Abstract
A detailed examination of low temperature gas adsorption indicates differences in the mode of dispersion of manganese oxide on alumina from dispersion on silica. This difference is further reflected by the variation on B.E.T. C values within the two series of samples. Calculations also reveal that physical structure influences the C value, particularly so in the region where the monolayer is being formed, and in the region of capillary condensation. The fraction of surface covered (θ) during the adsorption process has been calculated and compared with results obtained on non-porous materials.
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