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Exclusive Papers of the Editorial Board Members and Topical Advisory...
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Special Issue "Exclusive Papers of the Editorial Board Members and Topical Advisory Panel Members of Catalysts in Section "Catalytic Materials""

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

Deadline for manuscript submissions: 29 February 2024 | Viewed by 2743

Special Issue Editors

Dr. Leonarda Liotta

E-Mail Website
Guest Editor
Institute of Nanostructured Materials, Palermo Research Division, CNR - ISMN, Via Ugo La Malfa 153, 90146 Palermo, Italy
Interests: heterogeneous catalysts for CO2 valorization; dry and steam reforming of methane; autothermal reactions; thermal and photothermal activation; H2 purification; WGS reaction and PROX; CO2 hydrogenation; methanation reaction; CO2 electrochemical reduction; SOECs; SOFCs; catalytic devices for VOCs abatement (indoor and outdoor); CO and CH2 oxidation; NO SCR by NH3, HC, EtOH; antifouling and bactericidal activity of green materials
Special Issues, Collections and Topics in MDPI journals
Dr. Narendra Kumar

E-Mail Website
Guest Editor
Faculty of Science and Engineering, Industrial Chemistry and Reaction Engineering, Åbo Akademi University, Henriksgatan 2, FI-20500 Turku, Finland
Interests: heterogeneous catalysis; catalyst synthesis; nanoporous materials; catalyst characterization; zeolite catalysis; refinery processes; hydrocarbon conversion; reaction mechanism; biomass transformations
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Konstantin Ivanov Hadjiivanov

E-Mail Website
Guest Editor
Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
Interests: vibrational spectroscopy; surfaces; environmental catalysis; adsorption; porous materials

Special Issue Information

Dear Colleagues,

We are pleased to announce the launch of a new Special Issue, “Exclusive Papers of the Editorial Board Members and Topical Advisory Panel Members of /Catalysts/ in the Section "Catalytic Materials”. This will be a collection of papers edited by the editorial board members of Section “Catalytic Materials.” The issue will cover wide-ranging research and review papers in the field of homogeneous and heterogeneous catalysis, failing within the expertise of selected members of the Editorial board.

The catalytic materials addressed will cover advanced materials such as transition metal oxides, porous materials (MOFs, zeolites, mesoporous materials), 2D and layered materials, supported and bulk metals, single-atom catalysts, and carbon-based materials.

Detailed characterization of these materials (including in situ and operando studies) and their catalytic properties will be addressed. The focus of the issue will be on environmental protection (energy accumulation, biofuel production, CO2 capture, and utilization, DeNOx, removal of VOCs and pollutants in water, and photocatalysis).

We hope to receive many outstanding submissions that will contribute to the creation of an important Special Issue in this journal.

Dr. Leonarda Liotta
Dr. Narendra Kumar
Prof. Dr. Konstantin Ivanov Hadjiivanov
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. Catalysts is an international peer-reviewed open access monthly 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 2700 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

  • homogeneous catalysis
  • heterogeneous catalysis
  • hybrid materials, metal organic frameworks (MOFs)
  • zeolites and porous materials
  • oxide-based catalysts
  • two-dimensional (2D) materials
  • metal modified catalysts, noble metals
  • single-atom catalysts
  • acid catalysts
  • perovskite
  • layered materials
  • carbon-based catalysts
  • environmental catalysis
  • nanomaterials
  • graphene
  • CO2 conversions
  • environmental catalysis

Published Papers (4 papers)

