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Applied Geology and Geochemistry

Jim Neeway

Jim Neeway

Pacific Northwest National Laboratory
PO Box 999
Richland, WA 99352


Dr. Neeway specializes in the understanding of the long-term behavior of nuclear waste forms in geological environments. His studies have focused on secondary phase formation effects on the stability of glasses, the effect of repository near-field engineered barriers on glass durability, the diffusion of alkali metals in the glass matrix, the relative stability of various minerals in multiphase waste forms, and the immobilization of technetium in selected phases. He has used various solid and solution analysis techniques such as SEM/EDS, XRF, TEM, ToF-SIMS, nano-SIMS, APT, IC, ICP-MS, and ICP-OES in his research and is able to model the chemical environment with geochemical software.

Research Interests

  • Safe nuclear waste disposal
  • Geochemical transport
  • Nuclear waste glass performance

Education and Credentials

  • B.S. Chemistry, Washington State University, 2004
  • M.S. Nuclear Chemistry, Oregon State University, 2007
  • Ph.D. Radiochemistriy, Universit√© de Nantes, 2011

Affiliations and Professional Service

  • Member of American Ceramic Society
  • Member of American Chemical Society

PNNL Publications


  • Neeway JJ, RM Asmussen, BPG Parruzot, E Cordova, BD Williams, II Leavy, JR Stephenson, and EM McElroy. 2017. FY2016 ILAW Glass Corrosion Testing with the Single-Pass Flow-Through MethodPNNL-26169; RPT-IGTP-013 Rev. 0.0, Pacific Northwest National Laboratory, Richland, WA. 
  • Zhang J, JJ Neeway, Y Zhang, JV Ryan, W Yuan, T Wang, and Z Zhu. 2017. "Nanoscale Imaging of Alteration Layers of Corroded International Simple Glass Particles using ToF-SIMS." Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms 404:45-51.  doi:10.1016/j.nimb.2017.01.053


  • Williams BD, JJ Neeway, MMV Snyder, ME Bowden, JE Amonette, BW Arey, EM Pierce, CF Brown, and N Qafoku. 2016. "Mineral Assemblage Transformation of a Metakaolin-based Waste Form After Geopolymer Encapsulation." Journal of Nuclear Materials 473:320-332.  doi:10.1016/j.jnucmat.2015.12.023
  • Asmussen RM, CI Pearce, AR Lawter, JJ Neeway, BL Miller, BD Lee, NM Washton, JR Stephenson, RE Clayton, ME Bowden, EC Buck, E Cordova, N Qafoku, and BD Williams. 2016. Getter Incorporation into Cast Stone and Solid State CharacterizationsPNNL-25577 Rev. 0;RPT-SLAW-003 Rev A, Pacific Northwest National Laboratory, Richland, WA. 
  • Asmussen RM, JJ Neeway, AR Lawter, TG Levitskaia, WW Lukens, and N Qafoku. 2016. "The Function of Sn(II)-Apatite as a 99-Tc Immobilizing Agent." Journal of Nuclear Materials 480:393-402.  doi:10.1016/j.jnucmat.2016.09.002
  • Asmussen RM, JJ Neeway, AR Lawter, AD Wilson, and N Qafoku. 2016. "Silver Based Getters for 129-I Removal from Low Activity Wastes." Radiochimica Acta 104(12):905-913.  doi:10.1515/ract-2016-2598
  • Gin S, L Neill, M Fournier, P Frugier, T Ducasse, M Tribet, A Abdelouas, B Parruzot, JJ Neeway, and N Wall. 2016. "The Controversial Role of Inter-diffusion in Glass Alteration." Chemical Geology 440:115-123.  doi:10.1016/j.chemgeo.2016.07.014
  • Lu X, JJ Neeway, JV Ryan, and J Du. 2016. "Influence of low concentration V and Co oxide doping on the dissolution behaviors of simplified nuclear waste glasses." Journal of Non-crystalline Solids 452:161-168.  doi:10.1016/j.jnoncrysol.2016.08.026
  • Mitroshkov AV, JV Ryan, LMP Thomas, and JJ Neeway. 2016. "Comprehensive Isotopic and Elemental Analysis of a Multi-Oxide Glass by Multicollector ICP-MS in Isotope Substitution Studies." Journal of Chromatography & Separation Techniques 7(2):Article No. 320.  doi:10.4172/2157-7064.1000320
  • Neeway JJ, N Qafoku, BD Williams, MMV Snyder, CF Brown, and EM Pierce. 2016. "Evidence of Technetium and Iodine from a Sodalite-Bearing Ceramic Waste Form." Applied Geochemistry 66:210-218.  doi:10.1016/j.apgeochem.2015.12.017
  • Neeway JJ, RM Asmussen, AR Lawter, ME Bowden, WW Lukens, D Sarma, BJ Riley, MG Kanatzidis, and N Qafoku. 2016. "Removal of TcO4- from Representative Nuclear Waste Streams with Layered Potassium Metal Sulfide Materials." Chemistry of Materials 28(11):3976-3983.  doi:10.1021/acs.chemmater.6b01296
  • Neeway JJ, SN Kerisit, J Liu, J Zhang, Z Zhu, BJ Riley, and JV Ryan. 2016. "Ion-Exchange Interdiffusion Model with Potential Application to Long-Term Nuclear Waste Glass Performance." Journal of Physical Chemistry C 120(17):9374-9384.  doi:10.1021/acs.jpcc.6b03681
  • Wang Z, J Liu, Y Zhou, JJ Neeway, DK Schreiber, JV Crum, JV Ryan, X Wang, F Wang, and Z Zhu. 2016. "Nanoscale Imaging of Li and B in Nuclear Waste Glass, a Comparison of ToF-SIMS, NanoSIMS and APT." Surface and Interface Analysis 48(13):1392-1401.  doi:10.1002/sia.6049


