CORRELATION BETWEEN SURFACE-AREAS AND MICROPORE VOLUMES OF ACTIVATED CARBONS OBTAINED FROM PHYSICAL ADSORPTION AND IMMERSION CALORIMETRY

被引:47
作者
GONZALEZ, MT [1 ]
SEPULVEDAESCRIBANO, A [1 ]
MOLINASABIO, M [1 ]
RODRIGUEZREINOSO, F [1 ]
机构
[1] UNIV ALICANTE,DEPT QUIM ORGAN,E-03080 ALACANT,SPAIN
关键词
D O I
10.1021/la00006a050
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The heats of immersion of a series of activated carbons with increasing porosity into a number of liquids with different molecular sizes (benzene, 2,2-dimethylbutane and isooctane) have been measured at 303 K. The experimental values have been used to calculate the corresponding surface areas (using a nonporous carbon (V3G) as reference) and micropore volumes. These parameters have been compared with those obtained from physical adsorption of N-2 at 77 K and of the same hydrocarbons at 298 K: A good correlation has been found between the values obtained from both techniques provided no lack of accessibility of the liquid or vapor to the whole microporous structure of the carbon is present.
引用
收藏
页码:2151 / 2155
页数:5
相关论文
共 16 条
[1]  
BANSAL DC, 1988, ACTIVE CARBON
[2]   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
[3]  
Dubinin M.M., 1975, PROG SURF MEMBR SCI, V9, P1, DOI [10.1016/B978-0-12-571809-7.50006-1, DOI 10.1016/B978-0-12-571809-7.50006-1]
[4]  
FERNANDEZCOLINA.J, 1989, FUNDAMENTALS ADSORPT, P261
[5]   THE EFFECT OF GASIFICATION BY AIR (623 K) OR CO2 (1098 K) IN THE DEVELOPMENT OF MICROPOROSITY IN ACTIVATED CARBONS [J].
GARRIDO, J ;
LINARESSOLANO, A ;
MARTINMARTINEZ, JM ;
MOLINASABIO, M ;
RODRIGUEZREINOSO, F ;
TORREGROSA, R .
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1987, 83 :1081-1088
[6]   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
[7]  
GREGG SJ, 1982, ADSORPTION SURFACE A, P94
[8]   CHARACTERIZATION OF SUPER-ACTIVATED CARBONS [J].
HARRISON, BH ;
BARTON, SS ;
DACEY, JR ;
SELLORS, JR .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1979, 71 (02) :367-374
[9]   PARAMETERS OF MICROPOROUS STRUCTURE OF CARBONACEOUS ADSORBENTS GASIFIED WITH AIR OR CARBON-DIOXIDE [J].
JARONIEC, M ;
CHOMA, J ;
RODRIGUEZREINOSO, F ;
MARTINMARTINEZ, JM ;
MOLINASABIO, M .
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1989, 85 :3125-3134
[10]   CHARACTERIZATION OF THE MICROPOROUS STRUCTURE OF ACTIVATED CARBONS USING IMMERSION CALORIMETRY [J].
RADEKE, KH .
CARBON, 1984, 22 (06) :473-476