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A Cu2Se-Cu2O film electrodeposited on titanium foil as a highly active and stable electrocatalyst for the oxygen evolution reaction
- Chen, H. (author)
- Gao, Y. (author)
- Ye, L. (author)
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- Yao, Y. (author)
- Chen, X. (author)
- Wei, Y. (author)
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- (creator_code:org_t)
- 2018
- 2018
- English.
- In: Chemical Communications. - : Royal Society of Chemistry. - 1359-7345 .- 1364-548X. ; 54:39, s. 4979-4982
- Journal article (peer-reviewed)
Abstract
Subject headings
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- Many nonprecious metal-selenide-based materials have been reported as electrocatalysts with high activity for the oxygen evolution reaction (OER). Herein, a hybrid catalyst film composed of Cu2Se and Cu2O nanoparticles directly grown on Ti foil (Cu2Se-Cu2O/TF) was prepared through a simple and fast cathodic electrodeposition method. Surprisingly, this electrode required a relatively low overpotential of 465 mV to achieve a catalytic current density of 10 mA cm-2 for the OER in 0.2 M carbonate buffer (pH = 11.0). Furthermore, a long-term constant current electrolysis test confirmed the high durability of the Cu2Se-Cu2O/TF anode at a current density of 10 mA cm-2 over 20 h. The XRD, TEM and XPS analysis of the sample after the OER indicated that a CuO protective layer formed on the surface of the Cu2Se-Cu2O catalyst, which effectively suppressed further oxidation of the Cu2Se-Cu2O catalyst during the OER and resulted in sustained catalytic oxidation of water.
Subject headings
- NATURVETENSKAP -- Kemi -- Annan kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Other Chemistry Topics (hsv//eng)
Keyword
- buffer
- carbonic acid
- copper oxide
- copper selenide
- organoselenium derivative
- oxygen
- titanium
- unclassified drug
- water
- Article
- catalyst
- chemical reaction
- electrolysis
- oxidation
- pH
- surface property
- transmission electron microscopy
- X ray diffraction
- X ray photoemission spectroscopy
Publication and Content Type
- ref (subject category)
- art (subject category)
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- Chen, H.
- Gao, Y.
- Ye, L.
- Yao, Y.
- Chen, X.
- Wei, Y.
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- NATURAL SCIENCES
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- Royal Institute of Technology
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