PREPARATION OF MONODISPERSE CARBONACEOUS PARTICLES WITH MICROPOROUS, MESOPOROUS, AND MACROPOROUS STRUCTURES

被引:5
作者
DAER, KM [1 ]
LEVENDIS, YA [1 ]
机构
[1] NORTHEASTERN UNIV,DEPT MECH ENGN,BOSTON,MA 02115
关键词
D O I
10.1002/app.1992.070451201
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Spherical, highly porous synthetic carbon particles have been prepared from formulations of either poly(furfuryl alcohol) or poly(vinyl acetate) mixed with a solvent and poreforming agents. Production was carried out by atomizing these mixtures inside a thermal reactor and drying the resulting aerosol. The size of the collected polymeric particles was controlled by preadjusting the parameters of the atomization process. Fine-tuning of the process resulted in the generation of batches of monosized particles. Subsequent thermal degradation at 600-degrees-C resulted in porous chars with controlled pore-size distributions. Several distinct pore structures were superimposed using this technique with pore widths spanning the region from a few nanometers to a few tens of micrometers. Spherical and equal-sized macropores were also generated with a special technique described herein. All chars were produced in batches of spherical and monodisperse particles, with diameters in the range of 20-150-mu-m. BET surface areas were measured to vary from 1 m2/g to over 150 m2/g prior to any oxidative treatment. Porosities varied from 10 to 80%.
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页码:2061 / 2073
页数:13
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共 45 条
[1]   GENERATION OF MONODISPERSE AEROSOL STANDARDS [J].
BERGLUND, RN ;
LIU, BYH .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1973, 7 (02) :147-153
[2]   BASIC SURFACE OXIDES ON CARBON .1. ADSORPTION OF ACIDS [J].
BOEHM, HP ;
VOLL, M .
CARBON, 1970, 8 (02) :227-&
[3]   ADSORPTION OF NITROGEN BY POROUS AND NONPOROUS CARBONS [J].
CARROTT, PJM ;
ROBERTS, RA ;
SING, KSW .
CARBON, 1987, 25 (01) :59-68
[4]  
DAER K, 1991, THESIS NORTHEASTERN
[5]  
DUBININ MM, 1962, 5TH P CARB C, V1, P81
[6]   GLASSY CARBONS FROM POLY(FURFURYL ALCOHOL) COPOLYMERS - STRUCTURAL STUDIES BY HIGH-RESOLUTION SOLID-STATE NMR TECHNIQUES [J].
ECKERT, H ;
LEVENDIS, YA ;
FLAGAN, RC .
JOURNAL OF PHYSICAL CHEMISTRY, 1988, 92 (17) :5011-5019
[7]   PREPARATION OF MODEL MESOPOROUS CARBONS [J].
EVERETT, DH ;
ROJAS, F .
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1988, 84 :1455-&
[8]   ADSORPTION CAPACITY OF SARAN CARBONS AT HIGH-TEMPERATURES AND UNDER DYNAMIC CONDITIONS [J].
FERNANDEZMORALES, I ;
GUERRERORUIZ, A ;
LOPEZGARZON, FJ ;
RODRIGUEZRAMOS, I ;
MORENOCASTILLA, C .
CARBON, 1984, 22 (03) :301-304
[9]  
FISHBACH DB, 1983, CARBON, V21, P429
[10]   EFFECT OF CROSSLINKING ON FORMATION OF GLASSLIKE CARBONS FROM THERMOSETTING RESINS [J].
FITZER, E ;
SCHAFER, W .
CARBON, 1970, 8 (03) :353-&