Correlation verification of process factors and harmful gas adsorption properties for optimization of physical activation parameters of PAN-based carbon fibers

Yun Jeong Choi, Ji Hong Kim, Ki Bong Lee, Young Seak Lee, Ji Sun Im

Research output: Contribution to journalArticle

Abstract

In this study, the effects of activation parameters in the steam activation of polyacrylonitrile-based carbon fibers on pore formation properties were investigated. The activation temperature was used as a primary parameter, and the activation time was adjusted for each condition to obtain similar levels of activation yields. Based on the activation yield of activated carbon fibers (ACFs), the activation energy was calculated as 142.2 kJ/mole. As a result of BET analysis, it was confirmed that the specific surface area and pore volume of ACFs were improved as the activation temperature was increased. The sample treated at 850̊ during 45 min showed a high specific surface area (1041.9 m2/g) and a pore volume (0.49 cm3/g). This developed pore structures improved the gas adsorption properties of ACFs.

Original languageEnglish
JournalJournal of Industrial and Engineering Chemistry
DOIs
Publication statusPublished - 2019 Jan 1

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Gas adsorption
Carbon fibers
Chemical activation
Activated carbon
Specific surface area
Polyacrylonitriles
Steam
Pore structure
carbon fiber
Activation energy
Temperature

Keywords

  • Activated carbon fiber
  • DMMP
  • Pore structure
  • SO
  • Steam activation

ASJC Scopus subject areas

  • Chemical Engineering(all)

Cite this

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title = "Correlation verification of process factors and harmful gas adsorption properties for optimization of physical activation parameters of PAN-based carbon fibers",
abstract = "In this study, the effects of activation parameters in the steam activation of polyacrylonitrile-based carbon fibers on pore formation properties were investigated. The activation temperature was used as a primary parameter, and the activation time was adjusted for each condition to obtain similar levels of activation yields. Based on the activation yield of activated carbon fibers (ACFs), the activation energy was calculated as 142.2 kJ/mole. As a result of BET analysis, it was confirmed that the specific surface area and pore volume of ACFs were improved as the activation temperature was increased. The sample treated at 850̊ during 45 min showed a high specific surface area (1041.9 m2/g) and a pore volume (0.49 cm3/g). This developed pore structures improved the gas adsorption properties of ACFs.",
keywords = "Activated carbon fiber, DMMP, Pore structure, SO, Steam activation",
author = "Choi, {Yun Jeong} and Kim, {Ji Hong} and Lee, {Ki Bong} and Lee, {Young Seak} and Im, {Ji Sun}",
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language = "English",
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publisher = "Korean Society of Industrial Engineering Chemistry",

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TY - JOUR

T1 - Correlation verification of process factors and harmful gas adsorption properties for optimization of physical activation parameters of PAN-based carbon fibers

AU - Choi, Yun Jeong

AU - Kim, Ji Hong

AU - Lee, Ki Bong

AU - Lee, Young Seak

AU - Im, Ji Sun

PY - 2019/1/1

Y1 - 2019/1/1

N2 - In this study, the effects of activation parameters in the steam activation of polyacrylonitrile-based carbon fibers on pore formation properties were investigated. The activation temperature was used as a primary parameter, and the activation time was adjusted for each condition to obtain similar levels of activation yields. Based on the activation yield of activated carbon fibers (ACFs), the activation energy was calculated as 142.2 kJ/mole. As a result of BET analysis, it was confirmed that the specific surface area and pore volume of ACFs were improved as the activation temperature was increased. The sample treated at 850̊ during 45 min showed a high specific surface area (1041.9 m2/g) and a pore volume (0.49 cm3/g). This developed pore structures improved the gas adsorption properties of ACFs.

AB - In this study, the effects of activation parameters in the steam activation of polyacrylonitrile-based carbon fibers on pore formation properties were investigated. The activation temperature was used as a primary parameter, and the activation time was adjusted for each condition to obtain similar levels of activation yields. Based on the activation yield of activated carbon fibers (ACFs), the activation energy was calculated as 142.2 kJ/mole. As a result of BET analysis, it was confirmed that the specific surface area and pore volume of ACFs were improved as the activation temperature was increased. The sample treated at 850̊ during 45 min showed a high specific surface area (1041.9 m2/g) and a pore volume (0.49 cm3/g). This developed pore structures improved the gas adsorption properties of ACFs.

KW - Activated carbon fiber

KW - DMMP

KW - Pore structure

KW - SO

KW - Steam activation

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