  • Neeway JJ, AR Lawter, RJ Serne, RM Asmussen, and N Qafoku. 2015. "Technetium Getters to Improve Cast Stone Performance." In MRS Proceedings: Scientific Basis for Nuclear Waste Management XXXVIII, vol. 1744, ed. S Gin, R Jubin, J Matyas and E Vance, pp. 43-52.  Materials Research Society , Warrendale, PA.  doi:10.1557/opl.2015.310
  • Neeway JJ, N Qafoku, RJ Serne, AR Lawter, JR Stephenson, WW Lukens, and JH Westsik, Jr. 2015. Evaluation of Technetium Getters to Improve the Performance of Cast StonePNNL-23667 Rev. 1;EMSP-RPT-026 Rev1, Pacific Northwest National Laboratory, Richland, WA. 
  • Qafoku N, JJ Neeway, AR Lawter, TG Levitskaia, RJ Serne, JH Westsik, Jr, and MMV Snyder. 2015. Technetium and Iodine Getters to Improve Cast Stone Performance PNNL-23282 Rev. 1, Pacific Northwest National Laboratory, Richland, WA. 
  • Reiser JT, L Neill, JL Weaver, B Parruzot, C Musa, JJ Neeway, JV Ryan, N Qafoku, S Gin, and N Wall. 2015. "Glass corrosion in the presence of iron-bearing materials and potential corrosion suppressors." In Scientific Basis for Nuclear Waste Management XXXVIII. MRS Proceedings, vol. 1744, ed. S Gin, R Jubin, J Matyas and E Vance, pp. 139-144.  Materials Research Society, Cambridge, United Kingdom.  doi:10.1557/opl.2015.503
  • Wang Z, B Liu, E Zhao, K Jin, Y Du, JJ Neeway, JV Ryan, D Hu, H Zhang, M Hong, S Le Guernic, S Thevuthasan, F Wang, and Z Zhu. 2015. "Argon Cluster Sputtering Source for ToF-SIMS Depth Profiling of Insulating Materials: High Sputter Rate and Accurate Interfacial Information." Journal of the American Society for Mass Spectrometry 26(8):1283-1290.  doi:10.1007/s13361-015-1159-1


