Size-driven structural and thermodynamic complexity in iron oxides

A Navrotsky, L Mazeina, J Majzlan - Science, 2008 - science.org
Iron oxides occur ubiquitously in environmental, geological, planetary, and technological
settings. They exist in a rich variety of structures and hydration states. They are commonly …

Naturally occurring iron oxide nanoparticles: morphology, surface chemistry and environmental stability

H Guo, AS Barnard - Journal of Materials Chemistry A, 2013 - pubs.rsc.org
The widespread nanostructures of iron oxides and oxyhydroxides are important reagents in
many biogeochemical processes in many parts of our planet and ecosystem. Their functions …

Thermodynamics of high entropy oxides

SJ McCormack, A Navrotsky - Acta Materialia, 2021 - Elsevier
With the hype of “high entropy” alloys and more recently,“high entropy” ceramics and “high
entropy” oxides (HEOs), there has been a great push to investigate and characterize …

Selective formation of metastable polymorphs in solid-state synthesis

Y Zeng, NJ Szymanski, T He, KJ Jun, LC Gallington… - Science …, 2024 - science.org
Metastable polymorphs often result from the interplay between thermodynamics and
kinetics. Despite advances in predictive synthesis for solution-based techniques, there …

Thermochemical evidence for strong iodine chemisorption by ZIF-8

JT Hughes, DF Sava, TM Nenoff… - Journal of the American …, 2013 - ACS Publications
For the first time, using aqueous solution calorimetry, we clearly identify the chemisorption of
an unusually strong iodine charge-transfer (CT) complex within the cages of a metal …

monoclinic zirconia, its surface sites and their interaction with carbon monoxide

S Kouva, K Honkala, L Lefferts… - Catalysis science & …, 2015 - pubs.rsc.org
This review concerns monoclinic zirconia, its surface sites and their probing with carbon
monoxide. The modifications of the surface sites using thermal treatments with vacuum or …

Nanoscale effects on thermodynamics and phase equilibria in oxide systems

A Navrotsky - ChemPhysChem, 2011 - Wiley Online Library
Because different solid materials (phases) have different surface energies, equilibria among
them will be significantly affected by particle size. This Minireview summarizes experimental …

Hierarchically assembled porous ZnO nanoparticles: synthesis, surface energy, and photocatalytic activity

F Xu, P Zhang, A Navrotsky, ZY Yuan, TZ Ren… - Chemistry of …, 2007 - ACS Publications
We show an effective experimental method to prepare hierarchically porous zinc oxide
(ZnO) spherical nanoparticles through a self-assembly pathway using surface-modified …

Amorphous alumina nanoparticles: structure, surface energy, and thermodynamic phase stability

AH Tavakoli, PS Maram, SJ Widgeon… - The Journal of …, 2013 - ACS Publications
To provide a complete picture of the energy landscape of Al2O3 at the nanoscale, we
directed this study toward understanding the energetics of amorphous alumina (a-Al2O3). a …

Direct calorimetric measurement of enthalpy of adsorption of carbon dioxide on CD-MOF-2, a green metal–organic framework

D Wu, JJ Gassensmith, D Gouvêa… - Journal of the …, 2013 - ACS Publications
The enthalpy of adsorption of CO2 on an environmentally friendly metal–organic framework,
CD-MOF-2, has been determined directly for the first time using adsorption calorimetry at 25° …