Catalysis Science Group Lead
Catalysis Science Group Lead


Nancy Washton focuses on coupling nuclear magnetic resonance (NMR) with computational chemistry to further understand catalytically active materials. She specializes in solid-state NMR (ssNMR) and studies of surface reactivity in complex oxide systems and their interfaces, including the reactivity of clays and aluminosilicate minerals (e.g., feldspars), natural and synthetic glass and fiberglass materials, and many metal oxide systems, including the interactions between metal oxides and organic matter in soils and atmospheric particles.

Disciplines and Skills

  • Analytical Skills
  • Collaborative Project Management
  • Mentoring
  • NMR
  • Project Management Skills
  • Solid-State Characterization
  • Solid-State NMR


  • PhD in Chemistry, Pennsylvania State University
  • BS in Chemistry, University of Nevada – Las Vegas

Affiliations and Professional Service

  • American Chemical Society



  • Lu X., J. Reiser, B. Parruzot, L. Deng, I. Gussav, J. Neuefeind, and T.R. Graham, et al. 2021. "Effects of Al:Si and (Al+Na):Si Ratios on the Properties of the International Simple Glass, Part II: Structure." Journal of the American Ceramic Society 104, no. 1:183-207. PNNL-SA-152946. doi:10.1111/jace.17447
  • Wang A., Y. Chen, E.D. Walter, N.M. Washton, T. Varga, Y. Wang, and J. Szanyi, et al. 2021. "Remarkable self-degradation of Cu/SAPO-34 selective catalytic reduction catalysts during storage at ambient conditions." Catalysis Today 360. PNNL-SA-148098. doi:10.1016/j.cattod.2020.01.034


  • Kovarik L., M.E. Bowden, A. Andersen, N.R. Jaegers, N.M. Washton, and J. Szanyi. 2020. "Quantification of High-Temperature Transition Al2O3 and Their Phase Transformations." Angewandte Chemie International Edition 59, no. 48:21719-21727. PNNL-SA-153941. doi:10.1002/anie.202009520
  • Zhang Y., Y. Wu, Y. Peng, J. Li, E.D. Walter, Y. Chen, and N.M. Washton, et al. 2020. "Quantitative Cu counting methodologies for Cu/SSZ-13 selective catalytic reduction catalysts by electron paramagnetic resonance spectroscopy." Journal of Physical Chemistry C 124, no. 51:28061-28073. PNNL-SA-156011. doi:10.1021/acs.jpcc.0c07971


