@article { , title = {Oxidized mild steel S235: an efficient anode for the electrocatalytically initiated water-splitting}, abstract = {The surface of steel S235 was oxidized by Cl₂ gas and checked for its electrocatalytic efficiency regarding oxygen formation in aqueous solution. If exposed to humid Cl₂ gas for 110 min, steel S235 became an electrocatalyst that exhibits an overpotential for the oxygen evolution reaction (OER) of 462 mV at 1 mA cm² at pH 7. The OER activity of the same sample at pH 13 was moderate (347 mV overpotential at 2.0 mA cm² current density) in comparison with OER electrocatalysts developed recently. Potential versus time plots measured at a constant current demonstrate the sufficient stability of all samples under catalysis conditions at pH 7 and 13 for tens of hours. High-resolution X-ray photoelectron spectra could be reasonably resolved with the proviso that Fe₂O₃, FeO(OH), MnO(OH), and Mn₂O₃ are the predominant Fe and Mn species on the surface of the oxidized steel S235.}, doi = {10.1002/cssc.201500666}, eissn = {1864-564X}, issn = {1864-5631}, issue = {18}, journal = {Chemsuschem}, pages = {3099-3110}, publicationstatus = {Published}, publisher = {Wiley}, url = {https://hull-repository.worktribe.com/output/411727}, volume = {8}, keyword = {Specialist Research - Other, General Energy, General Materials Science, General Chemical Engineering, Environmental Chemistry}, year = {2015}, author = {Schäfer, Helmut and Küpper, Karsten and Wollschläger, Joachim and Kashaev, Nikolai and Hardege, Jörg and Walder, Lorenz and Mohsen?Beladi-Mousavi, Seyyed and Hartmann-Azanza, Brigitte and Steinhart, Martin and Sadaf, Shamaila and Dorn, Falk} }