Minor Product Polymerization Causes Failure of High-Current CO2‑to-Ethylene Electrolyzers

Flooding of gas diffusion electrodes (GDEs) used in electrochemical conversion of CO2 to ethylene is caused by polymerization of minor products. The polymer so created reduces the hydrophobicity of the GDE, leading initially to a reduction in the ethylene yield and finally to complete failure.

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Veröffentlicht in:ACS energy letters 2022-02, Vol.7 (2), p.599-601
Hauptverfasser: Kovalev, Mikhail K, Ren, Hangjuan, Zakir Muhamad, Marsha, Ager, Joel W, Lapkin, Alexei A
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Sprache:eng
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Zusammenfassung:Flooding of gas diffusion electrodes (GDEs) used in electrochemical conversion of CO2 to ethylene is caused by polymerization of minor products. The polymer so created reduces the hydrophobicity of the GDE, leading initially to a reduction in the ethylene yield and finally to complete failure.
ISSN:2380-8195
2380-8195
DOI:10.1021/acsenergylett.1c02450