Pore structure analysis of activated carbon fiber by microdomain-based model

Nanako Shiratori; Kyung Jin Lee; Jin Miyawaki; Seong Hwa Hong; Isao Mochida; Bai An; Kiyoshi Yokogawa; Jyongsik Jang; Seong Ho Yoon

doi:10.1021/la9000347

Pore structure analysis of activated carbon fiber by microdomain-based model

Nanako Shiratori, Kyung Jin Lee, Jin Miyawaki, Seong Hwa Hong, Isao Mochida, Bai An, Kiyoshi Yokogawa, Jyongsik Jang, Seong Ho Yoon

Department of Advanced Device Materials

Research output: Contribution to journal › Article › peer-review

64 Citations (Scopus)

Abstract

The pore structures of commercial pitch and PAN-based activated carbon fibers (ACFs) were investigated. The pore size and pore size distribution of pitch-based ACFs were measured by nitrogen adsorption isotherms and ¹²⁹Xe NMR spectroscopy and compared with each other. Scanning tunneling microscopy showed that the ACFs were composed of spherical microdomain units the size of a few nanometers. The activation mechanism of ACFs was considered and explained by novel hypothesis; the concept of microdomain structure of ACFs was considered and explained to overcome limitation of the conventional fractal hypothesis. Whereas micropores were generated on each microdomain, the origin of mesopores was interdomain pores, resulting from the microdomain hypothesis.

Original language	English
Pages (from-to)	7631-7637
Number of pages	7
Journal	Langmuir
Volume	25
Issue number	13
DOIs	https://doi.org/10.1021/la9000347
Publication status	Published - Jul 7 2009

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Surfaces and Interfaces
Spectroscopy
Electrochemistry

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10.1021/la9000347

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title = "Pore structure analysis of activated carbon fiber by microdomain-based model",

abstract = "The pore structures of commercial pitch and PAN-based activated carbon fibers (ACFs) were investigated. The pore size and pore size distribution of pitch-based ACFs were measured by nitrogen adsorption isotherms and 129Xe NMR spectroscopy and compared with each other. Scanning tunneling microscopy showed that the ACFs were composed of spherical microdomain units the size of a few nanometers. The activation mechanism of ACFs was considered and explained by novel hypothesis; the concept of microdomain structure of ACFs was considered and explained to overcome limitation of the conventional fractal hypothesis. Whereas micropores were generated on each microdomain, the origin of mesopores was interdomain pores, resulting from the microdomain hypothesis.",

author = "Nanako Shiratori and Lee, {Kyung Jin} and Jin Miyawaki and Hong, {Seong Hwa} and Isao Mochida and Bai An and Kiyoshi Yokogawa and Jyongsik Jang and Yoon, {Seong Ho}",

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T1 - Pore structure analysis of activated carbon fiber by microdomain-based model

AU - Shiratori, Nanako

AU - Lee, Kyung Jin

AU - Miyawaki, Jin

AU - Hong, Seong Hwa

AU - Mochida, Isao

AU - An, Bai

AU - Yokogawa, Kiyoshi

AU - Jang, Jyongsik

AU - Yoon, Seong Ho

PY - 2009/7/7

Y1 - 2009/7/7

N2 - The pore structures of commercial pitch and PAN-based activated carbon fibers (ACFs) were investigated. The pore size and pore size distribution of pitch-based ACFs were measured by nitrogen adsorption isotherms and 129Xe NMR spectroscopy and compared with each other. Scanning tunneling microscopy showed that the ACFs were composed of spherical microdomain units the size of a few nanometers. The activation mechanism of ACFs was considered and explained by novel hypothesis; the concept of microdomain structure of ACFs was considered and explained to overcome limitation of the conventional fractal hypothesis. Whereas micropores were generated on each microdomain, the origin of mesopores was interdomain pores, resulting from the microdomain hypothesis.

AB - The pore structures of commercial pitch and PAN-based activated carbon fibers (ACFs) were investigated. The pore size and pore size distribution of pitch-based ACFs were measured by nitrogen adsorption isotherms and 129Xe NMR spectroscopy and compared with each other. Scanning tunneling microscopy showed that the ACFs were composed of spherical microdomain units the size of a few nanometers. The activation mechanism of ACFs was considered and explained by novel hypothesis; the concept of microdomain structure of ACFs was considered and explained to overcome limitation of the conventional fractal hypothesis. Whereas micropores were generated on each microdomain, the origin of mesopores was interdomain pores, resulting from the microdomain hypothesis.

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Pore structure analysis of activated carbon fiber by microdomain-based model

Abstract

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