The influence of acetone and isopropanol crossover on the direct isopropanol fuel cell
Venus D, Valeske M, Brodt M, Wasserscheid P, Thiele S (2024)
Publication Language: English
Publication Type: Journal article
Publication year: 2024
Journal
Book Volume: 169
Article Number: 107823
DOI: 10.1016/j.elecom.2024.107823
Abstract
Liquid organic hydrogen carriers (LOHC) offer a promising option to store and release hydrogen on demand within existing infrastructure. The direct isopropanol fuel cell (DIFC) uses the electrochemical acetone/isopropanol LOHC couple and combines the advantages of high fuel energy density at ambient conditions with CO2-free direct electricity production. Like other alcohol fuel cells, the DIFC combines two kinetically slow reactions, the isopropanol oxidation reaction (IOR) and the oxygen reduction reaction (ORR), requiring considerable overpotentials to drive the reactions. Accordingly, deconvoluting kinetic characteristics in the full cell is difficult. Therefore, this work uses the electrolytic electrochemical dehydrogenation unit (EDU), consisting of the IOR and the kinetically fast hydrogen evolution reaction in acidic media. This EDU then serves as an IOR full-cell model to get insights on the DIFC. Correspondingly, the demonstrated work is a comparison study investigating in-house fabricated catalyst-coated membrane electrode assemblies as hydrogen fuel cells, DIFC, and EDU. It investigates characteristic features of the DIFC and demonstrates how the acetone and isopropanol crossover affect the cathode of the DIFC.
Authors with CRIS profile
Dominik Venus
Department Chemie- und Bioingenieurwesen (CBI)
Peter Wasserscheid
Lehrstuhl für Chemische Reaktionstechnik (CRT)
Simon Thiele
Lehrstuhl für Electrocatalytic Interface Engineering (HIERN)
Involved external institutions
Germany (DE)How to cite
APA:
Venus, D., Valeske, M., Brodt, M., Wasserscheid, P., & Thiele, S. (2024). The influence of acetone and isopropanol crossover on the direct isopropanol fuel cell. Electrochemistry Communications, 169. https://doi.org/10.1016/j.elecom.2024.107823
MLA:
Venus, Dominik, et al. "The influence of acetone and isopropanol crossover on the direct isopropanol fuel cell." Electrochemistry Communications 169 (2024).
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