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Updated: Aug 6, 2026
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Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production
Published on: December 6, 2021
Beyond supported catalysts: Pt/NiFe oxide cluster-cluster heterostructures for enhanced alkaline hydrogen evolution
Yuran Li1,2, Chenwei Ni1,2, Ruizhi Duan1,3
1State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, Dalian 116023, China. pwzhou@dicp.ac.cn.
Chemical Communications (Cambridge, England)
|July 16, 2026
Summary
A novel platinum-nickel-iron oxide catalyst (Pt/Ni0.8Fe0.2Ox-C) significantly enhances alkaline hydrogen evolution. This advanced catalyst achieves a low overpotential and Tafel slope, demonstrating its efficiency for clean energy applications.
Area of Science:
- Materials Science
- Electrochemistry
- Catalysis
Background:
- Efficient hydrogen evolution is crucial for renewable energy technologies.
- Developing cost-effective and high-performance electrocatalysts for alkaline media remains a challenge.
- Nanostructured catalysts with synergistic effects are promising for improved catalytic activity.
Purpose of the Study:
- To develop a novel cluster-cluster Pt/Ni0.8Fe0.2Ox-C catalyst.
- To evaluate its performance for efficient alkaline hydrogen evolution reaction (HER).
- To elucidate the catalytic mechanism enabled by the strongly coupled interface.
Main Methods:
- Synthesis of a cluster-cluster Pt/Ni0.8Fe0.2Ox-C electrocatalyst.
- Electrochemical characterization using techniques like linear sweep voltammetry and electrochemical impedance spectroscopy.
- Analysis of catalytic performance under alkaline conditions, including overpotential and Tafel slope determination.
Main Results:
- The Pt/Ni0.8Fe0.2Ox-C catalyst achieved an exceptionally low overpotential of 37 mV at 10 mA cm-2.
- A small Tafel slope of 33.6 mV dec-1 was recorded, indicating an efficient HER pathway.
- The strongly coupled interface facilitated cooperative dual-site catalysis, enhancing water dissociation and the Volmer step.
Conclusions:
- The developed Pt/Ni0.8Fe0.2Ox-C catalyst demonstrates superior performance for alkaline hydrogen evolution.
- Synergistic effects at the Pt/Ni0.8Fe0.2Ox interface are key to its high catalytic activity.
- This catalyst represents a significant advancement for efficient and sustainable hydrogen production.
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