A self-consistent method to determine accessible volume, area and pore size distribution (APSD) of BPL, Norit and AX-21 activated carbon

Herrera, L.; Fan, Chunyan; Nguyen, V.; Do, D.; Horikawa, T.; Nicholson, D.

doi:10.1016/j.carbon.2011.09.004

Access Status

Fulltext not available

Authors

Herrera, L.

Fan, Chunyan

Nguyen, V.

Do, D.

Horikawa, T.

Nicholson, D.

Date

2012

Type

Journal Article

Metadata

Show full item record

Citation

Herrera, L. and Fan, C. and Nguyen, V. and Do, D. and Horikawa, T. and Nicholson, D. 2012. A self-consistent method to determine accessible volume, area and pore size distribution (APSD) of BPL, Norit and AX-21 activated carbon. Carbon. 50 (2): pp. 500-509.

Source Title

Carbon

DOI

10.1016/j.carbon.2011.09.004

ISSN

0008-6223

School

Department of Chemical Engineering

URI

http://hdl.handle.net/20.500.11937/55263

Collection

Curtin Research Publications

Abstract

Accessible volume, geometrical area and accessible pore size distribution are the fundamental structural parameters in the characterization of porous solids. We provide a novel "inverse" procedure, which is based on the mass balance and an MC optimization scheme, to determine these parameters from the analysis of experimental adsorption isotherms for a number of commonly used activated carbons: BPL, AX-21 and Norit. Our results, based on a kernel of model pores generated from GCMC simulations, are compared with, and shown to be different from, the results obtained from the conventional method. We show that the discrepancies arise from an incorrect evaluation of both micropore and mesopore sizes. © 2011 Elsevier Ltd. All rights reserved.