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Catalysts, Volume 7, Issue 3

March 2017 - 24 articles

Cover Story: Density functional theory (DFT) calculations have been used to explore the catalytic potential in olefin metathesis of in silico Ru-based complexes holding a phosphine-phosphonium ylide ligand, the electron-donating properties of which overtake those of the conventional N-heterocyclic carbene (NHC) and Cl– ligands together. Reaction intermediates coming from either complex are found to exhibit similar thermodynamic stability. Both complexes are shown to be activated through a dissociative mechanism, with a more exothermic first dissociation of the common PPh3 ligand from the ylide complex. The cationic character of the latter opens prospects for a new generation of catalysts turning in aqueous media. View this paper
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Articles (24)

  • Article
  • Open Access
16 Citations
6,261 Views
12 Pages
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Effect of Different Nano-Sized Silica Sols as Supports on the Structure and Properties of Cu/SiO2 for Hydrogenation of Dimethyl Oxalate

  • Chuancai Zhang,
  • Denghao Wang,
  • Mingyuan Zhu,
  • Feng Yu and
  • Bin Dai
Catalysts2017, 7(3), 75;https://doi.org/10.3390/catal7030075

25 February 2017

Cu/x-SiO2 catalysts with 4, 10, and 20 nm silica sols as supports was produced by ammonia evaporation method and characterized. Different nano-sized silica sols as supports significantly affected the structure and catalytic properties of the copper c...

Full Article
  • Article
  • Open Access
44 Citations
12,739 Views
29 Pages
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Catalytic Dehydration of Glycerol to Acrolein over a Catalyst of Pd/LaY Zeolite and Comparison with the Chemical Equilibrium

  • Israel Pala Rosas,
  • José Luis Contreras,
  • José Salmones,
  • Carlos Tapia,
  • Beatriz Zeifert,
  • Juan Navarrete,
  • Tamara Vázquez and
  • Diana Carolina García
Catalysts2017, 7(3), 73;https://doi.org/10.3390/catal7030073

25 February 2017

Glycerol dehydration to acrolein was studied with three catalysts using zeolite-Y. This zeolite in its protonic form (HY), with La (LaY) and Pd with La (Pd/LaY), was characterized by X-ray diffraction (XRD), Fourier-transform-infrared spectroscopy (F...

Full Article
  • Review
  • Open Access
75 Citations
20,958 Views
32 Pages
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The Suzuki–Miyaura Cross-Coupling as a Versatile Tool for Peptide Diversification and Cyclization

  • Tom Willemse,
  • Wim Schepens,
  • Herman W. T. van Vlijmen,
  • Bert U. W. Maes and
  • Steven Ballet
Catalysts2017, 7(3), 74;https://doi.org/10.3390/catal7030074

25 February 2017

The (site-selective) derivatization of amino acids and peptides represents an attractive field with potential applications in the establishment of structure–activity relationships and labeling of bioactive compounds. In this respect, bioorthogonal cr...

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  • Article
  • Open Access
17 Citations
8,424 Views
14 Pages
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Comparison of Efficiencies and Mechanisms of Catalytic Ozonation of Recalcitrant Petroleum Refinery Wastewater by Ce, Mg, and Ce-Mg Oxides Loaded Al2O3

  • Chunmao Chen,
  • Yu Chen,
  • Brandon A. Yoza,
  • Yuhao Du,
  • Yuxian Wang,
  • Qing X. Li,
  • Lanping Yi,
  • Shaohui Guo and
  • Qinghong Wang
Catalysts2017, 7(3), 72;https://doi.org/10.3390/catal7030072

24 February 2017

The use of catalytic ozonation processes (COPs) for the advanced treatment of recalcitrant petroleum refinery wastewater (RPRW) is rapidly expanding. In this study, magnesium (Mg), cerium (Ce), and Mg-Ce oxide-loaded alumina (Al2O3) were developed as...

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