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Title: Pyrolytic synthesis and characterization of N-doped carbon nanoflakes for electrochemical applications

Highlights: • Carbon nanoflakes doped with nitrogen were produced by a pyrolytic technique. • Quarternary, pyrrolic and pyridinic types of nitrogen are confirmed by XPS. • Nitrogen content depends on precursor used and temperature processed. • Specific surface area values decrease with increasing of synthesis duration. • N-doped carbon nanoflakes may be suitable for electrochemical applications. - Abstract: Nitrogen doped carbon nanoflakes, which are very important for many electrochemical applications, were synthesized by pyrolysis of nitrogen containing organic compounds over metal oxide template. Acetonitrile, pyridine and butylamine, which are of different volatility were tested as N-containing precursors. Morphology, structure and chemical composition of the as-synthesized materials were investigated by scanning electron microscopy (SEM), high resolution transmission electron microscopy (TEM), Raman spectroscopy and X-ray photoelectron spectroscopy (XPS). It was found that materials are highly defective and consist of a few malformed graphene layers. X-ray photoelectron spectra reflect the dominant graphitic and pyridinic N-bonding configuration. It was also noted that specific surface area depends on the duration and temperature of the reaction. Increase in duration and temperature led to decrease of the specific surface area from 1000 to 160 m{sup 2}/g, 1170 to 210 m{sup 2}/g and 1180 to 480 m{sup 2}/gmore » for acetonitrile, butylamine and pyridine precursors, respectively.« less
Authors:
 [1] ;  [2] ;  [1] ;  [2] ; ;  [1] ;  [3] ; ;  [1]
  1. M.V. Lomonosov Moscow State University, Department of Chemistry, Leninskie gory, 1-3, Moscow 119991 (Russian Federation)
  2. (Russian Federation)
  3. Nanyang Technological University, Centre for Disruptive Photonic Technologies, 637371 Singapore (Singapore)
Publication Date:
OSTI Identifier:
22475863
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Research Bulletin; Journal Volume: 69; Conference: ISFM 2014: 6. international symposium on functional materials, Singapore (Singapore), 4-7 Aug 2014; Other Information: Copyright (c) 2015 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; ACETONITRILE; DOPED MATERIALS; ELECTROCHEMISTRY; GRAPHENE; GRAPHITE; LAYERS; METALS; NANOSTRUCTURES; NITROGEN ADDITIONS; OXIDES; PYRIDINE; PYROLYSIS; RAMAN SPECTROSCOPY; RESOLUTION; SCANNING ELECTRON MICROSCOPY; SPECIFIC SURFACE AREA; SURFACE PROPERTIES; SYNTHESIS; TRANSMISSION ELECTRON MICROSCOPY; X-RAY PHOTOELECTRON SPECTROSCOPY