Highly conductive multilayer-graphene paper as a flexible lightweight electromagnetic shield
A graphene-based porous paper made of multilayer graphene (MLG) microsheets is developed for application as a flexible electrically conducting shielding material at radio frequency. The production process is based on the thermal expansion of a graphite intercalated compound, the successive liquid-ph...
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| Veröffentlicht in: | Carbon (New York) 2015-08, Vol.89, p.260-271 |
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| container_title | Carbon (New York) |
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| creator | Paliotta, L. De Bellis, G. Tamburrano, A. Marra, F. Rinaldi, A. Balijepalli, S.K. Kaciulis, S. Sarto, M.S. |
| description | A graphene-based porous paper made of multilayer graphene (MLG) microsheets is developed for application as a flexible electrically conducting shielding material at radio frequency. The production process is based on the thermal expansion of a graphite intercalated compound, the successive liquid-phase exfoliation of the resulting expanded graphite in a proper solvent, and finally the vacuum filtration of the MLG-suspension using a nanoporous alumina membrane. Enhancement of the electrical conductivity and electromagnetic shielding properties of the MLG paper is achieved by gentle annealing at 250 [degrees]C overnight, and by mechanical compression at 5 MPa. The obtained results show that the developed MLG papers are characterized by an electrical conductivity up to 1443.2 S/cm, porosity around 43%, high flexibility, shielding effectiveness up to 55 dB at 18 GHz with a thickness of 18 mu m. Numerical simulations are performed in order to understand the main factors contributing to the shielding performance of the new material. |
| doi_str_mv | 10.1016/j.carbon.2015.03.043 |
| format | Article |
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Numerical simulations are performed in order to understand the main factors contributing to the shielding performance of the new material.</description><identifier>ISSN: 0008-6223</identifier><identifier>DOI: 10.1016/j.carbon.2015.03.043</identifier><language>eng</language><subject>Electrical conductivity ; Electrical resistivity ; Graphene ; Graphite ; Mathematical models ; Resistivity ; Shielding</subject><ispartof>Carbon (New York), 2015-08, Vol.89, p.260-271</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c350t-fb79eb3f0fbfc67bf57049ce572493d3306919740a892bffc51a7398fb7757ca3</citedby><cites>FETCH-LOGICAL-c350t-fb79eb3f0fbfc67bf57049ce572493d3306919740a892bffc51a7398fb7757ca3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids></links><search><creatorcontrib>Paliotta, L.</creatorcontrib><creatorcontrib>De Bellis, G.</creatorcontrib><creatorcontrib>Tamburrano, A.</creatorcontrib><creatorcontrib>Marra, F.</creatorcontrib><creatorcontrib>Rinaldi, A.</creatorcontrib><creatorcontrib>Balijepalli, S.K.</creatorcontrib><creatorcontrib>Kaciulis, S.</creatorcontrib><creatorcontrib>Sarto, M.S.</creatorcontrib><title>Highly conductive multilayer-graphene paper as a flexible lightweight electromagnetic shield</title><title>Carbon (New York)</title><description>A graphene-based porous paper made of multilayer graphene (MLG) microsheets is developed for application as a flexible electrically conducting shielding material at radio frequency. 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| ispartof | Carbon (New York), 2015-08, Vol.89, p.260-271 |
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| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Electrical conductivity Electrical resistivity Graphene Graphite Mathematical models Resistivity Shielding |
| title | Highly conductive multilayer-graphene paper as a flexible lightweight electromagnetic shield |
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