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Richard M Crooks - One of the best experts on this subject based on the ideXlab platform.

  • titania supported pdau bimetallic catalysts prepared from dendrimer encapsulated nanoparticle precursors
    Journal of the American Chemical Society, 2005
    Co-Authors: Robert W J Scott, Orla M Wilson, Wayne D Goodman, C Sivadinarayana, Richard M Crooks
    Abstract:

    We report the synthesis, characterization, and catalytic activity of titania-supported bimetallic PdAu particles prepared using dendrimer-encapsulated nanoparticle (DEN) precursors. Single-particle energy-dispersive spectroscopy indicates a Homogeneous Distribution of bimetallic nanoparticles having compositions closely related to the metal-ion ratios used to prepare the DEN precursors. The catalytic activity of the supported PdAu catalysts was compared to that of supported Pd-only and Au-only catalysts; the enhanced CO oxidation activity of the PdAu catalysts is indicative of a synergetic bimetallic interaction.

  • titania supported pdau bimetallic catalysts prepared from dendrimer encapsulated nanoparticle precursors
    Journal of the American Chemical Society, 2005
    Co-Authors: Robert W J Scott, Orla M Wilson, Wayne D Goodman, C Sivadinarayana, Richard M Crooks
    Abstract:

    We report the synthesis, characterization, and catalytic activity of titania-supported bimetallic PdAu particles prepared using dendrimer-encapsulated nanoparticle (DEN) precursors. Single-particle energy-dispersive spectroscopy indicates a Homogeneous Distribution of bimetallic nanoparticles having compositions closely related to the metal-ion ratios used to prepare the DEN precursors. The catalytic activity of the supported PdAu catalysts was compared to that of supported Pd-only and Au-only catalysts; the enhanced CO oxidation activity of the PdAu catalysts is indicative of a synergetic bimetallic interaction.

Robert W J Scott - One of the best experts on this subject based on the ideXlab platform.

  • titania supported pdau bimetallic catalysts prepared from dendrimer encapsulated nanoparticle precursors
    Journal of the American Chemical Society, 2005
    Co-Authors: Robert W J Scott, Orla M Wilson, Wayne D Goodman, C Sivadinarayana, Richard M Crooks
    Abstract:

    We report the synthesis, characterization, and catalytic activity of titania-supported bimetallic PdAu particles prepared using dendrimer-encapsulated nanoparticle (DEN) precursors. Single-particle energy-dispersive spectroscopy indicates a Homogeneous Distribution of bimetallic nanoparticles having compositions closely related to the metal-ion ratios used to prepare the DEN precursors. The catalytic activity of the supported PdAu catalysts was compared to that of supported Pd-only and Au-only catalysts; the enhanced CO oxidation activity of the PdAu catalysts is indicative of a synergetic bimetallic interaction.

  • titania supported pdau bimetallic catalysts prepared from dendrimer encapsulated nanoparticle precursors
    Journal of the American Chemical Society, 2005
    Co-Authors: Robert W J Scott, Orla M Wilson, Wayne D Goodman, C Sivadinarayana, Richard M Crooks
    Abstract:

    We report the synthesis, characterization, and catalytic activity of titania-supported bimetallic PdAu particles prepared using dendrimer-encapsulated nanoparticle (DEN) precursors. Single-particle energy-dispersive spectroscopy indicates a Homogeneous Distribution of bimetallic nanoparticles having compositions closely related to the metal-ion ratios used to prepare the DEN precursors. The catalytic activity of the supported PdAu catalysts was compared to that of supported Pd-only and Au-only catalysts; the enhanced CO oxidation activity of the PdAu catalysts is indicative of a synergetic bimetallic interaction.

Henry Franca Meier - One of the best experts on this subject based on the ideXlab platform.

