Nanostructured Co3O4 electrocatalyst for OER: The role of organic polyelectrolytes as soft templates

Hydrothermal synthesized delafossite CuGaO2 as an electrocatalyst for water oxidation

“…The BE at around 531.2 eV supports the -OH (oxygen in a hydroxyl group) [58,59], which is considered as the highest active oxygen, able to improve the generation of active species in the OER process [50]. The fitting peaks at 532.0 eV were assigned to the H 2 O (oxygen of physically absorbed H 2 O molecules) on CGO and CGO-CTAB samples [60,61]. The electrocatalytic activity of CGO for OER was evaluated by CV in 1.0 mol/L KOH.…”

CuCoO2 nanocrystals derived from an isopropanol-modified Cu-BTC using alkaline water oxidation

“…4e has a pair of double peaks, Co 2p 3/2 and Co 2p 1/2 , which differ by about 15 eV, mostly due to spin–orbit splitting. The characteristic peaks around 779.4 eV and 794.4 eV correspond to 3+ valence, 38 while 781.2 eV and 796.2 eV correspond to 2+ valence. 39 Owing to the presence of unpaired electrons in the Co 2+ valence orbit, there is a pair of vibrational satellite peaks (sat.)…”

Nanocrystals of CuCoO2 derived from MOFs and their catalytic performance for the oxygen evolution reaction

“…1–3 Usually as a rate-determining step in water electrolysis, the oxygen evolution reaction (OER) involves a complex four-electron transfer process and requires a high overpotential to drive the reaction. 4–6 Therefore, a lot of works were focused on the development of high-performance OER catalysts. Generally, expensive catalysts such as RuO 2 7,8 and IrO 2 9,10 are known as the most efficient OER catalysts.…”