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Catalysts, Volume 7, Issue 11

November 2017 - 42 articles

Cover Story: Fine chemistry products such as agro-chemicals or pharmaceuticals require ketones and/or aldehydes as starting materials, which are obtained by alcohols oxidation. Nowadays it is imperative converting alcohols into the desired oxidized forms in a sustainable way. This paper is focused on the use of cheap EDTA functionalized magnetite type magnetic nanoparticles as reusable catalysts for the selective oxidation of alcohols to aldehydes or ketones in solvent-free medium and using the green alternative microwave energy source. Additional advantages of using these materials are their high accessible surface area and easy separation from the reaction medium by an external magnet. View Paper here.
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Articles (42)

  • Article
  • Open Access
40 Citations
7,656 Views
14 Pages

21 November 2017

An efficient and eco-friendly procedure for the synthesis of 1-amidoalkyl-2-naphthol and tetrahydrobenzo[b]pyran derivatives has been developed through a one-pot three-component condensation of aldehydes with 2-naphthol and amides, or with malononitr...

  • Article
  • Open Access
11 Citations
6,020 Views
12 Pages

Polyelectrolyte Complex Beads by Novel Two-Step Process for Improved Performance of Viable Whole-Cell Baeyer-Villiger Monoxygenase by Immobilization

  • Tomáš Krajčovič,
  • Marek Bučko,
  • Alica Vikartovská,
  • Igor Lacík,
  • Lucia Uhelská,
  • Dušan Chorvát,
  • Vilém Neděla,
  • Eva Tihlaříková,
  • Martin Gericke and
  • Thomas Heinze
  • + 1 author

21 November 2017

A novel immobilization matrix for the entrapment of viable whole-cell Baeyer–Villiger monooxygenase was developed. Viable recombinant Escherichia coli cells overexpressing cyclohexanone monooxygenase were entrapped in polyelectrolyte complex beads pr...

  • Feature Paper
  • Review
  • Open Access
49 Citations
8,080 Views
23 Pages

Advances in Base-Free Oxidation of Bio-Based Compounds on Supported Gold Catalysts

  • Robert Wojcieszak,
  • Camila P. Ferraz,
  • Jin Sha,
  • Sarah Houda,
  • Liane M. Rossi and
  • Sébastien Paul

21 November 2017

The oxidation of bio-based molecules in general, and of carbohydrates and furanics in particular, is a highly attractive process. The catalytic conversion of renewable compounds is of high importance. Acids and other chemical intermediates issued fro...

  • Feature Paper
  • Review
  • Open Access
38 Citations
8,323 Views
19 Pages

20 November 2017

Modern experiments have offered alternative interpretations on the symmetry of chiral dirhodium(II) carboxylate complexes and its relationship to their level of enantioselectivity. So, this contribution is to provide an insight on how the knowledge a...

  • Feature Paper
  • Article
  • Open Access
13 Citations
7,051 Views
8 Pages

20 November 2017

Formic acid (FA) is considered as a potential durable energy carrier. It contains ~4.4 wt % of hydrogen (or 53 g/L) which can be catalytically released and converted to electricity using a proton exchange membrane (PEM) fuel cell. Although various ca...

  • Article
  • Open Access
20 Citations
5,313 Views
10 Pages

20 November 2017

Novel well-defined superparamagnetic Fe3O4@Bacilus subtilis composite (Fe3O4@B. subtilis SPMC) was synthesized through a facile electrostatic attraction method and used as a recyclable heterogeneous Fenton-like catalyst. With the presence of H2O2, Fe...

  • Article
  • Open Access
4 Citations
5,115 Views
15 Pages

Characteristics of NixFe1−xOy Electrocatalyst on Hematite as Photoanode for Solar Hydrogen Production

  • Chih-Ping Yen,
  • Yan-Jin Li,
  • Jyhpyng Wang,
  • Szu-yuan Chen and
  • Chung-Jen Tseng

20 November 2017

The use of hematite as the photoanode for photoelectrochemical hydrogen production by solar energy has been actively studied due to its abundance, stability, and adequate optical properties. Deposition of an electrocatalyst overlayer on the hematite...

  • Article
  • Open Access
17 Citations
6,459 Views
12 Pages

17 November 2017

An environment-friendly method of efficiently degrading refractory organics using SO4−• generated directly from a WO3 photoelectrode and a catalytic reaction of sulfate was proposed, in which the cycling process of SO42− → SO4−• → SO42− was achieved...

  • Review
  • Open Access
65 Citations
11,259 Views
24 Pages

Base Catalysis by Mono- and Polyoxometalates

  • Keigo Kamata and
  • Kosei Sugahara

16 November 2017

In sharp contrast with acid-, photo-, and oxidation-catalysis by polyoxometalates, base catalysis by polyoxometalates has scarcely been investigated. The use of polyoxometalates as base catalysts have very recently received much attention and has bee...

  • Review
  • Open Access
24 Citations
6,395 Views
43 Pages

15 November 2017

The rapidly growing field of chemical catalysis is dependent on analytical methods for non-destructive real-time monitoring of chemical reactions in complex systems such as emulsions, suspensions and gels, where most analytical techniques are limited...

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Catalysts - ISSN 2073-4344