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| Main Authors: | , , |
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| Format: | Artículo Open Access |
| Published: |
Wiley
2026
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| Subjects: | |
| Online Access: | https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/cssc.70709 |
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Table of Contents:
- Dual‐Anion Entropy Engineering of Se–P High‐Entropy Interfaces in HEAs for Optimized H * Binding and Accelerated Hydrogen Evolution Asif Mahmood Taifeng Liu Junqing Yan ChemSusChem High‐entropy alloys (HEAs) offer unique catalytic advantages due to their multielement composition and severe lattice distortion. However, most HEA‐based electrocatalysts rely on a single‐anionic component, limiting interfacial electronic tunability and active‐site optimization. Herein, we report an entropy‐driven dual‐anion interface strategy that integrates both selenium (Se) and phosphorus (P) into a multimetallic NiCoFeMnMo (HEA) catalyst supported on Ni foam. A hydrothermal process yields the HEA precursor, followed by solid‐state phosphorization to establish a conductive phosphide backbone. Subsequent hydrothermal selenization generates Se‐rich surface domains, creating synergistic P‐in‐bulk and Se‐on‐surface dual‐anion architecture. This configuration preserves the high configurational entropy of the NiCoFeMnMo cationic framework while introducing heterogeneous Se–P coordination environments and interfacial electronic disorder that modulate electron distribution. The resulting HEA–Se–P electrode exhibits markedly enhanced hydrogen evolution reaction (HER) activity in 1.0 M KOH, delivering an overpotential of 17 mV at 10 mA·cm –2 , and outstanding long‐term durability. DFT calculations confirm that dual‐anion engineering produces an optimized interfacial ensemble with near‐thermoneutral hydrogen adsorption, enabling balanced H * adsorption energetics and enhanced catalytic turnover. This work demonstrates that dual‐anion entropy engineering is a powerful and generalizable strategy to design highly efficient HER catalysts for sustainable hydrogen production. 10.1002/cssc.70709 http://onlinelibrary.wiley.com/termsAndConditions#vor