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Title: Tetracyanoethylene oxide-functionalized graphene and graphite characterized by Raman and Auger spectroscopy

The tetracyanoethylene oxide (TCNEO) functionalization of chemical vapor deposition grown large area graphene and graphite was performed using reaction of TCNEO with carbon surface in chlorobenzene. The successful functionalization has been confirmed by Raman and Auger spectroscopy, and by numerical modeling of the structure and vibrational modes of TCNEO-functionalized graphene. Raman spectra of TCNEO-functionalized graphene and graphite show several groups of lines corresponding to vibrations of attached carbonyl ylide. Lastly, one of key signatures of TCNEO attachment is the high intensity Raman band at ~1450 cm₋1, which represents the C-C=C in plane vibrations in functionalization-distorted graphene. We find Raman spectra indicate the existence of central (pristine) attachment of TCNEO to graphene surface.
Authors:
 [1] ;  [1] ;  [1] ;  [2] ;  [3] ;  [3] ;  [3] ;  [4] ;  [4] ;  [2] ;  [5]
  1. New Mexico Tech, Socorro, NM (United States). Dept. of Chemistry
  2. New Mexico State Univ., Las Cruces, NM (United States). Dept. of Physics
  3. New Mexico Tech, Socorro, NM (United States). Dept. of Materials Engineering
  4. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States). Center for Integrated Nanotechnologies
  5. New Mexico Tech, Socorro, NM (United States). Dept. of Chemistry; New Mexico Tech, Socorro, NM (United States). Dept. of Materials Engineering
Publication Date:
OSTI Identifier:
1293894
Grant/Contract Number:
AC04-94AL85000; 0925988; 1112388; 5P20RR016480-12; 8 P20 GM103451-12; U2008A061; RA2009B066
Type:
Accepted Manuscript
Journal Name:
Carbon
Additional Journal Information:
Journal Volume: 81; Journal Issue: C; Journal ID: ISSN 0008-6223
Publisher:
Elsevier
Research Org:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); USDOE National Nuclear Security Administration; National Inst. of Health (NIH) (NNSA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE