Nuclear and Environmental Processes

George F. Vandegrift
phone: 630/252-4513, fax: 630/972 4513, e-mail: vandegrift@anl.gov

• PhD, Inorganic Chemistry, Iowa State University
• Separation processes for radioisotope production, radioactive waste treatment, and industrial applications
• Development of processes for treating spent nuclear fuel in support of the Global Nuclear Energy Partnership
• Development of technology to convert Mo-99 production from high-enriched uranium to low-enriched uranium as part of the Global Threat Reduction Initiative

Heavy Element and Separations Science

Lynda Soderholm, Group Leader
phone: 630/252-4364, fax: 630/252-4225, ls@anl.gov

Mark R. Antonio, Inorganic Chemist
phone: 630/252-9267, fax: 630/252-4225, e-mail: mantonio@anl.gov

• PhD, Inorganic Chemistry, Michigan State University
• Materials synthesis, including actinide and lanthanide solution chemistry
• Polyoxometalate science
• Electroanalytical chemistry
• Synchrotron radiation research
• Structured fluids in separations science

Renato Chiarizia, Inorganic Chemist
phone: 630/252-3652, fax: 630/252-7501, e-mail: chiarizia@anl.gov

• Doctor Degree, Inorganic-Physical Chemistry, University of Rome, Italy
• Separations science
• Biphasic chemical equilibria with particular emphasis on solvent extraction and ion exchange
• Separation of actinides from nuclear waste
• Separation of metal ions of hydrometallurgical interest
• Separations using supported liquid membranes
• Extraction chromatography

Mark P. Jensen, Inorganic Chemist
phone: 630/252-3670, fax: 630/252-7501, e-mail: mjensen@anl.gov

• PhD, Inorganic and Nuclear Chemistry, The Florida State University
• Actinide and lanthanide solution chemistry
• Biochemistry of synthetic elements
• Solution thermodynamics
• Metal ion separations

Guokui Liu, Solid State Physicist
phone: 630/252-4630, fax: 630/252-4225, e-mail: gkliu@anl.gov

• PhD, Solid State Physics and Laser Spectroscopy, Montana State University
• Electronic structure and crystal-field theory of lanthanides and actinides in crystals
• Excited state dynamics and ion-lattice interaction, energy transfer and phonon relaxation
• Photophysics and laser spectroscopy
• Luminescent materials, characterization and theoretical modeling

Paul G. Rickert, Analytical Chemist
phone: 630/252-3525, e-mail: rickert@anl.gov

• MA, Analytical Chemistry/Environmental Science, Governors State University
• Organic synthesis
• Synthesis and study of ionic liquid-polyoxometalate hybrids
• Synthesis and study of ionic liquids pertaining to separation science

Suntharalimgam Skanthakumar, Physicist
phone: 630/252-1754, fax: 630/252-4225, Skantha@anl.gov

Ilya (Eli) A. Shkrob, Physical Chemist
phone: 630/252-9516, e-mail: shkrob@anl.gov

• PhD, Chemical Physics, Institute for Chemical Physics, Moscow, Russia
• Radiation, photo- and radical chemistry
• Separations and nuclear forensics
• Fast and ultrafast laser and x-ray spectroscopy
• Magnetic resonance and spin effects
• Supercritical, ionic liquids and green chemistry
• Nanotechnology

Richard E. Wilson, Chemist
phone: 630/252/1288, e-mail: rewilson@anl.gov

• PhD, Chemistry, University of California, Berkeley
• Aqueous actinide chemistry
• Synthesis and study of transuranium complexes and clusters
• Reactivity of cluster complexes in solution

Yuexiao Pan
phone: 630/252-3649, fax: 630/252-4225, e-mail: yxpan@anl.gov

• Synthesis, processing, and characterization of advanced inorganic functional materials
• Study of self-assembly and nanofabrication of nanosized units, and mechanism of nanocrystal growth and luminescence dynamic

Interfacial Processes

Paul Fenter, Physicist and Group Leader
phone: 630/252-7053, fax: 630/252-9570, e-mail: fenter@anl.gov

