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Vanessa Dagle

Vanessa Dagle

Pacific Northwest National Laboratory
PO Box 999
Richland, WA 99352
(509) 371-6510


Dr. Dagle came to the PNNL in 2007 and joined the Hydrocarbon Processing Group in 2009. She has over 10 years of experience in the area of heterogeneous catalysis and chemical process development. Her current research activities include the conversion of ethanol to butadiene and/ or butenes, ring-opening of (hydrotreated) bio- oils and the conversion of 2,3-butanediol to olefins mixture. Experience with other various catalytic chemical processes include: thermochemical conversion of syngas to fuels, catalytic tar and methane reforming for biomass derived syngas clean up, steam reforming of hydrocarbons and alcohols, selective CO methanation, water-gas-shift catalysis. Her work has benefited clientele in both the government and private industry arena and has resulted in numerous journal articles and presentations.

Research Interests

  • Biomass conversion to fuels and chemicals
  • Ethanol conversion to butadiene and/ or butenes
  • 2,3-Butanediol conversion to olefins mixture
  • Ring-opening of (hydrotreated) bio-oils
  • Methane conversion
  • Syngas to distillate fuels
  • Steam reforming of alcohols, methane, benzene

Education and Credentials

  • Ph.D. in Physical, Analytical and Theoretical Chemistry: (Laboratoire Catalyse et Spectroscopie) Caen, France
  • Master Degree II in Chemistry; DEA, University of Caen & Engineering school (ENSI), France
  • Master Degree I in Chemistry; Maitrise, Department of Chemistry, University of Caen, France

Awards and Recognitions

  • Recognition and Rewards Honoree, Key contributor award – Battelle 2009
  • Diplome d’Etudes Approfondies, 1 year grant-University of Caen, France, 2002-2003
  • Bourse MENRT, 3 years grant, Caen, France 2003-2006

PNNL Patents

PNNL Publications


  • Dagle V, MD Flake, TL Lemmon, J Saavedra Lopez, L Kovarik, and RA Dagle. 2018. "Effect of the SiO2 Support on the Catalytic Performance of Ag/ZrO2/SiO2 Catalysts for the Single-Bed Production of Butadiene from Ethanol." Applied Catalysis. B, Environmental 236:576-587.  doi:10.1016/j.apcatb.2018.05.055



  • Lebarbier VM, CD Smith, MD Flake, KO Albrecht, MJ Gray, KK Ramasamy, and RA Dagle. 2016. "Integrated Process for the Catalytic Conversion of Biomass-Derived Syngas into Transportation Fuels." Green Chemistry 18(7):1880-1891.  doi:10.1039/c5gc02298c
  • Lebarbier VM, RA Dagle, L Kovarik, A Genc, Y Wang, ME Bowden, H Wan, MD Flake, VA Glezakou, DL King, and RJ Rousseau. 2016. "Steam Reforming of Hydrocarbons from Biomass-Derived Syngas over MgAl2O4-Supported Transition Metals and Bimetallic IrNi Catalysts." Applied Catalysis. B, Environmental 184:142-152.  doi:10.1016/j.apcatb.2015.11.022
  • Smith CD, VM Lebarbier, MD Flake, KK Ramasamy, L Kovarik, ME Bowden, T Onfroy, and RA Dagle. 2016. "Conversion of Syngas-Derived C2+ Mixed Oxygenates to C3-C5 Olefins over ZnxZryOz Mixed Oxides Catalysts." Catalysis Today 6(7):2325-2316.  doi:10.1039/C5CY01261A
  • Xing R, VM Lebarbier, MD Flake, L Kovarik, KO Albrecht, CA Deshmane, and RA Dagle. 2016. "Steam Reforming of Fast Pyrolysis-Derived Aqueous Phase Oxygenates over Co, Ni, and Rh Metals Supported on MgAl2O4." Catalysis Today 269:166-174.  doi:10.1016/j.cattod.2015.11.046


  • Mei D, VM Lebarbier, R Xing, KO Albrecht, and RA Dagle. 2015. "Steam Reforming of Ethylene Glycol over MgAl2O4 Supported Rh, Ni, and Co Catalysts." ACS Catalysis 6(1):315-325.  doi:10.1021/acscatal.5b01666


  • Dagle RA, JA Lizarazo Adarme, VMC Lebarbier, MJ Gray, JF White, DL King, and DR Palo. 2014. "Syngas Conversion to Gasoline-Range Hydrocarbons over Pd/ZnO/Al2O3 and ZSM-5 Composite Catalyst System." Fuel Processing Technology 123:65-74.  doi:10.1016/j.fuproc.2014.01.041
  • Lebarbier Dagel VM, J Li, CE Taylor, JR, Y Wang, RA Dagle, CA Deshmane, and X Bao. 2014. Task 3.3: Warm Syngas Cleanup and Catalytic Processes for Syngas Conversion to Fuels Subtask 3: Advanced Syngas Conversion to Fuels PNNL-23207, Pacific Northwest National Laboratory, Richland, WA. 
  • Lebarbier Dagel VM, RA Dagle, J Li, CA Deshmane, CE Taylor, X Bao, and Y Wang. 2014. "Direct Conversion of Syngas-to-Hydrocarbons over Higher Alcohols Synthesis Catalysts Mixed with HZSM-5." Industrial and Engineering Chemistry Research 53(36):13928-13934.  doi:10.1021/ie502425d
  • Lebarbier VMC, RA Dagle, L Kovarik, KO Albrecht, XS Li, L Li, CE Taylor, X Bao, and Y Wang. 2014. "Sorption-Enhanced Synthetic Natural Gas (SNG) Production from Syngas: A Novel Process Combining CO Methanation, Water-Gas Shift, and CO2 Capture." Applied Catalysis. B, Environmental 144:223-232.  doi:10.1016/j.apcatb.2013.06.034
  • Mei D, VA Glezakou, VMC Lebarbier, L Kovarik, H Wan, KO Albrecht, MA Gerber, RJ Rousseau, and RA Dagle. 2014. "Highly Active and Stable MgAl2O4 Supported Rh and Ir Catalysts for Methane Steam Reforming: A Combined Experimental and Theoretical Study." Journal of Catalysis 316:11-23.  doi:10.1016/j.jcat.2014.04.021


