https://ogma.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:38550 Tue 02 Nov 2021 15:45:53 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:48177 Mon 29 Jan 2024 18:34:01 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:39202 3O₄catalysts obtained from three different cobalt precursors. The prepared hierarchical Co₃O₄ nanostructured catalysts were intensively analyzed for their textural properties and surface chemistry, such as shape, size, phase and surface area. The water oxidation performance of all three catalysts through the oxygen evolution reaction (OER) has been investigated. In alkaline 1 M KOH aqueous solution, the ultrathin hierarchical Co₃O₄–S nanosheet array catalyst exhibits significantly higher activity during water oxidation, with a low overpotential of 330 mV vs. RHE at a benchmarking current density of 10 mA cm⁻² for OER in comparison with Co₃O₄–Ac and Co₃O₄–N, which outperforms a commercial RuO2 electrocatalyst, and it remains stable for many hours. Benefiting from its unique ultrathin architecture, hierarchical and nanostructured Co₃O₄–S is endowed with a large number of active sites and a rapid charge transfer process, resulting in better water oxidation performance.]]> Fri 27 May 2022 09:38:33 AEST ]]>