AI Article Synopsis
- * This catalyst achieves a low overpotential of 230 mV for oxygen evolution at 10 mA cm² and maintains stability for over 10 hours without changing its surface structure.
- * The advancement in this oxygen evolution reaction (OER) catalyst addresses key challenges in hydrogen production technology, potentially lowering costs and enhancing the adoption of electrolyser systems.
Article Abstract
Unlabelled: The development of efficient, low-cost water splitting electrocatalysts is needed to store energy by generating sustainable hydrogen from low power clean but intermittent energy sources such as solar and wind. Here, we report a highly sustained low overpotential for oxygen evolution reached by the unique combination of three metals (NiCoV) prepared from a simple low temperature auto-combustion process. The amorphous multimetal oxygen evolving catalyst could be stably coated on a stainless-steel support using a tribochemical particle blasting method to create an oxygen evolution reaction (OER) electrode with a low overpotential of 230 mV at 10 mA cm and a low Tafel slope of 40 mV dec. In addition to their low overpotential, this oxygen evolving electrocatalyst preserved performance demonstrating a stability after 10 h at the technologically relevant current density and without any surface morphology alteration. Given the importance of sustainable hydrogen production, the development of this new OER catalyst points the way to removing a key technical bottleneck for the water splitting reaction and could offer a route to cost reduction and lowering hurdles to more widespread adaptation of electrolyser technologies for hydrogen production.
Supplementary Information: The online version contains supplementary material available at 10.1007/s43939-024-00087-5.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11199262 | PMC |
| http://dx.doi.org/10.1007/s43939-024-00087-5 | DOI Listing |
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