Issue 6, 2003

Energetics of nanoparticleoxides: interplay between surface energy and polymorphism

Abstract

Many oxides tend to form different structures (polymorphs) for small particles. High temperature oxide melt solution calorimetry has been used to measure the enthalpy as a function of polymorphism and surface area for oxides of Al, Ti, and Zr. The results confirm crossovers in polymorph stability at the nanoscale. The energies of internal and external surfaces of zeolitic silicas with open framework structures are an order of magnitude smaller than those of oxides of normal density.

Article information

Article type
Review Article
Submitted
25 Jul 2003
Accepted
07 Nov 2003
First published
18 Nov 2003

Geochem. Trans., 2003,4, 34-37

Energetics of nanoparticle oxides: interplay between surface energy and polymorphism

A. Navrotsky, Geochem. Trans., 2003, 4, 34 DOI: 10.1039/B308711E

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