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Research

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Article
The Role of Carbon Nanotube Deposit in Catalytic Activity of FeOX-Based PECVD Thin Films Tested in RWGS Reaction
by
Bartosz Panek
,
Hanna Kierzkowska-Pawlak
,
Paweł Uznański
,
Stefan Nagy
,
Veronika Nagy-Trembošová
and
Jacek Tyczkowski
Catalysts 2023, 13(9), 1302; https://doi.org/10.3390/catal13091302 - 17 Sep 2023
Viewed by 405
Abstract
While the reverse water-gas shift (RWGS) reaction holds great promise as a method of converting CO2 to CO and subsequently into valuable fuels, achieving its commercial viability requires the development of highly efficient, selective, durable, and low-cost catalysts. Recently, thin-film nanocatalysts produced [...] Read more.
While the reverse water-gas shift (RWGS) reaction holds great promise as a method of converting CO2 to CO and subsequently into valuable fuels, achieving its commercial viability requires the development of highly efficient, selective, durable, and low-cost catalysts. Recently, thin-film nanocatalysts produced through plasma deposition (PECVD) have garnered significant attention in this domain. Among them, FeOx-based catalytic films deposited using Fe(CO)5 as a precursor, under reduced pressure (4–5 Pa) and a 13.56 MHz glow discharge, have demonstrated particular interest. Our study shows that by appropriately tuning the parameters of the plasma deposition process, it is feasible to generate nanocatalyst films exhibiting exceptional CO2 conversion (38% at 673 K) and CO selectivity (97%). Moreover, the study has revealed the formation of a carbon deposit containing carbon nanotubes (CNTs) during the RWGS reaction, significantly increasing the catalytic activity of the films. Through an analysis involving X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), and electron microscopy techniques (SEM and HRTEM), we have determined that CNTs not only serve as carriers for highly catalytically active Fe nanoparticles but also create nanoscale heterojunctions (p-n) with Fe2O3 nanoparticles, thereby enhancing their catalytic effect. This paper attempts to elucidate the differences and changes in the surface structure of FeOx-based films dictating the catalytic activity, which stems from both the conditions of plasma deposition and the environmental impact during the catalytic process. Full article
(This article belongs to the Special Issue Exclusive Papers of the Editorial Board Members and Topical Advisory Panel Members of Catalysts in Section "Catalytic Materials")
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Article
Optimizing Citrate Combustion Synthesis of A-Site-Deficient La,Mn-Based Perovskites: Application for Catalytic CH4 Combustion in Stoichiometric Conditions
by
Andrea Osti
,
Lorenzo Rizzato
,
Jonathan Cavazzani
and
Antonella Glisenti
Catalysts 2023, 13(8), 1177; https://doi.org/10.3390/catal13081177 - 01 Aug 2023
Viewed by 517
Abstract
LaMnO3-based perovskites are widely recognized as promising catalysts for several oxidation reactions, but the final physicochemical and catalytic properties can be greatly influenced by the adopted synthesis procedure. In this work, a series of A-site-deficient perovskites of composition La0.8MnO [...] Read more.
LaMnO3-based perovskites are widely recognized as promising catalysts for several oxidation reactions, but the final physicochemical and catalytic properties can be greatly influenced by the adopted synthesis procedure. In this work, a series of A-site-deficient perovskites of composition La0.8MnO3 and La0.8Mn0.9B0.1O3 (B = Ni, Cu) were prepared through the citrate combustion route with variations in two synthesis parameters: a citric acid/metal cations molar ratio (CA/M) of either 1.1 or 1.5 and either acidic (given by HNO3 + citric acid) or neutral (after NH3 addition) pH of the precursor solution. The obtained samples were characterized by XRD, H2-TPR, O2-TPD, N2 physisorption, SEM-EDX and XPS. Acidic pH coupled with a CA/M ratio of 1.1 clearly emerged superior among all the other combinations of the two parameters, resulting in smaller crystallite size, higher surface area and porosity, enhanced Mn4+ reducibility and the ability to release oxygen species; these features were even further improved by B-site substitution with 10 mol% Ni and Cu cations. The synthesized catalysts were tested in CH4 oxidation to CO2 under stoichiometric O2, confirming the great superiority of samples prepared in acidic pH with a CA/M ratio of 1.1. Ni and Cu doping had a beneficial effect on catalytic activity, which, however, was more evident for less optimized perovskites (acidic pH and CA/M ratio of 1.5), without significance differences among the two dopants. Full article
