The assessment of pore connectivity in hierarchical zeolites using positron annihilation lifetime spectroscopy: instrumental and morphological aspects

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This work gives a description of the positronium atom inside zeolites where the diffusion along the micropore network, to the mesopores and eventually out of the material is of primary importance to understand many aspects of the positron annihilation spectroscopy measurements. The technique is now being developed for its application to porous materials with industrial applications, mainly for engineering catalytic processes.

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