• PhD, Physics, University of Pennsylvania
• Interfacial science
• Interfacial geochemistry (mineral / fluid interfaces)
• Phase-sensitive interfacial x-ray scattering

Changyong Park, Materials Scientist
phone: 630-252-9133, e-mail: cypark@anl.gov

• PhD, Materials Sciences, Tohoku University Japan
• Hydration and ion adsorption at mineral / water interfaces
• Electrical double layer properties on single-crystal surfaces
• In-situ probe of mineral / fluid interfacial processes
• Novel application of synchrotron radiation x-rays for geosciences

Sang Soo Lee, Geochemist
phone: 630/252-6679, fax: 630/252-9570, e-mail: sslee@anl.gov

• PhD, Geochemistry, Earth and Environmental Sciences, University of Illinois at Chicago
• Heavy metal contamination and remediation
• Mineral / organic interactions in natural aqueous systems
• Ion-exchange and swelling of clay minerals
• Application of synchrotron-based techniques

Process Chemistry and Engineering

Monica Regalbuto, Department Head
phone: 630/252-1540, fax: 630/972-4495, regalbuto@anl.gov

Separations Science and Technology

Allen Bakel, Group Leader
phone: 630/252-9825, fax: 630/972-4417, bakel@anl.gov

Artemis (Art) Guelis
phone: 630/252-6057, fax: 630/972-4522, guelis@anl.gov

John F. Krebs, Chemist
phone: 630/252-7548, fax: 630/972-4486, e-mail: krebs@anl.gov

• PhD, Inorganic Chemistry, Kansas State University
• Modeling and simulation of reprocessing facilities
• Bench scale tests of spent fuel reprocessing technology
• Modeling and simulation of solvent extraction processes

Argentina Leyva
phone: 630/252-1483, fax: 630/972-4512, leyva@anl.gov

Dominique C. Stepinski, Chemist
Phone: 630-252-3087, fax 630-252-5246, e-mail: dstepinski@anl.gov

• Design of liquid-liquid extraction systems for actinide and fission product separations
• Nuclear fuel and target dissolution
• Chemical processes for large-scale industrial applications
• Development of radioisotope separation chromatographic systems
• Modeling of fission product separation processes
• Synthesis of metal chelating ligands for metal separations

Kurt Alford, Technician
phone: 630/252-7297, alford@anl.gov

Lohman D. Hafenrichter, Technician
Phone 630/252-5282, fax 630/972-4472, e-mail hafenrichter@anl.gov

• US Navy Nuclear Power Program graduate
• CAVE operator and repairman
• MBA custodian
• Precious metals custodian

Kevin Quigley
phone: 630/252-3607, fax: 630/252-4390, quigley@anl.gov

John Falkenberg, Technician
phone: 630/252-4301, falkenberg@anl.gov

Spent Fuel Programs

James C. Cunnane, Nuclear Chemist and Group Leader
phone: 630/252-4541; fax 630/252-5246; e-mail:cunnane@anl.gov

• PhD, Nuclear Chemistry, Purdue University
• Waste form testing
• Investigate waste materials degradation and radionuclide release processes
• Long-term performance assessment of waste form materials
• Waste form development

William L. Ebert, Chemist
phone: 630/252-6103, fax 630/972-4456, e-mail: ebert@anl.gov

• PhD, Chemistry, Northwestern University
• Nuclear waste material formulation, testing, and modeling
• Test method development and standardization

Jeffrey A. Fortner, Physicist
phone: 630/252-5594, fax: 630/972-4438, e-mail: fortner@anl.gov

• PhD, Physics, Penn State University
• Nuclear waste form development, characterization, and testing
• Electron microscopy of nuclear/radioactive materials
• Spent nuclear fuel characterization
• Synchrotron x-ray studies
  

James L. Jerden Jr., Geochemist
phone: 630/252-6497, fax: 630/252-5246, e-mail: jerden@anl.gov

• PhD, Geochemistry, Virginia Tech
• Thermodynamic/kinetic reaction path and speciation modeling
• Radioactive waste form corrosion/dissolution testing
• In-situ remediation of environmental sites contaminated with metals and radionuclides
• Natural analogue studies
• Soil chemistry and environmental mineralogy
  

