Generation of B-Doped Graphene Nanoplatelets Using a Solution Process and Their Supercapacitor Applications

Title
Generation of B-Doped Graphene Nanoplatelets Using a Solution Process and Their Supercapacitor Applications
Authors
박성진
Keywords
graphene . graphene oxide . boron doping . supercapacitor . solution process
Issue Date
2013
Publisher
ACS NANO
Series/Report no.
ACS NANO ; Vol7 no.1 Startpage 19 Endpage 26
Abstract
Chemically modified graphene (CMG) nanoplatelets have shown great promise in various applications due to their electrical properties and high surface area. Chemical doping is one of the most effective methods to tune the electronic properties of graphene materials. In this work, novel B-doped nanoplatelets (borane-reduced graphene oxide, B-rG-O) were produced on a large scale via the reduction of graphene oxide by a borane-tetrahydrofuran adduct under reflux, and their use for supercapacitor electrodes was studied. This is the first report on the production of B-doped graphene nanoplatelets from a solution process and on the use of B-doped graphene materials in supercapacitors. The B-rG-O had a high specific surface area of 466 m2 /g and showed excellent supercapacitor performance including a high specific capacitance of 200 F/g in aqueous electrolyte as well as superior surface area-normalized capacitance to typical carbon-based supercapacitor materials and good stability after 4500 cycles. Two- and three-electrode cell measurements showed that energy storage in the B-rG-O supercapacitors was contributed by ion adsorption on the surface of the nanoplatelets in addition to electrochemical redox reactions.
URI
http://dspace.inha.ac.kr/handle/10505/33096
ISSN
1936-0851
Appears in Collections:
College of Natural Science(자연과학대학) > Chemistry (화학) > Local Access Journal Papers, Reports(화학 논문, 보고서)

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