  • Dagle RA, VM Lebarbier, KO Albrecht, J Li, CE Taylor, X Bao, and Y Wang. 2013. "Syngas Conversion to Hydrocarbon Fuels through Mixed Alcohol Intermediates." In 23rd North American Catalysis Society Meeting, June 2-7, 2013, Louisville, Kentucky, pp. Paper No. P-M-BRC-147.  North American Catalysis Society, N/A. 
  • Dagle RA, VMC Lebarbier, JA Lizarazo Adarme, DL King, Y Zhu, MJ Gray, SB Jones, MJ Biddy, RT Hallen, Y Wang, JF White, JE Holladay, and DR Palo. 2013. Single-Step Syngas-to-Distillates (S2D) Synthesis via Methanol and Dimethyl Ether Intermediates: Final ReportPNNL-22984, Pacific Northwest National Laboratory, Richland, WA. 
  • Howard CJ, RA Dagle, VMC Lebarbier, JE Rainbolt, L Li, and DL King. 2013. "Progress toward Biomass and Coal-Derived Syngas Warm Cleanup: Proof-of-Concept Process Demonstration of Multicontaminant Removal for Biomass Application." Industrial and Engineering Chemistry Research 52(24):8125-8138.  doi:10.1021/ie4004927
  • Liu C, AM Karim, VMC Lebarbier, D Mei, and Y Wang. 2013. "Vapor phase ketonization of acetic acid on ceria based metal oxides." Topics in Catalysis 56(18-20):1782-1789.  doi:10.1007/s11244-013-0114-2
  • Mei D, VMC Lebarbier, RJ Rousseau, VA Glezakou, KO Albrecht, L Kovarik, MD Flake, and RA Dagle. 2013. "Comparative Investigation of Benzene Steam Reforming over Spinel Supported Rh and Ir Catalysts." ACS Catalysis 3(6):1133-1143.  doi:10.1021/cs4000427


  • Lebarbier VMC, RA Dagle, L Kovarik, JA Lizarazo Adarme, DL King, and DR Palo. 2012. "Synthesis of Methanol and Dimethyl Ether from Syngas over Pd/ZnO/Al2O3 Catalysts." Catalysis Science & Technology 2(10):2116-2127.  doi:10.1039/C2CY20315D


  • Lebarbier VMC, AM Karim, MH Engelhard, Y Wu, BQ Xu, EJ Petersen, AK Datye, and Y Wang. 2011. "The Effect of Zn Addition on the Oxidation State of Cobalt in Co/ZrO2 Catalysts." ChemSusChem 4(11):1679-1684.  doi:10.1002/cssc.201100240
  • Lebarbier VMC, D Mei, DH Kim, A Andersen, JL Male, JE Holladay, RJ Rousseau, and Y Wang. 2011. "Effects of La2O3 on the mixed higher alcohols synthesis from syngas over Co catalysts: A combined theoretical and experimental study." Journal of Physical Chemistry C 115(35):17440-17451.  doi:10.1021/jp204003q


  • Halevi B, E Peterson, A DelaRiva, E Jeroro, VMC Lebarbier, Y Wang, JM Vohs, B Kiefer, EL Kunkes, M Havecker , M Behrens, R Schlogl, and AK Datye. 2010. "Aerosol-Derived Bimetallic Alloy Powders: Bridging the Gap." Journal of Physical Chemistry C 114(40):17181-17190.  doi:10.1021/jp103967x
  • Lebarbier VMC, RA Dagle, AK Datye, and Y Wang. 2010. "The effect of PdZn particle size on reverse-water-gas-shift reaction ." Applied Catalysis. A, General 379(1-2):3-6. 


  • Hyman MP, VMC Lebarbier, Y Wang, AK Datye, and JM Vohs. 2009. "A Comparison of the Reactivity of Pd Supported on ZnO(10(1)over-bar0) and ZnO(0001) ." Journal of Physical Chemistry C 113(17):7251-7259. 


  • Conant T, AM Karim, VMC Lebarbier, Y Wang, F Girgsdies, R Schlogl, and AK Datye. 2008. "Stability of bimetallic Pd-Zn catalysts for the steam reforming of methanol." Journal of Catalysis 257(1):64-70.  doi:10.1016/j.jcat.2008.04.018
  • Lebarbier VMC, RA Dagle, T Conant, JM Vohs, AK Datye, and Y Wang. 2008. "CO/FTIR Spectroscopic Characterization of Pd/ZnO/Al2O3 Catalysts for Methanol Steam Reforming." Catalysis Letters 122(3-4):223-227.  doi:10.1007/s10562-008-9407-7


  • Jeroro E, VMC Lebarbier, A Datye, Y Wang, and JM Vohs. 2007. "Interaction of CO with Surface PdZn Alloys." Surface Science 601(23):5546-5554.  doi:10.1016/j.susc.2007.09.031

Energy and Environment

Core Research Areas