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National Renewable Energy Laboratory

6 ARTICLES PUBLISHED IN JoVE

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Environment

High-throughput Screening of Recalcitrance Variations in Lignocellulosic Biomass: Total Lignin, Lignin Monomers, and Enzymatic Sugar Release
Stephen R. Decker 1, Robert W. Sykes 1, Geoffrey B. Turner 1, Jason S. Lupoi 1, Crissa Doepkke 1, Melvin P. Tucker 1, Logan A. Schuster 1, Kimberly Mazza 1, Michael E. Himmel 1, Mark F. Davis 1, Erica Gjersing 1
1BioEnergy Science Center, National Renewable Energy Laboratory

Plant cell wall structure and chemistry traits are evaluated to identify ideal feedstocks for biofuels and bio-materials. Standard methods have limitations when applied to large data sets. These high-throughput pretreatment, enzyme saccharification, and pyrolysis-molecular beam mass spectrometry methods compare large numbers of biomass samples with decreased experimental time and cost.

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Education

Determination of Carbonyl Functional Groups in Bio-oils by Potentiometric Titration: The Faix Method
Stuart Black 1, Jack R. Ferrell III 1
1National Bioenergy Center, National Renewable Energy Laboratory

Here we present a potentiometric titration technique for accurately quantifying carbonyl compounds in pyrolysis bio-oils.

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JoVE Journal

Temperature-programmed Deoxygenation of Acetic Acid on Molybdenum Carbide Catalysts
Connor P. Nash 1, Carrie A. Farberow 1, Jesse E. Hensley 1
1National Bioenergy Center, National Renewable Energy Laboratory

Presented here is a protocol for the operation of a micro-scale temperature-programmed reactor for evaluating the catalytic performance of molybdenum carbide during acetic acid deoxygenation.

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Chemistry

Synthesis of Platinum-nickel Nanowires and Optimization for Oxygen Reduction Performance
Shaun M. Alia 1, Bryan S. Pivovar 1
1Chemistry and Nanoscience Center, National Renewable Energy Laboratory

  The protocol describes the synthesis and electrochemical testing of platinum-nickel nanowires. Nanowires were synthesized by the galvanic displacement of a nickel nanowire template. Post-synthesis processing, including hydrogen annealing, acid leaching, and oxygen annealing were used to optimize nanowire performance and durability in the oxygen reduction reaction.

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Chemistry

Applying Dynamic Strain on Thin Oxide Films Immobilized on a Pseudoelastic Nickel-Titanium Alloy
Hanyu Zhang 1, Eric E. Benson 1, Kurt M. Van Allsburg 2, Elisa M. Miller 1, Drazenka Svedruzic 3
1Chemical and Nanoscience Center, National Renewable Energy Laboratory, 2Catalytic Carbon Transformation and Scale-Up Center, National Renewable Energy Laboratory, 3Biosciences Center, National Renewable Energy Laboratory

Dynamic, tensile strain is applied on TiO2 thin films to study the effects of strain on electrocatalysis, specifically proton reduction and water oxidation. TiO2 films are prepared by thermal treatment of the pseudo-elastic NiTi alloy (Nitinol).

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Engineering

Performing In Situ Closed-Cell Gas Reactions in the Transmission Electron Microscope
Kinga A. Unocic 1, Dale K. Hensley 1, Franklin S. Walden 2, Wilbur C. Bigelow 3, Michael B. Griffin 4, Susan E. Habas 4, Raymond R. Unocic 1, Lawrence F. Allard 5
1Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, 2Protochips Inc., 3Department of Materials Science & Engineering, University of Michigan, 4Catalytic Carbon Transformation & Scale-up, National Renewable Energy Laboratory, 5Materials Science & Technology Division, Oak Ridge National Laboratory

Here, we present a protocol for performing in situ TEM closed-cell gas reaction experiments while detailing several commonly used sample preparation methods.

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