  • Chacon S.S., P.N. Reardon, C.J. Burgess, S.O. Purvine, R.K. Chu, T.R. Clauss, and E.D. Walter, et al. 2019. "Mineral Surfaces as Agents of Environmental Proteolysis: Mechanisms and Controls." Environmental Science & Technology 53, no. 6:3018-3026. PNNL-SA-141783. doi:10.1021/acs.est.8b05583
  • Chen Y., N.M. Washton, R.P. Young, A.J. Karkamkar, J.J. De Yoreo, and K.T. Mueller. 2019. "Monitoring solvent dynamics and ion associations in the formation of cubic octamer polyanion in tetramethylammonium silicate solutions." Physical Chemistry Chemical Physics. PCCP 21, no. 9:4717-4720. PNNL-SA-141469. doi:10.1039/C8CP07521B
  • Cui Y., Y. Wang, D. Mei, E.D. Walter, N.M. Washton, J.D. Holladay, and Y. Wang, et al. 2019. "Revisiting effects of alkali metal and alkaline earth co-cation additives to Cu/SSZ-13 selective catalytic reduction catalysts." Journal of Catalysis 378. PNNL-SA-141699. doi:10.1016/j.jcat.2019.08.028
  • Mehta H.S., Y. Chen, J.A. Sears, E.D. Walter, M. Campos, J. Kothandaraman, and D.J. Heldebrant, et al. 2019. "A Novel High-Temperature MAS Probe with Optimized Temperature Gradient across Sample Rotor for In-situ Monitoring of High-Temperature High-Pressure Chemical Reactions." Solid State Nuclear Magnetic Resonance 102. PNNL-SA-143153. doi:10.1016/j.ssnmr.2019.06.003
  • Muller K., H. Foerstendorf, R. Steudtner, S. Tsushima, M. Kumke, G. Lefevre, and J. Rothe, et al. 2019. "Interdisciplinary round-robin test on molecular spectroscopy of the U(VI) acetate system." ACS Omega 4, no. 5:8167-8177. PNNL-SA-134583. doi:10.1021/acsomega.9b00164
  • Qi L., A. Chamas, Z.R. Jones, E.D. Walter, D.W. Hoyt, N.M. Washton, and S.L. Scott. 2019. "Unraveling the Dynamic Network in the Reactions of an Alkyl Aryl Ether Catalyzed by Ni/y-Al2O3 in 2-Propanol." Journal of the American Chemical Society 141, no. 43:17370-17381. PNNL-SA-148402. doi:10.1021/jacs.9b09071
  • Stavila V., M. Foster, J.W. Brown, R.W. Davis, J. Edgington, A.I. Benin, and R.A. Zarkesh, et al. 2019. "IRMOF-74(n)-Mg: a novel catalyst series for hydrogen activation and hydrogenolysis of C-O bonds." Chemical Science 10, no. 42:9880-9892. PNNL-SA-147308. doi:10.1039/C9SC01018A
  • Wang A., Y. Chen, E.D. Walter, N.M. Washton, D. Mei, T. Varga, and Y. Wang, et al. 2019. "Unraveling the mysterious failure of Cu/SAPO-34 selective catalytic reduction catalysts." Nature Communications 10, no. 1:Article No. 1137. PNNL-SA-138654. doi:10.1038/s41467-019-09021-3
  • Wang A., Y. Wang, E.D. Walter, N.M. Washton, Y. Guo, G. Lu, and C. Peden, et al. 2019. "NH3-SCR on Cu, Fe and Cu+Fe exchanged Beta and SSZ-13 catalysts: hydrothermal aging and propylene poisoning effects." Catalysis Today 320. PNNL-SA-128427. doi:10.1016/j.cattod.2017.09.061
  • Wang G., Z. Zhao, J. Ke, Y. Engel, Y. Shi, D.S. Robinson, and A.K. Bingol, et al. 2019. "CRAGE enables rapid activation of biosynthetic gene clusters in undomesticated bacteria." Nature Microbiology 4, no. 12:2498-2510. PNNL-SA-133313. doi:10.1038/s41564-019-0573-8
  • Xiao D.J., E.D. Chant, A.D. Frankhouser, Y. Chen, A. Yau, N.M. Washton, and M.W. Kanan. 2019. "A closed cycle Esterifying Aromatic Hydrocarbons with CO2 and Alcohol." Nature Chemistry 11, no. 10:940-947. PNNL-SA-144281. doi:10.1038/s41557-019-0313-y


  • Reardon P.N., E.D. Walter, C.L. Marean-Reardon, C.W. Lawrence, M.W. Kleber, and N.M. Washton. 2018. "Carbohydrates Protect Protein Against Abiotic Fragmentation By Soil Minerals." Scientific Reports 8. PNNL-SA-132243. doi:10.1038/s41598-017-19119-7
  • Sihvonen S.K., K.A. Murphy, N.M. Washton, M. Altaf, K.T. Mueller, and M.A. Freedman. 2018. "Effect of Acid on Surface Hydroxyl Groups on Kaolinite and Montmorillonite." Zeitschrift fur Physikalische Chemie--International Journal of Research in Physical Chemistry and Chemical Physics 232, no. 3:409-430. PNNL-SA-117605. doi:10.1515/zpch-2016-0958
  • Warneke J., M.E. McBriarty, S.L. Riechers, S. China, M.H. Engelhard, E. Apra, and R.P. Young, et al. 2018. "Self-organizing layers from complex molecular anions." Nature Communications 9, no. 1:1889. PNNL-SA-128240. doi:10.1038/s41467-018-04228-2
  • Weaver J.L., C.Z. Soderquist, N.M. Washton, P.L. Gassman, E.D. Walter, M.E. Bowden, and W.W. Lukens, et al. 2018. "Challenges and Solutions for Handling and Characterizing Alkali-Tc-Oxide Salts." MRS Advances 3, no. 21:1191-1200. PNNL-SA-130916. doi:10.1557/adv.2018.165
  • Yesiltepe Y., J. Nunez, S.M. Colby, D.G. Thomas, M.I. Borkum, P.N. Reardon, and N.M. Washton, et al. 2018. "An automated framework for NMR chemical shift calculations of small organic molecules." Journal of Cheminformatics 10. PNNL-SA-137588. doi:10.1186/s13321-018-0305-8


