Andrew G Stack Group Leader, Geochemistry & Interfacial Sciences Contact stackag@ornl.gov | 865.574.8450 All Publications Reaction Layer Formation on MgO in the Presence of Humidity Armoring of MgO by a Passivation Layer Impedes Direct Air Capture of CO2 The evolution of solvation symmetry and composition in Zn halide aqueous solutions from dilute to extreme concentrations... Predicting Outcomes of Nanoparticle Attachment by Connecting Atomistic, Interfacial, Particle, and Aggregate Scales... The evolution of solvation symmetry and composition in Zn halide aqueous solutions from dilute to extreme concentrations Sorption of Arsenate, Selenate, and Molybdate on the Barite (001) Surface... Assessing an aqueous flow cell designed for in situ crystal growth under X-ray nanotomography and effects of radiolysis products Grain boundary widening controls siderite (FeCO3) replacement of limestone (CaCO3) Solution Structure and Hydration Forces between Mica and Hydrophilic Versus Hydrophobic Surfaces... Sealing fractures to increase underground storage security: Lessons learned from a multiscale multimodal imaging study of a s... Selenite and Selenate Sequestration during Coprecipitation with Barite: Insights from Mineralization Processes of Adsorption, Nucleation, and Growth In Situ Observations of Barium Sulfate Nucleation in Nanopores... Nucleation Rate Theory for Coordination Number: Elucidating Water-Mediated Formation of a Zigzag Na2SO4 Morphology Synergistic Enhancement of Lead and Selenate Uptake at the Barite (001)–Water Interface Structure and reactivity of sodium aluminate complexes in alkaline solutions... Nanopore facilitated monohydrocalcitic amorphous calcium carbonate precipitation... Concentration dependent interfacial chemistry of the NaOH(aq): gibbsite interface Numerical Study of Mineral Nucleation and Growth on a Substrate... The “good,” the “bad,” and the “hidden” in neutron scattering and molecular dynamics of ionic aqueous solutions Improving Rare-Earth Mineral Separation with Insights from Molecular Recognition: Functionalized Hydroxamic Acid Adsorption onto Bastnäsite and Calcite Radiolysis and Radiation-Driven Dynamics of Boehmite Dissolution Observed by In Situ Liquid-Phase TEM Molecular Structure of Adsorbed Water Phases in Silica Nanopores... Frustrated Coulombic and Cation Size Effects on Nanoscale Boehmite Aggregation: A Tumbler Small- and Ultra-Small-Angle Neutro... Solution and Interface Structure and Dynamics in Geochemistry: Gateway to Link Elementary Processes to Mineral Nucleation and Growth Local molecular environment drives speciation and reactivity of ion complexes in concentrated salt solution... Pagination Current page 1 Page 2 Page 3 … Next page ›› Last page Last » Key Links Curriculum Vitae ORCID Google Scholar Organizations Physical Sciences Directorate Chemical Sciences Division Chemical Transformations Section Geochemistry and Interfacial Science Group
