OPEN ACCESS

Articles online

Preparation of CoFe2O4-Graphene Composites using Aerosol Spray Pyrolysis for Supercapacitors Application

Category: Aerosol Physics and Instrumentation

Accepted Manuscripts
DOI: 10.4209/aaqr.2018.10.0372
PDF

Export Citation:  RIS | BibTeX

Chongmin Lee1,2, Hankwon Chang1,2, Hee Dong Jang 1,2

  • 1 Resources Utilization Research Center, Korea Institute of Geoscience and Mineral Resources, Yuseong-gu, Daejeon 34132, Korea
  • 2 Department of Nanomaterials Science and Engineering, University of Science and Technology, Yuseong-gu, Daejeon 34113, Korea

Highlights

The CoFe2O4-graphene composites were synthesized by aerosol spray pyrolysis.
The composites showed crumpled paper ball like morphology.
The composites showed enhanced specific capacitance and rate capability.


Abstract

Cobalt-iron oxides have attracted much attention as electrode materials for supercapacitors. Graphene loaded with cobalt ferrite (CoFe2O4) nanoparticles can exhibit enhanced specific capacitance. Here, we present three-dimensional (3D) crumpled graphene (CGR) loaded with CoFe2O4 nanoparticles. The CoFe2O4-graphene composites were synthesized from a colloidal mixture of GO, FeCl3⋅6H2O, and CoCl2⋅6H2O by one step aerosol spray pyrolysis. The CoFe2O4-GR composites showed crumpled paper ball like morphology and the size of the CoFe2O4 and CGR in the composites was around 5 nm and 500 nm, respectively. The highest specific capacitance of the CoFe2O4-graphene composites was 253 F g-1.

Keywords

Aerosol spray pyrolysis CoFe2O4 Nanoparticles Graphene Supercapacitors


Related Article

Synthesis of Multiwall Carbon Nanotube/Graphene Composite by an Aerosol Process and its Characterization for Supercapacitors

Eun Hee Jo, Sun Kyung Kim, Hankwon Chang, Chongmin Lee, Su-Ryeon Park, Ji-Hyuk Choi, Hee Dong Jang
Accepted Manuscripts
DOI: 10.4209/aaqr.2018.10.0371
PDF

Development and Validation of a Novel Particle Source for Nano-sized Test Aerosols

Christian Monsé , Christian Monz, Burkhard Stahlmecke, Birger Jettkant, Jürgen Bünger, Thomas Brüning, Volker Neumann, Dirk Dahmann
Accepted Manuscripts
DOI: 10.4209/aaqr.2018.06.0219
PDF
;