PAN-based activated carbon fiber composites for sulfur dioxide conversion: Influence of fiber activation method

I. Martín-Gullón, R. Andrews, M. Jagtoyen, F. Derbyshire

Research output: Contribution to journalArticlepeer-review

49 Scopus citations

Abstract

Activated carbon fibers (ACF) were prepared from poly(acrylonitrile) (PAN) precursor fibers by two methods: steam activation at 650-1000 °C and KOH activation at 600-800 °C. Steam activation yielded relatively poorly developed porosity regardless of the activation temperature, maintaining a low surface area (around 700 m2 g-1) at very high burn-off, while KOH activation provided high porosities above 700 °C. However, at ratios of KOH to fiber greater than 1:1 wt/wt, the fiber morphology was destroyed. The SO2 conversion activity of the ACF was studied in the presence of oxygen and water. The activity was higher for as-produced KOH-activated samples (approximately 9 μmol SO2 g-1 min-1) than for steam activated fibers (approximately 4 μmol SO2 g-1 min-1), and correlated with lower oxygen content in the product fibers. The ACF were also used to manufacture composites. Composites retain the catalytic activity of the parent ACF.

Original languageEnglish
Pages (from-to)969-977
Number of pages9
JournalFuel
Volume80
Issue number7
DOIs
StatePublished - May 2001

Bibliographical note

Funding Information:
This work was funded by the Fossil Energy AR&TD materials program (SC19X-SN719C) and by the University of Kentucky — Center for Applied Energy Research. The authors also thank Danny Turner, Craig Fowler and Lucı́a Ballester for their valued help.

ASJC Scopus subject areas

  • Chemical Engineering (all)
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Organic Chemistry

Fingerprint

Dive into the research topics of 'PAN-based activated carbon fiber composites for sulfur dioxide conversion: Influence of fiber activation method'. Together they form a unique fingerprint.

Cite this