Frances Skomurski

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…

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…

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…

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…

Development of Catalysts for the Selective Conversion of Biomass Derived Products to Fuels

Lead Institution

Virginia Polytechnic Institute

Principal Investigator

Ayman Karim

Project type

Exploratory Research

The large increase in energy demand by emerging economies and the environmental concerns over the use of fossil fuels has led to the focus on renewable energy sources such as biomass. Several…

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…

Interaction of Radiolytic Species with Noble Metal Particles in Used Nuclear Fuel

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Frances Skomurski

Project type

Exploratory Research

Noble metal particles (NMP) in used nuclear fuel are nanometer to micron sized alloys of the fission product elements Mo, Tc, Rh, Ru, and Pd. These metals are largely incompatible with the…

Development of Catalysts for the Selective Conversion of Biomass Derived Products to Fuels

Lead Institution

Virginia Polytechnic Institute

Principal Investigator

Ayman Karim

The large increase in energy demand by emerging economies and the environmental concerns over the use of fossil fuels has led to the focus on renewable energy sources such as biomass. Several…

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…

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…

The interaction between uranium(VI) and magnetite surfaces: a combined STM and electron transfer calculation approach

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Frances Skomurski

Project type

Exploratory Research

The interaction between iron-oxide mineral surfaces and uranium(VI) in solution is of interest because of the potential for reducing radionuclide mobility by sorption and/or reduction. The reduction…

Projects