Title
Nanocarbon-based sheets: Advances in processing methods and applications
Author
Kostaras, Christos (University of Patras)
Pavlou, C. (TU Delft Bio-Electronics; University of Patras; FORTH/ICE-HT)
Galiotis, Costas (FORTH/ICE-HT)
Dassios, Konstantinos G. (University of Patras)
Date
2024
Abstract
As an emerging class of materials, nanocarbons have attracted significant interest for practical applications due to their remarkable mechanical, electrical and thermal properties coupled with high surface areas and tunable surface chemistry. However, challenges like high aspect ratios and poor dispersibility in polymer matrices hinder their widespread use in technological applications. The problems are most prominently resolved with the use of free-standing nanocarbon sheets. The present paper reviews recent advancements in fabricating and utilizing free-standing sheets consisting of various nanocarbons: carbon nanotubes and 2D materials like graphene, graphene oxide, and reduced graphene oxide. It initially delves into the nanomechanics of these sheets, focusing on inter-particle cross-linking and nacre-like microstructures. Energy storage applications are also examined, with emphasis on the role of nanocarbon-based sheets in the enhancement of specific energy capacity and performance retention of batteries, electric double layer supercapacitors, and pseudocapacitors. In the field of electromagnetic interference shielding, the sheets' superior electrical conductivity and microstructures, which amplify internal reflections in the GHz and THz regions, are showcased. Their potential in heat dissipation, owing to their high thermal conductivity and large surface area, is also explored. Additionally, they are reviewed for membrane-based separation processes, specifically gas separation, reverse osmosis, forward osmosis, and pervaporation, highlighting properties like ion selectivity and chlorine resistance. The last discussion concerns the role of nanocarbon-based sheets in catalysis where they can enhance reaction efficiencies and promote sustainable solutions. Either as catalysts and/or supports, with key features such as high surface area, electrical conductivity, and adaptable functionalities, they showcase significant potential in various catalytic processes like electrocatalysis and environmental remediation.
Subject
Carbon nanotubes
Graphene
Cross-linking
Energy storage
EMI shielding
Thermal dissipation
Water treatment
To reference this document use:
http://resolver.tudelft.nl/uuid:f8ba8bd4-2b0f-499a-89af-0b667a70ac78
DOI
https://doi.org/10.1016/j.carbon.2024.118909
Embargo date
2024-08-20
ISSN
0008-6223
Source
Carbon, 221
Bibliographical note
Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.
Part of collection
Institutional Repository
Document type
review
Rights
© 2024 Christos Kostaras, C. Pavlou, Costas Galiotis, Konstantinos G. Dassios