Skip to Main Content U.S. Department of Energy
Fundamental and Computational Sciences Directorate

Staff information

Russell Tonkyn

Pacific Northwest National Laboratory
PO Box 999
MSIN: P7-01
Richland, WA 99352

PNNL Publications


  • Beiswenger TN, TL Myers, CS Brauer, YF Su, TA Blake, AB Ertel, RG Tonkyn, JE Szecsody, TJ Johnson, M Smith, and C Lanker. 2016. "Experimental Effects on IR Reflectance Spectra: Particle Size and Morphology." In Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XXII, April 17, 2016, Baltimore, Maryland. Proceedings of the SPIE, vol. 9840, ed. M Velez-Reyes and DW Messinger, p. Paper No. 98400I.  SPIE, Bellingham, WA.  doi:10.1117/12.2223909
  • Xu Y, CJ Dibble, NG Petrik, RS Smith, AG Joly, RG Tonkyn, BD Kay, and GA Kimmel. 2016. "A nanosecond pulsed laser heating system for studying liquid and supercooled liquid films in ultrahigh vacuum." Journal of Chemical Physics 144(16):Article No. 164201.  doi:10.1063/1.4947304


  • Myers TL, CS Brauer, YF Su, TA Blake, RG Tonkyn, AB Ertel, TJ Johnson, and RL Richardson. 2015. "Quantitative Reflectance Spectra of Solid Powders as a Function of Particle Size." Applied Optics 54(15):4863-4875.  doi:10.1364/AO.54.004863


  • Brauer CS, TJ Johnson, TA Blake, SW Sharpe, RL Sams, and RG Tonkyn. 2014. "The Northwest Infrared (NWIR) gas-phase spectral database of industrial and environmental chemicals: Recent updates." In Advanced Environmental, Chemical, and Biological Sensing Technologies XI, May 5, 2014, Baltimore, Maryland. Proceedings of the SPIE, vol. 9106, ed. T Vo-Dinh, RA Lieberman and GG Gauglitz, p. Paper No. 910604.  SPIE, Bellingham, WA.  doi:10.1117/12.2053591
  • Blake TA, TJ Johnson, RG Tonkyn, BM Forland, TL Myers, CS Brauer, and YF Su. 2014. "Quantitative Total and Diffuse Reflectance Laboratory Measurements for Remote, Standoff, and Point Sensing." In Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XV, May 5, 2014, Baltimore, Maryland. Proceedings of the SPIE, vol. 9073, ed. AW Fountain, p. Paper No. 907303.  SPIE, Bellingham, WA.  doi:10.1117/12.2054116


  • Gao F, ED Walter, EM Karp, JY Luo, RG Tonkyn, JH Kwak, J Szanyi, and CHF Peden. 2013. "Structure-Activity Relationships in NH3-SCR over Cu-SSZ-13 as Probed by Reaction Kinetics and EPR Studies." Journal of Catalysis 300(1):20-29.  doi:10.1016/j.jcat.2012.12.020
  • Sweet LE, DD Reilly, DG Abrecht, EC Buck, DE Meier, YF Su, CS Brauer, JM Schwantes, RG Tonkyn, JE Szecsody, TA Blake, and TJ Johnson. 2013. "Spectroscopic Studies of the Several Isomers of UO3." In Optics and Photonics for Counterterrorism, Crime Fighting and Defence IX; and Optical Materials and Biomaterials in Security and Defence Systems Technology X, September 23, 2013, Dresden, Germany. Proceedings of the SPIE , vol. 8901, ed. R Zamboni, et al, p. Paper No. 890107.  SPIE, Bellingham, WA.  doi:10.1117/12.2029408