  • Brozek E.M., N.M. Washton, K.T. Mueller, and I. Zharov. 2017. "Silsesquioxane Nanoparticles With Reactive Internal Functional Groups." Journal of Nanoparticle Research 19, no. 2:Article No. 85. PNNL-SA-124400. doi:10.1007/s11051-017-3771-4
  • Chatterjee S., A. Andersen, Y. Du, M.H. Engelhard, G.B. Hall, T.G. Levitskaia, and W.W. Lukens, et al. 2017. Characterization of Non-pertechnetate Species Relevant to the Hanford Tank Waste. PNNL-26265. Richland, WA: Pacific Northwest National Laboratory. Characterization of Non-pertechnetate Species Relevant to the Hanford Tank Waste
  • Kovarik L., N.M. Washton, R.K. Kukkadapu, A. Devaraj, A. Wang, Y. Wang, and J. Szanyi, et al. 2017. "Transformation of active sites in Fe/SSZ-13 SCR catalysts during hydrothermal aging: a spectroscopic, microscopic and kinetics study." ACS Catalysis 7, no. 4:2458-2470. PNNL-SA-123026. doi:10.1021/acscatal.6b03679
  • Ok S., D.W. Hoyt, A. Andersen, J. Sheets, S. Welch, D.R. Cole, and K.T. Mueller, et al. 2017. "Surface Interactions and Confinement of Methane: A High Pressure Magic Angle Spinning NMR and Computational Chemistry Study." Langmuir 33, no. 6:1359-1367. PNNL-SA-123185. doi:10.1021/acs.langmuir.6b03590
  • Prodinger S., M.A. Derewinski, Y. Wang, N.M. Washton, E.D. Walter, J. Szanyi, and F. Gao, et al. 2017. "Sub-micron Cu/SSZ-13: synthesis and application as selective catalytic reduction (SCR) catalysts." Applied Catalysis. B, Environmental 201. PNNL-SA-117975. doi:10.1016/j.apcatb.2016.08.053
  • Qi L., R. Alamillo, W.A. Elliott, A. Andersen, D.W. Hoyt, E.D. Walter, and K. Han, et al. 2017. "Operando solid-state NMR observations of solvent-mediated adsorption-reaction of carbohydrates in zeolites." ACS Catalysis 7, no. 5:3489-3500. PNNL-SA-119548. doi:10.1021/acscatal.7b01045
  • Song J., Y. Wang, E.D. Walter, N.M. Washton, D. Mei, L. Kovarik, and M.H. Engelhard, et al. 2017. "Towards rational design of Cu/SSZ-13 selective catalytic reduction catalysts: Implications from atomic-level understanding of hydrothermal stability." ACS Catalysis 7, no. 12:8214-8227. PNNL-SA-128659. doi:10.1021/acscatal.7b03020
  • Weaver J.L., C.Z. Soderquist, N.M. Washton, A.S. Lipton, P.L. Gassman, W.W. Lukens, and A.A. Kruger, et al. 2017. "Chemical Trends in Solid Alkali Pertechnetates." Inorganic Chemistry 56, no. 5:2533-2544. PNNL-SA-121324. doi:10.1021/acs.inorgchem.6b02694
  • Xu K., P.R. Hrma, N.M. Washton, M.J. Schweiger, and A.A. Kruger. 2017. "Conversion of Nuclear Waste to Molten Glass: Formation of Porous Amorphous Alumina in a High-Al Melter Feed." Journal of Nuclear Materials 483. PNNL-SA-118421. doi:10.1016/j.jnucmat.2016.11.005


  • Andersen A., P.N. Reardon, S.S. Chacon, N. Qafoku, N.M. Washton, and M. Kleber. 2016. "Protein-mineral Interactions: Molecular Dynamics Simulations Capture Importance of Variations in Mineral Surface Composition and Structure." Langmuir 32, no. 24:6194-6209. PNNL-SA-116971. doi:10.1021/acs.langmuir.6b01198
  • Hall G.B., A. Andersen, N.M. Washton, S. Chatterjee, and T.G. Levitskaia. 2016. "Theoretical modeling of 99Tc NMR chemical shifts." Inorganic Chemistry 55, no. 17:8341-8347. PNNL-SA-116205. doi:10.1021/acs.inorgchem.6b00458
  • Reardon P.N., S.S. Chacon, E.D. Walter, M.E. Bowden, N.M. Washton, and M.W. Kleber. 2016. "Abiotic protein fragmentation by manganese oxide: implications for a mechanism to supply soil biota with oligopeptides." Environmental Science & Technology 50, no. 7:3486-3493. PNNL-SA-108407. doi:10.1021/acs.est.5b04622
  • Tian C., X. Zhu, C.W. Abney, Z. Tian, D. Jiang, K. Han, and S.M. Mahurin, et al. 2016. "Use of Steric Encumbrance to Develop Conjugated Nanoporous Polymers for Metal-free Catalytic Hydrogenation." Chemical Communications 52, no. 80:11919-11922. PNNL-SA-121064. doi:10.1039/c6cc06372a


