Work

Energetics of nanoparticle oxides: interplay between surface energy and polymorphism†

Year: 2003

Type: article

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.

Source: Geochemical Transactions

DOI: 10.1186/1467-4866-4-34

Author: Alexandra Navrotsky

Institution: University of California, Davis

Language: English

Topic: Chemical Thermodynamics and Molecular Structure

Subfield: Organic Chemistry

Field: Chemistry

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,690

Funders: National Science Foundation, U.S. Department of Energy