Abstract
(Invited) Sulfonation of Paper: Separators with Permselectivity for Cationic Redox Probes
Meeting abstracts (Electrochemical Society), Vol.MA2025-01(57), pp.2757-2757
07/11/2025
DOI: 10.1149/MA2025-01572757mtgabs
Abstract
Cation exchange membranes commonly serve as separators in electrochemical systems. Sulfonation of paper generates a scalable, low cost separator. Cellulose is modified with anion exchange sites through oxidation and then sulfonation. Sulfonated cellulose can serve in electrochemical systems and devices.
Sulfonation conditions were optimized to yield membranes with anion exchange sites as determined by titration. Permselectivity of the membranes was evaluated cyclic voltammetrically for common, charged redox probes. Sulfonated cellulose membranes displayed low resistance and a high degree of sulfonation. Most notably, the membranes are highly permselective. Anionic redox probes were excluded from the membrane over several hours, whereas cationic probes accessed the electrodes to generate faradaic current. Sulfonation of paper yields cellulosic cation exchange membranes which can be further studied in implementation to electrochemical systems.
Details
- Title: Subtitle
- (Invited) Sulfonation of Paper: Separators with Permselectivity for Cationic Redox Probes
- Creators
- Andy Peter Lazicki - University of IowaCasey Huettman - University of IowaJohna Leddy - University of Iowa
- Resource Type
- Abstract
- Publication Details
- Meeting abstracts (Electrochemical Society), Vol.MA2025-01(57), pp.2757-2757
- DOI
- 10.1149/MA2025-01572757mtgabs
- ISSN
- 2151-2043
- eISSN
- 2151-2035
- Publisher
- The Electrochemical Society, Inc
- Number of pages
- 1
- Language
- English
- Date published
- 07/11/2025
- Academic Unit
- Chemistry
- Record Identifier
- 9984865315602771
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