Siritanaratkul, Bhavin 
ORCID: 0000-0003-0604-7670, Forster, Mark, Greenwell, Francesca, Sharma, Preetam K, Yu, Eileen H and Cowan, Alexander J ORCID: 0000-0001-9032-3548
(2022)
Zero-Gap Bipolar Membrane Electrolyzer for Carbon DioxideReduction Using Acid-Tolerant Molecular Electrocatalysts
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 144 (17).
pp. 7551-7556.
ISSN 0002-7863, 1520-5126
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Abstract
The scaling-up of electrochemical CO<inf>2</inf>reduction requires circumventing the CO<inf>2</inf>loss as carbonates under alkaline conditions. Zero-gap cell configurations with a reverse-bias bipolar membrane (BPM) represent a possible solution, but the catalyst layer in direct contact with the acidic environment of a BPM usually leads to H<inf>2</inf>evolution dominating. Here we show that using acid-tolerant Ni molecular electrocatalysts selective (>60%) CO<inf>2</inf>reduction can be achieved in a zero-gap BPM device using a pure water and CO<inf>2</inf>feed. At a higher current density (100 mA cm-2), CO selectivity decreases, but was still >30%, due to reversible product inhibition. This study demonstrates the importance of developing acid-tolerant catalysts for use in large-scale CO<inf>2</inf>reduction devices.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | 40 Engineering, 34 Chemical Sciences, 4018 Nanotechnology |
| Divisions: | Faculty of Science & Engineering > School of Physical Sciences |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 21 Apr 2022 07:58 |
| Last Modified: | 16 Jun 2026 15:15 |
| DOI: | 10.1021/jacs.1c13024 |
| Related Websites: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3153471 |
| Disclaimer: | The University of Liverpool is not responsible for content contained on other websites from links within repository metadata. Please contact us if you notice anything that appears incorrect or inappropriate. |
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