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Chemical & Biological Processing

Tim Bays

Tim Bays

Pacific Northwest National Laboratory
PO Box 999
Richland, WA 99352


Following his graduate work at the University of Idaho, Dr. Bays was a postdoc at PNNL, working on alkane oxidation under Dr. Donald Camaioni, and under Dr. John Linehan he examined organometallic species using time-resolved, step-scan FTIR. He departed PNNL in 1997 to accept a position as a faculty member at the United States Military Academy at West Point, NY. Dr. Bays taught general and advanced freshman chemistry, as well as organic and inorganic chemistry. He conducted research on the effects of increased carbon dioxide levels on marine microorganisms. Following his promotion to Associate Professor, Dr. Bays relocated to PNNL. Since his arrival in 2005, Dr. Bays has filled a variety of roles from researcher to project manager. He is currently an individual contributor to an Office of Vehicle Technologies Unconventional Fuels Project. Prior to his career in chemistry, Dr. Bays served on active duty with the US Navy from 1987-1992, and has since served as a drilling Navy Reservist, in a variety of units, most recently with the Office of Naval Research. During 2009-2010, Dr. Bays was mobilized by the Navy to Baghdad, Iraq as a member of General Raymond Odierno’s (Commanding General, United States Forces –Iraq) staff, where he served as a liaison between the US Embassy, the CG and the Government of Iraq.

PNNL Patents

Research Interests

  • Unconventional fuels, diesel, gasoline, and jet fuels; lubricants, sorbent materials, NMR, trace detection and analysis and homogeneious catalysis.

Education and Credentials

  • Postdoctoral Research Associate, Alkane Oxidation and Supercritical Fluid Photochemistry, Pacific Northwest National Laboratory
  • Ph.D., Organometallic Chemistry, University of Idaho
  • B.S., Chemistry, United States Naval Academy

PNNL Publications


  • Gaspar D.J., S.D. Phillips, E. Polikarpov, K.O. Albrecht, S.B. Jones, A. George, and A. Landera, et al. 2019. "Measuring and Predicting the Vapor Pressure of Gasoline Containing Oxygenates." Fuel 243. PNNL-SA-131615. doi:10.1016/j.fuel.2019.01.137
  • Grubel K., W. Chouyyok, D.J. Heldebrant, J.C. Linehan, and J.T. Bays. 2019. "Octane-On-Demand: Onboard Separation of Oxygenates from Gasoline." Energy and Fuels 33, no. 3:1869-1881. PNNL-SA-138442. doi:10.1021/acs.energyfuels.8b03781
  • Monroe E., J.M. Gladden, K.O. Albrecht, J.T. Bays, R.L. McCormick, R.W. Davis, and A. George. 2019. "Discovery of novel octane hyperboosting phenomenon in prenol biofuel/gasoline blends." Fuel 239. PNNL-SA-139224. doi:10.1016/j.fuel.2018.11.046
  • Olarte M.V., K.O. Albrecht, J.T. Bays, E. Polikarpov, B. Maddi, J.C. Linehan, and M.J. O'Hagan, et al. 2019. "Autoignition and Select Properties of Low Sample Volume Thermochemical Mixtures from Renewable Sources." Fuel 238. PNNL-SA-134830. doi:10.1016/j.fuel.2018.10.115


  • Chouyyok W., J.T. Bays, A.A. Gerasimenko, A.D. Cinson, R.G. Ewing, D.A. Atkinson, and R.S. Addleman. 2016. "Improved Explosive Collection and Detection with Rationally Assembled Surface Sampling Materials." RSC Advances 97. PNNL-SA-116210. doi:10.1039/C6RA20157A
  • Liu C., J. Sun, H.M. Brown, O.G. Marin-Flores, J.T. Bays, A.M. Karim, and Y. Wang. 2016. "Aqueous phase hydrodeoxygenation of polyols over Pd/WO3-ZrO2: Role of Pd-WO3 interaction and hydrodeoxygenation pathway." Catalysis Today 269. PNNL-SA-114761. doi:10.1016/j.cattod.2015.10.034
  • Mueller C.J., W.J. Cannella, J.T. Bays, T.J. Bruno, K. DeFabio, H. Dettman, and R. Gieleciak, et al. 2016. "Diesel Surrogate Fuels for Engine Testing and Chemical-Kinetic Modeling: Compositions and Properties." Energy and Fuels 30, no. 2:1445-1461. PNNL-SA-114639. doi:10.1021/acs.energyfuels.5b02879
  • Robinson J.W., Y. Zhou, J. Qu, J.T. Bays, and L. Cosimbescu. 2016. "Highly Branched Polyethylenes as Lubricant Viscosity and Friction Modifiers." Tribology Letters 109. PNNL-SA-119079. doi:10.1016/j.reactfunctpolym.2016.10.003


