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Tailoring the graphene polarity through the facile and one-step electrochemical exfoliation in low concentration of exfoliation agents
, Article FlatChem ; Volume 22 , July , 2020 ; Pircheraghi, G ; Khonakdar, H. A ; Sharif University of Technology
Elsevier B.V
2020
Abstract
Graphene nanoplatelets with different oxidation degrees, from low polar few-layer graphene (FLG) to high polar graphene oxide (GO) in the same current and concentration of the oxidizing agent in low concentrated electrolytes ((NH4)2SO4, Sodium Do-decyl Sulfate (SDS), and HNO3) are prepared through a one-step and cost-effective electrochemical synthesis route to find the effect of electrolyte on the surface polarity of powders. In order to use a wide variety of electrolytes, basic, neutral, and acidic electrolytes in a concentration as low as 0.2 M are used. Exfoliated graphene nanoplatelets without any further process are obtained to simplify and accelerate the synthesis process. Several...