Study on Pan-Based Activated Carbon Fiber Prepared by Different Activation Methods

Author

Li, Quanming ; Zhang, Wanxi

Author_Institution

Dept. of Mater. Sci. & Eng., Jilin Univ., Changchun

fYear

2009

fDate

27-31 March 2009

Firstpage

1

Lastpage

4

Abstract

Activated carbon fibers (ACF) were prepared from polyacrylonitrile (PAN) precursor fibers by two methods: KOH activation at 400 -1000 degC and H₃PO₄ activation at 600-1400 V. H₃PO₄ activation yielded relatively poorly developed porosity regardless of the activation temperature, maintaining a low surface area (around 1000 m²g´) at very high burn-off while KOH activation provided high porosities above 650degC. The microstructures of samples were studied by means of nitrogen adsorption. The nitrogen isotherms were analyzed in detail using the routine BET method, characterize the pore size distribution by DFT (theory of density function).

Keywords

adsorption; carbon fibres; materials preparation; porosity; porous materials; C; H₃PO₄ activation; KOH activation; PAN-based activated carbon fiber; nitrogen adsorption; polyacrylonitrile precursor fibers; pore size distribution; temperature 400 degC to 1400 degC; theory of density function; Cities and towns; Density functional theory; Inductors; Materials science and technology; Microstructure; Nitrogen; Optical fiber testing; Slurries; Temperature; Valves;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Engineering Conference, 2009. APPEEC 2009. Asia-Pacific

Conference_Location

Wuhan

Print_ISBN

978-1-4244-2486-3

Electronic_ISBN

978-1-4244-2487-0

Type

conf

DOI

10.1109/APPEEC.2009.4918829

Filename

4918829