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Positronium Decay Study of Pore Sizes in Silica Sol-Gels

  • T. W. Zerda (a1), G. Hoang (a1), B. Miller (a1), C. A. Quarles (a1) and G. Orcel (a2)...

Abstract

Positronium annihilation has been used to measure pore diameters in silica sol-gels. The results have been compared to those obtained from the BET technique. Pore development in the presence of chemical additives and during the thermal treatment has been studied. A model relating positronium lifetime to the pore size has been proposed.

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Positronium Decay Study of Pore Sizes in Silica Sol-Gels

  • T. W. Zerda (a1), G. Hoang (a1), B. Miller (a1), C. A. Quarles (a1) and G. Orcel (a2)...

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