Graphene Sheet

Graphene sheet, also referred to as graphene paper, is the assembly of individual graphene nanosheets into macroscopic structure to form paper-like material. The achieved freestanding graphene sheet shows a unique combination of outstanding properties such as high mechanical strength, large surface area, and superior electrical conductivity, and stability in electrochemical environment, outperforming many other carbon substrates.

As a functional material, graphene sheet does not only act as a conducting agent, but also as a current collector. This makes graphene sheet, a promising base flexible electrode material for energy storage devices with significantly improved performances in energy density, power density and better life cycle compared to non-flexible conventional electrode architecture.

There are two main procedures to prepare free standing graphene sheets, “top-down” and “bottom-up”. The top-down processes attain graphene films from graphite, including vacuum filtration, direct evaporation, and diverse coating techniques. The bottom-up processes are based on the synthesis of graphene films from gaseous carbon sources, such as chemical vapor deposition.

With thermal conductivity and spreading-in-plane conductivity above 550 W/mK, and surface resistivity ranging as low as 0.04 Ω/sq, graphene sheet has following applications but not limited to:

• Sensors
• Electrodes for batteries and supercapacitors
• Thermal control and heat spreading
• EMI Shielding

General Information

Physical Properties

MSDS Documentation

Graphene Sheet MSDS Sheet

Pricing

Literature and Reviews

1. Graphene paper with controlled pore structure for high-performance cathodes in Li–O2 batteries, D. Kim et al., Carbon, 100, 265-272 (2016); DOI: 10.1016/j.carbon.2016.01.013.
2. Highly Conductive Graphene Paper with Vertically Aligned Reduced Graphene Oxide Sheets Fabricated by Improved Electrospray Deposition Technique, J. Yan et al., ACS Appl. Mater. Interfaces, 11, 11, 10810–10817 (2019); DOI: 10.1021/acsami.8b19811.
   
3. Highly Conducting Graphene Sheets and Langmuir-Blodgett Films, X. Li et al., Nat. Nanotech., 3, 538–542 (2008); DOI: 10.1038/nnano.2008.210.
   
4. Mechanically Strong, Electrically Conductive, and Biocompatible Graphene Paper, H. Chen et al., Adv. Mater., 20 (18), 3557-3561 (2008); 10.1002/adma.200800757.
5. Advanced mechanical properties of graphene paper, A. Ranjbartoreh et al., J. Appl. Phys., 109, 014306 (2011); DOI: 10.1063/1.3528213.
6. Flexible energy storage devices based on graphene paper, H. Gwon et al., Energy Environ. Sci., 4, 1277-1283 (2011); DOI: 10.1039/C0EE00640H.Ultrahigh Conductive
7. Graphene Paper Based on Ball-Milling Exfoliated Graphene, C. Teng et al., Adv. Funct. Mater., 27 (20), 700240 (2017); DOI: 10.1002/adfm.201700240.
8. Growth of Metal–Metal Oxide Nanostructures on Freestanding Graphene Paper for Flexible Biosensors, F. Xiao et al., Adv. Funct. Mater., 22 (12), 2487-2494 (2012); DOI: 10.1002/adfm.201200191.
9. Graphene paper for exceptional EMI shielding performance using large-sized graphene oxide sheets and doping strategy, Y. Wan et al., Carbon, 122, 74-81 (2017); DOI: 10.1016/j.carbon.2017.06.042.
10. Free-standing graphene paper for energy application: Progress and future scenarios, R.Karthick et al., Carbon, 150, 292-310 (2019); DOI: 10.1016/j.carbon.2019.05.017.
11. Recent progress in graphene-based electrodes for flexible batteries, C. Dai et al., Infomat, 2(3), 509-526 (2020); DOI: 10.1002/inf2.12039.
    
12. Flexible free-standing vertically aligned carbon nanotube on activated reduced graphene oxide paper as a high performance lithium ion battery anode and supercapacitor, A. Abdollahi et al., Electrochimica Acta 320, 134598 (2019); 10.1016/j.electacta.2019.134598.
13. Recent Advances in Graphene-Based Free-Standing Films for Thermal Management: Synthesis, Properties, and Applications, F. Gong et al., Coatings, 8(2), 63 (2018); DOI: 10.3390/coatings8020063.