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Defect-mediated, thermally-activated encapsulation of metals at the surface of graphite

Journal Article · · Carbon
Here, 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.
Research Organization:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1411949
Alternate ID(s):
OSTI ID: 1576048
Report Number(s):
IS-J--9408; PII: S0008622317310977
Journal Information:
Carbon, Journal Name: Carbon Journal Issue: C Vol. 127; ISSN 0008-6223
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (7)

Squeezed nanocrystals: equilibrium configuration of metal clusters embedded beneath the surface of a layered material journal January 2019
Spontaneous selective deposition of iron oxide nanoparticles on graphite as model catalysts journal January 2019
Reverse-engineering of graphene on metal surfaces: a case study of embedded ruthenium journal October 2018
Shapes of Fe nanocrystals encapsulated at the graphite surface journal February 2020
Dy adsorption and penetration on defected graphene by first-principles calculations journal February 2018
Energetics of Cu adsorption and intercalation at graphite step edges journal March 2019
Delamination of a Thin Film Driven by a Flat Cylindrical Shaft journal July 2018

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