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Nanocatalysts for Oxidation and Combustion

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Catalytic Materials".

Deadline for manuscript submissions: closed (31 March 2021) | Viewed by 7891

Special Issue Editors

Department of Applied Science and Technology, Polytechnic University of Turin, Turin, Italy
Interests: heterogeneous catalysis; biocatalysis; sustainable materials; biotechnology; environmental applications
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

As is known, total oxidation of volatile organic compounds (VOCs) and soot combustion are critical for pollution control in industrial processes and mobile sources. This Special Issue aims at considering the state-of-the-art of oxidation catalysis and combustion processes over nanostructured materials and to emphasize recent advances in environmental catalysis, automotive catalysis, multiscale modelling, synthesis, and characterization of novel solid catalysts. Both academic and industrial views will be given for a better understanding of oxidation catalysis and for the future extent and trends of this domain in our society. A special emphasis on the synthesis and characterization of novel nanocatalysts will be provided, as well as challenges in oxidation reactions. Authors with expertise in these topics are cordially invited to submit their manuscripts to this Special Issue of the journal Materials. Significant original papers and review articles are welcome.

Prof. Debora Fino
Assist. Prof. Marco Piumetti
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords


  • Environmental Catalysis
  • Catalytic Oxidation
  • Soot Oxidation
  • Nanostructured materials
  • Zeolites and Porous Materials

Published Papers (3 papers)

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Research

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10 pages, 3255 KiB  
Article
Preparation of a Series of Pd@UIO-66 by a Double-Solvent Method and Its Catalytic Performance for Toluene Oxidation
Materials 2020, 13(1), 88; https://doi.org/10.3390/ma13010088 - 23 Dec 2019
Cited by 7 | Viewed by 2250
Abstract
This paper reports on the preparation, characterization, and catalytic properties of the Pd@UIO-66 for toluene oxidation. The samples are prepared by the double-solvent method to form catalysts with large specific surface area, highly dispersed Pd0 (Elemental palladium) and abundant adsorbed oxygen, which [...] Read more.
This paper reports on the preparation, characterization, and catalytic properties of the Pd@UIO-66 for toluene oxidation. The samples are prepared by the double-solvent method to form catalysts with large specific surface area, highly dispersed Pd0 (Elemental palladium) and abundant adsorbed oxygen, which are characterized by X-ray Photoelectron Spectroscopy (XPS), Brunauer-Emmett-Teller (BET) and Transmission Electron Microscopy (TEM). The results show that as the Pd content increases, the adsorbed oxygen content further increases, but at the same time Pd0 will agglomerate and lose some active sites, which will affect its catalytic performance. While 0.2%Pd@UIO-66 has the highest concentration of Pd0, the result shows it has the best catalytic activity and the T90 temperature is 210 °C. Full article
(This article belongs to the Special Issue Nanocatalysts for Oxidation and Combustion)
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20 pages, 7231 KiB  
Article
Photocatalytic Abatement of Volatile Organic Compounds by TiO2 Nanoparticles Doped with Either Phosphorous or Zirconium
Materials 2019, 12(13), 2121; https://doi.org/10.3390/ma12132121 - 01 Jul 2019
Cited by 15 | Viewed by 2481
Abstract
The aim of this work is to study the activity of novel TiO2-based photocatalysts doped with either phosphorus or zirconium under a UV-Vis source. A set of mesoporous catalysts was prepared by the direct synthesis: TiO2_A and TiO2 [...] Read more.
The aim of this work is to study the activity of novel TiO2-based photocatalysts doped with either phosphorus or zirconium under a UV-Vis source. A set of mesoporous catalysts was prepared by the direct synthesis: TiO2_A and TiO2_B (titanium oxide synthesized by two different procedures), P-TiO2 and Zr-TiO2 (binary oxides with either nonmetal or metal into the TiO2 framework). Complementary characterizations (N2 physisorption at 77 K, X-ray powder diffraction (XRD), field emission scanning electron microscopy (FESEM), energy dispersive X-ray (EDX) analysis, X-ray Photoelectron Spectroscopy (XPS), and (DR)UV-Vis spectroscopy) were used to investigate the physicochemical properties of the prepared catalysts. Then, the photocatalysts were tested for the oxidation of propylene and ethylene under UV-Vis light. As a result, the most promising catalyst for both the propylene and ethylene oxidation reactions was the P-TiO2 (propylene conversion = 27.8% and ethylene conversion = 13%, TOS = 3 h), thus confirming the beneficial effect of P-doping into the TiO2 framework on the photocatalytic activity. Full article
(This article belongs to the Special Issue Nanocatalysts for Oxidation and Combustion)
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Review

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34 pages, 4168 KiB  
Review
An Overview on the Catalytic Materials Proposed for the Simultaneous Removal of NOx and Soot
Materials 2020, 13(16), 3551; https://doi.org/10.3390/ma13163551 - 12 Aug 2020
Cited by 15 | Viewed by 2677
Abstract
Vehicular pollution has become a major problem in urban areas due to the exponential increase in the number of automobiles. Typical exhaust emissions, which include nitrogen oxides (NOx), hydrocarbons (HC), carbon monoxide (CO), soot, and particulate matter (PM), doubtless have important [...] Read more.
Vehicular pollution has become a major problem in urban areas due to the exponential increase in the number of automobiles. Typical exhaust emissions, which include nitrogen oxides (NOx), hydrocarbons (HC), carbon monoxide (CO), soot, and particulate matter (PM), doubtless have important negative effects on the environment and human health, including cardiovascular effects such as cardiac arrhythmias and heart attacks, and respiratory effects such as asthma attacks and bronchitis. The mitigation measures comprise either the use of clean alternative fuels or the use of innovative technologies. Several existing emission control technologies have proven effective at controlling emissions individually, such as selective catalytic reduction (SCR) and lean NOx trap (LNT) to reduce NOx and diesel particulate filter (DPF) specifically for PM abatement. These after-treatment devices are the most profitable means to reduce exhaust emissions to acceptable limits (EURO VI norms) with very little or no impact on the engine performances. Additionally, the relative lack of physical space in which to install emissions-control equipment is a key challenge for cars, especially those of small size. For this reason, to reduce both volume and cost of the after-treatment devices integrated catalytic systems (e.g., a sort of a “single brick”) have been proposed, reducing both NOx and PM simultaneously. This review will summarize the currently reported materials for the simultaneous removal of NOx and soot, with particular attention to their nature, properties, and performances. Full article
(This article belongs to the Special Issue Nanocatalysts for Oxidation and Combustion)
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