  • Devarakonda MN, RG Tonkyn, and JH Lee. 2012. "Modeling Species Inhibition and Competitive Adsorption in Urea-SCR Catalysts." In SAE World Congress and Exhibition, April 24-26, 2012, Detroit, Michigan, pp. SAE Technical Paper 2012-01-1295.  SAE International, Warrendale, PA.  doi:10.4271/2012-01-1295
  • Johnson TJ, YF Su, KH Jarman, BM Kunkel, JC Birnbaum, AG Joly, EG Stephan, RG Tonkyn, RG Ewing, and GC Dunham. 2012. "Demonstrated Wavelength Portability of Raman Reference Data for Explosives and Chemical Detection." International Journal of Spectroscopy 2012:Article No. 297056.  doi:10.1155/2012/297056
  • Kwak JH, RG Tonkyn, DN Tran, D Mei, SJ Cho, L Kovarik, JH Lee, CHF Peden, and J Szanyi. 2012. "Size-dependent catalytic performance of CuO on ?-Al2O3: NO reduction versus NH3 oxidation." ACS Catalysis 2(7):1432-1440.  doi:10.1021/cs3002463
  • Peden CHF, JH Kwak, SD Burton, RG Tonkyn, DH Kim, JH Lee, HW Jen, G Cavattaio, Y Cheng, and C Lambert. 2012. "Possible Origin of Improved High Temperature Performance of Hydrothermally Aged Cu/Beta Zeolite Catalysts." Catalysis Today 184(1):245-251.  doi:10.1016/j.cattod.2011.11.008


  • Devarakonda MN, RG Tonkyn, DN Tran, JH Lee, and DR Herling. 2011. "Modeling Species Inhibition of NO Oxidation in Urea-SCR Catalysts for Diesel Engine NOx Control." Journal of Engineering for Gas Turbines and Power. 133(9):Article No. 092805. 
  • Josephson GB, RG Tonkyn, JG Frye, BJ Riley, and KG Rappe. 2011. Hybrid Plasma Reactor/Filter for Transportable Collective Protection Systems PNNL-20270, Pacific Northwest National Laboratory, Richland, WA. 
  • Kunkel BM, YF Su, RG Tonkyn, EG Stephan, AG Joly, JC Birnbaum, KH Jarman, and TJ Johnson. 2011. "Raman Database Considerations for Near-Infrared Systems." In Optics and Photonics for Counterterrorism and Crime Fighting VIII, September 19, 2011, Prague, Czech Republic. Proceedings of the SPIE, vol. 8189, ed. R Zamboni, et al, p. Article No. 818905.  SPIE, Bellingham, WA.  doi:10.1117/12.898368


  • Devarakonda MN, RG Tonkyn, and DR Herling. 2010. "Hydrocarbon Effect on a Fe-zeolite Urea-SCR Catalyst: An Experimental and Modeling Study." In Diesel Exhaust Emission Control, SP-2287: SAE 2010 World Congress & Exhibition, April, 2010, Detroit, Michigan, pp. Paper No.: 2010-01-1171.  SAE International, Warrendale, PA.  doi:10.4271/2010-01-1171
  • Devarakonda MN, RG Tonkyn, DN Tran, JH Lee, and DR Herling. 2010. "MODELING COMPETITIVE ADSORPTION IN UREA-SCR CATALYSTS FOR EFFECTIVE LOW TEMPERATURE NOX CONTROL." In Proceedings of ASME 2010 International Mechanical Engineering Congress and Exposition (IMECE 2010), pp. Paper No. IMECE 2010-39977.  ASME, New York, NY. 
  • Devarakonda MN, RG Tonkyn, DN Tran, JH Lee, and DR Herling. 2010. "Modeling Species Inhibition of NO oxidation in Urea-SCR Catalysts for Diesel Engine NOx Control." In Proceedings of the ASME 2010 Internal Combustion Engine Division Fall Technical Conference, pp. Paper No. ICEF2010-35054.  American Society of Mechanical Engineers, New York, NY. 
  • Kwak JH, RG Tonkyn, DH Kim, J Szanyi, and CHF Peden. 2010. "Excellent activity and selectivity of Cu-SSZ-13 in the selective catalytic reduction of NOx with NH3." Journal of Catalysis 275(2):187-190.  doi:10.1016/j.jcat.2010.07.031


