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Concurrent phosphorus doping and reduction of graphene oxide
Hwee Ling Poh1, Zdeněk Sofer, Michal Nováček
1Division of Chemistry & Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371 (Singapore), Fax: (+65) 6791-1961.
Chemistry (Weinheim an Der Bergstrasse, Germany)
|March 5, 2014
Summary
This study presents a scalable, one-step method for producing phosphorus-doped graphene by reducing graphene oxide. This doped graphene exhibits enhanced electrical conductivity, making it suitable for electronic and energy storage applications.
Area of Science:
- Materials Science
- Nanotechnology
- Electrochemistry
Background:
- Doped graphene materials offer tunable electronic properties crucial for advanced applications.
- Large-scale production of doped graphene is essential for practical implementation.
- Current methods often involve multiple steps, limiting scalability.
Purpose of the Study:
- To develop a scalable, one-step method for phosphorus doping and simultaneous reduction of graphene oxide.
- To characterize the resulting phosphorus-doped graphene.
- To evaluate its electronic and electrochemical properties for potential applications.
Main Methods:
- Oxidative treatment of graphite to graphene oxide.
- One-step simultaneous doping with phosphorus and reduction of graphene oxide.
- Detailed characterization of the doped graphene material.
Main Results:
- A scalable method for one-step phosphorus doping and graphene oxide reduction was established.
- Achieved a significant dopant concentration of 3.65 at.% phosphorus.
- Phosphorus-doped graphene demonstrated substantially higher electrical conductivity compared to undoped graphene due to increased free carriers.
Conclusions:
- The developed method enables large-scale production of phosphorus-doped graphene.
- The enhanced electrical conductivity and electrochemical properties position this material for use in electronic, energy storage, and sensing devices.
