# Potential-Dependent and Face Orientation-Dependent Electrochemical Oxidative Desorption Behavior of Sulfur Species Adsorbed on Platinum Single-Crystal Surfaces

https://mdr.nims.go.jp/datasets/b4d2b837-78dd-41b2-8fbd-aced869bce57

## File

- [morooka-et-al-2024-potential-dependent-and-face-orientation-dependent-electrochemical-oxidative-desorption-behavior-of (1).pdf](https://mdr.nims.go.jp/filesets/1a880a7d-3658-46ff-9d07-a04f7f015b9d/download) ([Detail](https://mdr.nims.go.jp/filesets/1a880a7d-3658-46ff-9d07-a04f7f015b9d.md))

## Id

b4d2b837-78dd-41b2-8fbd-aced869bce57

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-11-13T01:59:32.313862Z

## Updated at

2024-11-13T07:30:27.066670Z

## Published at

2024-11-13T07:30:27.276757Z

## Doi



## First published url

https://doi.org/10.1021/acs.jpcc.4c03227

## Date published

2024-10-03

## Recorded date published

2024-10-3

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Potential-Dependent and Face Orientation-Dependent Electrochemical Oxidative
    Desorption Behavior of Sulfur Species Adsorbed on Platinum Single-Crystal Surfaces
  title_type: original
  lang: en

## Description

- description: 'We investigated the effect of surface atomic arrangements of electrodes
    on electrochemical oxidative desorption behavior of sulfur species at Pt single-crystal
    electrodes with face orientations of (111), (110), and (100) by electrochemical
    measurements, X-ray photoelectron spectroscopy (XPS), and density functional theory
    (DFT) calculations. Upon the adsorption of elemental sulfur, electrochemical responses
    characteristic to Pt(111), Pt(110), and Pt(100) electrodes in aqueous electrolytes
    such as adsorption/desorption of hydrogen and hydroxyl species completely disappeared,
    and S 2p peaks attributed to the adsorbed sulfur appeared in XPS at each electrode.
    Those surface-structure-dependent electrochemical responses gradually recovered,
    simultaneously with the decrease of S 2p peaks, by cycling to or holding at positive
    potentials due to the oxidative desorption of adsorbed sulfur. The recovery of
    the electrochemically active surface area (ECSA) was promoted by keeping the potential
    more positive for a longer period. Among the three different face orientations,
    the oxidative desorption of sulfur started from the least positive potential at
    the Pt(111) electrode in both experiments, showing that the atomic arrangement
    of the Pt(111) electrode is most advantageous for the recovery of ECSA from sulfur
    poisoning. In the potential holding experiment, the oxidative desorption of sulfur
    occurred at less positive potential at the Pt(111), Pt(100), and Pt(110) electrodes
    in that order. One of the mechanistic reasons is explained with the DFT calculations,
    which evidenced that the adsorption energies of SO2 at the Pt(111), Pt(100), and
    Pt(110) electrodes are in the same order. This correlation suggests that the desorption
    of SO2 formed by the oxidation of the adsorbed sulfur is an important step. '
  description_type: abstract
  lang: und

## Creator

- name: Tetsuro Morooka
  role: author
  orcid: https://orcid.org/0000-0003-3436-7030
- name: Tamao Shishido
  role: author
- name: Ruttala Devivaraprasad
  role: author
- name: Ganesan Elumalai
  role: author
- name: Makoto Aoki
  role: author
- name: Tetsuroh Shirasawa
  role: author
  orcid: https://orcid.org/0000-0001-5519-6977
- name: Takuya Nakanishi
  role: author
  orcid: https://orcid.org/0000-0002-1172-718X
- name: Atsushi Ishikawa
  role: author
  orcid: https://orcid.org/0000-0001-6908-831X
- name: Toshihiro Kondo
  role: author
  orcid: https://orcid.org/0000-0002-5235-7648
- name: Takuya Masuda
  role: author
  orcid: https://orcid.org/0000-0001-7462-2177

## Contact agent



## Publisher

organization: American Chemical Society (ACS)

## Managing organization



## Keyword

- subject: Electrocatalysts
  schema: not_defined
- subject: Fuel cells
  schema: not_defined
- subject: Poisoning
  schema: not_defined
- subject: Pt
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by-nc-nd/4.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: The Journal of Physical Chemistry C
  issn: '19327447'
  volume: '128'
  issue: '39'
  start_page: 16426
  end_page: 16436

## Conference



## Related item



## Funding

- identifier: JPNP20003
  funder_name: New Energy and Industrial Technology Development Organization
- identifier: JPMJGX23H0
  funder_name: Japan Science and Technology Corporation

## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



## Energy level/transition state



## Software



## Custom property



## Fileset

- id: 1a880a7d-3658-46ff-9d07-a04f7f015b9d
  filename: morooka-et-al-2024-potential-dependent-and-face-orientation-dependent-electrochemical-oxidative-desorption-behavior-of
    (1).pdf
  content_type: application/pdf
  size: 3348864
  md5: 73ac5e074d04444d349f838b0fdc840e

## Thumbnail

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filename: morooka-et-al-2024-potential-dependent-and-face-orientation-dependent-electrochemical-oxidative-desorption-behavior-of
  (1).pdf