Manganese antimonate (MnSbO) electrocatalysts for the oxygen-evolution reaction (OER) were synthesized via chemical vapor deposition. Mn-rich rutile MnSbO catalysts on fluorine-doped tin oxide (FTO) supports drove the OER for 168 h (7 days) at 10 mA cm with a time-averaged overpotential of 687 ± 9 mV and with >97% Faradaic efficiency. Time-dependent anolyte composition analysis revealed the steady dissolution of Mn and Sb. Extended durability analysis confirmed that Mn-rich MnSbO materials are more active but dissolve at a faster rate than previously reported Sb-rich MnSbO alloys.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11134315 | PMC |
| http://dx.doi.org/10.1021/acsaem.4c00135 | DOI Listing |
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