Developing active and stable oxygen evolution reaction (OER) catalysts that can operate in electrolyser environments is of utmost important in order to produce H2gas for electricity generation. Currently in academia, many of these studies are carried out in conventional three-electrode cell set-ups; however, this configuration may not accurately represent conditions experienced under practical electrolyser conditions. Herein, a range of transition metal oxide (TMO) catalysts are evaluated and compared in a three-electrode cell and in an electrolyser. We show that the same catalyst significantly underperforms in a three-electrode cell. Hence, many OER catalysts in academic labs may have been erroneously omitted from further optimisation processes due to showing ‘poor’ performance in conventional three-electrode cells. Herein, we wish to show this discrepancy experimentally and suggest a solution to scientists wanting to find active OER catalysts by using 3D-printing to inexpensively manufacture electrolyser devices for OER catalyst evaluation.
|Number of pages||11|
|Journal||Journal of Materials Chemistry A|
|Publication status||Published - 2021 Apr 14|
Bibliographical noteFunding Information:
M. P. B. would like to acknowledge the European Union's Horizon 2020 Research and Innovation Programme under the Marie Skłodowska-Curie grant agreement no. 884318 (TriCa-t4Energy), the European Structural and Investment Funds OP RDE-funded project “ChemJets” (no. CZ.02.2.69/0.0/0.0/16_027/ 0008351) and the Royal Society of Chemistry (RSC) Researchers Mobility grant (no. RM1802-5340). P. R. S. acknowledges the support of The Royal Academy of Engineering (CiET1718/ 59). V. N acknowledges the support of SFI AMBER (12/RC/ 2278_P2) and the ERC CoG 3D2DPrint (681544). D. J. L. B would like to acknowledge funding from the EPSRC (EP/ L015277/1, EP/P009050/1, EP/M014371/1, EP/M009394/1, EP/ M023508/1, EP/L015749/1, EP/N022971/1) for supporting the hydrogen research in the Electrochemical Innovation Lab (EIL). M. P. acknowledges the nancial support of Grant Agency of the Czech Republic (EXPRO: 19-26896X).
© The Royal Society of Chemistry 2021.
All Science Journal Classification (ASJC) codes
- Renewable Energy, Sustainability and the Environment
- Materials Science(all)