(This article belongs to the Special Issue Exclusive Papers of the Editorial Board Members and Topical Advisory Panel Members of Catalysts in Section "Catalytic Materials")
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Communication
Sulfonated Silica Coated CoFe2O4 Magnetic Nanoparticles for the Synthesis of 3,4-Dihydropyrimidin-2(1H)-One and Octahydroquinazoline Derivatives
by
Mozhgan Afshari
,
Sónia A. C. Carabineiro
and
Maryam Gorjizadeh
Catalysts 2023, 13(6), 989; https://doi.org/10.3390/catal13060989 - 09 Jun 2023
Cited by 1 | Viewed by 731
Abstract
Sulfonated-silica-coated cobalt ferrite (CoFe2O4) magnetic nanoparticles (MNPs-SiCoFe-SO3H) are efficient heterogeneous catalysts for the synthesis of 3,4-dihydropyrimidin-2(1H)-one and octahydroquinazoline derivatives in the absence of solvent. The effects of solvent, temperature, and catalyst amount on the reaction are investigated. [...] Read more.
Sulfonated-silica-coated cobalt ferrite (CoFe2O4) magnetic nanoparticles (MNPs-SiCoFe-SO3H) are efficient heterogeneous catalysts for the synthesis of 3,4-dihydropyrimidin-2(1H)-one and octahydroquinazoline derivatives in the absence of solvent. The effects of solvent, temperature, and catalyst amount on the reaction are investigated. The easy separation, reusability of the catalyst, simplicity of the procedure, mild reaction conditions, and good yields (68–95%) within short reaction times (15–70 min) are the advantages of this method. The catalyst can be reused up to eight times with not much loss of activity. Scanning electron microscopy images, X-ray diffraction spectra, and elemental analysis of the recycled catalyst show that the catalyst is stable after the reaction. Full article
(This article belongs to the Special Issue Exclusive Papers of the Editorial Board Members and Topical Advisory Panel Members of Catalysts in Section "Catalytic Materials")
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Article
Fabrication of New TiO2 Photocatalyst for Removing Organic Dyes and Hazardous VOCs in Air Purifier System
by
Ji Won Lee
,
Rak Hyun Jeong
,
Ikjo Shin
and
Jin-Hyo Boo
Catalysts 2023, 13(6), 935; https://doi.org/10.3390/catal13060935 - 25 May 2023
Viewed by 649
Abstract
We synthesized an amorphous Ti-based hydroperoxo complex (ATPC) using a facile method involvingonly titanium hydride (TiH2) and H2O2 under mild conditions. We chose TiH2 as the precursor because it has more reactive sites than metal oxides such [...] Read more.
We synthesized an amorphous Ti-based hydroperoxo complex (ATPC) using a facile method involvingonly titanium hydride (TiH2) and H2O2 under mild conditions. We chose TiH2 as the precursor because it has more reactive sites than metal oxides such as TiO2. Qualitative and quantitative optical measurements showed that our synthesized ATPC photocatalysts contained many hydroperoxo groups and various oxidation states of Ti (Ti2+, Ti3+, and Ti4+). Thus, the synthesized ATPC exhibits excellent photocatalytic properties with very fast rates of organic decolorization compared to other conventional visiblelight catalysts. The presence of many hydroperoxo complexes increases the formation of active radicals, which can degrade VOCs such as acetaldehyde in a gas phase. To test the application of the synthesized ATPC, we fabricated a filter system in an air purifier using ATPC coating layers and successfully removed the VOCs. We also proposed a possible photocatalytic oxidation mechanism with ATPC based on this study. It is important to conduct application tests as well as commercialization in photocatalytic experiments. Full article
(This article belongs to the Special Issue Exclusive Papers of the Editorial Board Members and Topical Advisory Panel Members of Catalysts in Section "Catalytic Materials")
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