Process Simulation and Equipment Design

Candido Pereira, Chemical Engineer and Group Leader
phone: 630/252-9832, fax: 630/972-4448, e-mail: pereira@anl.gov

• PhD, Chemical Engineering, University of Pennsylvania
• Aqueous separations
• Solvent extraction and ion exchange
• Process modeling and design
• Spent nuclear fuel processing
• High-level waste treatment

Jacqueline M. Copple, Computer Scientist
phone: 630/252-4555, fax 630/972-4555, e-mail, copple@anl.gov

• MS, Computer Science, Illinois Institute of Technology
• Modeling and simulation (UREX+ process for recovering key radionuclides from commercial spent nuclear fuel)

Andrew Hebden, Engineer Specialist
phone: 630/252-5634, fax: 630/252-9917, e-mail: hebden@anl.gov

• BS, Chemical Engineering, Iowa State University
• Spent nuclear fuel reprocessing
• Process monitoring for reprocessing safeguards
• Non-proliferation-based research: medical isotope production

Laura E. Maggos
phone: 630/252-4701, e-mail: maggos@anl.gov

• BS, Chemistry, University of Chicago
• Aqueous separations (UREX+)
• Solvent extraction modeling

Kent  E. Wardle, Nuclear Engineer
phone: 630/252-4638, e-mail: kwardle@anl.gov

• PhD Nuclear Engineering and Engineering Physics, University of Wisconsin-Madison
• BS Chemical Engineering, Brigham Young University
• Simulation of solvent extraction processes
• Centrifugal contactor simulation for design
• Computational fluid dynamics
• Molecular dynamics simulations

Nuclear Technology

Mark A. Williamson, Physical Chemist and Department Head
phone: 630/252-9627, fax: 630/252-5246, e-mail: williamson@anl.gov

• PhD, Physical Chemistry, University of Kansas
• Advanced nuclear fuel cycles
• Pyrochemical process research and development
• Actinide thermodynamics and inorganic chemistry
• High-temperature chemistry

Pyroprocess Development Group

James L. Willit, Physical Chemist and Group Leader
Phone: 630/252-4384, fax 630/972-4416, e-mail: willit@anl.gov

• PhD, Physical Chemistry, North Carolina State University
• Molten salt electrochemistry
• High-temperature actinide chemistry
• Electrochemical separations chemistry
• Pyroprocess development

Robert J. Blaskovitz, Engineering Specialist
phone: 630/252-4441, fax: 630/972-4421, blaskovitz@anl.gov

Javier Figueroa, Chemical Engineer
phone: 630/252-4248, fax 630/52-9917, e-mail: figueroa@anl.gov

• MS, Chemical Engineering, Illinois Institute of Technology
• Pyroprocessing technology
• Plant modeling

Steven J. Limmer, Postdoctoral Appointee
phone: 630/252-7537, limmer@anl.gov

Advanced Materials and Processing Group

Mark A. Williamson, Physical Chemist and Acting Group Leader
phone: 630/252-9627, fax: 630/252-5246, e-mail: williamson@anl.gov

• PhD, Physical Chemistry, University of Kansas
• Advanced nuclear fuel cycles
• Pyrochemical process research and development
• Actinide thermodynamics and inorganic chemistry
• High-temperature chemistry

Laurel A. Barnes, Chemist
Phone: 630/252-3359, fax: 630/252-9917, email: barnes@anl.gov

• MS, Chemistry, University of Illinois at Chicago
• Molten salt electrochemistry
• Electrochemical separations
• Anode materials development

Leonard Leibowitz, Physical Chemist
phone: 630-252-4333, fax 630-972-4466, e-mail leibowitz@anl.gov

• PhD, Physical Chemistry, New York University
• High-temperature thermophysical properties
• Nuclear reactor materials studies
• Actinide alloy phase diagrams

Christine Snyder
phone: 630/252-4743, fax: 630/972-4449, snyderc@anl.gov

Mailing Address for Nuclear and Environmental Processes Staff

Chemical Sciences Division
Argonne National Laboratory
9700 South Cass Avenue
Argonne, IL  60439  USA

E-mail Nuclear and Environmental Processes Administrative Support