Kevin Rosso

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…

Novel Nanoporous Getters to Immobilize 99Tc at the Yucca Mnt (Mattigod/Felmy/Rosso, Yucka Mtn, PNNL Scope #45873)

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Herman Cho

Project type

Exploratory Research

Paul did some SEM w/ Brad Avery. Odeta needs ICP-MS. Kevin Rosso: Structures of two layered Zr/Ti&#61485;phosphate type materials will be examined in detail. The first phase is of…

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…

The Role of Microenvironments and Physicochemical Subsurface Components on Field Scale Biogeochemistry and Contaminant Mobility

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

James McKinley

Project type

Exploratory Research

This is a renewal proposal for a previous collaborative effort between the PNNL Scientific Focus Area (SFA) and EMSL. The research proposed will resolve critical Hanford and basic subsurface science…

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…

Conductivity of bacterial nanowires

Lead Institution

J. Craig Venter Institute

Principal Investigator

Yuri Gorby

Project type

Exploratory Research

Scanning tunneling microscopy will be used to image and characterize bacterial appendages produced by iron reducing bacteria that are believed to be involved with the extracellular reduction of iron…

Mechanisms and dynamics of abiotic and biotic interations at Environmental Interfaces (Rosso EMSI-Stanford, PNNL Scope # 47286).

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Kevin Rosso

Project type

Exploratory Research

I. STANFORD EMSI SCIENCE OVERVIEW The main scientific focus of the Stanford EMSI is on chemical and microbiological interactions at solid-aqueous solution interfaces of relevance to Earth?s near…

The Role of Extracellular Polymeric Substances in Bacterial Fouling of Membranes

Lead Institution

University of Houston

Principal Investigator

Shankar Chellam

Project type

Exploratory Research

Micro- and nano-porous membranes are currently employed for environmental separations to protect public health arising from a plethora of contaminants including microorganisms, natural and synthetic…

Experimental Capabilities and Fundamental Science for Geologic Carbon Sequestration: The PNNL In Situ Supercritical Suite (IS3)

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

John Loring

Project type

Large-Scale EMSL Research

This Science Theme proposal requests EMSL access for investigators in the In Situ Supercritical Suite (IS3) component of PNNL's Carbon Sequestration Initiative (CSI). The CSI is a multi-million…

Building a Predictive Understanding of Particle-Based Mineral Growth

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

James De Yoreo

Project type

Large-Scale EMSL Research

Traditional models of mineral formation through monomer-by-monomer addition have been challenged by recent evidence for crystallization through the addition of "particles," ranging from…

The Reduction of Uranyl and Chromate to Insoluble Species by Green Rust and Other Ferrous Hydroxides Surfaces

Lead Institution

State University of New York at Stony Brook

Principal Investigator

Martin Schoonen

Project type

Large-Scale EMSL Research

Electron transfer reactions play an important role in determining of the fate of many environmental contaminants. Reduction from high-oxidation states (+5/+6), where the metal is stabilized in…

Linking Microscopic to Macroscopic Adsorption/Desorption Behavior for Uranium on Environmental Materials

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Kevin Rosso

Project type

Large-Scale EMSL Research

This Science Theme proposal requests EMSL access for a subtask on an existing funded project at PNNL. The task is focused on determination of molecular-scale adsorption, desorption, and…

Coupled Surface and Solid-State Charge and Ion Transport Dynamics at Mineral/Water Interfaces: Redox Transformation of the Iron Oxides

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 BES Geosciences supported project led by Dr. Rosso at PNNL. The past three years of research under this BES project we have been…

The Transformation of Tetrahedral to Octahedral Coordination in Anions of Interest in High-Level Tank Waste

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Jian-zhi Hu

Project type

Exploratory Research

We propose to use nuclear magnetic resonance (NMR), Raman and Fourier transform-infrared (FT-IR) spectroscopy in combination with computational modeling to study the conversion of soluble tetrahedral…

Thrust Area #2: Molecular modeling of electron transfer in Fe(III) oxides

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Kevin Rosso

Project type

Grand Challenge

Molecular modeling and simulation studies in combination with electron transfer theory calculations will be carried out to characterize the cytochrome mediated electron transfer process across the…

