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A Cobalt-Based Film for Highly Efficient Electrocatalytic Water Oxidation in Neutral Aqueous Solution
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Organic Chemistry.ORCID iD: 0000-0002-4521-2870
2016 (English)In: ChemCatChem, ISSN 1867-3880, E-ISSN 1867-3899, Vol. 8, no 17, 2757-2760 p.Article in journal (Refereed) Published
Abstract [en]

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.
Keyword [en]
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
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-194860DOI: 10.1002/cctc.201600617ScopusID: 2-s2.0-84985905384OAI: oai:DiVA.org:kth-194860DiVA: diva2:1054878
Note

QC 20161209

Available from: 2016-12-09 Created: 2016-11-01 Last updated: 2016-12-09Bibliographically approved

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