Construction and Building Materials 2021, 269, 121331. Evaluation and comparison of bentonite surface fractal dimension and prediction of swelling deformation: Synchrotron radiation SAXS and N2-adsorption isotherms method. Russian Journal of Inorganic Chemistry 2021, 66 Synthesis of CaCu3Ti4O12: How Heat Treatment Influences Morphology and Dielectric Properties. The influences of composition and pore structure on the adsorption behavior of CH4 and CO2 on shale. Xiangzeng Wang, Junping Zhou, Xiao Sun, Shifeng Tian, Jiren Tang, Feng Shen, Jinqiao Wu.Characteristics of Pore Structure and Gas Content of the Lower Paleozoic Shale from the Upper Yangtze Plate, South China. Xiaoyan Zou, Xianqing Li, Jizhen Zhang, Huantong Li, Man Guo, Pei Zhao.Adsorption Species Distribution and Multicomponent Adsorption Mechanism of SO2, NO, and CO2 on Commercial Adsorbents. Lei Luo, Yangyang Guo, Tingyu Zhu, and Yang Zheng.This article is cited by 24 publications. These observations lead to the physicogeometrical conjunction that, during capillary condensation in cylindrical pores, usually assumed in nitrogen porosimetry, the scaling dimension of pore anisotropy b, scaled in units of radius r, is related to the dimensionality D of the process.
In the present study it is shown that, for pores of cylindrical geometry and at a specific range of pressure where those pores are filled-up during the process of capillary condensation, the local slopes d log V/dloglog or dlog S/d log r, of plots similar to the above, may be used to estimate the pore anisotropy b of the adsorbing space from the relationships log b = − 3] log(0.5 r) or log b = − 2] log(0.5 r). It has been suggested in the past that plots of the form log V = constant − ( D − 3), or its equivalent log S = const − ( D − 2) log r, can be used for the estimation of the dimensionality D of the adsorbing surface from those parts of the slopes at low pressure corresponding to straight lines. The Frenkel−Halsey−Hill (FHH) equation V/ V m ≈ −1/s is revisited in relation to the meaning of its exponent in a specific intermediate range of pressure where capillary condensation occurs.
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