Preparation and characterization of a nitrogen-doped mesoporous carbon aerogel and its polymer precursor

László Péter Bakos, Joshua Mensah, K. László, Tamás Igricz, Imre Miklós Szilágyi

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Nitrogen-containing carbon aerogel was prepared from resorcinol–melamine–formaldehyde (R–M–F) polymer gel precursor. The polymer gel was supercritically dried with CO2, and the carbonization of the resulting polymer aerogel under nitrogen atmosphere at 900 °C yielded the carbon aerogel. The polymer and carbon aerogels were characterized with TG/DTA–MS, low-temperature nitrogen adsorption/desorption (− 196 °C), FTIR, Raman, powder XRD and SEM–EDX techniques. The thermal decomposition of the polymer aerogel had two major steps. The first step was at 150 °C, where the unreacted monomers and the residual solvent were released, and the second one at 300 °C, where the species belonging to the polymer network decomposition could be detected. The pyrolytic conversion of the polymer aerogel was successful, as 0.89 at.% nitrogen was retained in the carbon matrix. The nitrogen-doped carbon aerogel was amorphous and possessed a hierarchical porous structure. It had a significant specific surface area (890 m2 g−1) and pore volume (4.7 cm3 g−1). TG/DTA–MS measurement revealed that during storage in ambient conditions surface functional groups formed, which were released upon annealing.

Original languageEnglish
Pages (from-to)1-7
Number of pages7
JournalJournal of Thermal Analysis and Calorimetry
DOIs
Publication statusAccepted/In press - May 5 2018

Fingerprint

Aerogels
aerogels
Polymers
Nitrogen
Carbon
nitrogen
preparation
carbon
polymers
Gels
gels
carbonization
Carbonization
Specific surface area
Powders
Functional groups
thermal decomposition
Desorption
Pyrolysis
monomers

Keywords

  • Carbon aerogel
  • Carbon nanostructure
  • Nitrogen
  • Polymer aerogel
  • TG/DTA–MS

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

Cite this

Preparation and characterization of a nitrogen-doped mesoporous carbon aerogel and its polymer precursor. / Bakos, László Péter; Mensah, Joshua; László, K.; Igricz, Tamás; Szilágyi, Imre Miklós.

In: Journal of Thermal Analysis and Calorimetry, 05.05.2018, p. 1-7.

Research output: Contribution to journalArticle

Bakos, László Péter ; Mensah, Joshua ; László, K. ; Igricz, Tamás ; Szilágyi, Imre Miklós. / Preparation and characterization of a nitrogen-doped mesoporous carbon aerogel and its polymer precursor. In: Journal of Thermal Analysis and Calorimetry. 2018 ; pp. 1-7.
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