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Article
A US perspective on closing the carbon cycle to defossilize difficult-to-electrify segments of our economy
Electrification to reduce or eliminate greenhouse gas emissions is essential to mitigate climate change. However, a substantial portion of our manufacturing and transportation infrastructure will be difficult ...
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Article
The role of surface hydroxyls in the entropy-driven adsorption and spillover of H2 on Au/TiO2 catalysts
Hydrogen spillover involves the migration of H atom equivalents from metal nanoparticles to a support. While well documented, H spillover is poorly understood and largely unquantified. Here we measure weak, re...
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Article
Active-site isolation in intermetallics enables precise identification of elementary reaction kinetics during olefin hydrogenation
Connecting active-site chemistry with observed macroscopic kinetic behaviour is required to rationally design active sites of heterogeneous catalysts. Isolated active sites limit co-adsorption complexities, wh...
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Article
Atomic control of active-site ensembles in ordered alloys to enhance hydrogenation selectivity
Intermetallic compounds offer unique opportunities for atom-by-atom manipulation of catalytic ensembles through precise stoichiometric control. The (Pd, M, Zn) γ-brass phase enables the controlled synthesis of...
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Article
Open AccessEffects of chloride ions in acid-catalyzed biomass dehydration reactions in polar aprotic solvents
The use of polar aprotic solvents in acid-catalyzed biomass conversion reactions can lead to improved reaction rates and selectivities. We show that further increases in catalyst performance in polar aprotic s...
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Article
Molecular Surface Science, Nanomaterials & Catalysis: Symposium in Honor of Gabor Somorjai at 80
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Article
Evaluating differences in the active-site electronics of supported Au nanoparticle catalysts using Hammett and DFT studies
Supported metal catalysts, which are composed of metal nanoparticles dispersed on metal oxides or other high-surface-area materials, are ubiquitous in industrially catalysed reactions. Identifying and characte...
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Article
Controlling activity and selectivity using water in the Au-catalysed preferential oxidation of CO in H2
Industrial hydrogen production through methane steam reforming exceeds 50 million tons annually and accounts for 2–5% of global energy consumption. The hydrogen product, even after processing by the water–gas ...
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Article
Dependence of Gas-Phase Crotonaldehyde Hydrogenation Selectivity and Activity on the Size of Pt Nanoparticles (1.7–7.1 nm) Supported on SBA-15
The selectivity and activity for the hydrogenation of crotonaldehyde to crotyl alcohol and butyraldehyde was studied over a series of Pt nanoparticles (diameter of 1.7, 2.9, 3.6, and 7.1 nm). The nanoparticles...
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Article
Platinum nanoparticle encapsulation during hydrothermal growth of mesoporous oxides: Synthesis, characterization and catalytic properties
A synthetic method for the design of heterogeneous catalysts incorporating monodisperse platinum nanoparticles into ordered mesoporous oxide frameworks has been developed. Nanoparticles were synthesized in sol...
