kth.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
In Situ Imaging of Cu2O under Reducing Conditions: Formation of Metallic Fronts by Mass Transfer
Show others and affiliations
2013 (English)In: Journal of the American Chemical Society, ISSN 0002-7863, E-ISSN 1520-5126, Vol. 135, no 45, p. 16781-16784Article in journal (Refereed) Published
Abstract [en]

Active catalytic sites have traditionally been analyzed based on static representations of surface structures and characterization of materials before or after reactions. We show here by a combination of in situ microscopy and spectroscopy techniques that, in the presence of reactants, an oxide catalyst's chemical state and morphology are dynamically modified. The reduction of Cu2O films is studied under ambient pressures (AP) of CO. The use of complementary techniques allows us to identify intermediate surface oxide phases and determine how reaction fronts propagate across the surface by massive mass transfer of Cu atoms released during the reduction of the oxide phase in the presence of CO. High resolution in situ imaging by AP scanning tunneling microscopy (AP-STM) shows that the reduction of the oxide films is initiated at defects both on step edges and the center of oxide terraces.

Place, publisher, year, edition, pages
2013. Vol. 135, no 45, p. 16781-16784
Keywords [en]
Ambient pressures, Catalytic sites, Complementary techniques, High resolution, In-situ microscopies, Oxide catalysts, Reducing conditions, Static representation
National Category
Physical Chemistry
Identifiers
URN: urn:nbn:se:kth:diva-136420DOI: 10.1021/ja408506yISI: 000327103600010PubMedID: 24168720Scopus ID: 2-s2.0-84887641653OAI: oai:DiVA.org:kth-136420DiVA, id: diva2:676210
Funder
Swedish Research Council, 62360
Note

QC 20131217

Available from: 2013-12-05 Created: 2013-12-05 Last updated: 2022-06-23Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textPubMedScopus

Authority records

Soldemo, MarkusWeissenrieder, Jonas

Search in DiVA

By author/editor
Soldemo, MarkusWeissenrieder, Jonas
By organisation
Material Physics, MF
In the same journal
Journal of the American Chemical Society
Physical Chemistry

Search outside of DiVA

GoogleGoogle Scholar

doi
pubmed
urn-nbn

Altmetric score

doi
pubmed
urn-nbn
Total: 599 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf