个人简介

BS, PhD - Chemistry, University of Leeds, UK Post-Doctoral Study - California Institute of Technology

研究领域

Catalysis, Membranes

Research in the Herring group is generally in the area of Energy with a particular emphasis on Renewable Energy. We work at the interface of materials science and chemical engineering and most of our work is collaborative in nature the majority with the National Renewable Energy Laboratory, also in Golden. We focus in two sub-groups: Electrochemical and Photoelectrochemical Engineering: For solar energy to be exploited it must be converted into electricity and fuels, utilizing materials that can do this efficiently, with minimum expense, and with maximum durability. These materials need to be synthesized, characterized, and optimized. Furthermore, renewable energy is by its nature intermittent and not easily stored, so its conversion to chemical energy, hydrogen or other fuels, and its use in highly efficient fuel cells is an attractive scenario. We work extensively on polymer electrolyte fuel cells, both in component development (membranes and catalysts) and at the single fuel cell level. Thermochemical Conversion of Hydrocarbons: As crude oil becomes a scarce resource alternative sources of hydrocarbons need to be exploited, as in the immediate short term liquid fueled light cars and trucks remain the ubiquitous mode of transportation. The world still has enormous resources of bio-degraded crude oil with high energy densities but challenging flow properties for exploitation. Using advanced pyrolysis coupled with molecular beam mass spectrometry we are developing rapid screening techniques that may allow flow characteristics of the resource to be linked to chemical information. Biomass could potentially supply a significant amount of the worlds hydrocarbon fuel, however, by its very nature biomass derived hydrocarbons contain a significant amount of heteroatoms and are challenging to convert into a synthetic crude for subsequent reforming. We are now working to develop unit operations and catalysts that will convert biomass into reforamble hydrocarbon resources.