  • Chatterjee S., G.B. Hall, T.G. Levitskaia, E.D. Walter, and N.M. Washton. 2015. Oxidative Stability of Tc(I) Tricarbonyl Species Relevant to the Hanford Tank Waste. PNNL-25076; EMSP-RPT-033 Rev 0. Richland, WA: Pacific Northwest National Laboratory. Oxidative Stability of Tc(I) Tricarbonyl Species Relevant to the Hanford Tank Waste
  • Cheng Y., R.M. Stolley, K. Han, Y. Shao, B.W. Arey, N.M. Washton, and K.T. Mueller, et al. 2015. "Highly Active Electrolytes for Rechargeable Mg Batteries Based on [Mg2(µ-Cl)2]2+ Cation Complex in Dimethoxyethane." Physical Chemistry Chemical Physics. PCCP 17, no. 20:13307-13314. PNNL-SA-106553. doi:10.1039/C5CP00859J
  • Gao F., E.D. Walter, N.M. Washton, J. Szanyi, and C.H. Peden. 2015. "Synthesis and Evaluation of Cu/SAPO-34 Catalysts for NH3-SCR 2: Solid-state Ion Exchange and One-pot Synthesis." Applied Catalysis. B, Environmental 162. PNNL-SA-99073. doi:10.1016/j.apcatb.2014.07.029
  • Gao F., M. Kollar, R.K. Kukkadapu, N.M. Washton, Y. Wang, J. Szanyi, and C.H. Peden. 2015. "Fe/SSZ-13 as an NH3-SCR Catalyst: A Reaction Kinetics and FTIR/Mössbauer Spectroscopic Study." Applied Catalysis. B, Environmental 164. PNNL-SA-104426. doi:10.1016/j.apcatb.2014.09.031
  • Gao F., N.M. Washton, Y. Wang, M. Kollar, J. Szanyi, and C.H. Peden. 2015. "Effects of Si/Al Ratio on Cu/SSZ-13 NH3-SCR Catalysts: Implications for the active Cu species and the Roles of Brønsted Acidity." Journal of Catalysis 331. PNNL-SA-112409. doi:10.1016/j.jcat.2015.08.004
  • Gao F., Y. Wang, M. Kollar, N.M. Washton, J. Szanyi, and C.H. Peden. 2015. "A Comparative Kinetics Study between Cu/SSZ-13 and Fe/SSZ-13 SCR Catalysts." Catalysis Today 258, no. Part 2:347-358. PNNL-SA-106260. doi:10.1016/j.cattod.2015.01.025
  • Gao F., Y. Wang, N.M. Washton, M. Kollar, J. Szanyi, and C.H. Peden. 2015. "Effects of Alkali and Alkaline Earth Cocations on the Activity and Hydrothermal Stability of Cu/SSZ-13 NH3-SCR Catalysts." ACS Catalysis 5, no. 11:6780-6791. PNNL-SA-111791. doi:10.1021/acscatal.5b01621
  • Kovarik L., M.E. Bowden, D. Shi, N.M. Washton, A. Anderson, J.Z. Hu, and J. Lee, et al. 2015. "Unraveling the Origin of Structural Disorder in High Temperature Transition Al2O3: Structure of ?-Al2O3." Chemistry of Materials 27, no. 20:7042-7049. PNNL-SA-111174. doi:10.1021/acs.chemmater.5b02523
  • Levitskaia T.G., A. Andersen, S. Chatterjee, G.B. Hall, E.D. Walter, and N.M. Washton. 2015. Spectroscopic Properties of Tc(I) Tricarbonyl Species Relevant to the Hanford Tank Waste. PNNL-25000. Richland, WA: Pacific Northwest National Laboratory. Spectroscopic Properties of Tc(I) Tricarbonyl Species Relevant to the Hanford Tank Waste
  • Loring J.S., J. Chen, P. Benezeth Ep Gisquet, O. Qafoku, E.S. Ilton, N.M. Washton, and C.J. Thompson, et al. 2015. "Evidence for Carbonate Surface Complexation during Forsterite Carbonation in Wet Supercritical Carbon Dioxide." Langmuir 31, no. 27:7533-7543. PNNL-SA-110896. doi:10.1021/acs.langmuir.5b01052
  • Loring J.S., J. Chen, P. Benezeth, O. Qafoku, E.S. Ilton, N.M. Washton, and C.J. Thompson, et al. 2015. "Evidence for Carbonate Surface Complexation during Forsterite Carbonation in Wet Supercritical Carbon Dioxide." Langmuir 31, no. 27:7533-7543. PNNL-SA-109630. doi:10.1021/acs.langmuir.5b01052
  • Mccloy J.S., N.M. Washton, P.L. Gassman, J. Marcial, J.L. Weaver, and R.K. Kukkadapu. 2015. "Nepheline crystallization in boron-rich alumino-silicate glasses as investigated by multi-nuclear NMR, Raman, & Mössbauer spectroscopies." Journal of Non-crystalline Solids 409. PNNL-SA-103049. doi:10.1016/j.jnoncrysol.2014.11.013


