Preparation of activated carbon fibres from acrylic textile fibres

Carrott, P.J.M.; Nabais, J.M. Valente; Carrott, M.M.L. Ribeiro; Pajares, J.A.

doi:10.1016/s0008-6223(00)00271-2

Cited by 168 publications

(90 citation statements)

References 49 publications

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“…The common methods used to produce ACF from a carbon fiber (CF) are not far from those used for AC production. The process can be simply described as a thermal treatment in an oxidant atmosphere at temperatures between 700 and 1000 °C (3,4,7) . The ACF are highly quoted for adsorbent use, but it is very brittle and does not have enough mechanical resistance to be applied in normally used textile process.…”

Section: Introductionmentioning

confidence: 99%

Microporus activated carbon fiber felt from Brazilian textile PAN fiber: preparation, characterization and application as super capacitor electrode

Marcuzzo¹,

Cuña²,

Tancredi³

et al. 2016

RBAV

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Activated carbon fibers (ACF) are known as excellent adsorbent materials due to their fast adsorption rate and easy handling characteristic. The ACF can be manufactured from the polyacrylonitrile fiber, based on an usual carbon fibers (CF) production process accomplished by an additional activation process. The aim of the present work is to describe the production, chemical/morphological characterization and application potentiality of activated carbon fiber felt (ACFF) produced from textile PAN fiber, using a set of homemade equipment. The 5.0 dtex PAN fiber tow with 200 thousand filaments was oxidized and used as raw material for felt production. The oxidized PAN fiber felt (OPFF) was displaced in a special sample holder, carbonized (900 °C) and then activated in CO 2 atmosphere at 1000 °C in an electric tubular furnace. All steps of the process were performed as fast as possible, and characterization was done by 77 K N 2 isotherms, adsorption isotherms in liquid phase, scanning electronic microscope, X-ray diffraction and surface chemistry by Bhoem methodology. The results confirmed the production of essentially microporous (pore < 3.2 nm, centered on 1.2 nm) and 1,300 m 2 g -1 surface area. The ACFF produced have demonstrated a strong potential application as electrode supercapacitor.

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Section: Introductionmentioning

confidence: 99%

Microporus activated carbon fiber felt from Brazilian textile PAN fiber: preparation, characterization and application as super capacitor electrode

Marcuzzo¹,

Cuña²,

Tancredi³

et al. 2016

RBAV

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“…The burn-off values for samples 850-220, 880-140, 910-100, and 950-60 were all almost equal, reaching a maximum of almost 95%. Volatile matter emitted when the carbon source is subject to attacks from the activator (water steam) is more easily released from the carbon matrix with the augment of activation temperature from 850 to 950 °C (Carrott et al 2001). Figure 2 describes the typical N2-adsorption/desorption isotherms for PLWACF.…”

Section: Resultsmentioning

confidence: 99%

“…During the gas activation process, the activation temperature greatly affects the gasification rate, and this influences the porosity development in ACF (Rodrıǵuez-Reinoso et al 2000). Generally, an increase in the activation temperature produces a larger specific surface area and enhances the total pore volume (Carrott et al 2001;Park and Kim 2001). For example, by carbonization and water steam activation, the Brunauer-Emmett-Teller (BET) specific surface area (SBET) and total pore volume (Vt) of phenolic resin-based ACFs were increased from 628 to 1740 m 2 g -1 and 0.346 to 0.937 cm 3 g -1 , respectively, with an increase in activation temperature from 750 to 900 °C at an activation time of 30 min.…”

Section: Introductionmentioning

confidence: 99%

Porosity Evolution of Activated Carbon Fiber Prepared from Liquefied Wood. Part II: Water Steam Activation from 850 to 950 °C

Jin¹,

Zhao²

2014

BioResources

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To acquire activated carbon fiber from phenol-liquefied wood (PLWACF) with better developed pore structure and a high proportion of mesoporosity, the porosity evolution of PLWACF activated at temperatures from 850 to 950 °C by water steam was detected by the physical adsorption of N2 at -196 °C. Results showed that the pore structure was well developed by prolonging the activation time at 850 to 910 °C, and it was easy to obtain PLWACF having exceptionally high surface area (larger than 2560 m 2 g -1 ). However, PLWACF with a specific surface area larger than 3000 m 2 g -1 could only be obtained in the late activation stages from 850 to 880 °C. Using this activation process, the mesoporosity was remarkably developed. The mesopore proportion drastically increased with an increase in activation temperature or time, reaching a maximum of 49.5%. The pore size distribution widened as the activation time increased and appeared to accelerate with the use of a higher activation temperature. The mesopore size distribution was enlarged from 2.8 to 5.8 nm.

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“…Among other N-containing precursors investigated, studies involving commercial acrylic textile fibers, obtained by polymerization from acrylonitrile (∼90 wt%) and vinyl acetate (∼10 wt%) monomers, and physical activation with CO 2 [67,[97][98][99] showed that these fibers could be used to produce activated carbon fibers with properties which compared favorably with those derived from nontextile PAN, Kevlar and Nomex. Microstructural characteristics of the product were found to depend on the precise nature of the precursor and the conditions involved in both stages of the activation process.…”

Section: Development Of Activated Carbon Cloths: Effect Of the Precurmentioning

confidence: 99%

Development and Environmental Applications of Activated Carbon Cloths

Cukierman

2013

ISRN Chemical Engineering

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Activated carbon cloths have received growing attention because they offer comparative advantages over the traditional powdered or granular forms of this well-known adsorbent, providing further potential uses for technological innovations in several fields. The present article provides an overview of research studies and advances concerned with the development of activated carbon cloths and their use as adsorbent in environmental applications, mostly reported in the last years. The influence of some fabrics and textile wastes used as precursors, and of main activation process variables on the development and physicochemical, mechanical and/or electrical properties of the resulting activated carbon cloths are first reviewed. Then, investigations dealing with the removal of water and air pollutants by adsorption onto activated carbon cloths, including advances toward optimizing their regeneration after organic vapors saturation, are presented.

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Preparation of activated carbon fibres from acrylic textile fibres

Cited by 168 publications

References 49 publications

Microporus activated carbon fiber felt from Brazilian textile PAN fiber: preparation, characterization and application as super capacitor electrode

Microporus activated carbon fiber felt from Brazilian textile PAN fiber: preparation, characterization and application as super capacitor electrode

Porosity Evolution of Activated Carbon Fiber Prepared from Liquefied Wood. Part II: Water Steam Activation from 850 to 950 °C

Development and Environmental Applications of Activated Carbon Cloths

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