Preparation of activated carbon cloths from viscous rayon Part III.: Effect of carbonization on CO2 activation

被引：41

作者：

Rodríguez-Reinoso, F ^{[1
]}

Pastor, AC ^{[1
]}

Marsh, H ^{[1
]}

Huidobro, A ^{[1
]}

机构：

[1] Univ Alicante, Dept Quim Inorgan, E-03080 Alicante, Spain

来源：

CARBON | 2000年 / 38卷 / 03期

关键词：

carbon cloth; activation; adsorption; thermal analysis (DTA and TGA); microporosity;

D O I：

10.1016/S0008-6223(99)00119-0

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Viscous rayon cloth was carbonized under different experimental conditions The final temperature was 850 degrees C, using heating rates of 0.5, 1, 3 and 5 degrees C min(-1); an additional char was obtained at 5 degrees C min(-1) but introducing an isothermal stage at 230 degrees C a temperature near the pyrolytic decomposition of the precursor. A sixth char was prepared by treating the precursor in air at 230 degrees C for 2.7 h before carbonization at 5 degrees C min(-1) up to 850 degrees C. All chars were activated under a flow of carbon dioxide at 825 degrees C. The effect of carbonization conditions on the porosity, mechanical strength and oxygen surface groups of resultant activated carbon cloth is analyzed, in order to optimize the properties of the final product. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：397 / 406

页数：10

共 21 条

[1] EFFECT OF THE ACTIVATING GAS ON TENSILE-STRENGTH AND PORE STRUCTURE OF PITCH-BASED CARBON-FIBERS [J].

ALCANIZMONGE, J ;

CAZORLAAMOROS, D ;

LINARESSOLANO, A ;

YOSHIDA, S ;

OYA, A .

CARBON, 1994, 32 (07) :1277-1283

[2] Adsorption of gases in multimolecular layers [J].

Brunauer, S ;

Emmett, PH ;

Teller, E .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1938, 60 :309-319

[3] THE SIGNIFICANCE OF HEATING RATE ON CHAR YIELD AND CHAR PROPERTIES IN THE PYROLYSIS OF CELLULOSE [J].

BRUNNER, PH ;

ROBERTS, PV .

CARBON, 1980, 18 (03) :217-224

[4] THE RELATIONSHIP BETWEEN SPECIFIC REACTIVITY AND THE PORE STRUCTURE OF COAL CHARS DURING GASIFICATION [J].

DEKORANYI, A .

CARBON, 1989, 27 (01) :55-61

[5] ASSESSMENT OF THE SURFACE-AREA AND MICROPOROSITY OF ACTIVATED CHARCOALS FROM IMMERSION CALORIMETRY AND NITROGEN ADSORPTION DATA [J].

DENOYEL, R ;

FERNANDEZCOLINAS, J ;

GRILLET, Y ;

ROUQUEROL, J .

LANGMUIR, 1993, 9 (02) :515-518

[6]

DUBININ MM, 1947, ZH FIZ KHIM+, V21, P1351

[7]

Economy J., 1973, US patent, Patent No. 3769144

[8] USE OF N2 VS CO2 IN THE CHARACTERIZATION OF ACTIVATED CARBONS [J].

GARRIDO, J ;

LINARESSOLANO, A ;

MARTINMARTINEZ, JM ;

MOLINASABIO, M ;

RODRIGUEZREINOSO, F ;

TORREGROSA, R .

LANGMUIR, 1987, 3 (01) :76-81

[9] CORRELATION BETWEEN SURFACE-AREAS AND MICROPORE VOLUMES OF ACTIVATED CARBONS OBTAINED FROM PHYSICAL ADSORPTION AND IMMERSION CALORIMETRY [J].

GONZALEZ, MT ;

SEPULVEDAESCRIBANO, A ;

MOLINASABIO, M ;

RODRIGUEZREINOSO, F .

LANGMUIR, 1995, 11 (06) :2151-2155

[10] Effect of steam and carbon dioxide activation in the micropore size distribution of activated carbon [J].

MolinaSabio, M ;

Gonzalez, MT ;

RodriguezReinoso, F ;

SepulvedaEscribano, A .

CARBON, 1996, 34 (04) :505-509

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