Pore-filling ratio

The pore-filling ratio 0 [%] was estimated using the following equation ... 

Fig. 16.3 The relationship between the pore-filling ratio and the membrane performances (a) methanol permeability through the membrane at 50°C, (b) the proton conductivity through the membrane at 25 °C in the humid state...

In our view, an oversimplified application of fractal analysis may tend to obscure rather than clarify the interpretation of adsorption data. In practice, there are two complicating factors (1) the derived values of nm are not always reliable, and (2) the mechanisms of adsorption and pore filling are dependent on the adsorbent-adsorbate interactions and the ratio of pore width to molecular diameter and may not be the same for all the members of a series of adsorptives on a given adsorbent. 

Nickel-mesoporous silicon structures are of considerable industrial interest for various applications. Anisotropy of magnetic properties of the nickel nanowires inside porous silicon conditioned by their high aspect ratio is applicable for the magnetic store production [1], Moreover, these structures offer much promise for the rectenna (a special type of antenna that is used to directly convert microwave energy into DC electricity) fabrication. So, it is of value to study in detail the process of the nickel electrodeposition into pores of porous silicon and elaborate control methods for pore filling with metal. 

Increased tar or the incidence of viscous oil corresponds (a) to increased nonhydrocarbon content of petroleinn (lower hydrocarbon/nonhydrocarbon ratio), (b) increased high molecular weight organic matter observed in Rock-Eval 6 pyrograms and (c) an increased pore-filling petroleum density (as evidenced by lower predicted API gravity from Rock-Eval 6. 

Obviously, the diffusion of gas in concrete is largely controlled by the degree of pore filling with a liquid phase it relates also to the diffusion of oxygen. The oxygen diffusion in dried or in water saturated concrete corresponds approximately to the rate ratio of oxygen diffusion in the air and in liquid water [75],... 

Fig. 28.1. (a) Longitudinal and transverse Tj relaxation times for water as a function of filling ratio (with permission), (b) Longitudinal relaxation rate of deuterons as a function of pore radius for nitrobenzene-d, at 300 K . 

The influence of capillary condensation upon catalyst effectiveness factor has been assessed both by approximate calculations and by pore network simulations. It was found that catalyst effectiveness could be affected by the presence of capillary condensation, depending on the ratio of reaction rates in the gas and liquid phases. The effectiveness factor under conditions of capillary condensation is sensitive to operating conditions of the reactor, such as pressure, and to properties of the catalyst pore structure like pore-size distribution and connectivity. Once the catalyst pellet contains some pores filled with liquid, the kinetics of the process become dependent upon the phase equilibria of the system. This can lead to multiple steady states in the reaction rate as a function of temperature or pressure, because the current state of the catalyst pellet depends on the history of temperature and pressure profiles to which it has been subjected. 

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