The Preparation of PAN-based Activated Carbon Fiber by KOH

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J. Korean Ceram. Soc. > Volume 36(6); 1999 > Article

Journal of the Korean Ceramic Society 1999;36(6): 577.

KOH 활성화에 의한 PAN계 활성탄소섬유의 제조

김기원, 정승훈, 임연수¹, 정윤중

명지대학교 세라믹·화학공학부
¹명지대학교 세라믹·화학공학

The Preparation of PAN-based Activated Carbon Fiber by KOH

ABSTRACT

Activated carbon fibers were prepared from stabilized PAN fibers by chemical activation using hydroxide. The variations in specific surface area amount of iodine adsorption micro-structure and pore size distribution in the activated carbon fibers after the activation process were discussed. In the chemical activation using potassium hydroxide specific surface area of about 2545m2/g and amount of iodine adsorption of 2049 mg/g were obtained at the condition of KOH/fiber ratio of 1 and 800$^{circ}C$ Nitrogen adsorption isotherms for PAN based activated carbon fibers showed the type I in the Brunauer-Deming-Deming-Teller classification indicating the micro-pores consisting the activated fibers.

Key words: PAN-based activated carbon fiber, Chemical activation, KOH, Specific surface area, Iodine adsorption, Pore size distribution