Catalytic Synergy on PtNi Bimetal Catalysts Driven by Interfacial Intermediate Structures

Cited 50 time in webofscience Cited 21 time in scopus
  • Hit : 275
  • Download : 0
Platinum-based bimetallic catalysts exhibit surface atomic rearrangement in various adsorbate environments, which significantly impacts catalysis. A molecular-level understanding of intermediate structures created during catalysis is essential for developing high-performance bimetal catalysts. We show that intermediate Pt-NiO1-x interfacial structures drive the catalytic synergistic effect observed on Pt3Ni nanocrystals. Real-time microscopic observations at ambient pressure show the formation of oxygen-driven Ni oxide clusters on the surface and provide direct evidence of Pt-NiO1-x interfacial structure formation. Spectroscopic analysis, including ambient-pressure X-ray photoelectron spectroscopy and diffuse reflectance infrared Fourier-transform spectroscopy, and catalytic measurements elucidate the role of Pt-NiO1-x interfacial structures and the catalytic reaction mechanism in CO oxidation. Our results indicate that metal-oxide interfacial intermediate structures in bimetal catalysts relate to the catalytic enhancement of the strong metal-support interaction (SMSI) effect.
Publisher
AMER CHEMICAL SOC
Issue Date
2020-09
Language
English
Article Type
Article
Citation

ACS CATALYSIS, v.10, no.18, pp.10459 - 10467

ISSN
2155-5435
DOI
10.1021/acscatal.0c02467
URI
http://hdl.handle.net/10203/281884
Appears in Collection
CH-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 50 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0