# Alignment-Controlled O<sub>2</sub> Chemisorption and Catalytic CO Oxidation on Curved Pt(111)

https://mdr.nims.go.jp/datasets/b17e6445-33f6-4877-a9ec-69e6d2d51d92

## File

- [Kurahashi_alignment-controlled-o2-chemisorption-and-catalytic-co-oxidation-on-curved-pt(111).pdf](https://mdr.nims.go.jp/filesets/63535e52-1f13-4883-a12e-f08cac96f4a4/download) ([Detail](https://mdr.nims.go.jp/filesets/63535e52-1f13-4883-a12e-f08cac96f4a4.md))

## Id

b17e6445-33f6-4877-a9ec-69e6d2d51d92

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-12-19T10:54:15.781714Z

## Updated at

2025-12-06T03:30:27.890220Z

## Published at

2025-12-05T23:33:58.756525Z

## Doi

https://doi.org/10.48505/nims.5191

## First published url

https://doi.org/10.1021/acs.jpcc.4c06503

## Date published

2024-12-19

## Recorded date published

2024-12-19

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Alignment-Controlled O<sub>2</sub> Chemisorption and Catalytic CO Oxidation
    on Curved Pt(111)
  title_type: original
  lang: en

## Description

- description: 'Steric effects in O2 chemisorption and catalytic CO oxidation on stepped
    Pt(111) surfaces have been investigated by scanning a narrow alignment-controlled
    O2 beam across a curved Pt(111) surface,  on which the densities of \{100\} (A-type)
    and \{111\} (B-type) steps vary smoothly with the distance from the center of
    the crystal. The contribution of trapping-mediated and activated chemisorption
    to these processes on the terraces and steps were discussed based on the dependence
    of these processes on the kinetic energy (80-500 meV) and alignment of O2.  The
    results indicate that (i)the probability of activated O2 chemisorption on surfaces
    with type-B steps is slightly lower than that on surfaces with type-A steps, (ii)
    CO oxidation proceeds both at terraces and steps at the sample temperature of
    693 K while it happens only at terraces at 423 K. The results of CO oxidation
    experiments at 423 K indicate that the rate of CO2 production at terraces of the
    stepped Pt(111) surface is lower than at a flat (111) surface and depends on the
    step structure. '
  description_type: abstract
  lang: und

## Creator

- name: Mitsunori Kurahashi
  role: author
  orcid: https://orcid.org/0000-0002-3802-4513

## Contact agent



## Publisher

organization: American Chemical Society (ACS)

## Managing organization



## Keyword

- subject: platinum
  schema: not_defined
- subject: alignment
  schema: not_defined
- subject: CO oxidation
  schema: not_defined
- subject: molecular oxygen
  schema: not_defined
- subject: step
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo

start_date: 2024-12-06
end_date: 2025-12-06

## Journal

- title: The Journal of Physical Chemistry C
  issn: '19327447'
  volume: '128'
  issue: '50'
  start_page: 21430
  end_page: 21437

## Conference



## Related item



## Funding

- identifier: 20H02623
  funder_name: Japan Society for the Promotion of Science
- identifier: 24K01349
  funder_name: Japan Society for the Promotion of Science
- identifier: 0361245-A
  funder_name: Iketani Science and Technology Foundation

## 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: 63535e52-1f13-4883-a12e-f08cac96f4a4
  filename: Kurahashi_alignment-controlled-o2-chemisorption-and-catalytic-co-oxidation-on-curved-pt(111).pdf
  content_type: application/pdf
  size: 2533610
  md5: b4ac6b14406076f41cc04ffa77c8f1bf

## Thumbnail

fileset_id: 63535e52-1f13-4883-a12e-f08cac96f4a4
filename: Kurahashi_alignment-controlled-o2-chemisorption-and-catalytic-co-oxidation-on-curved-pt(111).pdf