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Amit Gokhale

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Papers by Amit Gokhale

Research paper thumbnail of Production of renewable lubricants via self-condensation of methyl ketones

Green Chemistry, 2016

Self-condensation of biomass-derived methyl ketones catalyzed by solid bases or acids produces co... more Self-condensation of biomass-derived methyl ketones catalyzed by solid bases or acids produces corresponding cyclic trimers exclusively in excellent yields. Hydrogenated versions of such trimers can be good lubricants.

Research paper thumbnail of Selectivity tuning over monometallic and bimetallic dehydrogenation catalysts: effects of support and particle size

Catalysis Science & Technology

Spectroscopic, kinetic and theoretical insights guide the design of PdCu dehydrogenation catalysts.

Research paper thumbnail of Hybrid Biological–Chemical Approach Offers Flexibility and Reduces the Carbon Footprint of Biobased Plastics, Rubbers, and Fuels

ACS Sustainable Chemistry & Engineering

Research paper thumbnail of Novel Strategies for the Production of Fuels, Lubricants, and Chemicals from Biomass

Accounts of Chemical Research

Research paper thumbnail of Production of Fuels and Chemicals from Biomass: Condensation Reactions and Beyond

Research paper thumbnail of Integrated catalytic sequences for catalytic upgrading of bio-derived carboxylic acids to fuels, lubricants and chemical feedstocks

Sustainable Energy Fuels

We describe catalytic sequences for converting biomass-derived carboxylic acids, to fuels and lub... more We describe catalytic sequences for converting biomass-derived carboxylic acids, to fuels and lubricants that are compatible with the existing energy infrastructure.

Research paper thumbnail of Production of Biomass-Based Automotive Lubricants via Reductive Etherification

Research paper thumbnail of ABE Condensation over Monometallic Catalysts: Catalyst Characterization and Kinetics

Research paper thumbnail of Mechanism of the Water Gas Shift Reaction on Pt:  First Principles, Experiments, and Microkinetic Modeling

The Journal of Physical Chemistry C, 2008

The research described in this product was performed in part in the Environmental Molecular Scien... more The research described in this product was performed in part in the Environmental Molecular Sciences Laboratory, a national scientific user facility sponsored by the Department of Energy's Office of Biological and Environmental Research and located at Pacific Northwest National Laboratory. We present a microkinetic model as well as experimental data for the low-temperature water gas shift (WGS) reaction catalyzed by

Research paper thumbnail of Carbonaceous material for purifying lignocellulosic oligomers

Research paper thumbnail of From Sugars to Wheels: The Conversion of Ethanol to 1,3-Butadiene over Metal-Promoted Magnesia-Silicate Catalysts

Research paper thumbnail of A theoretical comparative study of the surfactant effect of Sb and Bi on GaN growth

Journal of Crystal Growth, May 1, 2007

Research paper thumbnail of Synergistic Effects in Bimetallic Palladium–Copper Catalysts Improve Selectivity in Oxygenate Coupling Reactions

Journal of the American Chemical Society, 2016

Research paper thumbnail of Purification Methods and Systems Related to Renewable Materials and Biofuels Production

Research paper thumbnail of Method for extracting organic compounds from aqueous mixtures

Research paper thumbnail of Upgrading Lignocellulosic Products to Drop-In Biofuels via Dehydrogenative Cross-Coupling and Hydrodeoxygenation Sequence

Research paper thumbnail of Novel pathways for fuels and lubricants from biomass optimized using life-cycle greenhouse gas assessment

Proceedings of the National Academy of Sciences, 2015

Decarbonizing the transportation sector is critical to achieving global climate change mitigation... more Decarbonizing the transportation sector is critical to achieving global climate change mitigation. Although biofuels will play an important role in conventional gasoline and diesel applications, bioderived solutions are particularly important in jet fuels and lubricants, for which no other viable renewable alternatives exist. Producing compounds for jet fuel and lubricant base oil applications often requires upgrading fermentation products, such as alcohols and ketones, to reach the appropriate molecular-weight range. Ketones possess both electrophilic and nucleophilic functionality, which allows them to be used as building blocks similar to alkenes and aromatics in a petroleum refining complex. Here, we develop a method for selectively upgrading biomass-derived alkyl methyl ketones with >95% yields into trimer condensates, which can then be hydrodeoxygenated in near-quantitative yields to give a new class of cycloalkane compounds. The basic chemistry developed here can be tailor...

