Ir(111) - \(0.1 \; \mathrm{M}\) \(\ce{ H2SO4 }\)

echemdb identifier: wan_1999_situ_6978_f2_solid
tags: BCV

A cyclic voltammogramm for Ir(111) recorded in \(0.1 \; \mathrm{M}\) \(\ce{ H2SO4 }\) at a scan rate of \(50 \; \mathrm{mV\,s^{-1}}\) from Figure 2 in L.-J. Wan et al. In situ scanning tunneling microscopy of well-defined Ir\(111\) surface: high-resolution imaging of adsorbed sulfate. The Journal of Physical Chemistry B, 103\(33\):6978–6983, 1999.

Further information

The figure shows digitized data.

The Ir(111) electrode was prepared by:

• Made out of a molten ball formed at the end of a Ir wire in a hydrogen-oxygen flame.
• Mechanical polishing of the ‘111’ surface.
• For an ordered and clean surface a flame-annealing-quenching technique was used.
• The detailed procedure is described in the source publication.

Metadata

Details on the electrochemical system (yaml)

electrodes:
- crystallographicOrientation: '111'
  function: working electrode
  material: Ir
  name: WE
  preparationProcedure:
    description:
    - Made out of a molten ball formed at the end of a Ir wire in a hydrogen-oxygen
      flame.
    - Mechanical polishing of the '111' surface.
    - For an ordered and clean surface a flame-annealing-quenching technique was used.
    - The detailed procedure is described in the source publication.
  purity:
    unit: pct
    value: 99.999
  shape:
    diameter:
      unit: mm
      value: 0.8
    type: Ir wire
  type: single crystal
electrolyte:
  components:
  - name: water
    purity:
      grade: ultrapure
    source:
      refinement: Milli-Q
    type: solvent
  - concentration:
      unit: mol / l
      value: 0.1
    name: H2SO4
    purity:
      grade: ultrapure
    source:
      supplier: Cica-Merck
    type: acid
  type: aqueous
type: electrochemical

Citation key (bibtex)

@article{wan_1999_situ_6978,
    author = "Wan, Li-Jun and Hara, Masanori and Inukai, Jungi and Itaya, Kingo",
    title = "In situ scanning tunneling microscopy of well-defined Ir(111) surface: high-resolution imaging of adsorbed sulfate",
    journal = "The Journal of Physical Chemistry B",
    volume = "103",
    number = "33",
    pages = "6978--6983",
    year = "1999",
    publisher = "ACS Publications"
}

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

comment: ''
fields:
- name: E
  orientation: horizontal
  reference: RHE
  type: number
  unit: V
- name: j
  orientation: vertical
  type: number
  unit: uA / cm2
measurementType: CV
scanRate:
  unit: mV / s
  value: 50.0
simultaneousMeasurements: []
type: digitized

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

process:
- date: '2026-01-07'
  name: Valerie Link
  orcid: https://orcid.org/0009-0004-3341-1452
  role: curator

---