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Andrew A. Herzing
Researcher at National Institute of Standards and Technology
Publications - 143
Citations - 11244
Andrew A. Herzing is an academic researcher from National Institute of Standards and Technology. The author has contributed to research in topics: Catalysis & Scanning transmission electron microscopy. The author has an hindex of 41, co-authored 138 publications receiving 10088 citations. Previous affiliations of Andrew A. Herzing include Cardiff University & Lehigh University.
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Journal ArticleDOI
Solvent-Free Oxidation of Primary Alcohols to Aldehydes Using Au-Pd/TiO2 Catalysts
Dan I. Enache,Jennifer K. Edwards,Philip Landon,Benjamin Solsona-Espriu,Albert Frederick Carley,Andrew A. Herzing,Masashi Watanabe,Christopher J. Kiely,David W. Knight,Graham J. Hutchings +9 more
TL;DR: It is shown that Au/Pd-TiO2 catalysts give very high turnover frequencies (up to 270,000 turnovers per hour) for the oxidation of alcohols, including primary alkyl alcohols and the addition of Au to Pd nanocrystals improved the overall selectivity.
Journal ArticleDOI
Identification of Active Gold Nanoclusters on Iron Oxide Supports for CO Oxidation
Andrew A. Herzing,Christopher J. Kiely,Albert Frederick Carley,Philip Landon,Graham J. Hutchings +4 more
TL;DR: High catalytic activity for carbon monoxide oxidation is correlated with the presence of bilayer clusters that are ∼0.5 nanometer in diameter and contain only ∼10 gold atoms, consistent with that demonstrated previously with the use of model catalyst systems.
Journal ArticleDOI
Switching Off Hydrogen Peroxide Hydrogenation in the Direct Synthesis Process
Jennifer K. Edwards,Benjamín Solsona,Edwin Ntainjua N,Albert Frederick Carley,Andrew A. Herzing,Andrew A. Herzing,Christopher J. Kiely,Graham J. Hutchings +7 more
TL;DR: It is shown that acid pretreatment of a carbon support for gold-palladium alloy catalysts switches off the decomposition of H2O2, and the acid-pretreated catalysts give high yields of H 2O2 with hydrogen selectivities greater than 95%.
Journal ArticleDOI
Electron Vortex Beams with High Quanta of Orbital Angular Momentum
Benjamin J. McMorran,Amit Agrawal,Amit Agrawal,Ian M. Anderson,Andrew A. Herzing,Henri J. Lezec,Jabez J. McClelland,John Unguris +7 more
TL;DR: It is described how the electrons can exhibit such orbital motion in free space in the absence of any confining potential or external field, and how these beams can be applied to improved electron microscopy of magnetic and biological specimens.
Journal ArticleDOI
Direct synthesis of hydrogen peroxide from H2 and O2 using TiO2-supported Au-Pd catalysts
Jennifer K. Edwards,Benjamín Solsona,Philip Landon,Albert Frederick Carley,Andrew A. Herzing,Christopher J. Kiely,Graham J. Hutchings +6 more
TL;DR: In this paper, the direct synthesis of H2O2 at low temperature (2 °C) from H2 and O2 using TiO2-supported Au, Pd, and Au-Pd catalysts is discussed.