Research paper thumbnail of Role of lignin in reducing life-cycle carbon emissions, water use, and cost for United States cellulosic biofuels

Environmental science & technology, Jan 5, 2014

Cellulosic ethanol can achieve estimated greenhouse gas (GHG) emission reductions greater than 80... more Cellulosic ethanol can achieve estimated greenhouse gas (GHG) emission reductions greater than 80% relative to gasoline, largely as a result of the combustion of lignin for process heat and electricity in biorefineries. Most studies assume lignin is combusted onsite, but exporting lignin to be cofired at coal power plants has the potential to substantially reduce biorefinery capital costs. We assess the life-cycle GHG emissions, water use, and capital costs associated with four representative biorefinery test cases. Each case is evaluated in the context of a U.S. national scenario in which corn stover, wheat straw, and Miscanthus are converted to 1.4 EJ (60 billion liters) of ethanol annually. Life-cycle GHG emissions range from 4.7 to 61 g CO2e/MJ of ethanol (compared with ∼ 95 g CO2e/MJ of gasoline), depending on biorefinery configurations and marginal electricity sources. Exporting lignin can achieve GHG emission reductions comparable to onsite combustion in some cases, reduce li...

Research paper thumbnail of Atomic-Scale Design of Iron Fischer-Tropsch Catalysts; A Combined Computational Chemistry, Experimental, and Microkinetic Modeling Approach

Research paper thumbnail of Prediction of Experimental Methanol Decomposition Rates on Platinum from First Principles

Topics in Catalysis, 2006

Page 1. Prediction of experimental methanol decomposition rates on platinum from first principles... more Page 1. Prediction of experimental methanol decomposition rates on platinum from first principles Shampa Kandoi, Jeff Greeley, Marco A. Sanchez-Castillo, Steven T. Evans, Amit A. Gokhale, James A. Dumesic, and Manos Mavrikakis ...

Research paper thumbnail of Production of renewable lubricants via self-condensation of methyl ketones

Green Chemistry, 2016

Self-condensation of biomass-derived methyl ketones catalyzed by solid bases or acids produces co... more Self-condensation of biomass-derived methyl ketones catalyzed by solid bases or acids produces corresponding cyclic trimers exclusively in excellent yields. Hydrogenated versions of such trimers can be good lubricants.

Research paper thumbnail of Selectivity tuning over monometallic and bimetallic dehydrogenation catalysts: effects of support and particle size

Catalysis Science & Technology

Spectroscopic, kinetic and theoretical insights guide the design of PdCu dehydrogenation catalysts.

Research paper thumbnail of Hybrid Biological–Chemical Approach Offers Flexibility and Reduces the Carbon Footprint of Biobased Plastics, Rubbers, and Fuels

ACS Sustainable Chemistry & Engineering

Research paper thumbnail of Novel Strategies for the Production of Fuels, Lubricants, and Chemicals from Biomass

Accounts of Chemical Research

Research paper thumbnail of Production of Fuels and Chemicals from Biomass: Condensation Reactions and Beyond

Research paper thumbnail of Integrated catalytic sequences for catalytic upgrading of bio-derived carboxylic acids to fuels, lubricants and chemical feedstocks

Sustainable Energy Fuels

We describe catalytic sequences for converting biomass-derived carboxylic acids, to fuels and lub... more We describe catalytic sequences for converting biomass-derived carboxylic acids, to fuels and lubricants that are compatible with the existing energy infrastructure.

