Tannin-Based Nanoscale Carbon Spherogels as Electrodes for Electrochemical Applications

Ann Kathrin Koopmann, Jorge Torres-Rodríguez, Miralem Salihovic, Juergen Schoiber, Maurizio Musso, Gerhard Fritz-Popovski, Nicola Huesing, Michael S. Elsaesser

Publikation: Beitrag in FachzeitschriftArtikelForschungBegutachtung

Abstract

A promising route to monolithic, hollow sphere carbon assemblies based on sustainable precursors with a tailored nanostructure is presented. These carbon assemblies, recently termed carbon spherogels, are generated via a polystyrene sphere template-based sol-gel process of mimosa tannin and biomass-derived 5-(hydroxymethyl)furfural. By completely replacing petroleum-based precursors (especially toxic formaldehyde) highly porous, nanoscale carbon monoliths are obtained, which are investigated as state-of-the-art, sustainable electrode materials for energy storage. This study defines the required synthesis parameters, in particular the highly acidic initial pH and a tannin/water ratio of at least 0.05 or lower, for a successful and homogeneous generation of these biobased carbon spherogels.
OriginalspracheEnglisch
Seiten (von - bis)14115-14125
Seitenumfang11
FachzeitschriftACS Applied Nano Materials
Jahrgang4.2021
Ausgabenummer12
DOIs
PublikationsstatusVeröffentlicht - 2 Dez. 2021

Bibliographische Notiz

Funding Information:
This research was financially supported by the Salzburg Center for Smart Materials (P1727558-IWB01), which is funded by the European Funds for Regional Development (EFRE) and the Austrian Wirtschaftsservice (AWS). Furthermore, M.S. is very grateful for being a recipient of the DOC Fellowship of the Austrian Academy of Sciences (ÖAW). Moreover, the authors acknowledge that the JEOL JEM F200 TEM instrument was funded by Interreg Österreich─Bayern 2014–2020 Programm-AB29─“Synthese, Charakterisierung und technologische Fertigungssätze für den Leichtbau” n2m “(nano-to-macro)”. Besides, M.M. gratefully acknowledges the financial support provided by the Interreg Italien-Österreich ITAT1059 InCIMa4 for Science and SMEs project ( https://www.incima4.eu/de/home/ ).

Publisher Copyright:
© 2021 The Authors. Published by American Chemical Society.

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