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The role of positron annihilation lifetime studies and nuclear sensors for characterising porous materials

Mume, Eskender; Uedono, Akira; Mizunaga, G; Lynch, Daniel E; Smith, Suzanne

Description

A series of nuclear sensors were designed to assess the chemistry within the nanopores of a porous material. The nuclear sensors of varying size, charge, and hydrophobicity were exposed to hollow silica shells (HSS) at varying pH. Uptake and release kinetics were studied over a 24 h period at room temperature. Preliminary study indicate positively charged nuclear sensors were selectively and rapidly (within 10 min) absorbed by the HSS at pH 7 to 9. PALS showed there were two types of pores (1.7...[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Conference paper
URI: http://hdl.handle.net/1885/20976
Source: Journal of Physics: Conference Series
DOI: 10.1088/1742-6596/262/1/012040

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