Design, Synthesis and Applications of Homogeneous/Heterogeneous Oxidation Catalysts

A special issue of Catalysts (ISSN 2073-4344). This special issue belongs to the section "Catalytic Materials".

Deadline for manuscript submissions: 31 March 2025 | Viewed by 1464

Special Issue Editors

CICECO–Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
Interests: homogeneous and heterogeneous catalysis; hybrid organic-inorganic materials; bioorganometallic chemistry; development of carbon monoxide releasing molecules

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Guest Editor
CICECO–Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
Interests: homogeneous and heterogeneous oxidation catalytic processes; acid-base catalytic reactions; reaction-induced self-separating catalysts; valorization of biomass through catalytic processes

Special Issue Information

Dear Colleagues,

We are pleased to invite you to participate in a Special Issue dedicated to the Design, Synthesis and Applications of Homogeneous/Heterogeneous Oxidation Catalysts. The current Special Issue aims to describe the development of new transition-metal compounds and their use as homogeneous/heterogeneous oxidation catalysts. Catalysis, one of the pillars of green chemistry, can lead to more sustainable processes for the production of compounds that can be used as commodity chemicals or high-value chemicals.

The broad scope of this Special Issue will include works focused on the development of new strategies for the preparation of inorganic/organometallic transition-metal compounds with catalytic properties for oxidation reactions. There is also interest in theoretical studies aimed at shedding light on the mechanism of action of the catalysts.

We welcome in this Special Issue both experimental and theoretical works related to the development of new compounds that can act as catalysts in oxidation reactions. The topics of this Special Issue include but are not limited to the following:

  • Homogeneous transition metal catalysts;
  • Heterogeneous transition metal catalysts;
  • Kinetic study of transition metal-catalyzed processes;
  • Computational research on transition metal-containing catalysts.

Dr. Ana Gomes
Dr. Patrícia Neves
Guest Editors

Manuscript Submission Information

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Keywords

  • inorganic supports
  • organic–inorganic hybrids
  • heterogeneous catalysts
  • homogeneous catalysts
  • oxidation catalysis
  • theoretical calculations

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Published Papers (1 paper)

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Research

14 pages, 3798 KiB  
Article
Oxidation in Flow Using an Ionic Immobilized TEMPO Catalyst on an Ion Exchange Resin
by Johannes Gmeiner and Gerrit A. Luinstra
Catalysts 2024, 14(8), 542; https://doi.org/10.3390/catal14080542 - 19 Aug 2024
Viewed by 1085
Abstract
An ionic heterogenized catalyst system for Anelli oxidation has been developed using potassium 4-sulfonato-oxy-2,2,6,6-tetramethylpiperidine-1-yloxyl (TEMPO-4-sulfate) and anion exchange beads as support material. The catalytic oxidation of benzyl alcohol by bis(acetoxy)iodobenzene (BAIB) in acetonitrile with the modified beads gives a 94% yield of benzaldehyde [...] Read more.
An ionic heterogenized catalyst system for Anelli oxidation has been developed using potassium 4-sulfonato-oxy-2,2,6,6-tetramethylpiperidine-1-yloxyl (TEMPO-4-sulfate) and anion exchange beads as support material. The catalytic oxidation of benzyl alcohol by bis(acetoxy)iodobenzene (BAIB) in acetonitrile with the modified beads gives a 94% yield of benzaldehyde within 60 min (batch operation). The beads give about the same conversion of benzyl alcohol in six consecutive cycles when reused after simple washing, albeit with a somewhat longer half-life time. The TEMPO entity could be removed from the beads using a sodium chloride/sodium hydroxy mixture. Reloading the beads with TEMPO-4-sulfate restored about 80% of their initial catalytic action. This exemplifies that the catalytic activity in a fixed bed can be regained without the need for cleaning and repacking the reactor. Preliminary experiments in a fixed bed show that a constant benzyl alcohol conversion of 84% over 10 residence times (as plug flow) can be achieved by the in-flow execution of the oxidation reaction. Full article
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