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Metal-Oxide Decorated Multilayered Three-Dimensional (3D) Porous Carbon Thin Films for Supercapacitor Electrodes.
- Source :
-
Industrial & Engineering Chemistry Research . Dec2016, Vol. 55 Issue 49, p12569-12581. 13p. - Publication Year :
- 2016
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Abstract
- We demonstrate an easy, scalable, and two-step synthesis of macroporous carbon, carbon/TiO2 (cTiO2), carbon/MnO2 (cMnO2), and carbon/TiO2/MnO2 (cTiO2/MnO2) composite thin films for energy storage applications. The direct synthesis of the hybrid films was achieved by spin coating, followed by carbonization. The unique multilayered three-dimensional (3D) pore structure of the film permits the synthesis of carbon/TiO2/MnO2 nanocomposites with enhanced metal-oxide nanoparticle loading up to 50 wt %. The as-synthesized porous carbon thin films were tested for their supercapacitor activity and a maximum specific capacitance ~44 F g-1 was achieved with a film thickness of 350 nm. The as-prepared cTiO2, cMnO2, and cTiO2/MnO2 electrodes exhibit high specific capacitances of 178, 237, and 297 F g-1, respectively, at 5 mV s-1, because of their unique properties with impregnated nanoparticles, and direct fabrication on conductive substrates. This simple scalable coating technique is compatible with the high-speed roll-to-roll manufacturing processes and easily generalized for other carbon/metal oxide composites. We demonstrate an easy, scalable, two-step synthesis method similar to the roll-to-roll process for the synthesis of multilayered of macroporous carbon, carbon/TiO2 (cTiO2), carbon/MnO2 (cMnO2), and carbon/TiO2/MnO2 (cTiO2/MnO2) composite thin films for energy storage applications. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 08885885
- Volume :
- 55
- Issue :
- 49
- Database :
- Academic Search Index
- Journal :
- Industrial & Engineering Chemistry Research
- Publication Type :
- Academic Journal
- Accession number :
- 120229909
- Full Text :
- https://doi.org/10.1021/acs.iecr.6b03396