# Electrochemical Oxidative Desorption of Adsorbed Sulfur Species on (111) Surfaces of Single Crystals of Pure Pt and Pt-Based Bimetallic Alloys

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## File

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## Id

ef3d972d-8cb8-4e07-8385-6b258955eebe

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-03-05T12:28:58.329873Z

## Updated at

2025-12-15T04:08:16.528260Z

## Published at

2025-03-26T08:27:03.191107Z

## Doi



## First published url

https://doi.org/10.1021/acs.jpcc.4c06652

## Date published

2025-01-30

## Recorded date published

2025-1-30

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Electrochemical Oxidative Desorption of Adsorbed Sulfur Species on (111)
    Surfaces of Single Crystals of Pure Pt and Pt-Based Bimetallic Alloys
  title_type: original
  lang: en

## Description

- description: The adsorption/desorption behavior of sulfurspecies at the (111) surfaces
    of pure Pt and various Pt-basedbimetallic alloys, denoted as Pt3M (M = Co, Cu,
    Fe, Pd), wasinvestigated by electrochemical measurements and X-ray photo-electron
    spectroscopy (XPS). After the adsorption of elementalsulfur, the current responses
    characteristic of the adsorption/desorption of hydrogen and hydroxyl species at
    the sulfur-free bare(111) surfaces completely disappeared, and a doublet peakcorresponding
    to the elemental sulfur appeared in the S 2p regionof XPS spectra. The characteristic
    current responses graduallyrecovered, simultaneously with the decrease of the
    S 2p peak, byrepeating the potential cycling between −0.2 and 0.8 V vs Ag/AgCl,
    indicating the oxidative desorption of S species. Except forthe Pt3Pd(111) surface,
    in which Pd has a similar atomic radius to Pt and fully occupied 4d orbitals,
    the Pt3M(111) surfaces showedhigher oxidative desorption capability than those
    of the pure Pt(111) surface; electrochemically active surface area recovered at
    thePt3M(111) surfaces by fewer potential cycles than at the Pt(111) surface. Among
    the various factors, the downshift of the d-bandcenter due to the ligand effect
    of foreign metal and the electronic interaction between adsorbed S and Pt are
    the dominant factorspromoting the oxidative desorption of sulfur as well as the
    strain effect of foreign metal with an atomic radius smaller than Pt.
  description_type: abstract
  lang: und

## Creator

- name: Makoto Aoki
  role: author
  organization: National Institute for Materials Science
- name: Tamao Shishido
  role: author
- name: Tetsuro Morooka
  role: author
  orcid: https://orcid.org/0000-0003-3436-7030
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Takuya Nakanishi
  role: author
  orcid: https://orcid.org/0000-0002-1172-718X
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Takuya Masuda
  role: author
  orcid: https://orcid.org/0000-0001-7462-2177
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26

## Contact agent



## Publisher

organization: American Chemical Society (ACS)

## Managing organization



## Keyword

- subject: fuel cell
  schema: not_defined
- subject: electrocatalysts
  schema: not_defined
- subject: sulfur poisoning
  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: '129'
  issue: '4'
  start_page: 2122
  end_page: 2131

## Conference



## Related item



## Funding

- identifier: JPNP20003
  funder_name: New Energy and Industrial Technology Development Organization

## 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: 0ed846f1-2543-47e2-806a-69334734d18e
  filename: electrochemical-oxidative-desorption-of-adsorbed-sulfur-species-on-(111)-surfaces-of-single-crystals-of-pure-pt-and-pt.pdf
  content_type: application/pdf
  size: 3625390
  md5: b32e4eb15e283b065b141ccb3ceadbad
- id: 0a5a9d68-a287-457c-981c-6d9f3d5e646a
  filename: jp4c06652_si_001.pdf
  content_type: application/pdf
  size: 146941
  md5: 74c51bcf19bb2303492af4b8dc58ba37

## Thumbnail

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filename: electrochemical-oxidative-desorption-of-adsorbed-sulfur-species-on-(111)-surfaces-of-single-crystals-of-pure-pt-and-pt.pdf