Effect of Physical/Chemical Activation on the Porosity Evolution of Porous Carbons

물리화학적 활성법이 다공성 탄소의 기공발현에 미치는 영향

  • Park, Yun-Heum (Department of Textile Engineering, Sungkyunkwan University) ;
  • Park, Chong-Rae (Department of Textile Engineering, Sungkyunkwan University) ;
  • Park, Chong-Rae (School of Materials Science and Engineering, Seoul National University) ;
  • Oh, Gyu-Hwan (School of Materials Science and Engineering, Seoul National University)
  • Published : 2001.10.01

Abstract

Porous carbons have beef used as adsorbents, filters, catalyst supports, etc. due to well-development pore structure. Porous carbons can be prepared by two different activation processes i.e. physical activation by steam or CO$_2$, and chemical activation by KOH, H$_3$PO$_4$ etc. from various raw material. Recently, agricultural wastes such as rice hulls [1], coconut shell [2-31 and straws [4] are growing interest as precursors fur porous carbons due to its easy availability and cheapness. (omitted)

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