Agrawal, Pinki Rani and Kumar, Rajeev and Teotia, Satish and Kumari, Saroj and Mondal, D. P. and Dhakate, Sanjay R. (2019) Lightweight, high electrical and thermal conducting carbon-rGO composites foam for superior electromagnetic interference shielding. Composites Part B: Engineering, 160. pp. 131-139. ISSN 1359-8368

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Abstract

Lightweight and high strength carbon-rGO composite foams were inventively fabricated by simple sacrificial template technique using reduced graphene oxide (rGO) and phenolic resin as a carbon source. The carbon-rGO composite foams were fabricated by two different routes. In one case, rGO was incorporated in phenolic resin and carbon foam developed by several heat treatments. In the other case, graphene oxide (GO) was decorated over carbon foam and converted into rGO decorated carbon foam by heat treatment. The EMI shielding of carbon-rGO composite foams was measured in the X-band frequency range (8.2-12.4 GHz) and mechanisms were systematically studied with respect to the rGO and porous structure. The EMI SE of carbon foams was increased from -23.2 to -50.7 dB by the decoration of 1.0 wt % rGO. The thermal conductivity achieves as high as 1.4 W/(m K) by incorporation of 4.0 wt % rGO in carbon foam. All the results indicated that this effort provided a novel, simple, low-cost concept for fabricating lightweight, high electrical and thermal conducting carbon-rGO composite foam for high-performance EMI shielding applications.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/s Elsevier.
Subjects:	Engineering > Engineering (General) Materials Science
Divisions:	UNSPECIFIED
Depositing User:	Mr. Yogesh Joshi
Date Deposited:	31 Dec 2020 11:51
Last Modified:	31 Dec 2020 11:51
URI:	http://npl.csircentral.net/id/eprint/4280

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