The electrochemical characterization of copper single-crystal electrodes in alkaline media

Schouten, Klaas Jan P.; Gallent, Elena Pérez; Koper, Marc T. M.

doi:10.1016/j.jelechem.2013.03.018

Cited by 73 publications

(71 citation statements)

References 20 publications

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“…The cyclic voltammograms (CVs) of the Cu‐PVDF electrode are measured in an Ar saturated 0.1 m KHCO 3 solution (pH 8.8) (Figure 5d). In the CV for the Cu redox reaction (orange curve in Figure 5d), the oxidation peaks with onsets at 0.07 and 0.38 V can be observed, corresponding to the adsorption of hydroxide ion on Cu and the formation of Cu 2 O, respectively . The reduction peak in the potential range from 0.5 to 0.24 V can be assigned to the reduction of Cu 2 O.…”

Section: Resultsmentioning

confidence: 94%

Conformal Cu Coating on Electrospun Nanofibers for 3D Electro‐Conductive Networks

Jiang

Pan

et al. 2019

Adv Elect Materials

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Electro‐conductive nanofiber networks have potential applications as gas diffusion electrodes (GDEs) operating at solid–liquid–gas three‐phase interfaces. Flexible GDEs are developed, based on a versatile method of conformally coating a Cu layer on membranes consisting of stacked electrospun nonconductive polymer nanofibers. The Cu coating, comprising fine‐grained Cu crystals, has an average thickness of circa 50 nm and a root‐mean‐square roughness of circa 5.3 nm, maintaining the topography of polymer nanofibers. For nanofiber membranes with a thickness ranging in a few micrometers, the conformal Cu layer coats all nanofibers in the outermost layers as well as in the bulk of the membrane. All demonstrated Cu‐coated nanofiber networks have sheet resistance <2.4 Ω◽, and gas permeability in the order of 10−13 to 10−15 m2, which are comparable to some commercialized carbon based micro‐/nanofiber GDEs. Particularly, these conductive nanofiber networks have excellent bending durability, with negligible conductivity degradation after 10 000 bending test cycles. The high conductivity, gas permeability, and flexibility of these 3D nanofiber networks allow for applications as GDEs into various flexible electrochemical devices.

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Section: Resultsmentioning

confidence: 94%

Conformal Cu Coating on Electrospun Nanofibers for 3D Electro‐Conductive Networks

Jiang

Pan

et al. 2019

Adv Elect Materials

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“…Recently, Schouten et al [17][18][19] studied the CO reduction on Cu single crystals in different pHs. In accordance with Hori's studies, they observed that the onset potential for CH 4 is dependent on pH, the same was found for ethylene formation in Cu (1 1 1) facet.…”

Section: Introductionmentioning

confidence: 99%

Controlling the selectivity of CO2 electroreduction on copper: The effect of the electrolyte concentration and the importance of the local pH

et al. 2016

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“…The potentials are rescaled to the RHE scale for comparison. The CVs were extracted from the work by a) Droog and Schlenter, b) Jović and Jović from 2002 and 2003, c) Kunze et al., d) Schouten et al., e) Huang et al., and f) Le Duff et al …”

Section: Introductionmentioning

confidence: 99%

Polycrystalline and Single‐Crystal Cu Electrodes: Influence of Experimental Conditions on the Electrochemical Properties in Alkaline Media

Engstfeld

Maagaard

Horch

et al. 2018

Chemistry A European J

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Single and polycrystalline Cu electrodes serve as model systems for the study of the electroreduction of CO , CO and nitrate, or for corrosion studies; even so, there are very few reports combining electrochemical measurements with structural characterization. Herein both the electrochemical properties of polycrystalline Cu and single crystal Cu(1 0 0) electrodes in alkaline solutions (0.1 m KOH and 0.1 m NaOH) are investigated. It is demonstrated that the pre-treatment of the electrodes plays a crucial role in determining their electrochemical properties. Scanning tunneling microscopy, X-ray photoelectron spectroscopy and cyclic voltammetry are performed on Cu(1 0 0) electrodes prepared under UHV conditions; it is shown that the electrochemical properties of these atomically well-defined electrodes are distinct from electrodes prepared by other methods. Also highlighted is the significant role of residual oxygen and electrolyte convection in influencing the electrochemical properties.

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The electrochemical characterization of copper single-crystal electrodes in alkaline media

Cited by 73 publications

References 20 publications

Conformal Cu Coating on Electrospun Nanofibers for 3D Electro‐Conductive Networks

Conformal Cu Coating on Electrospun Nanofibers for 3D Electro‐Conductive Networks

Controlling the selectivity of CO2 electroreduction on copper: The effect of the electrolyte concentration and the importance of the local pH

Polycrystalline and Single‐Crystal Cu Electrodes: Influence of Experimental Conditions on the Electrochemical Properties in Alkaline Media

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