Countering <i>in situ</i> reduction of SnO<sub>2</sub> during electrochemical CO<sub>2</sub> conversion <i>via</i> oxidative pulsing
The application of periodic anodic pulses in CO<sub>2</sub> electroreduction (p-eCO<sub>2</sub>R) offers a promising route to counteract the inevitable <i>in situ</i> reduction of metal oxide catalysts. This study demonstrates the first application of p-eCO<sub>2</sub>R to a catalyst composed solely of a tin (oxide) active phase, using a pomegranate-structured SnO<sub>2</sub>@C nanosphere. Periodic, prolonged anodic pulses (30 s) at 0.2 V <i>vs.</i> RHE improved faradaic efficiency towards formate after 6 hours, retaining 78 ± 2% <i>versus</i> 71 ± 6% under potentiostatic conditions, suggesting p-eCO<sub>2</sub>R can extend Sn-based catalyst lifetimes for more sustainable CO<sub>2</sub> conversion.
Authors
- Kevin Van Daele (ORCID: https://orcid.org/0000-0003-4020-3606)
- Sara Bals (ORCID: https://orcid.org/0000-0002-4249-8017)
- Sven Arnouts (ORCID: https://orcid.org/0000-0002-1586-7286)
- Mathias van der Veer (ORCID: https://orcid.org/0009-0000-4909-8852)
- Tom Breugelmans (ORCID: https://orcid.org/0000-0001-5538-0408)
- Nick Daems (ORCID: https://orcid.org/0000-0001-7230-8950)
Institutions
- University of Antwerp (BE)
Publication Details
- Journal
- Materials Advances
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1039/d5ma00272a
- Primary Topic
- CO2 Reduction Techniques and Catalysts
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Agentschap Innoveren en Ondernemen
- Fonds Wetenschappelijk Onderzoek
- Vlaamse regering
- European Research Council
- Moonshot Research and Development Program