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Updated: Jun 25, 2025

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
An asymmetrically coordinated Zn-Co diatomic site catalyst for efficient hydrogen evolution reactions
Jinhong Guo1, Jiayi Yang1, Zequn Xiang1
1Energy & Catalysis Center, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China. huazhzhai@bit.edu.cn.
Researchers developed a novel two-step pyrolysis method to create Zn-Co bimetallic catalysts. These catalysts show outstanding hydrogen evolution performance and stability, crucial for clean energy applications.
Area of Science:
- Materials Science
- Catalysis
- Electrochemistry
Background:
- Developing efficient electrocatalysts for hydrogen evolution is critical for sustainable energy technologies.
- Bimetallic catalysts offer unique synergistic properties for enhanced catalytic activity.
Purpose of the Study:
- To synthesize Zn-Co bimetallic catalysts using an innovative two-step pyrolysis method.
- To evaluate the hydrogen evolution performance and stability of the synthesized catalysts.
Main Methods:
- A two-step pyrolysis process was employed for catalyst synthesis.
- Electrochemical techniques were used to assess hydrogen evolution performance and stability.
Main Results:
- The synthesized Zn1Co1-SNC catalyst exhibited a low overpotential of 49 mV at 10 mA cm-2.
- The catalyst demonstrated excellent stability, maintaining performance over 5000 cycles.
- Synergistic effects between Zn, Co, and S/N atoms contributed to catalyst stability.
Conclusions:
- The two-step pyrolysis method is effective for producing high-performance Zn-Co bimetallic catalysts.
- The Zn1Co1-SNC catalyst shows significant promise for efficient hydrogen production.
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