Applied Physics Letters · 2005 · 168 citations · 13 references
Natural SciencesChemistryMaterials SciencePhysical ChemistrySurface ChemistrySurface ScienceAdsorption At InterfacesAdsorption ProcessesCalorimetrySurface AdsorptionSurface PhysicsSurface ThermodynamicsAdsorption On Oxide SurfacesAdsorption ThermodynamicsEnthalpyEnthalpy Of AdsorptionSolution CalorimetrySurface Adsorption ThermodynamicsSurface AreaSurface Enthalpy
A commercial surface area analyzer and Calvet-type microcalorimeter were combined for measurements of heats of gas–solid interactions, providing enhanced resolution, flexibility, and throughput compared to conventional methods. Integral adsorption enthalpies for half monolayer coverage on HfO2 and ZrO2 surfaces were found to be in the range −130–190 and −110–170kJ per mole of gaseous H2O for differently prepared monoclinic phases and −70 and −90kJ∕mole for tetragonal phases from precipitation. The surface enthalpy for anhydrous tetragonal ZrO2 was derived as 1.23±0.04J∕m2 from water adsorption and high-temperature solution calorimetry data.
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Surface Energies and Thermodynamic Phase Stability in Nanocrystalline Aluminas
James M. McHale, A. Auroux, A. J. Perrotta et al. · Science · 1997 · 929 citations
Natural Sciences, Materials Engineering, Materials Science +17