Pyrolysis of sulfonic acid substituted benzenes and investigation of CO2 capture capability of resulting carbons

ZAMAN A. C.

JOURNAL OF SOLID STATE CHEMISTRY, cilt.303, 2021 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 303
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1016/j.jssc.2021.122546
  • Dergi Adı: JOURNAL OF SOLID STATE CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Chemical Abstracts Core, Chimica, Compendex, INSPEC, Metadex
  • Anahtar Kelimeler: CO2 capture, Sulfur doped carbon, Ultramicroporous, Substituted benzene, Molecular precursor, METAL-ORGANIC FRAMEWORKS, ACTIVATED CARBON, MESOPOROUS CARBON, DOPED CARBONS, PORE-SIZE, MICROPOROUS CARBONS, SURFACE-CHEMISTRY, AMORPHOUS-CARBON, DIOXIDE CAPTURE, ISOSTERIC HEATS
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

Aromatic organic compounds: 5-sulfosalicylic acid (SSA) and p-toluenesulfonic acid (TsOH) were used to prepare sulfur doped ultramicropore (pores smaller than 0.7 nm) containing carbons by pyrolysis under Argon atmosphere. SSA derived carbon processed at 1000 degrees C showed the best CO2 (carbon dioxide) adsorption performance. CO2 sorption capacity of SSA1000 is 3.91 mmol g(-1)at 1 bar at 273 K and 2.88 mmol g(-1)at 1 bar at 298 K. Remarkably, at typical flue gas conditions (0.15 bar@298 K) SSA1000 takes up 0.95 mmol g(-1) CO2. SSA1000 possessed good gas sorption properties, recyclability for regeneration, and Ideal Adsorbed Solution Theory (IAST)based selectivity of 14.7 (1 bar, CO2/N-2:0.15/0.85). This work shows the possibility of production of ultramicropore containing sulfur and oxygen doped carbons exhibiting high CO2 uptake capability via simple pyrolysis method from molecular precursors.