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Porous N- and S-doped carbon-carbon composite electrodes by soft-templating for redox flow batteries

Schnucklake, M.; Eifert, L. 1; Schneider, J.; Zeis, R. 2; Roth, C.
1 Karlsruher Institut für Technologie (KIT)
2 Institut für Physikalische Chemie (IPC), Karlsruher Institut für Technologie (KIT)

Abstract (englisch):

Highly porous carbon–carbon composite electrodes for the implementation in redox flow battery systems have been synthesized by a novel soft-templating approach. A PAN-based carbon felt was embedded into a solution containing a phenolic resin, a nitrogen source (pyrrole-2-carboxaldehyde) and a sulfur source (2-thiophenecarboxaldehyde), as well as a triblock copolymer (Pluronic® F-127) acting as the structure-directing agent. By this strategy, highly porous carbon phase co-doped with nitrogen and sulfur was obtained inside the macroporous carbon felt. For the investigation of electrode structure and porosity X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and nitrogen sorption (BET) were used. The electrochemical performance of the carbon felts was evaluated by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The N- and S-doped carbon electrodes show promising activity for the positive side reaction and could be seen as a significant advance in the design of carbon felt electrodes for use in redox flow batteries.

Verlagsausgabe §
DOI: 10.5445/IR/1000099616
Veröffentlicht am 06.11.2019
DOI: 10.3762/BJNANO.10.113
Zitationen: 10
Web of Science
Zitationen: 10
Zitationen: 11
Cover der Publikation
Zugehörige Institution(en) am KIT Helmholtz-Institut Ulm (HIU)
Institut für Physikalische Chemie (IPC)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2019
Sprache Englisch
Identifikator ISSN: 2190-4286
KITopen-ID: 1000099616
HGF-Programm 37.02.03 (POF III, LK 01) System Solutions with Hydrogen
Erschienen in Beilstein journal of nanotechnology
Verlag Beilstein-Institut
Band 10
Seiten 1131-1139
Vorab online veröffentlicht am 28.05.2019
Schlagwörter N- and S-doped carbon; porous electrode; redox flow battery; soft-templating approach; vanadium
Nachgewiesen in Web of Science
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