  • Levitskaia T.G., B.M. Rapko, A. Anderson, J.M. Peterson, S. Chatterjee, E.D. Walter, and H.M. Cho, et al. 2014. Speciation and Oxidative Stability of Alkaline Soluble, Non-Pertechnetate Technetium. PNNL-23654; EMSP-RPT-024 Rev0. Richland, WA: Pacific Northwest National Laboratory. Speciation and Oxidative Stability of Alkaline Soluble, Non-Pertechnetate Technetium
  • Mueller K.T., R.L. Sanders, and N.M. Washton. 2014. "Clay Minerals." In eMagRes, edited by R Wasylishen, DM Grant and RK Harris. 13-28. Hoboken, New Jersey:Wiley Interscience. PNNL-SA-101698.


  • Baer D.R., M.H. Engelhard, G.E. Johnson, J. Laskin, J. Lai, K.T. Mueller, and P. Munusamy, et al. 2013. "Surface Characterization of Nanomaterials and Nanoparticles: important needs and challenging opportunities." Journal of Vacuum Science and Technology A--Vacuum, Surfaces and Films 31, no. 5:Article No. 050820. PNNL-SA-95071. doi:10.1116/1.4818423
  • Baer D.R., S.E. Baker, N.M. Washton, and B.E. Linggi. 2013. Status Report on the Development of Research Campaigns. PNNL-22924. Richland, WA: Pacific Northwest National Laboratory. Status Report on the Development of Research Campaigns
  • Gao F., E.D. Walter, N.M. Washton, J. Szanyi, and C.H. Peden. 2013. "Synthesis and Evaluation of Cu-SAPO-34 Catalysts for Ammonia Selective Catalytic Reduction. 1. Aqueous Solution Ion Exchange." ACS Catalysis 3, no. 9:2083-2093. PNNL-SA-96586. doi:10.1021/cs4004672
  • McCloy J.S., B.J. Riley, A.S. Lipton, C.F. Windisch, N.M. Washton, M.J. Olszta, and C.P. Rodriguez. 2013. "Structure and Chemistry in Halide Lead-Tellurite Glasses." Journal of Physical Chemistry C 117, no. 7:3456-3466. PNNL-SA-91103. doi:10.1021/jp310820t
  • Mueller K.T., M. Pruski, N.M. Washton, and A.S. Lipton. 2013. Science Drivers and Technical Challenges for Advanced Magnetic Resonance. PNNL-22294. Richland, WA: Pacific Northwest National Laboratory. Science Drivers and Technical Challenges for Advanced Magnetic Resonance
  • Murphy K.A., N.M. Washton, J.V. Ryan, C.G. Pantano, and K.T. Mueller. 2013. "Solid-State NMR Examination of Alteration Layers on a Nuclear Waste Glasses." Journal of Non-crystalline Solids 369. PNNL-SA-92731. doi:10.1016/j.jnoncrysol.2013.03.021


  • Sanders R.L., N.M. Washton, and K.T. Mueller. 2012. "Atomic-level studies of the depletion in reactive sites during clay mineral dissolution." Geochimica et Cosmochimica Acta 92. PNNL-SA-76711. doi:10.1016/j.gca.2012.05.038