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Hierarchical Aerographite nano-microtubular tetrapodal networks based electrodes as lightweight supercapacitor
Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA.;Linkoping Univ, IFM, Biosensors & Bioelect Ctr, S-58183 Linkoping, Sweden..
Univ Kiel, Funct Nanomat, Inst Mat Sci, Kaiserstr 2, D-24143 Kiel, Germany..
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Theory.ORCID iD: 0000-0001-5389-2469
Hamburg Univ Technol, Inst Polymers & Composites, Denickestr 15, D-21073 Hamburg, Germany..
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2017 (English)In: Nano Energy, ISSN 2211-2855, E-ISSN 2211-3282, Vol. 34, 570-577 p.Article in journal (Refereed) Published
Abstract [en]

A great deal of interest has been paid to the application of carbon-based nano-and microstructured materials as electrodes due to their relatively low-cost production, abundance, large surface area, high chemical stability, wide operating temperature range, and ease of processing including many more excellent features. The nanostructured carbon materials usually offer various micro-textures due to their varying degrees of graphitisation, a rich variety in terms of dimensionality as well as morphologies, extremely large surface accessibility and high electrical conductivity, etc. The possibilities of activating them by chemical and physical methods allow these materials to be produced with further higher surface area and controlled distribution of pores from nanoscale upto macroscopic dimensions, which actually play the most crucial role towards construction of the efficient electrode/electrolyte interfaces for capacitive processes in energy storage applications. Development of new carbon materials with extremely high surface areas could exhibit significant potential in this context and motivated by this in present work, we report for the first time the utilization of ultralight and extremely porous nano-microtubular Aerographite tetrapodal network as a functional interface to probe the electrochemical properties for capacitive energy storage. A simple and robust electrode fabrication strategy based on surface functionalized Aerographite with optimum porosity leads to significantly high specific capacitance (640 F/g) with high energy (14.2 Wh/kg) and power densities (9.67x103 W/kg) which has been discussed in detail.

Place, publisher, year, edition, pages
2017. Vol. 34, 570-577 p.
Keyword [en]
Hierarchical nanocarbons, Tubular Aerographite, Electrodes, Porous interfaces, Supercapacitors
National Category
Materials Chemistry Condensed Matter Physics
Identifiers
URN: urn:nbn:se:uu:diva-322849DOI: 10.1016/j.nanoen.2017.03.004ISI: 000400383300061OAI: oai:DiVA.org:uu-322849DiVA: diva2:1106430
Funder
Knut and Alice Wallenberg Foundation, KAW 2014.0387German Research Foundation (DFG), AD 183/17-1German Research Foundation (DFG), AD 183/20-2German Research Foundation (DFG), SFB 986M3 TP B1Swedish Research Council, VR-2016-06014
Available from: 2017-06-07 Created: 2017-06-07 Last updated: 2017-06-07Bibliographically approved

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