Method of forming graphene material by graphite exfoliation
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United States of America Patent
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Dec 19, 2017
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Sep 1, 2016
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Sep 17, 2015
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Abstract
A method of producing graphene sheets and plates from graphitic material including (a) mixing graphitic material particles in a liquid medium to form a suspension; (b) compressing the suspension; (c) directing the compressed suspension through a local constriction into an area of reduced pressure to decompress the suspension in less than 2×10−6 second to a pressure less than 20% of the compression pressure, thereby exfoliating graphene sheets and plates from the graphitic material.
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