Water electrolysis is by far the most appealing method to produce green hydrogen. Among the possible technologies, Anion Exchange Membrane (AEM) water electrolyzers are promising in the medium term, as they make it possible to avoid critical and noble materials as catalyst components. However, AEMs are still lacking in performance and stability, which has become the current research focus. Here, we report the facile and inexpensive chemical modification of polyketone (PK) with a functional unit encompassing morpholinium as the positively charged group, and the fabrication of self-standing membranes. The synthesis products are investigated with an ensemble of physico-chemical and spectroscopic techniques, including solid-state and time-domain NMR, FT-IR, and thermal analysis. The membranes show good Ion Exchange Capacity values in the range 1.48–2.24 mmol g−1. A preliminary electrolysis test shows that the PK-based membrane has performance comparable to that of a commercial one.

Bonizzoni, S., Stucchi, D., Caielli, T., Sediva, E., Mauri, M., Mustarelli, P. (2023). Morpholinium-Modified, Polyketone-Based Anion Exchange Membranes for Water Electrolysis. CHEMELECTROCHEM, 10(6 (March 14, 2023)) [10.1002/celc.202201077].

Morpholinium-Modified, Polyketone-Based Anion Exchange Membranes for Water Electrolysis

Bonizzoni, Simone
Primo
;
Stucchi, Diego
Secondo
;
Caielli, Tommaso;Sediva, Eva;Mauri, Michele;Mustarelli, Piercarlo
Ultimo
2023

Abstract

Water electrolysis is by far the most appealing method to produce green hydrogen. Among the possible technologies, Anion Exchange Membrane (AEM) water electrolyzers are promising in the medium term, as they make it possible to avoid critical and noble materials as catalyst components. However, AEMs are still lacking in performance and stability, which has become the current research focus. Here, we report the facile and inexpensive chemical modification of polyketone (PK) with a functional unit encompassing morpholinium as the positively charged group, and the fabrication of self-standing membranes. The synthesis products are investigated with an ensemble of physico-chemical and spectroscopic techniques, including solid-state and time-domain NMR, FT-IR, and thermal analysis. The membranes show good Ion Exchange Capacity values in the range 1.48–2.24 mmol g−1. A preliminary electrolysis test shows that the PK-based membrane has performance comparable to that of a commercial one.
Articolo in rivista - Articolo scientifico
Anion Exchange Membrane; electrolysis; fuel cell; hydrogen; polyketone;
English
2-feb-2023
2023
10
6 (March 14, 2023)
e202201077
open
Bonizzoni, S., Stucchi, D., Caielli, T., Sediva, E., Mauri, M., Mustarelli, P. (2023). Morpholinium-Modified, Polyketone-Based Anion Exchange Membranes for Water Electrolysis. CHEMELECTROCHEM, 10(6 (March 14, 2023)) [10.1002/celc.202201077].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/402803
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