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Title: Enhancing Graphene Protective Coatings by Hydrogen-Induced Chemical Bond Formation

Journal Article · · ACS Applied Nano Materials

Increased interactions at the graphene–metal interface are here demonstrated to yield an effective prevention of intercalation of foreign species below the graphene cover. Hereby, an engineering pathway for increasing the usability of graphene as a metal coating is demonstrated. Graphene on Ir(111) (Gr/Ir(111)) is used as a model system, as it has previously been well-established that an increased interaction and formation of chemical bonds at the graphene–Ir interface can be induced by hydrogen functionalization of the graphene from its top side. With X-ray photoelectron spectroscopy, it is shown that hydrogen-induced increased interactions at the Gr/Ir(111) interface effectively prevents intercalation of CO in the millibar range. The scheme leads to protection against at least 10 times higher pressure and 70 times higher fluences of CO, compared to the protection offered by pristine Gr/Ir(111).

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); Danish Council for Independent Research; European Research Council (ERC)
Grant/Contract Number:
AC02-05CH11231; 0602-02566B; 0602-02265B; 648551; 11744
OSTI ID:
1633834
Alternate ID(s):
OSTI ID: 1638187
Journal Information:
ACS Applied Nano Materials, Journal Name: ACS Applied Nano Materials Vol. 1 Journal Issue: 9; ISSN 2574-0970
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 15 works
Citation information provided by
Web of Science

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