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.
|
Text
NicyclamBPM1.pdf - Author Accepted Manuscript Download (566kB) | Preview |
|
|
Text
29_03_21_NicyclamBPM ESI.pdf - Author Accepted Manuscript Download (849kB) | Preview |
Abstract
The scaling-up of electrochemical CO<sub>2</sub> reduction requires circumventing the CO<sub>2</sub> 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<sub>2</sub> evolution dominating. Here we show that using acid-tolerant Ni molecular electrocatalysts selective (>60%) CO<sub>2</sub> reduction can be achieved in a zero-gap BPM device using a pure water and CO<sub>2</sub> feed. At a higher current density (100 mA cm<sup>-2</sup>), 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<sub>2</sub> reduction devices.
| Item Type: | Article |
|---|---|
| Divisions: | Faculty of Science and Engineering > School of Physical Sciences |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 21 Apr 2022 07:58 |
| Last Modified: | 18 Jan 2023 21:04 |
| DOI: | 10.1021/jacs.1c13024 |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3153471 |
Dimensions
Dimensions
