123rd General Meeting of the KCS

Type Poster Presentation
Area Material Chemistry
Room No. Exhibition Hall 2
Time 4월 19일 (금요일) 11:00~12:30
Code MAT.P-476
Subject Microwave-assisted synthesis of reduced Graphene oxide/Mn3O4 hybrids with spherical hollow structure for lithium-ion battery application
Authors Seung-Min Paek*, Min-Jae Kim1
Department of Chemistry, Kyungpook National University, Korea
1department of chemistry, Kyungpook National University, Korea
Abstract Graphene has received enormous interests in electrochemical fields owing to its large specific surface area, and excellent electrical and mass conductivities. Thus, in this study, the graphene was hybridized with manganese oxide nanoparticles which has large specific capacity in lithium-ion batteries through layer-by-layer self-assembling on polymer template. And then, microwave was irradiated to the nanohybrids for modification of their physico-chemical properties such as surface area, porosity, electrical and mass conductivity for using the anodic materials in lithium-ion battery. According to the electron microscopy (SEM, TEM) images, the nanohybrids have spherical hollow structure. In the energy dispersive spectroscopy(TEM-EDS) mapping images, it was observed that the carbon and manganese oxide were homogeneously distributed in nanohybrids. In the electrochemical tests, the obtained nanohybrids had higher electronic conductivity, ion-diffusion property and specific capacity than the bare MRGO. The obtained nanohybrids could be used as anode materials in lithium ion batteries.
E-mail rlaaswo546@naver.com