Chemical and structural optimization of ZnCl2 activated carbons via high temperature CO2 treatment for EDLC applications


KÖSE K. Ö., Piskin B., AYDINOL M. K.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, cilt.43, sa.40, ss.18607-18616, 2018 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 43 Sayı: 40
  • Basım Tarihi: 2018
  • Doi Numarası: 10.1016/j.ijhydene.2018.03.222
  • Dergi Adı: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.18607-18616
  • Anahtar Kelimeler: Biomass based materials, Activated carbon, Chemical activation, EDLC, Porosity characterization, ZINC-CHLORIDE ACTIVATION, DOUBLE-LAYER CAPACITORS, HIGH-ENERGY-DENSITY, POROUS CARBONS, SURFACE-AREA, PINE-CONE, PHYSICAL ACTIVATION, SUBNANOMETER PORES, MESOPOROUS CARBONS, FUNCTIONAL-GROUPS
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

Development of biomass based activated carbon materials for electrical double layer capacitor (EDLC) usage has gained attention as a result of requesting efficient and low cost energy storage device production. In this study, pine cone based activated carbons were produced with a combined chemical and physical activation route. ZnCl2 and CO2 were used for chemical and physical activation of the material, respectively. Activation parameters are adjusted to give different chemical and textural characteristics. FTIR and Raman spectroscopies were used for functional group identification and structural order characterization, respectively. As a result, efficient active materials for EDLC usage were obtained, with as high as 87 F/g specific capacitance in organic electrolytes. (C) 2018 Hydrogen Energy Publications LLC, Published by Elsevier Ltd. All rights reserved.