Synthesis and characterization of Mn3O4-graphene core-shell quantum dots for electrochemical pseudocapacitor applications

Title
Synthesis and characterization of Mn3O4-graphene core-shell quantum dots for electrochemical pseudocapacitor applications
Authors
손동익고요한
Keywords
Quantum dots; Mn3O4; Graphene; Core-shell type; Electrochemical; Supercapacitor
Issue Date
2018-05
Publisher
Journal of the Korean Physical Society
Citation
VOL 72, NO 10-1202
Abstract
We report on the in-situ chemical growth of unique core-shell quantum dots (QDs) with single layer graphene on the surfaces of the Mn3O4 QDs and on their structural, optical and electrical properties. The Mn3O4-graphene QDs were synthesized through a simple hydrothermal technique. In order to enhance performance for electrochemical energy storage, we developed core (active material) - shell (conductive material)-type Mn3O4 - graphene QDs as electrode materials by using an aqueous electrolyte (6M KOH). As a result, the performance of electrochemical energy storage exhibit a specific capacitance of 452.72 Fg− 1 at a current density of 1 Ag− 1.
URI
http://pubs.kist.re.kr/handle/201004/67640
ISSN
0374-4884
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KIST Publication > Article
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