Ionic mobility
Article Abstract:
The ionic exchange in a lithium chloride methanol-water solution system was measured using an equation based on the Toerell, Meyer, and Sievers theory. Permeability coefficients of the charged membranes were calculated using the charge densities and the cation-to-anion mobility ratios found in previous studies. In addition, the interaction between the ion pairs and the counterion and fixed charge groups were determined. The findings demonstrate that the regulation of ionic mobility in the sample solution was caused by the weight fraction of methanol.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1998
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Highly selective oxygen permeation through a poly(vinylidene dichloride)-cobalt porphyrin membrane: hopping transport of oxygen via the fixed cobalt porphyrin carrier
Article Abstract:
Poly(vinylidene dichloride-co-vinylimidazole) has been complexed with meso-tetrakis-(alpha,alpha,alpha,alpha-omicron-pivalamidophenyl) (porphyrinatocabalt) (CoP) to produce combination membranes with gas barrier properties and selective oxygen-absorbing and carrying properties. A precise analysis of the diffusion coefficient of oxygen hopping via the fixed CoP carrier (Dc) is then carried out. Results show Dc is inversely proportional to the average distance between the CoP carrier sites.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1998
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Modification of potassium-containing zeolites loaded with Mo3S(sub 4)(super 4+) clusters by solid-state reaction between zeolites and KCl
Article Abstract:
Research was conducted to examine the acid characteristics of the zeolites loaded with Mo3S(sub 4)(super 4+) clusters. The clusters were introduced into KY and KL by aqueous ion exchange without destruction of the zeolite structures as verified by the calculations of X-ray diffraction and low-temperature nitrogen adsorption. Results suggest that during the preparation and activation of the samples, a large quantity of acid sites was generated.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1998
User Contributions:
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