Ko, Yohan Son, Dong Ick 2024-01-19T23:01:12Z 2024-01-19T23:01:12Z 2021-09-03 2018-05 0374-4884 https://pubs.kist.re.kr/handle/201004/121451 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. English KOREAN PHYSICAL SOC HYDROTHERMAL SYNTHESIS SUPERCAPACITOR OXIDE FACILE NANOCRYSTALS PERFORMANCE ELECTRODES Synthesis and Characterization of Mn3O4 - Graphene Core - Shell Quantum Dots for Electrochemical Pseudocapacitor Applications Article 10.3938/jkps.72.1198 1 JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.72, no.10, pp.1198 - 1202 JOURNAL OF THE KOREAN PHYSICAL SOCIETY 72 10 1198 1202 scie scopus kci ART002347270 000432364800015 2-s2.0-85046888795 Physics, Multidisciplinary Physics Article HYDROTHERMAL SYNTHESIS SUPERCAPACITOR OXIDE FACILE NANOCRYSTALS PERFORMANCE ELECTRODES Quantum dots Mn3O4 Graphene Core-shell type Electrochemical Supercapacitor