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Kevin Rosso

Institution
Pacific Northwest National Laboratory
ORCID
ORCID logo 0000-0002-8474-7720

Projects

Understanding coupled chemical-mechanical behaviors in minerals

Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
Xin Zhang
Project type
Contracted Time
This proposal aims to develop a comprehensive, unified understanding of how applied stress and interfacial chemistry couple to define mineral nanoparticle dissolution, recrystallization, and…

Implications of U(IV)-silicate core-shell colloids for radionuclide transport

Lead Institution
University of Manchester
Principal Investigator
Samuel Shaw
Project type
Large-Scale EMSL Research
Here we will use a range of techniques to advance fundamental and predictive understanding of uranium colloids in the subsurface environment. Recent work has highlighted that U(IV)-silicate colloids…

(GC8)Computational Studies in Molecular Geochemistry and Biogeochemistry

Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
Herman Cho
Project type
Capability Research
The ability to predict the transport and transformations of contaminants within the subsurface is critical for decisions on virtually every waste disposal option, from remediation technologies such…

Multinuclear NMR Studies of and Earth and Energy Systems

Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
Karl Mueller
A team of researchers at PNNL carries out studies that utilize high-resolution nuclear magnetic resonance (NMR) spectroscopy in areas of national need for Basic Energy Sciences (BES). The research…

(GC8)Computational Studies in Molecular Geochemistry and Biogeochemistry

Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
Herman Cho
Project type
Capability Research
The ability to predict the transport and transformations of contaminants within the subsurface is critical for decisions on virtually every waste disposal option, from remediation technologies such…

Molecular-scale controls on heteroepitaxy at mineral-water interfaces

Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
Sebastien Kerisit
Project type
Large-Scale EMSL Research
The objective of the proposed research is to elucidate and quantify the molecular-scale mechanisms of heteroepitaxial nucleation and growth at mineral-water interfaces. Despite several examples of…

Oxide Surface Structure and Acidity

Lead Institution
Brigham Young University
Principal Investigator
Barry Bickmore
Project type
Large-Scale EMSL Research
If we are to understand interfacial geochemical reactions on a molecular scale and apply the insights we gain to field-scale modeling, we must find ways to integrate the results of molecular-scale…

Multi-Resolution Structure and Reactivity of Kinetically
Roughened Oxide Surfaces: Nanometric Scaling Behavior
and Molecular-Scale Controls (Rosso BES,PNNL Scope #43862. Rosso BES)

Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
Kevin Rosso
Project type
Exploratory Research
Surfaces of Fe oxides, Mn oxides and Si oxides (quartz) minerals in natural settings exhibit a significant degree of morphological heterogeneity on scales from 1-1000 nm. Surface roughness and its…

Exploring the processes that control uranyl reduction by magnetite and the growth of nanoparticulate surface precipitates by X-ray scattering and X-ray absorption spectroscopy

Lead Institution
Lawrence Berkeley National Laboratory
Principal Investigator
Glenn Waychunas
Project type
Exploratory Research
Uranium (U) has been released into the environment through mining operations, nuclear testing, and accidental spills, and is a contaminant in soils, sediments and groundwater at 70% of the Department…

Isotope-Resolved Mapping of Fe(II)/Fe(III)-Oxide Redox Exchange Interfaces

Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
Kevin Rosso
Project type
Special Science
In subsurface redox microenvironments, as an outcome of essential microbial activity, interaction of aqueous Fe(II) with Fe(III)-(oxyhydr)oxide minerals such as goethite and hematite yields a…

Probing Iron Oxide Mineral Aggregation Behavior with Soil Organic Matters

Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
Xin Zhang
Project type
Large-Scale EMSL Research
The goal of this project is to develop a fundamental understanding of iron oxide nanoparticle (NPs) aggregation mechanisms with soil organic matters (SOM). Heteroaggregation is a ubiquitous but…

Reduction of U6+ by magnetite and the rate of electron transfer

Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
Frances Skomurski
Project type
Large-Scale EMSL Research
The reductive adsorption of uranium(VI) by ferrous iron in magnetite (Fe3O4) is an important process for reducing the mobility of contaminants in groundwater and for sequestering radionuclides in the…

Mineral Reactivity and Transformations in Adsorbed Water Films

Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
John Loring
Project type
Large-Scale EMSL Research
Transformations of minerals covered in thin films of adsorbed H2O are ubiquitous in nature and occur under unique chemical and physical constraints. But in contrast to bulk aqueous systems,…

Controlling the Thermal and Non-Thermal Reactivities of Metal Oxide Structures Through Nanoscaling - Controlling Reactivities of Metal Oxide Strcutures(Mike Henderson's BES Project - 43626)

Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
Michael Henderson
Project type
Exploratory Research
The constrained dimensions in nanoscaled materials produces unique chemical properties that will form the basis for important new technologies. A key scientific challenge is to understand how to…

Advances in Understanding Electron Transfer Kinetics at Environmental Interfaces

Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
Kevin Rosso
Project type
Large-Scale EMSL Research
This EMSL user proposal requests a continuation of EMSL access for a BER funded Environmental Molecular Sciences Institute (EMSI) project led by Dr. Rosso at PNNL. This project constitutes the PNNL…

Mechanisms of Fe(II)-Catalyzed Transformation of Fe(III)-(Oxyhydr)oxides

Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
Kevin Rosso
Project type
Large-Scale EMSL Research
Interaction of aqueous Fe(II) with major Fe(III)-oxides and oxyhydroxides yields the enigmatic catalytically reactive "sorbed Fe(II)" species and apparent facile recrystallization of even…