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Energy and Environment Directorate

Vanessa Dagle

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


Dr. Lebarbier’s research interests are in the area of heterogeneous catalysis and chemical process development. Her current research activities include the one-step thermochemical conversion of syngas to fuels, catalytic tar and methane reforming for biomass derived syngas clean up and the upgrading of pyrolysis bio-oils. Experience with other various catalytic chemical processes include: 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

  • Syngas to distillate fuels
  • Steam reforming of alcohols for hydrogen production
  • Dehydration of sugar alcohols
  • CO methanation for synthetic natural gas production
  • Catalytic fast pyrolysis: bio-oil upgrading
  • Tars reforming

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, 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



  • 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