Research paper thumbnail of Production of Biomass-Based Automotive Lubricants via Reductive Etherification

Research paper thumbnail of ABE Condensation over Monometallic Catalysts: Catalyst Characterization and Kinetics

Research paper thumbnail of Mechanism of the Water Gas Shift Reaction on Pt:  First Principles, Experiments, and Microkinetic Modeling

The Journal of Physical Chemistry C, 2008

The research described in this product was performed in part in the Environmental Molecular Scien... more The research described in this product was performed in part in the Environmental Molecular Sciences Laboratory, a national scientific user facility sponsored by the Department of Energy's Office of Biological and Environmental Research and located at Pacific Northwest National Laboratory. We present a microkinetic model as well as experimental data for the low-temperature water gas shift (WGS) reaction catalyzed by

Research paper thumbnail of Carbonaceous material for purifying lignocellulosic oligomers

Research paper thumbnail of From Sugars to Wheels: The Conversion of Ethanol to 1,3-Butadiene over Metal-Promoted Magnesia-Silicate Catalysts

Research paper thumbnail of A theoretical comparative study of the surfactant effect of Sb and Bi on GaN growth

Journal of Crystal Growth, May 1, 2007

Research paper thumbnail of Synergistic Effects in Bimetallic Palladium–Copper Catalysts Improve Selectivity in Oxygenate Coupling Reactions

Journal of the American Chemical Society, 2016

Research paper thumbnail of Purification Methods and Systems Related to Renewable Materials and Biofuels Production

Research paper thumbnail of Method for extracting organic compounds from aqueous mixtures

Research paper thumbnail of Upgrading Lignocellulosic Products to Drop-In Biofuels via Dehydrogenative Cross-Coupling and Hydrodeoxygenation Sequence

Research paper thumbnail of Novel pathways for fuels and lubricants from biomass optimized using life-cycle greenhouse gas assessment

Proceedings of the National Academy of Sciences, 2015

Decarbonizing the transportation sector is critical to achieving global climate change mitigation... more Decarbonizing the transportation sector is critical to achieving global climate change mitigation. Although biofuels will play an important role in conventional gasoline and diesel applications, bioderived solutions are particularly important in jet fuels and lubricants, for which no other viable renewable alternatives exist. Producing compounds for jet fuel and lubricant base oil applications often requires upgrading fermentation products, such as alcohols and ketones, to reach the appropriate molecular-weight range. Ketones possess both electrophilic and nucleophilic functionality, which allows them to be used as building blocks similar to alkenes and aromatics in a petroleum refining complex. Here, we develop a method for selectively upgrading biomass-derived alkyl methyl ketones with >95% yields into trimer condensates, which can then be hydrodeoxygenated in near-quantitative yields to give a new class of cycloalkane compounds. The basic chemistry developed here can be tailor...

Research paper thumbnail of Role of lignin in reducing life-cycle carbon emissions, water use, and cost for United States cellulosic biofuels

Environmental science & technology, Jan 5, 2014

Cellulosic ethanol can achieve estimated greenhouse gas (GHG) emission reductions greater than 80... more Cellulosic ethanol can achieve estimated greenhouse gas (GHG) emission reductions greater than 80% relative to gasoline, largely as a result of the combustion of lignin for process heat and electricity in biorefineries. Most studies assume lignin is combusted onsite, but exporting lignin to be cofired at coal power plants has the potential to substantially reduce biorefinery capital costs. We assess the life-cycle GHG emissions, water use, and capital costs associated with four representative biorefinery test cases. Each case is evaluated in the context of a U.S. national scenario in which corn stover, wheat straw, and Miscanthus are converted to 1.4 EJ (60 billion liters) of ethanol annually. Life-cycle GHG emissions range from 4.7 to 61 g CO2e/MJ of ethanol (compared with ∼ 95 g CO2e/MJ of gasoline), depending on biorefinery configurations and marginal electricity sources. Exporting lignin can achieve GHG emission reductions comparable to onsite combustion in some cases, reduce li...

Research paper thumbnail of Atomic-Scale Design of Iron Fischer-Tropsch Catalysts; A Combined Computational Chemistry, Experimental, and Microkinetic Modeling Approach

Research paper thumbnail of Prediction of Experimental Methanol Decomposition Rates on Platinum from First Principles

Topics in Catalysis, 2006

Page 1. Prediction of experimental methanol decomposition rates on platinum from first principles... more Page 1. Prediction of experimental methanol decomposition rates on platinum from first principles Shampa Kandoi, Jeff Greeley, Marco A. Sanchez-Castillo, Steven T. Evans, Amit A. Gokhale, James A. Dumesic, and Manos Mavrikakis ...

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