Role of Microenvironments and Transition Zones in Subsurface Reactive Contaminant Transport

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

James McKinley

Project type

Exploratory Research

The PNNL Scientific Focus Area (SFA) will resolve critical Hanford and basic subsurface science issues through integrated, multi-disciplinary, science-theme focused research on the role of…

Multiscale processes of heteroepitaxial nucleation and growth at mineral-water interfaces

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Sebastien Kerisit

Project type

Large-Scale EMSL Research

The goal of the proposed research is to elucidate the mechanisms and quantify the rates of heteroepitaxial nucleation and growth at mineral-water interfaces. Despite several examples of heteroepitaxy…

Heteroepitaxial nucleation and growth of complex coatings at mineral/water interfaces

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Sebastien Kerisit

All realistic mineral surfaces in natural waters can be expected to be coated, and their reactive properties influenced by the presence of coatings. Heteroepitaxial growth is the templated growth of…

Electronic structure determination on mineral surfaces

Lead Institution

University of Michigan

Principal Investigator

Udo Becker

Project type

Exploratory Research

Periodic and cluster electronic structure calculations will be jointly performed on pyrite and galena surfaces to elucidate the energetics of indirect interactions between adsorbates and surface…

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…

Role of Microenvironments and Transition Zones in Subsurface Reactive Contaminant Transport

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

James McKinley

This is a renewal proposal for a previous collaborative effort between the PNNL Scientific Focus Area (SFA) and EMSL. The research proposed will resolve critical Hanford and basic subsurface science…

The Transformation of Tetrahedral to Octahedral Coordination in Anions of Interest in High-Level Tank Waste

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Jian-zhi Hu

Project type

Large-Scale EMSL Research

We propose to use nuclear magnetic resonance (NMR), Raman and Fourier transform-infrared (FT-IR) spectroscopy in combination with computational modeling to study the conversion of soluble tetrahedral…

Ecophysiological Investigation of Cyanobacteria using Controlled Cultivation

Lead Institution

J. Craig Venter Institute

Principal Investigator

Yuri Gorby

Project type

Grand Challenge

This project targets the development and operation of a fully instrumented photobioreactor that will serve to cultivate Cyanobacteria under well defined and controlled conditions. This capability…

(gc3563)Molecular Computational Studies In Environmental Chemistry, Geochemistry, and Biogeochemistry

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Eric Bylaska

Project type

Capability Research

Addressing the overwhelming environmental cleanup problems facing the Department of Energy?s nuclear production sites as well as other polluted sites in the nation is hampered by a lack of knowledge…

The Role of Interfacial Water on Mineral Transformations in Wet Supercritical CO2

Lead Institution

Washington State University

Principal Investigator

Andrew Felmy

Project type

Large-Scale EMSL Research

We propose a comprehensive experimental and theoretical investigation of the molecular mechanisms governing the role of interfacial water in the reactivity of mineral phases in supercritical carbon…

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…

The Role of Interfacial Processes on Mineral Transformations in Wet Supercritical CO2

Lead Institution

Washington State University

Principal Investigator

Andrew Felmy

Project type

Exploratory Research

We propose a comprehensive experimental and theoretical investigation of the role of interfacial water and CO2 on the energies, mechanisms, and rates of reactivity of a series of orthosilicate and…

Role of Microenvironments and Transition Zones in Subsurface Reactive Contaminant Transport

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

James McKinley

This is a renewal proposal for a previous collaborative effort between the PNNL Scientific Focus Area (SFA) and EMSL. The research proposed will resolve critical Hanford and basic subsurface science…

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…

Coupled Surface and Solid-State Charge and Ion Transport Dynamics at Mineral/Water Interfaces: Redox Transformation of the Iron Oxides

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 BES Geosciences supported project led by Dr. Rosso at PNNL. The past three years of research under this BES project we have been…

Probing Particle Mediated Growth: Towards a Predictive Understanding of Self-Assembly for Energy Applications

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Kevin Rosso

Project type

Large-Scale EMSL Research

This Science Theme proposal aims at developing a fundamental understanding of forces between nanoparticles in aqueous solution that underpin self-assembly of materials by oriented aggregation. This…

radAFM: Coupled radiation source/liquid-cell AFM to study radiation-induced interfacial processes

