Electrochemical Exfoliation of Graphene and Application in Energy Storage System
Author(s)
Lee, Hoyoung
Advisor(s)
Editor(s)
Collections
Supplementary to:
Permanent Link
Abstract
Two-dimensional (2D) materials have gained numerous attentions for their unique properties and
exhibited promising performances in various research fields. However, demanding production techniques
for 2D materials impede their practical use. Electrochemical exfoliation is one of the efficient scalable
production methods to produce high-quality 2D materials. Here, graphene as a pioneering 2D material
was electrochemically exfoliated with various processing parameters. The key factor for efficient
exfoliation was binding energy between the intercalator and graphene sheets. Repulsive binding energy
allows competent diffusion of intercalator in-between graphite layers, and thereby boosts the
delamination process. The study of electrochemical exfoliation mechanism in anodic exfoliation system
were extended to cathodic exfoliation system for improved control over exfoliated graphene sheets. This
study is to demonstrate sustainable electrochemical exfoliation of graphene for the feasible study of as
the energy storage system. Layer-controlled graphene coated separator is demonstrated to construct
stable Li plating/stripping as protective layer in Li metal batteries.
Sponsor
Date
2023-04-30
Extent
Resource Type
Text
Resource Subtype
Dissertation