Kevin Rosso | Environmental Molecular Sciences Laboratory

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…

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…

Development of Single Molecule Force Microscopy Capability to Examine the Moleuclar Mechanism of Lignocellulosic Material Degradation

Lead Institution

The Ohio State University

Principal Investigator

Brian Lower

Project type

Large-Scale EMSL Research

The objective of this proposal is to develop a novel capability based on scanning probe microscopy to examine the enzyme-catalyzed hydrolysis of insoluble lignocellulosic material at the molecular…

Role of Microenvironments and Transition Zones in Field scale microbial ecology and biogeochemistry

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…

Exploring the Mechanistics of Stress Corrosion Cracking Through Fundamental Studies of Material Degradation in Hostile Environments

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Daniel Schreiber

Environmental degradation is a vital concern in high-temperature, hostile environments found in current and future generation power generation systems. Despite decades of research, there is no…

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…

Role of Microenvironments and Transition Zones in Field Scale Microbial Ecology and Biogeochemistry

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

James McKinley

Project type

Limited Scope

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…

Proof-of-principle work using CeO2 as an analogue to understand surface species and interactions between adsorbed chloride and water on stored PuO2

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Carolyn Pearce

Project type

Limited Scope

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…

Solar Photolysis of Dissolved Organic Matter in the Presence of Iron Oxide Nanoparticles

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Kevin Rosso

Project type

Limited Scope

We propose to conduct the photodegradation on two dissolved organic matter (DOM) samples in the presence of hematite nanoparticles under solar light for the first time. This treatment will produce…

Reductive Transformation of Iron Oxides: Coupled Solution and Solid-State Pathways

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Kevin Rosso

Project type

Large-Scale EMSL Research

Reductive transformation of Fe(III)-oxides such as &#61537; Fe2O3 (hematite) by aqueous dissolution / re precipitation is a central part of the natural biogeochemical iron cycle in the…

Multiscale Processes of Heteroepitaxial Nucleation and Growth at Mineral-Water Interfaces

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Sebastien Kerisit

Project type

Exploratory 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…

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,…

Understanding Mechanisms Coupling the Fates of Iron Oxides, Organic Matter, and Micronutrient Metals at Redox Hot Spots

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Kevin Rosso

Project type

Large-Scale EMSL Research

Iron (oxyhydr)oxide minerals are ubiquitous in soils and sediments and play an commanding role in nutrient cycling, microbial metabolism, carbon protection, and contaminant immobilization. Among them…

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…

Microscale and spectroscopic investigations in geochemical and microbiological systems

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

John Zachara

Project type

Large-Scale EMSL Research

Apply experimental manipulation and field investigations to understanding the behavior of selected chemical and microbial components in natural systems. The research is targeted towards compounds…

Interactions Between Fe(III) - Reducing Bacteria and Fe Oxides: Microbial and Geochemical Dissolution Controls (Zachara BES-oxide), PNNL Scope #28036)

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

John Zachara

Project type

Exploratory Research

Investigate electron transfer mechanisms involved in bacterial Fe(III) oxide reduction. Work authorization text added 08/11/05: Fe(III) oxides poise the oxidation/reduction potential of…

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…

Harnessing Biomineralization Potential of Metal-Oxidizing Bacteria for REE Synthesis

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Alex Beliaev

Although redox reactions and enzymes participating in the extracellular oxidation of Fe and Mn are identified, little is known about the biomineralization mechanisms that facilitate formation…

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…

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