A Cobalt-Based Film for Highly Efficient Electrocatalytic Water Oxidation in Neutral Aqueous Solution
2016 (English)In: ChemCatChem, ISSN 1867-3880, E-ISSN 1867-3899, Vol. 8, no 17, 2757-2760 p.Article in journal (Refereed) Published
A cobalt-based film (Co-Hi) for water oxidation was prepared in 2-[4-(2-hydroxyethyl)piperazin-1-yl]ethanesulfonic acid buffer at pH 7.0 through a unique cyclic voltammetry electrodeposition method by applying a wide scan range from 1.40 to −1.00 V versus normal hydrogen electrode (NHE). This catalyst film displayed highly efficient activity during oxygen evolution in neutral aqueous solution. An impressive current density of more than 1.5 mA cm−2 that was stable over a prolonged time period was obtained with a remarkably low onset overpotential of 230 mV in 0.1 m phosphate buffer (pH 7.0).
Place, publisher, year, edition, pages
Wiley-VCH Verlagsgesellschaft, 2016. Vol. 8, no 17, 2757-2760 p.
catalyst films, cobalt, electrodeposition, oxidation, water splitting, Catalysts, Cyclic voltammetry, Electrodes, Solutions, Catalyst film, Electrocatalytic, Electrodeposition methods, Ethanesulfonic acid, Neutral aqueous solution, Normal hydrogen electrodes, Phosphate buffers
IdentifiersURN: urn:nbn:se:kth:diva-194860DOI: 10.1002/cctc.201600617ScopusID: 2-s2.0-84985905384OAI: oai:DiVA.org:kth-194860DiVA: diva2:1054878
QC 201612092016-12-092016-11-012016-12-09Bibliographically approved