Journal article
Synthesis of carbon core–shell pore structures and their performance as supercapacitors
Microporous and mesoporous materials, v 218(C), pp 130-136
01 Dec 2015
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
High-power supercapacitors require excellent electrolyte mobility within the pore network and high electrical conductivity for maximum capacitance and efficiency. Achieving high power typically requires sacrificing energy densities, as the latter demands a high specific surface area and narrow porosity that impedes ion transport. We present a novel solution for this optimization problem: a nanostructured core–shell carbonaceous material that exhibits a microporous carbon core surrounded by a mesoporous, graphitic shell. Our tunable synthesis parameters yielded a structure that features either a sharp or a gradual transition between the core and shell sections. Electrochemical supercapacitor testing using organic electrolyte revealed that these novel core–shell materials outperform carbons with homogeneous pore structures. The hybrid core–shell materials showed a combination of good capacitance retention, typical for the carbon present in the shell and high specific capacitance, typical for the core material. These materials achieved power densities in excess of 40 kW kg−1 at energy densities reaching 27 Wh kg−1.
[Display omitted]
•Novel core–shell carbonaceous material.•Sharp transition or gradual change.•High specific surface area combined with good mass transfer.•Increasing power density without dropping energy density.
Metrics
Details
- Title
- Synthesis of carbon core–shell pore structures and their performance as supercapacitors
- Creators
- Teguh Ariyanto - Lehrstuhl für Chemische Reaktionstechnik, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstrasse 3, 91058 Erlangen, GermanyBoris Dyatkin - Department of Materials Science & Engineering, A.J. Drexel Nanomaterials Institute, Drexel University, Philadelphia, PA 19104, USAGui-Rong Zhang - Lehrstuhl für Chemische Reaktionstechnik, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstrasse 3, 91058 Erlangen, GermanyAndreas Kern - Lehrstuhl für Chemische Reaktionstechnik, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstrasse 3, 91058 Erlangen, GermanyYury Gogotsi - Department of Materials Science & Engineering, A.J. Drexel Nanomaterials Institute, Drexel University, Philadelphia, PA 19104, USABastian J.M Etzold - Lehrstuhl für Chemische Reaktionstechnik, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstrasse 3, 91058 Erlangen, Germany
- Publication Details
- Microporous and mesoporous materials, v 218(C), pp 130-136
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000362131700017
- Scopus ID
- 2-s2.0-84938385298
- Other Identifier
- 991014969890404721
UN Sustainable Development Goals (SDGs)
This publication has contributed to the advancement of the following goals:
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Applied
- Chemistry, Physical
- Materials Science, Multidisciplinary
- Nanoscience & Nanotechnology