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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
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Strongly Coupled CoCr2 O4 /Carbon Nanosheets as High Performance Electrocatalysts for Oxygen Evolution Reaction
Mohammad Al-Mamun1, Xintai Su1,2, Haimin Zhang3
1Centre for Clean Environment and Energy, Griffith University, Gold Coast Campus, Queensland, 4222, Australia.
Small (Weinheim an Der Bergstrasse, Germany)
|April 19, 2016
Summary
A novel cobalt chromium oxide and carbon nanosheet composite was synthesized using a simple molten-salt method. This electrocatalyst shows enhanced conductivity and preserved active sites, improving oxygen evolution reactions.
Area of Science:
- Materials Science
- Electrochemistry
- Catalysis
Background:
- Spinel oxides are promising electrocatalysts for oxygen evolution reactions (OER).
- Improving their electrical conductivity and active site stability is crucial for enhanced performance.
Purpose of the Study:
- To develop a strongly coupled cobalt chromium oxide (CoCr2 O4) /carbon nanosheet composite.
- To enhance the electrocatalytic activity of spinel oxides for OER.
Main Methods:
- A facile one-step molten-salt calcination approach was employed.
- The synthesis involved concurrent growth of CoCr2 O4 and carbon nanosheets.
Main Results:
- The composite exhibited strong coupling between CoCr2 O4 and carbon nanosheets.
- Enhanced electrical conductivity and preserved active sites were observed.
- The material demonstrated improved performance as an electrocatalyst for oxygen evolution reactions.
Conclusions:
- The one-step molten-salt method is effective for creating strongly coupled CoCr2 O4 /carbon nanosheet composites.
- The enhanced properties pave the way for improved spinel oxide electrocatalysts in OER.
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