splitting DOI Open Access
Guang Li,

Shengqi Zhang,

W.-J. Li

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 30, 2024

Abstract The applications of Fe‐based electrocatalysts in oxygen evolution reactions (OER) and hydrogen (HER) are hindered due to poor stability catalytic activity originating from rapid Fe leaching the intrinsic electronic structure FeOOH. Here, study presents a strategy precisely continuously tune morphology FeOOH covalent characteristics Fe–O bonds by controlling coverage extracellular polymeric substances (EPS) on surface. Operando spectroscopy theoretical calculations reveal that regulating covalency induces changes intermediate adsorption strength metal leaching, leading volcano‐shaped trend durability as function covalency. Notably, HER, negatively charged sites EPS exhibit superior *H compared bare In particular, 2 @FeOOH exhibits excellent performance for both OER (η 10 = 240 mV) HER 52 mV), with outstanding over 200 hours at 100 mA cm⁻ . current density also reaches merely 1.51 V two‐electrode configuration, significantly surpassing other bifunctional electrocatalysts. This approach will provide promising pathway enhance water electrolysis through precise modulation coverage.

Language: Английский

Citations

1