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Gregory Kimmel

Millions of liters of high-level radioactive wastes (HLW) stored in hundreds of tanks in the U.S. create a variety of environmental problems. To mitigate these problems, the wastes are intended to be…

Development of Microscopically-Based Models for Prediction of the Impact of Surface Grain Coating on Mineral Dissolution and Leaching Rates

Lead Institution

Washington State University

Principal Investigator

Andrew Felmy

Project type

Large-Scale EMSL Research

Over the past two decades, molecular level information on the composition, structure, and nature of impurities in naturally occurring mineral phases and anthropogenic subsurface materials has become…

Experimental Capabilities and Fundamental Science for Geologic Carbon Sequestration: The PNNL In Situ Supercritical Suite (IS3)

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Kevin Rosso

Project type

Large-Scale EMSL Research

This Science Theme proposal requests EMSL access for investigators in the In Situ Supercritical Suite (IS3) component of PNNL's Carbon Sequestration Initiative (CSI). The CSI is a multi-million…

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…

Unraveling Mechanisms of Complex Associations of Organic Carbon with Iron Oxide Minerals during Redox Transformations

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Kevin Rosso

Project type

Exploratory Research

Fe(III)-oxide nanominerals are ubiquitous primary sorbents of organic carbon, organic acid exudates, and toxic metals in terrestrial, aquatic, and subsurface ecosystems. In soil ecosystems,…

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…

The Role of Interfacial Processes on Mineral Transformations in Wet Supercritical CO2

Lead Institution

Washington State University

Principal Investigator

Andrew Felmy

Project type

Large-Scale EMSL Research

We propose a comprehensive experimental and theoretical investigation of the role of interfacial water and CO2 on the energies, mechanisms, and rates of reactivity of a series of orthosilicate and…

Hydro-Biogeochemical Process Dynamics in the Groundwater-Surface Water Interaction Zone

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

John Zachara

This is a renewal proposal for a previous collaborative effort between the PNNL Scientific Focus Area (SFA) and EMSL.PNNL Scientific Focus Area. The PNNL SFA will develop a predictive understanding…

radAFM: Coupled radiation source/liquid-cell AFM to study radiation-induced interfacial processes

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Gregory Kimmel

Millions of liters of high-level radioactive wastes (HLW) stored in hundreds of tanks in the U.S. create a variety of environmental problems. To mitigate these problems, the wastes are intended to be…

Molecular Computational Studies In Geochemistry and Environmental Chemistry

Lead Institution

Corning, Inc.

Principal Investigator

James Rustad

Project type

Capability Research

This project is focused on prediction of reaction rates, mechanisms, and associated isotopic fractionation factors of key processes in low-temperature geochemistry. Such processes can play a key role…

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…

Understanding surface species and interactions between adsorbed chloride and water on stored PuO2

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Carolyn Pearce

Project type

Special Science

Radiation induced degradation of chlorinated polymers, such as poly(vinyl chloride) (PVC), used historically in packaging of plutonium oxide (PuO2), has led to chloride-contaminated PuO2, which…

Unraveling Redox Transformation Mechanisms of Ferrihydrite and Micronutrient Metal Incorporation at the Molecular Scale

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Kevin Rosso

Project type

Large-Scale EMSL Research

Understanding aquatic chemistry, the natural cycling and fractionation of elements, and energy flow in soils almost always involves, by necessity, attention to the governing influence of electron…

Distance-Dependent Electron Transfer to Mineral Surfaces Mediated by Bacterial Multiheme Cytochromes

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Michael Hochella

Project type

Large-Scale EMSL Research

The dissimilatory metal reducing bacterium Shewanella oneidensis is capable of utilizing certain mineral surfaces as electron acceptors in the terminal step of its respiratory pathway. Bacterial…

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…

Unraveling chemical speciation and interfacial dynamics in complex, heterogeneous
environments to efficiently process high-level radioactive wastes

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Jian-zhi Hu

We propose to use NMR in combination with computational modeling, to study the conversion of soluble tetrahedral aluminum (Al) species to octahedrally coordinated Al-bearing mineral precipitates…

Projects