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Title: Micropore size distribution of activated carbon fiber using the density functional theory and other methods

Abstract

The pore-size distribution of a series of pitch-based activated carbon fiber samples (A5, A10, A15, and A20) has been determined from the nitrogen adsorption isotherms at 77 K, with the nonlocal density functional theory (DFT), the Dubinin-Stoeckli (DS) method, and the subtracting pore effect (SPE) method using the high-resolution {alpha}{sub s} plot. The pore-size distributions of all the samples from DFT show a distinguishable peak at small pore widths around 0.6 nm and a broad peak at bigger micropore size. The mean pore widths obtained from DFT and DS methods are similar for samples whose pores are narrow and different for wider ones. The use of the SPE method shows that the mean pore widths are slightly smaller than those obtained by DFT and DS methods.

Authors:
; ;
Publication Date:
Research Org.:
Chiba Univ., Inage (JP)
OSTI Identifier:
20075543
Resource Type:
Journal Article
Journal Name:
Langmuir
Additional Journal Information:
Journal Volume: 16; Journal Issue: 9; Other Information: PBD: 2 May 2000; Journal ID: ISSN 0743-7463
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; ACTIVATED CARBON; CARBON FIBERS; PORE STRUCTURE; WASTE MANAGEMENT; CATALYSIS

Citation Formats

El-Merraoui, Mustapha, Aoshima, Masayuki, and Kaneko, Katsumi. Micropore size distribution of activated carbon fiber using the density functional theory and other methods. United States: N. p., 2000. Web. doi:10.1021/la991242j.
El-Merraoui, Mustapha, Aoshima, Masayuki, & Kaneko, Katsumi. Micropore size distribution of activated carbon fiber using the density functional theory and other methods. United States. doi:10.1021/la991242j.
El-Merraoui, Mustapha, Aoshima, Masayuki, and Kaneko, Katsumi. Tue . "Micropore size distribution of activated carbon fiber using the density functional theory and other methods". United States. doi:10.1021/la991242j.
@article{osti_20075543,
title = {Micropore size distribution of activated carbon fiber using the density functional theory and other methods},
author = {El-Merraoui, Mustapha and Aoshima, Masayuki and Kaneko, Katsumi},
abstractNote = {The pore-size distribution of a series of pitch-based activated carbon fiber samples (A5, A10, A15, and A20) has been determined from the nitrogen adsorption isotherms at 77 K, with the nonlocal density functional theory (DFT), the Dubinin-Stoeckli (DS) method, and the subtracting pore effect (SPE) method using the high-resolution {alpha}{sub s} plot. The pore-size distributions of all the samples from DFT show a distinguishable peak at small pore widths around 0.6 nm and a broad peak at bigger micropore size. The mean pore widths obtained from DFT and DS methods are similar for samples whose pores are narrow and different for wider ones. The use of the SPE method shows that the mean pore widths are slightly smaller than those obtained by DFT and DS methods.},
doi = {10.1021/la991242j},
journal = {Langmuir},
issn = {0743-7463},
number = 9,
volume = 16,
place = {United States},
year = {2000},
month = {5}
}