Generalization of the theory of volume filling of micropores to nonhomogeneous microporous structures

Modelling of water adsorption by activated carbons: effects of microporous structure and oxygen content

“…In a second stage, overall isotherms were calculated, using the same PSDs as previously [8], which shows the influence of the oxygen content on water adsorption. It was also established, that the overall isotherms fulfil the requirement for temperature invariance and consequently that modelling is in agreement with Dubinin's theory [14][15][16][17], as found experimentally [18][19][20]. Finally, adsorption isotherms were calculated for real carbons, of known PSDs and oxygen contents.…”

The comparison of experimental and calculated pore size distributions of activated carbons

“…also been shown by Stoeckli [32] that CO and CH lead 2 and discussed in detail by Carrot [22,39], the surface. This means that CO is a suitable candidate for It will be shown that in the absence of gate effects the results from the integral transform different techniques lead to a good agreement, even on theb asis of activated carbons considered as a collection of slit-shaped micropores.…”

“…These observations justify, to some 3 21 volume can be as high as 0.6-0.8 cm g . extent, the description of microporous carbons as a collecFollowing the pioneering work of Dubinin [1][2][3], mition of locally slit-shaped micropores, with variable croporosity in activated carbons has been investigated by a widths. Such pores can be modelled in a relatively simple variety of direct and indirect techniques such as vapour fashion and used in advanced computer simulations leadadsorption [4,5], immersion calorimetry [4][5][6], small-angle ing to model isotherms of simple molecules [21][22][23][24][25][26][27][28][29][30][31], scattering of X-rays (SAXS) [7,8], high resolution transrelevant to the present study.…”

“…In the case of gram (CERIUS-2, from Molecular Simulations Ltd.) with a CO , the molecules being rod-shaped, the simulations will 2 Silicon Graphics workstation. The main characteristic of lead to a larger volume than in reality.…”

“…In the present study we considered four activated gs gs (see Table 1), were obtained from the experimental CO carbons of different origins (CM, CAF-B, AGB, U-103) 2 isotherms on carbon blacks Vulcan 3-G at 273 K, the one activated fiber (KF-1500) and two microporous carbon quadrupole interactions are effectively taken into account blacks (XC-72, XC-72-16). Samples CM and U-103 are .…”