  • Neeway JJ, EM Pierce, VL Freedman, JV Ryan, and N Qafoku. 2014. A Strategy to Conduct an Analysis of the Long-Term Performance of Low-Activity Waste Glass in a Shallow Subsurface Disposal System at HanfordPNNL-23503; RPT-66309-001 Rev. 0, Pacific Northwest National Laboratory, Richland, WA. 
  • Neeway JJ, N Qafoku, BD Williams, KA Rod, ME Bowden, CF Brown, and EM Pierce. 2014. "Performance of the Fluidized Bed Steam Reforming Product Under Hydraulically Unsaturated Conditions." Journal of Environmental Radioactivity 131:119-128.  doi:10.1016/j.jenvrad.2013.10.008
  • Neeway JJ, SN Kerisit, S Gin, Z Wang, Z Zhu, and JV Ryan. 2014. "Low-temperature lithium diffusion in simulated high-level boroaluminosilicate nuclear waste glasses." Journal of Non-crystalline Solids 405:83-90.  doi:10.1016/j.jnoncrysol.2014.08.053
  • Qafoku N, JJ Neeway, AR Lawter, TG Levitskaia, RJ Serne, JH Westsik, Jr, and MMV Snyder. 2014. Technetium and Iodine Getters to Improve Cast Stone PerformancePNNL-23282, Pacific Northwest National Laboratory, Richland, WA. 
  • Strachan DM, and JJ Neeway. 2014. "Effects of alteration product precipitation on glass dissolution." Applied Geochemistry 45:144-157.  doi:10.1016/j.apgeochem.2014.03.013
  • Wang YC, DK Schreiber, JJ Neeway, S Thevuthasan, JE Evans, JV Ryan, Z Zhu, and W Wei. 2014. "NanoSIMS Imaging Alternation Layers of a Leached SON68 Glass Via A FIB-made Wedged Crater." Surface and Interface Analysis 46(S1):233-237.  doi:10.1002/sia.5585


  • Gin S, JV Ryan, DK Schreiber, JJ Neeway, and M Cabie. 2013. "Contribution of atom-probe tomography to a better understanding of glass alteration mechanisms: application to a nuclear glass specimen altered 25 years in a granitic environment ." Chemical Geology 349-350:99-109. 
  • Neeway JJ, N Qafoku, CF Brown, and RA Peterson. 2013. "Characterization and Leaching Tests of the Fluidized Bed Steam Reforming (FBSR) Waste Form for LAW Immobilization." In Proceedings of the Annual Waste Management Symposium (WM2013): International Collaboration and Continuous Improvement, February 24-28, 2013, Phoenix, Arizona, vol. 3, pp. 2268-2275, Paper No. 13400.  WM Symposia, Tucson, AZ. 


  • Neeway JJ, N Qafoku, BD Williams, MM Valenta, EA Cordova, SC Strandquist, DNC Dage, and CF Brown. 2012. "Single Pass Flow-Through (SPFT) Test Results of Fluidized Bed Steam Reforming (FBSR) Waste Forms used for LAW Immobilization." In Waste Management Symposium (WM 2012): Improving the Future in Waste Management, February 26 - March 1, 2012, Phoenix, Arizona, p. Paper No. 12252.  Waste Management Symposia, Inc., Tucson, AZ. 
  • Neeway JJ, N Qafoku, JH Westsik, Jr, CF Brown, C Jantzen, and EM Pierce. 2012. "Radionuclide and contaminant immobilization in the fluidized bed steam reforming waste products." Chapter 11 in Radioactive Waste, ed. RA Rahman, pp. 239-262.  InTech Europe, Rijeka, Croatia (Local Name: Hrvatska). 


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