Related Experiment Video
Updated: Feb 20, 2026
08:40
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
4.3K
Facile synthesis of CoNix nanoparticles embedded in nitrogen-carbon frameworks for highly efficient electrocatalytic
Jiawei Wan1, Wenxing Chen, Chen Chen
1Department of Chemistry, Tsinghua University, Beijing 100084, China. wangdingsheng@mail.tsinghua.edu.cn.
Chemical Communications (Cambridge, England)
|October 26, 2017
Summary
Researchers developed a pyrolysis method for uniform cobalt-nickel (CoNi) nanoparticles in nitrogen-carbon frameworks. The resulting CoNi catalyst shows superior performance and stability for electrocatalytic oxygen evolution compared to iridium dioxide (IrO2).
Area of Science:
- Materials Science
- Electrochemistry
- Nanotechnology
Background:
- Developing efficient electrocatalysts is crucial for energy conversion technologies.
- Current catalysts like iridium dioxide (IrO2) are expensive and scarce.
- Nitrogen-carbon frameworks offer promising platforms for catalyst support.
Purpose of the Study:
- To synthesize highly uniform dispersed cobalt-nickel (CoNi) nanoparticles embedded in nitrogen-carbon frameworks.
- To evaluate the electrocatalytic performance and stability of the synthesized CoNi nanoparticles for oxygen evolution reactions.
- To compare the catalyst's efficacy against commercial iridium dioxide (IrO2).
Main Methods:
- Pyrolysis reduction method was employed for catalyst preparation.
- Controlled synthesis of CoNix nanoparticles within nitrogen-carbon matrices.
- Electrocatalytic oxygen evolution reaction (OER) testing was performed.
Main Results:
- Highly uniform dispersed CoNix nanoparticles were successfully prepared.
- The CoNi0.37-CN catalyst demonstrated excellent electrocatalytic activity and stability for oxygen evolution.
- The catalyst's performance surpassed that of commercial IrO2.
Conclusions:
- The pyrolysis reduction method is effective for creating advanced CoNi-based electrocatalysts.
- The CoNi0.37-CN catalyst presents a high-performance, stable alternative for oxygen evolution reactions.
- This work contributes to the development of cost-effective electrocatalysts for energy applications.
