Methods for synthesizing graphene from a lignin source

摘要

Embodiments of the presently-disclosed subject matter include methods for synthesizing carbon nanomaterials from a lignin and/or source thereof. Exemplary methods comprise a process of thermal treating a lignin and/or source thereof in the presence of a catalyst to synthesize graphene nanosheets.

主权项

1. A method of synthesizing carbon nanomaterials, the method comprising:
mixing a lignin and/or source thereof and a catalyst to form a mixture, wherein the lignin and/or source thereof is a kraft lignin; heating the mixture at a temperature of at least 600° C. for at least 30 minutes; cooling the heated mixture to form a cooled mixture including graphene nanomaterials; and following the cooling step, purifying the mixture to increase a concentration of carbon nanomaterials in the cooled mixture.