Cu(100) - 0.1 M KOH

echemdb identifier: engstfeld_2018_polycrystalline_17743_f4b_1 tags: BCV

A cyclic voltammogramm for Cu(100) recorded in 0.1 M KOH at a scan rate of 50.0 \(\mathrm{mV\,s^{-1}}\) from Figure 1 in A. K. Engstfeld et al. Polycrystalline and single-crystal Cu electrodes: influence of experimental conditions on the electrochemical properties in alkaline media. Chem.-Eur. J, 24(67):17743–17755, 2018.

Further information

The figure shows digitized data.

The Cu(100) electrode was prepared by:

Comment left by the curator on the published figure Small humps around 0.3 to 0.45 V are complicated to digitize.

Metadata

Details on the electrochemical system (yaml)

electrodes:
- crystallographic orientation: poly
  function: counter electrode
  material: Au
  name: CE
  shape:
    type: mesh
- function: reference electrode
  name: REF
  source:
    manufacturer: homemade
  type: RHE
- crystallographic orientation: '100'
  function: working electrode
  geometric electrolyte contact area:
    unit: 1 / cm2
  material: Cu
  name: WE
  preparation procedure:
    description:
    - Sputter and heating under UHV conditions.
  shape:
    diameter:
      unit: mm
      value: 4.4
    height:
      unit: mm
      value: 2
    type: head shaped
  source:
    manufacturer: Mateck
electrolyte:
  components:
  - name: water
    proportion:
      unit: volume percent
      value: 100
    source:
      quality: ultrapure water
      refinement: Millipore MilliQ
    type: solvent
  - concentration:
      unit: mol / l
      value: 0.1
    name: KOH
    source:
      supplier: Merck Suprapur
    type: base
  ph:
    value: 13
  temperature:
    unit: K
    value: 298.15
  type: aqueous
type: electrochemical

Citation key (bibtex)

@article{engstfeld_2018_polycrystalline_17743,
    author = "Engstfeld, Albert K and Maagaard, Thomas and Horch, Sebastian and Chorkendorff, Ib and Stephens, Ifan EL",
    title = "Polycrystalline and single-crystal Cu electrodes: influence of experimental conditions on the electrochemical properties in alkaline media",
    journal = "Chem.-Eur. J",
    volume = "24",
    number = "67",
    pages = "17743--17755",
    year = "2018",
    abstract = "Single and polycrystalline Cu electrodes serve as model systems for the study of the electroreduction of CO2, 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."
}

Details about the original figure in the publicaton (yaml).

comment: Small humps around 0.3 to 0.45 V are complicated to digitize.
fields:
- name: E
  orientation: x
  reference: RHE
  type: number
  unit: V
- name: j
  orientation: y
  type: number
  unit: uA / cm2
measurement type: CV
scan rate:
  unit: mV / s
  value: 50.0
simultaneous measurements: []
type: digitized
version: 1

Details about the curation process of this entry (yaml).

process:
- date: '2021-07-09'
  name: Albert Engstfeld
  orcid: https://orcid.org/0000-0002-9686-3948
  role: curator
- date: '2022-01-21'
  name: Albert Engstfeld
  orcid: https://orcid.org/0000-0002-9686-3948
  role: reviewer

---