近期论文

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"Selective Hydroxylation of Hydrocarbons by Platinum Salts in Aqueous Media. Direct Conversion of Ethanol to Ethylene Glycol.", J.A.Labinger, A.M.Herring, and J.E.Bercaw, Adv. Chem. Ser.: Homogeneous Transition Metal Catalyzed Reactions, W.R.Moser and D.W.Slocum Ed.s, Washington, DC, 1992, 230, 221. "Oxidation of Hydrocarbons by Aqueous Platinum Salts: Mechanism and Selectivity.", J.A.Labinger, A.M.Herring, D.K.Lyon, G.A.Luinstra, J.E.Bercaw, I.T.Horv�th, and K.Eller, Organometallics, 1993, 12, 895. "Organometallic Methane Activation: Functionalization by Aqueous Platinum Complexes.", J.A.Labinger, J.E.Bercaw, G.A.Luinstra, D.K.Lyons, and A.M.Herring, Studies in Surface Science and Catalysis: Natural Gas Conversion II, H.E.Curry-Hyde and R.F.Howe, Ed.s, Elsevier, New York, 1994, 81, 515. "Synthesis and Characterization of Palladium Complexes Containing Tridentate Ligands with PXP (X= C, N, O, S, and As) Donor Sets and Their Evaluation as Electrochemical CO2 Reduction Catalysts.", B.D.Steffey, A.Miedaner, M.L.Maciejewski-Farmer, P.R.Bernatis, A.M.Herring, V.S.Allured, V.Carperos and D.L.DuBois, Organometallics, 1994, 13, 4844. "Synthesis and Characterization of Water-Soluble [Pd(triphosphine)(CH3CN)](BF4)2 Complexes for CO2 Reduction.", A.M.Herring, B.D.Steffey, A. Miedaner, S.A.Wander and D.L.DuBois, Inorg. Chem., 1995, 34, 1100. "Methane Partial Oxidation Over Vanadyl Pyrophosphate and the Effect of Fe and Cr Promoters on Selectivity", R.L.McCormick, G.O.Alptekin, A.M.Herring, T.R.Ohno and S.F.Dec, J.Catal., 1997, 172, 160. "In-situ Infrared Study of the Absorption of Nitric Oxide by 12-Tungstophosphoric Acid.", A.M.Herring* and R.L.McCormick, J. Phys. Chem. B, 1998, 102, 3175. "In-Situ and Temperature Programmed Desorption-Mass Spectrometry Study of NO Absorption and Decomposition By Silica Supported 12-Tungstophosphoric Acid.", R.L.McCormick, S.K.Boonrueng and A.M.Herring, Catalysis Today, 1998, 42, 145. "Methane Partial Oxidation over Unsupported and Silica Supported Iron Phosphate Catalysts: Influence of Recation Conditions and Co-Feeding of Water on Activity and Selectivity.", G.L.Alptekin, A.M.Herring, D.L.Williamson, T.R.Ohno, R.L.McCormick J. Catal. 1999, 181, 104. "In-Use Emmisions from Natural Gas Fueled Heavy-Duty Vehicles." M.S.Graboski, R.L.McCormick, T.L.Alleman, A.M.Herring and P.Nelson, SAE Tech. Pap. Ser. 1999, No. 1999011507. "A Study of Coking in an Ethylene Dichloride Cracker." A.Borsa, A.M.Herring, J.T.McKinnon, R.L.McCormick, S.Yamamoto, Y.Teraoka and Y.Natori, Ind.Eng.Chem.Res. 1999, 38, 4259. ”A Comparison of the Interaction with and/or Absorption of Nitric Oxide by the Heteropolytungstic Acids, H3PW12O40, H0.5Cs2.5PW12O40, HMgPW12O40, H8SiW11O38, H4SiW12O40 and H10CoW12O42.” A.M.Herring*, R.L.McCormick and S.K.Boonrueng, J. Phys. Chem. B, 2000, 104, 4653. ”Coke and Byproduct Formation during 1,2-Dichloroethane Pyrolysis in a Laboratory Tubular Reactor.”� A.Borsa, A.M.Herring, T.J.McKinnon, R.L.McCormick and G.H.Ko, Ind. Eng. Chem. Res., 2001, 40, 2428. “Impact of Biodiesel Source Material and Chemical Structure on Emissions of Criteria Pollutants from a Heavy-Duty Engine.” R.L.McCormick, M.S.Graboski, T.L.Alleman, A.M.Herring and K.S.Tyson, Environ.Sci.Technol., 2001, 35, 1742. “Detection of Reactive Intermediates during Laser Pyrolysis of Cellulose Char by Molecular Beam Mass Spectroscopy, Implications for the Formation of Polycyclic Aromatic Hydrocarbons.” A.M. Herring*, J.T. Mckinnon, D.E. Petrick, K.W. Gneshin, J. Filley, B.D. McClosky, J. Anal. Appl. Pyrol., 2003, 66, 165. “A Novel Method for the Templated Synthesis of Homogeneous Samples of Hollow Carbon Nano-Spheres from Cellulose Chars.” Andrew M. Herring,* J. Thomas McKinnon, Bryan D. McCloskey, Keith W. Gneshin, Ryan A. Pavelka,� Hans-Joachim Kleebe, and Darin J. Aldrich, submitted to J.Am.Chem.Soc., March 2003. �“Detection of Reactive Intermediates From and Characterization of Biomass Char by DRIFTS and Laser Pyrolysis Molecular Beam Mass Spectroscopy.”� Andrew M. Herring,* J. Thomas McKinnon, Keith W. Gneshin, Ryan Pavelka, David E. Petrick, Bryan D. McCloskey and Jonathan Filley, Submitted to Fuel, January, 2003. “Heteropoly Acids composites with Sulfonated or Unsulfonated Epoxies for High Temperature Proton Exchange Membrane Cells.” Mary Ann Sweikart, Andrew M. Herring,* John A. Turner, Steven F. Dec, D. L. Williamson, Bryan D. McCloskey, �Sukritthra R. Boonrueng, �Maria Sanchez, to be submitted to J.Electrochem.Soc, March 2003. �“Experiments and Modelling of the Temperature Evolution in the Pyrolysis of Biomass Char from CO2 Laser Heating.” D.E. Petrick, K.W. Gneshin, B.D. McCloskey, A.M. Herring, J.T. McKinnon, Revised version to be submitted to J. Anal. Appl. Pyrol., April, 2003. "Structure and Dynamics of Di-sodium Hydrogen 12-Phosphotungstic Acid.” S.F. Dec, A.M.Herring, To be submited to J. Phys. Chem. B., April, 2003.