Please use this identifier to cite or link to this item:

Title: Evolution of porosity of activated carbon fibres prepared from pre-oxidized acrylic fibres
Authors: Carrott, P.J.M.
Ribeiro Carrott, M.M.L.
Correia, P.F.M.M.
Keywords: carbon
Issue Date: 2018
Publisher: Elsevier
Citation: Evolution of porosity of activated carbon fibres prepared from pre-oxidized acrylic fibres, P.J.M. Carrott, M.M.L. Ribeiro Carrott & P.F.M.M. Correia, Microporous and Mesoporous Materials, 264 (2018) 176-180
Abstract: Industrially pre-oxidized acrylic fibres were used to prepare activated carbon fibres (ACF). The results obtained show that pre-oxidation was effective in increasing the carbon yield during carbonization and reducing the reactivity of the char with CO2 during activation, making it possible to obtain ACF with high pore volumes, up to 1.15 cm3 g−1, with BET area of 2064m2 g−1, even without a prior laboratory stabilization step. By controlling the activation temperature over the range 700–1000 °C and the activation time over the range 15–4320 min it was possible to obtain a range of materials varying from those which contained mainly ultramicropores, with a high capacity for the capture of CO2, up to others with a broader distribution of pore sizes extending up to 4 nm. An interesting aspect of the results was the observation that the volume of ultramicropores was practically constant for different activation times and temperatures up to 900°C. The importance of different processes which may contribute towards the development of porosity during activation is considered in the light of the results obtained.
Type: article
Appears in Collections:CQE - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica

Files in This Item:

File Description SizeFormat
153_MMM_264_2018_176_Evolution_of_porosity_of_activated_carbon_fibres_prepared_from_preoxidized_acrylic_fibres.pdf427.57 kBAdobe PDFView/OpenRestrict Access. You can Request a copy!
FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpaceOrkut
Formato BibTex mendeley Endnote Logotipo do DeGóis 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.


Dspace Dspace
DSpace Software, version 1.6.2 Copyright © 2002-2008 MIT and Hewlett-Packard - Feedback
UEvora B-On Curriculum DeGois