Method of producing graphene from liquid metal
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United States of America Patent
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Mar 15, 2016
Grant Date -
May 7, 2015
app pub date -
Nov 1, 2013
filing date -
Nov 1, 2013
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Abstract
A method for producing a graphene layer on a multilayered plate containing, as the graphene forming matrix, an external layer composed of a metal or a metal alloy and, as a support substrate, the transition metals and/or their alloys and/or metalloids and/or their solutions and compounds, the method involving subjecting the multilayered plate to heat treatment in the following stages: plate heating until the plate reaches a temperature that is between 0.5° C. and 50° C., annealing, at a constant or variable temperature from the temperature range, for a period between 60 and 600 seconds and cooling, with the cooling rate maintained between 0.1 and 2° C./min in the temperature range of 1,200° C.-1,050° C.
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