Exploration of porosity measurement techniques of a porous metal oxide sample.

Nanoporous materials, such as in porous metal oxides, have shown great potential in industrial applications due to with their unique electrical, magnetic and optical properties. Hence, it is of significant importance to determine the morphology of such materials using effective methods. Presently, there exist multiple methodologies to determine the porosity of porous media but a proper analysis of the difference in results obtained through different methods is not well characterized in existing literature.The present work explores the diverse characterizations and study of the nature of porosity and their potential application. It aims to bridge this gap by analysing and comparing the results obtained for a porous metal oxide sample of pure and potassium doped MgFe2O4. The porosity of the samples was experimentally determined by imbibition methods utilising boiling water and water at room temperature as the immersion fluids with experimental procedure outlined. The crystal structure, lattice parameters, unit cell volume, theoretical density and porosity were estimated from powder X-ray density analysis.