One-step solvothermal synthesis of graphene/Mn3O4 nanocomposites and their electrochemical properties for supercapacitors

Autor:	Xiong Zhang, Yanwei Ma, Yao Chen, Xianzhong Sun, Dacheng Zhang
Rok vydání:	2012
Předmět:	Supercapacitor Materials science Nanocomposite Graphene Mechanical Engineering Solvothermal synthesis Graphene foam Nanoparticle Nanotechnology Condensed Matter Physics law.invention Chemical engineering Mechanics of Materials law Electrode General Materials Science Graphene oxide paper
Zdroj:	Materials Letters. 68:336-339
ISSN:	0167-577X
Popis:	We reported a facile approach to synthesize nanocomposites with Mn 3 O 4 nanoparticles anchored to graphene nanosheets by one-step solvothermal process, which combined the growth of Mn 3 O 4 nanoparticles and the reduction of graphene oxide. It was found that Mn 3 O 4 nanoparticles with size of 3–5 nm homogeneously deposited on graphene nanosheets. The electrochemical properties of graphene/Mn 3 O 4 nanocomposite were studied as electrode materials for supercapacitors. The graphene/Mn 3 O 4 nanocomposite exhibited a specific capacitance of 147 F g − 1 in 1 M Na 2 SO 4 aqueous electrolyte and a good rate property. The improved electrochemical performance may be attributed to the increased electrode conductivity in the presence of graphene network.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::66652e7dcc682087991be16086df78c0 https://doi.org/10.1016/j.matlet.2011.10.092 Zobrazit plný text záznamu Full Text from ScienceDirect