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Related Experiment Video

Updated: Dec 11, 2025

Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production
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Superb Hydrogen Evolution by a Pt Nanoparticle-Decorated Ni3S2 Microrod Array.

Zhicai Xing1, Dewen Wang1,2, Tian Meng1,2

  • 1State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, China.

ACS Applied Materials & Interfaces
|August 19, 2020
PubMed
Summary

Platinum nanoparticle decoration on nickel sulfide microrods significantly enhances hydrogen evolution reaction (HER) catalysis. This novel Pt/Ni3S2/NF catalyst achieves superior performance in alkaline and neutral media, outperforming commercial platinum catalysts.

Keywords:
density functional theory calculationheterostructures arrayhydrogen evolution reactioninterface engineeringsynergetic catalysis

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Catalysis

Background:

  • Nickel sulfide (Ni3S2) shows promise as an oxygen evolution reaction catalyst.
  • Interface engineering of Ni3S2 is crucial for overcoming suppressed hydrogen evolution reaction (HER) performance due to sulfur-hydrogen bonds.
  • Developing efficient HER catalysts is vital for electrochemical energy conversion.

Purpose of the Study:

  • To develop an efficient strategy for enhancing the HER performance of Ni3S2.
  • To construct a platinum nanoparticle-decorated Ni3S2 microrod array on nickel foam (Pt/Ni3S2/NF).
  • To investigate the catalytic activity and stability of the Pt/Ni3S2/NF heterostructure for HER.

Main Methods:

  • Hydrothermal synthesis of Ni3S2 microrod array on Ni foam.
  • Electrodeposition of platinum nanoparticles onto the Ni3S2/NF substrate.
  • Electrochemical characterization of the Pt/Ni3S2/NF heterostructure for HER performance.
  • Density functional theory (DFT) calculations to support experimental findings.

Main Results:

  • The Pt/Ni3S2/NF heterostructure exhibited an exceptionally low overpotential of 10 mV at 10 mA cm-2 in alkaline media.
  • Achieved Pt mass activity (5.52 A mg-1) and normalized current density (1.84 mA cm-2) were 8.8 and 15.3 times higher than commercial Pt/C, respectively.
  • Demonstrated significantly enhanced catalytic performance and stability in neutral media compared to existing catalysts.

Conclusions:

  • The constructed Pt/Ni3S2 interface synergistically promotes water dissociation and hydrogen evolution.
  • The Pt/Ni3S2/NF heterostructure represents a highly efficient and stable catalyst for HER in various electrolytes.
  • This strategy offers a promising pathway for designing advanced electrocatalysts for energy applications.