ArticleAdvanced materials (Deerfield Beach, Fla.)2025
Enhancing Oxygen Evolution Electrocatalysis in Heazlewoodite: Unveiling the Critical Role of Entropy Levels and Surface Reconstruction.
Article in Advanced materials (Deerfield Beach, Fla.), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Pre-catalysts for the hydrogen evolution reaction: from dynamic reconstruction to rational design.Chemical science · 2026Review
- Dynamic Cobalt Leaching-Redeposition Equilibrium in CoAdvanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- d-Orbital modulation of high-entropy sulfides with amorphous/crystalline heterostructures for simultaneous hydrogen production and sulfur recovery.Chemical science · 2026Article
- Upcycling Spent Lithium Iron Phosphate Battery Into Fe-CNAngewandte Chemie (International ed. in English) · 2026Article
- High-Entropy Materials for Water Splitting: An Atomic Nanoengineering Approach to Sustainable Hydrogen Production.Advanced materials (Deerfield Beach, Fla.) · 2025Review
- Enhancing Oxygen Evolution Electrocatalysis in Heazlewoodite: Unveiling the Critical Role of Entropy Levels and Surface Reconstruction.Advanced materials (Deerfield Beach, Fla.) · 2025Article
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Authors and funding
10 authors.
Funding
Abstract
Entropy engineering has proven effective in enhancing catalyst electrochemical properties, particularly for the oxygen evolution reaction (OER). Challenges persist, however, in modulating entropy and understanding the dynamic reconfiguration of high-entropy sulfides during OER. In this study, an innovative in situ corrosion method is introduced to convert low-valent nickel on a nickel foam substrate into high-entropy heazlewoodite (HES/NF), significantly boosting OER performance. By synthesizing a series of low-, medium-, and high-entropy heazlewoodites, the intrinsic factors influence catalyst surface evolution and electrocatalytic activity is systematically explored. Employing a combination of in situ and ex situ characterization techniques, it is observed that HES/NF dynamically transforms into a stable hydroxide oxide (MOOH)-sulfide composite under OER conditions. This transition, coupled with lattice distortion, optimizes the electrostatic potential distribution, ensuring superior catalytic activity and preventing surface sulfide deactivation through the formation of stable HES-MOOH species. This synergy enables HES/NF to achieve remarkably low overpotentials: 172.0 mV at 100.0 mA cm
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