  • Devarakonda MN, DH Kim, JH Kwak, JH Lee, CHF Peden, ML Stewart, J Szanyi, RG Tonkyn, DN Tran, A Zelenyuk, and DR Herling. 2009. "CLEERS Aftertreatment Modeling and Analysis." Chapter II.B.1 in FY 2009 Progress Report for Advanced Combustion Engine Research and Development, pp. 155-163.  Energy Efficiency and Renewable Energy, Washington, D.C.. 
  • Josephson GB, RG Tonkyn, KG Rappe, and JG Frye. 2009. Annual Report for Hybrid Plasma Reactor/Filter for Transportable Collective Protection Systems-Phase 1B PNNL-18497, Pacific Northwest National Laboratory, Richland, WA. 


  • Garrett BC, RG Tonkyn, and NB Avery. 2008. 2008 Summer Research Institute Interfacial and Condensed Phase Chemical Physics Annual Report PNNL-18160, Pacific Northwest National Laboratory, Richland, WA. 
  • Grieves GA, NG Petrik, J Herring-Captain, B Olanrewaju, A Aleksandrov, RG Tonkyn, SE Barlow, GA Kimmel, and TM Orlando. 2008. "Photoionization of Sodium Salt Solutions in a Liquid Jet." Journal of Physical Chemistry C 112(22):8359-8364.  doi:10.1021/jp7102534


  • Disselkamp RS, RG Tonkyn, YH Chin, and CHF Peden. 2006. "Developing Multiple-Site Kinetic Models in Catalysis Simulation: A Case Study of 02+2N0 ? 2 NO2 Oxidation-Reduction Chemistry on Pt(100) Catalyst Crystal Facets." Journal of Catalysis 238(1):1-5.  doi:10.1016/j.jcat.2005.11.031
  • Zhao H, RG Tonkyn, SE Barlow, BE Koel, and CHF Peden. 2006. "Catalytic oxidation of HCN over a 0.5% Pt/Al2O3 catalyst." Applied Catalysis. B, Environmental 65(2006):282-290.  doi:10.1016/j.apcatb.2006.02.009
  • Zhao H, RG Tonkyn, SE Barlow, CHF Peden, and BE Koel. 2006. "Fractional factorial study of HCN removal over a 0.5% Pt/Al2O3 catalyst: effects of temperature, gas flow rate, and reactant partial pressure ." Industrial and Engineering Chemistry Research 45(3):934-939.  doi:10.21/ie048777e
  • Tonkyn RG, RS Disselkamp, and CH Peden. 2006. "Nitrogen Release from a NOx Storage and Reduction Catalyst." Catalysis Today 114(1):94-101.  doi:10.1016/j.cattod.2006.02.005


  • Barlow SE, JH Kwak, CHF Peden, J Szanyi, RG Tonkyn, G Singh, K Stork, JW Hoard, B Cho, DJ Brooks, and S Nunn. 2004. "Plasma Catalysis for NOx Reduction from Light-Duty Diesel Vehicles." Chapter III.G. in Advanced Combustion Engine R&D: 2003 Annual Progress Report, ed. G Singh, pp. 129-136.  Department of Energy, Washington, DC. 
  • Barlow SE, JH Kwak, CHF Peden, J Szanyi, RG Tonkyn, K Howden, JW Hoard, B Cho, SJ Schmieg, DJ Brooks, S Nunn, and P Davis. 2004. "Plasma Catalysis for NOx Reduction from Light-Duty Diesel Vehicles." In Advanced Combustion Engine Research & Development, 2004 Annual Progress Report, pp. 180-183.  US Department of Energy, Energy Efficiency and Renewable Energy, Washington DC. 


