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Related Experiment Video

Updated: Aug 15, 2025

Synthesis of Platinum-nickel Nanowires and Optimization for Oxygen Reduction Performance
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Polymetallic sulfide nanosheet arrays with composite structure as a highly efficient oxygen evolution

Yahan Wen1, Fuchun Pan1, Qiaoji Zheng1

  • 1College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610066, PR China.

Journal of Colloid and Interface Science
|January 4, 2023
PubMed
Summary

A novel trimetallic sulfide electrocatalyst was developed for efficient hydrogen production via water electrolysis. This earth-abundant catalyst demonstrates superior oxygen evolution reaction performance and stability.

Keywords:
Hydrogen energyInterface modulationMorphology designOxygen evolution reactionPolymetallic sulfide

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Catalysis

Background:

  • Industrial-scale hydrogen production via water electrolysis requires cost-effective and earth-abundant electrocatalysts for the oxygen evolution reaction (OER).
  • Developing efficient OER catalysts is crucial for advancing clean energy technologies.

Purpose of the Study:

  • To design and synthesize a novel trimetallic sulfide hybrid electrocatalyst for enhanced OER performance.
  • To investigate the structure-activity relationship and optimize catalyst morphology and interfaces for improved catalytic activity and stability.

Main Methods:

  • Fabrication of a trimetallic sulfide hybrid (CoS1.097/Fe1-xS/Ni3S2/NF) nanoarray catalyst.
  • Morphology optimization using ultrathin nanosheets.
  • Interface modulation to regulate local electronic structure.

Main Results:

  • The catalyst exhibited ultralow overpotential (229 mV at 50 mA cm-2) and an excellent Tafel slope (30.2 mV dec-1).
  • The material demonstrated remarkable stability, maintaining a constant current density for 50 hours in 1.0 M KOH.
  • Ultrathin nanosheet morphology and heterogeneous interfaces significantly enhanced catalytic activity.

Conclusions:

  • The developed trimetallic sulfide catalyst offers a promising solution for efficient and stable oxygen evolution reaction.
  • The strategy of morphology optimization and interface modulation provides a pathway for designing advanced polymetallic sulfide electrocatalysts.