Title: X-ray photoemission analysis of clean and carbon monoxide-chemisorbed platinum(111) stepped surfaces using a curved crystal

Journal Article · · Nature Communications
DOI: https://doi.org/10.1038/ncomms9903 · OSTI ID:1323140
 [1];  [2];  [3];  [4];  [4]; ORCiD logo [2];  [4];  [4];  [4];  [5];  [6];  [7];  [8]
  1. Donostia International Physics Centre, San Sebastian (Spain); Brookhaven National Lab. (BNL), Upton, NY (United States); Brookhaven National Laboratory, Photon Sciences Directorate, NSLS II, Upton, New York, NY (United States)
  2. Centro de Fisica de Materiales CSIC/UPV-EHU-Materials Physics Center, San Sebastian (Spain)
  3. Centro de Fisica de Materiales CSIC/UPV-EHU-Materials Physics Center, San Sebastian (Spain); IKERBASQUE, Basque Foundation for Science, Bilbao (Spain)
  4. Lund Univ., Lund (Sweden)
  5. Donostia International Physics Centre, San Sebastian (Spain); Univ. del Pais Vasco, San Sebastian (Spain)
  6. Donostia International Physics Centre, San Sebastian (Spain); IKERBASQUE, Basque Foundation for Science, Bilbao (Spain)
  7. Donostia International Physics Centre, San Sebastian (Spain); Centro de Fisica de Materiales CSIC/UPV-EHU-Materials Physics Center, San Sebastian (Spain)
  8. Donostia International Physics Centre, San Sebastian (Spain); Centro de Fisica de Materiales CSIC/UPV-EHU-Materials Physics Center, San Sebastian (Spain); Univ. del Pais Vasco, San Sebastian (Spain)
+ Show Author Affiliations

Surface chemistry and catalysis studies could significantly gain from the systematic variation of surface active sites, tested under the very same conditions. Curved crystals are excellent platforms to perform such systematics, which may in turn allow to better resolve fundamental properties and reveal new phenomena. This is demonstrated here for the carbon monoxide/platinum system. We curve a platinum crystal around the high-symmetry (111) direction and carry out photoemission scans on top. This renders the spatial core-level imaging of carbon monoxide adsorbed on a 'tunable' vicinal surface, allowing a straightforward visualization of the rich chemisorption phenomenology at steps and terraces. Through such photoemission images we probe a characteristic elastic strain variation at stepped surfaces, and unveil subtle stress-release effects on clean and covered vicinal surfaces. Lastly, these results offer the prospect of applying the curved surface approach to rationally investigate the chemical activity of surfaces under real pressure conditions.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
SC0012704
OSTI ID:
1323140
Report Number(s):
BNL-108506-2015-JA; ncomms9903
Journal Information:
Nature Communications, Journal Name: Nature Communications Vol. 6; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (9)

Heterogeneous Surfaces as Structure and Particle Size Libraries of Model Catalysts journal July 2018
Atomic-Scale Identification of the Electrochemical Roughening of Platinum journal November 2019
Unusual oxidation-induced core-level shifts at the HfO2/InP interface journal February 2019
Under-cover stabilization and reactivity of a dense carbon monoxide layer on Pt(111) journal January 2019
2D and 3D imaging of the gas phase close to an operating model catalyst by planar laser induced fluorescence journal September 2016
Stepped surfaces journal February 2018
Structure and electronic states of vicinal Ag(111) surfaces with densely kinked steps journal July 2018
Boron nitride monolayer growth on vicinal Ni(1 1 1) surfaces systematically studied with a curved crystal journal February 2019
Site-specific reactivity of molecules with surface defects—the case of H 2 dissociation on Pt journal January 2019

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36 MATERIALS SCIENCE
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
CO chemisorption
atomic steps
atoms
au
catalytic-oxidation
co
curved crystals x-ray photoemission
desorption
leed
surface chemistry