  • Kaspar TC, AC Tuan, RG Tonkyn, WP Hess, JW Rogers, Jr., and Y Ono. 2003. "The Role of O(1D) in the Oxidation of Si(100)." Journal of Vacuum Science and Technology B--Microelectronics and Nanometer Structures 21(2):895-899. 
  • Tonkyn RG, SE Barlow, and J Hoard. 2003. "Reduction of NOx in Synthetic Diesel Exhaust via Two-Step Plasma-Catalysis Treatment." Applied Catalysis. B, Environmental 40(3):207-217. 
  • Hoard J, and RG Tonkyn. 2003. "Two-Stage Plasma-Catalysis for Diesel NOx Emission Control." Journal of Advanced Oxidation Technologies 6(2):158-165. 
  • Hoard JW, SJ Schmieg, DJ Brooks, CHF Peden, SE Barlow, and RG Tonkyn. 2003. "Dynamometer Evaluation of Plasma-Catalyst for Diesel NOx Reduction." In Proceedings of the 9th Diesel Engine Emission Reduction (DEER) Workshop, Newport, RI, August 24-28, 2003, p. 11 pages.  Department of Energy, Office of Energy Efficiency and Renewable Energy, Washington, DC. 


  • Yoon IS, AG Panov, RG Tonkyn, AC Ebeling, SE Barlow, and ML Balmer. 2002. "An examination of the role of plasma treatment for lean NOx reduction over sodium zeolite Y and gamma alumina: Part 1. Plasma assisted NOx reduction over NaY and Al2O3 ." Catalysis Today 72(3-4):243-250. 
  • Yoon S, AG Panov, RG Tonkyn, AC Ebeling, SE Barlow, and ML Balmer. 2002. "An examination of the role of plasma treatment for lean NOx reduction over sodium zeolite Y and gamma alumina Part 2. Formation of nitrogen." Catalysis Today 72(3-4):251-257. 


  • Barlow SE, AC Ebeling, GD Maupin, ML Balmer, AG Panov, CHF Peden, RG Tonkyn, K Epping, JW Hoard, B Cho, SJ Schmieg, D Brooks, S Nunn, and P Davis. 2001. "E. Plasma Catalysis for NOx Reduction from Light-Duty Diesel Vehicles." In FY 2001 Progress Report for Combustion and Emission Control for Advancd CIDI Engines, pp. 65-72.  US Department of Energy. Office of Transportation Technologies, Washington, D.C.. 
  • Panov AG, RG Tonkyn, ML Balmer, CHF Peden, A Malkin, and J Hoard. 2001. "Selective Reduction of NOx in Oxygen Rich Environment with Plasma-Assisted Catalysis: Role of Plasma and Reactive Intermediates." In Non-thermal plasma emission control systems : 2001 SAE Fuels and Lubricants Meeting and Exposition, SAE SP, vol. 1639, ed. Balmer, M.L.; Fisher, G.; Hoard, J., pp. 43-48.  The SAE, Warrendale, PA. 
  • Panov AG, ML Balmer, IS Yoon, AC Ebeling, RG Tonkyn, and SE Barlow. 2001. "Effect of Simulated Diesel Exhaust Gas Composition and Temperature on NOx Reduction of Alumina and Zeolite Catalysts in Combination with Non-Thermal Plasma." In International Fuel and Lubricants Meeting and Exposition (paper no. 2000-01-2964).  SAE International, Warrendale, PA. 


  • Tonkyn RG, IS Yoon, SE Barlow, AG Panov, A Kolwaite, and ML Balmer. 2000. "Lean NOx Reduction in Two Stages: Non-thermal Plasma Followed by Heterogeneous Catalysis." In Non-thermal plasma, pp. 35-42.  Society of Automotive Engineers Technical Paper Series, Baltimore, MD. 
  • Alexandrov AB, M Piacentini, RG Tonkyn, MT Sieger, N Zema, and TM Orlando. 2000. "Electron-Stimulated Desorption of Iodine Atoms from KI(100): An Energy and Temperature Dependent Study." Surface Science 451(1-3):208-213. 

Science at PNNL

Core Research Areas

User Facilities

Centers & Institutes

Research Highlights

View All Research Highlights & Staff Accomplishments

RSS Feed