  • gas solid flow in a ring baffled cfb riser numerical and experimental analysis
    Powder Technology, 2019
    Co-Authors: Vivien Rossbach, Jonathan Utzig, Rodrigo Koerich Decker, Dirceu Noriler, Cintia Soares, W P Martignoni, Henry Franca Meier
    Abstract:

    Abstract Circulating fluidized beds (CFBs) are used in a variety of industrial applications in which the Homogeneous Distribution of the solid phase is desirable. The core-annulus concentration profile is a characteristic of the flow profile in these devices and it leads to solids concentration near the wall. The use of airfoil-shaped ring-type baffles is an alternative to improve the solids Distribution in the cross section of CFB risers. In this study, the solids velocity and volume fraction profiles were obtained by PDA measurements and used to validate a computational fluid dynamics (CFD) model. Improvements in the solids Distribution are evaluated using a statistical coefficient of variation. The results demonstrate that the ring baffles increase the solids velocity near the wall and redirect the particles to the riser center. The more Homogeneous Distribution of the particles in the radial direction, shown by both the experimental and numerical solids volume fraction coefficients of variation, improves the gas-solids contact and consequently could increase the yield and selectivity of products of the chemical reactions. In addition, it was found that the insertion of the ring baffles caused a pressure drop reduction in the riser flow. This study enables the investigation of the solids Distribution in CFB risers in large scale.

Orla M Wilson - One of the best experts on this subject based on the ideXlab platform.

  • titania supported pdau bimetallic catalysts prepared from dendrimer encapsulated nanoparticle precursors
    Journal of the American Chemical Society, 2005
    Co-Authors: Robert W J Scott, Orla M Wilson, Wayne D Goodman, C Sivadinarayana, Richard M Crooks
    Abstract:

    We report the synthesis, characterization, and catalytic activity of titania-supported bimetallic PdAu particles prepared using dendrimer-encapsulated nanoparticle (DEN) precursors. Single-particle energy-dispersive spectroscopy indicates a Homogeneous Distribution of bimetallic nanoparticles having compositions closely related to the metal-ion ratios used to prepare the DEN precursors. The catalytic activity of the supported PdAu catalysts was compared to that of supported Pd-only and Au-only catalysts; the enhanced CO oxidation activity of the PdAu catalysts is indicative of a synergetic bimetallic interaction.

  • titania supported pdau bimetallic catalysts prepared from dendrimer encapsulated nanoparticle precursors
    Journal of the American Chemical Society, 2005
    Co-Authors: Robert W J Scott, Orla M Wilson, Wayne D Goodman, C Sivadinarayana, Richard M Crooks
    Abstract:

    We report the synthesis, characterization, and catalytic activity of titania-supported bimetallic PdAu particles prepared using dendrimer-encapsulated nanoparticle (DEN) precursors. Single-particle energy-dispersive spectroscopy indicates a Homogeneous Distribution of bimetallic nanoparticles having compositions closely related to the metal-ion ratios used to prepare the DEN precursors. The catalytic activity of the supported PdAu catalysts was compared to that of supported Pd-only and Au-only catalysts; the enhanced CO oxidation activity of the PdAu catalysts is indicative of a synergetic bimetallic interaction.

Wayne D Goodman - One of the best experts on this subject based on the ideXlab platform.

  • titania supported pdau bimetallic catalysts prepared from dendrimer encapsulated nanoparticle precursors
    Journal of the American Chemical Society, 2005
    Co-Authors: Robert W J Scott, Orla M Wilson, Wayne D Goodman, C Sivadinarayana, Richard M Crooks
    Abstract:

    We report the synthesis, characterization, and catalytic activity of titania-supported bimetallic PdAu particles prepared using dendrimer-encapsulated nanoparticle (DEN) precursors. Single-particle energy-dispersive spectroscopy indicates a Homogeneous Distribution of bimetallic nanoparticles having compositions closely related to the metal-ion ratios used to prepare the DEN precursors. The catalytic activity of the supported PdAu catalysts was compared to that of supported Pd-only and Au-only catalysts; the enhanced CO oxidation activity of the PdAu catalysts is indicative of a synergetic bimetallic interaction.

  • titania supported pdau bimetallic catalysts prepared from dendrimer encapsulated nanoparticle precursors
    Journal of the American Chemical Society, 2005
    Co-Authors: Robert W J Scott, Orla M Wilson, Wayne D Goodman, C Sivadinarayana, Richard M Crooks
    Abstract:

    We report the synthesis, characterization, and catalytic activity of titania-supported bimetallic PdAu particles prepared using dendrimer-encapsulated nanoparticle (DEN) precursors. Single-particle energy-dispersive spectroscopy indicates a Homogeneous Distribution of bimetallic nanoparticles having compositions closely related to the metal-ion ratios used to prepare the DEN precursors. The catalytic activity of the supported PdAu catalysts was compared to that of supported Pd-only and Au-only catalysts; the enhanced CO oxidation activity of the PdAu catalysts is indicative of a synergetic bimetallic interaction.