Carbon aerogels activation by CO2 using an induction heated fluidized bed reactor

Ahmad Mohaddespour, Saeid Atashrouz, Muhammad Tajammal Munir, Sherif Farag, Khaled Taher Jaradat

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Resorcinol–formaldehyde (RF) aerogels were synthesized by polymerization and, then, were carbonized using a novel induction heated fluidized bed reactor (IHFBR). The obtained carbon aerogels were activated using CO2 while the effects of activation time ξ and CO2 concentration γ on the structural properties of carbon aerogels were examined. It is shown that activation by CO2 can be easily achieved using IHFBR while ξ and γ can affect the final structural properties of carbon aerogels. Large ξ or γ results in the loss of narrow and homogeneous distribution of mesopores while low γ solely changes the micropores superficially. Accordingly, possible mechanisms for changes in the structural properties of carbon aerogels were proposed. Using IHFBR can markedly reduce the activation time (from hours to minutes) by furnishing enhanced heat and mass transfer while facilitating the scale up process.

Original languageEnglish
Article number116123
Pages (from-to)1-10
Number of pages10
JournalChemical Engineering Science
Volume229
DOIs
Publication statusPublished - 16 Jan 2021
Externally publishedYes

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