• Electrochemical exfoliation of graphene from pencil lead

  • Back
06/12/2024 by   

Metadata

Document Title

Electrochemical exfoliation of graphene from pencil lead

Author

Jiwarawat N., Leukulwatanachai T., Subhakornphichan K., Limwathanagura S., Wanotayan S., Atthi N., Pankiew A., Pungetmongkol P.

Affiliations

International School of Engineering, Nano-Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand; Department of Chemical Engineering, Bio-Circular-Green-economy Technology & amp; Engineering Center, BCGeTEC, Chulalongkorn University, Bangkok, 10330, Thailand; Thai Microelectronics Center (TMEC), National Science and Technology Development Agency (NSTDA), 111 Thailand Science Park, Phahonyothin Road, Khlong Nueng, Pathum Thani, Khlong Luang, 12120, Thailand

Source Title

Scientific Reports

ISSN

20452322

Year

2024

Volume

14

Issue

1

Open Access

All Open Access, Gold

Publisher

Nature Research

DOI

10.1038/s41598-024-66825-0

Abstract

Addressing an ever-increasing demand for graphene in recent years, simple, accessible, and effective graphene synthesis methods are essential. One of such methods is to use a highly oriented pyrolytic graphite (HOPG) to perform an electrochemical exfoliation. While this is one of the simplest and most cost-effective methods, the limited availability and price of HOPG hinders its usage. Our study proposed a simple and economical electrochemical exfoliation of pencil lead, producing graphene with properties comparable to that produced from HOPG. The electrical properties are determined by depositing graphene onto a screen-printed electrode. Graphene from pencil leads can achieve an electrical resistance as low as 1.86 kΩ, marking over 80% improvement in electrical performance compared to bare electrodes. This finding provides an alternative for the synthesis of graphene, increasing its availability and the cost-effectiveness as well as contributing towards a potential commercialization of the method in the future. © The Author(s) 2024.

License

CC BY

Rights

Authors

Publication Source

Scopus

Continue browsing