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Article
Defect-mediated, thermally-activated encapsulation of metals at the surface of graphite
Carbon
  • Yinghui Zhou, Ames Laboratory
  • Ann Lii-Rosales, Iowa State University and Ames Laboratory
  • Minsung Kim, Ames Laboratory
  • Mark Wallingford, Ames Laboratory
  • Dapeng Jing, Iowa State University and Ames Laboratory
  • Michael C. Tringides, Iowa State University and Ames Laboratory
  • Cai-Zhuang Wang, Iowa State University and Ames Laboratory
  • Patricia A. Thiel, Iowa State University and Ames Laboratory
Document Type
Article
Publication Version
Accepted Manuscript
Publication Date
2-1-2018
DOI
10.1016/j.carbon.2017.10.103
Abstract

We show that 3 metals – Dy, Ru, and Cu – can form multilayer intercalated (encapsulated) islands at the graphite (0001) surface if 2 specific conditions are met: Defects are introduced on the graphite terraces to act as entry portals, and the metal deposition temperature is well above ambient. Focusing on Dy as a prototype, we show that surface encapsulation is much different than bulk intercalation, because the encapsulated metal takes the form of bulk-like rafts of multilayer Dy, rather than the dilute, single-layer structure known for the bulk compound. Carbon-covered metallic rafts even form for relatively unreactive metals (Ru and Cu) which have no known bulk intercalation compound.

Comments

This is a manuscript of an article published as Zhou, Yinghui, Ann Lii-Rosales, Minsung Kim, Mark Wallingford, Dapeng Jing, Michael C. Tringides, Cai-Zhuang Wang, and Patricia A. Thiel. "Defect-mediated, thermally-activated encapsulation of metals at the surface of graphite." Carbon 127 (2018): 305-311. DOI: 10.1016/j.carbon.2017.10.103. Posted with permission.

Creative Commons License
Creative Commons Attribution-Noncommercial-No Derivative Works 4.0
Copyright Owner
Elsevier Ltd.
Language
en
File Format
application/pdf
Citation Information
Yinghui Zhou, Ann Lii-Rosales, Minsung Kim, Mark Wallingford, et al.. "Defect-mediated, thermally-activated encapsulation of metals at the surface of graphite" Carbon Vol. 127 (2018) p. 305 - 311
Available at: http://works.bepress.com/patricia_thiel/151/