  • Priyadarshani N., B. Ginovska-Pangovska, J.T. Bays, J.C. Linehan, and W.J. Shaw. 2015. "Photoswitching a Molecular Catalyst to Regulate CO2 Hydrogenation." Dalton Transactions 44, no. 33:14854-14864. PNNL-SA-109951. doi:10.1039/c5dt01649e
  • Robinson J.W., P. Bhattacharya, J. Qu, J.T. Bays, and L. Cosimbescu. 2015. "Investigations of non-linear polymers as high performance lubricant additives." In Proceedings of the 249th ACS National Meeting and Exhibition, March 22-26, 2015, Denver, Colorado. Energy & Fuels Preprints, 60, 185. Washington, District Of Columbia:American Chemical Society. PNNL-SA-106487.


  • Bays J.T., and D.L. King. 2014. "Unconventional Hydrocarbon Fuels." In FY 2013 Progress Report for Fuel & Lubricant Technologies: Energy Efficiencey and Rnewable Energy Vehicle Technologies Office, edited by K Stork. IV 21- IV 26. Washington Dc:Department of Energy. PNNL-23080.
  • Bays J.T., N. Priyadarshani, M.S. Jeletic, E. Hulley, D.L. Miller, J.C. Linehan, and W.J. Shaw. 2014. "The Influence of the Second and Outer Coordination Spheres on Rh(diphosphine)2 CO2 Hydrogenation Catalysts." ACS Catalysis 4, no. 10:3663-3670. PNNL-SA-103717. doi:10.1021/cs5009199


  • Bays J.T., and D.L. King. 2013. A NMR-Based Carbon-Type Analysis of Diesel Fuel Blends From Various Sources. PNNL-22472. Richland, WA: Pacific Northwest National Laboratory. A NMR-Based Carbon-Type Analysis of Diesel Fuel Blends From Various Sources
  • King D.L., and J.T. Bays. 2013. "Unconventional Hydrocarbon Fuel." In FY 2012 Progress Report for Fuel & Lubricant Technologies: Energy Efficiency and Renewable Energy, Vehicle Technologies Office, edited by K Stork. IV 26-IV 31. Washington Dc:Department of Energy. PNNL-22118.



  • Fernandez C.A., J. Roberts, E.M. Hoppes, G.E. Fryxell, C.M. Wang, J.T. Bays, and M.G. Warner, et al. 2009. "Effect of the Ligand Shell Composition on the Dispersibility and Transport of Gold Nanocrystals in Near Critical Solvents." Langmuir 25, no. 9:4900-4906. PNWD-SA-8342. doi:10.1021/la804058x
  • Fernandez C.A., J. Roberts, E.M. Hoppes, R.J. Wiacek, G.E. Fryxell, J.T. Bays, and M.G. Warner, et al. 2009. "Advancements Toward the Greener Processing of Engineered Nanomaterials -- Effect of Core Size on the Dispersibility and Transport of Gold Nanocrystals in Near-Critical Solvents." Small 5, no. 8:961-969. PNWD-SA-8223. doi:10.1002/smll.200801207


  • Fernandez C.A., E.M. Hoppes, J.G. Bekhazi, C.M. Wang, R.J. Wiacek, M.G. Warner, and G.E. Fryxell, et al. 2008. "Tuning and Quantifying the Dispersibility of Gold Nanocrystals in Liquid and Supercritical Solvents." Journal of Physical Chemistry C 112, no. 36:13947-13957. PNWD-SA-8129. doi:10.1021/jp8038237


  • Camaioni D.M., J.T. Bays, W.J. Shaw, J.C. Linehan, and J.C. Birnbaum. 2001. "Radical and Non-Radical Mechanisms for Alkane Oxidations by Hydrogen Peroxide-Trifluoroacetic Acid." Journal of Organic Chemistry 66, no. 3:789-795. PNNL-SA-33204. doi:10.1021/jo005617d
  • Linehan J.C., C.R. Yonker, R.S. Addleman, T. Autrey, J.T. Bays, T.E. Bitterwolf, and J.L. Daschbach. 2001. "Solvent Study of the Kinetics of Molybdenum Radical Self-Termination." Organometallics 20, no. 3:401-407. PNNL-SA-34196.


  • Linehan J.C., C.R. Yonker, J.T. Bays, T. Autrey, T.E. Bitterwolf, and S. Gallagher. 1999. "A Kinetic Study of the Thermal Loss of Ethylene from CpNb(CO)(3)(eta(2)-C2H4) in Supercritical Fluid Solvents." Journal of the American Chemical Society 120, no. 23:5826-5827. PNNL-SA-29520.

Chemical & Biological Processing

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