Special Issue "Exclusive Papers of the Editorial Board Members (EBMs) of Catalysts"

A special issue of Catalysts (ISSN 2073-4344).

Deadline for manuscript submissions: 31 December 2022 | Viewed by 6022

Special Issue Editors

Prof. Dr. Keith Hohn
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Guest Editor
Chemical, Paper, and Biomedical Engineering Department, Miami University, Oxford, OH 45056, USA
Interests: catalysis and reaction engineering; natural gas conversion; oxidative dehydrogenation of light hydrocarbons; millisecond contact time reactors; nanoparticle catalysts; biomass conversion
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Prof. Dr. Kotohiro Nomura
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Guest Editor
Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University (TMU), 1-1 Minami Osawa, Hachioji, Tokyo 192-0397, Japan
Interests: homogeneous catalysis; organometallics; catalysis and fine chemicals; precise olefin polymerization
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Dr. Evangelos Topakas
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Guest Editor
Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens, 9 Iroon Polytech Str, Zografou Campus, 15780 Athens, Greece
Interests: biocatalysis; industrial biotechnology; lignocellulose degrading enzymes; novel enzymes; structure-function relationship
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Dr. Vincenzo Baglio
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Guest Editor
Prof. Dr. C. Heath Turner
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Guest Editor
Department of Chemical and Biological Engineering, The University of Alabama, Box 870203, Tuscaloosa, AL 35487, USA
Interests: computational catalysis; DFT calculations; kinetic Monte Carlo simulations; electrocatalysis; adsorption; porous materials; interfacial catalysis; nanoparticle synthesis; polymeric membranes; separations
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Dr. Leonarda Francesca Liotta
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Guest Editor
Institute of Nanostructured Materials, Palermo Research Division, CNR - ISMN, via Ugo La Malfa 153, 90146 Palermo, Italy
Interests: synthesis; characterization and structure-activity relationship of supported noble metal (Pt,Pd,Au) for oxidation reactions; metal-support interaction in gold catalysts for low-temperature CO and VOCs oxidation; use of gold for hydrogen purification by selective oxidation of carbon monoxide (PROX); development of Pd and Au catalysts for abatement at low temperature of VOCs and methane emitted by mobile sources; synthesis and characterization of bimetallic Ni-Au catalysts for hydrocarbon steam reforming reaction and syngas production; optimization of Co-based catalysts composition and preparation method for Fischer-Tropsch synthesis
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Prof. Dr. Jean-François Lamonier
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Guest Editor
Unité de Catalyse et Chimie du Solide, Université Lille, Faculté des Sciences et Technologies, UMR CNRS 8181, 59652 Villeneuve d'Ascq, France
Interests: heterogeneous catalysis; environmental catalysis; VOC catalytic oxidation; plasma-catalysis; transition metal oxides; material surface characterization
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Prof. Dr. Maria A. Goula
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Guest Editor
Laboratory of Alternative Fuels and Environmental Catalysis (LAFEC), Department of Chemical Engineering, University of Western Macedonia, GR-50100 Koila, Greece
Interests: environmental catalysis; biomass utilization; bio-oil; biogas; glycerol; hydrogen; syngas; renewable diesel; reforming; selective deoxygenation; CO2 hydrogenation
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Special Issue Information

Dear Colleagues,

This Special Issue of Catalysts is dedicated to recent advances in the research areas of catalysts and catalyzed reactions and comprises a diverse selection of exclusive papers by the Editorial Board Members (EBMs). It focuses on highlighting recent interesting investigations conducted in the laboratories of our section’s EBMs and represents our journal as an attractive open-access publishing platform for research data on catalysts and catalyzed reactions.

Prof. Dr. Keith Hohn
Prof. Dr. Kotohiro Nomura
Dr. Evangelos Topakas
Dr. Vincenzo Baglio
Prof. Dr. C. Heath Turner
Dr. Leonarda Francesca Liotta
Prof. Dr. Jean-François Lamonier
Prof. Dr. Maria A. Goula
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 2200 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

  • photocatalysis
  • electrocatalysis
  • environmental catalysis
  • biocatalysis
  • whole cell biocatalysis
  • enzyme biocatalysis
  • catalysis for biomass conversion
  • catalysis in organic and polymer chemistry
  • nanostructured catalysts
  • catalytic materials
  • computational catalysis
  • kinetics of catalytic reactions
  • catalysis for sustainable energy

Published Papers (8 papers)

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Editorial

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Editorial
The Merit and the Context of Hydrogen Production from Water and Its Effect on Global CO2 Emission
Catalysts 2022, 12(2), 231; https://doi.org/10.3390/catal12020231 - 18 Feb 2022
Viewed by 533
Abstract
For a green economy to be possible in the near future, hydrogen production from water is a sought-after alternative to fossil fuels [...] Full article
(This article belongs to the Special Issue Exclusive Papers of the Editorial Board Members (EBMs) of Catalysts)

Research

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Communication
Iridium(triNHC)-Catalyzed Transfer Hydrogenation of Glycerol Carbonate without Exogenous Reductants
Catalysts 2022, 12(6), 656; https://doi.org/10.3390/catal12060656 - 15 Jun 2022
Viewed by 427
Abstract
The iridium(Ir) (triNHC = tri-N-heterocyclic carbene)-catalyzed transfer hydrogenation of glycerol carbonate (GC) is described in the absence of additional hydride sources. The described reduction provides a sustainable route to produce industrially-valuable formate and lactate with high turnover numbers (TONs). The bimetallic [...] Read more.
The iridium(Ir) (triNHC = tri-N-heterocyclic carbene)-catalyzed transfer hydrogenation of glycerol carbonate (GC) is described in the absence of additional hydride sources. The described reduction provides a sustainable route to produce industrially-valuable formate and lactate with high turnover numbers (TONs). The bimetallic Ir(I) involving triNHC carbene ligands exhibits high TONs, and the reaction mechanism, including the bimetallic Ir(triNHC) catalyst, is proposed based on mechanistic studies. Full article
(This article belongs to the Special Issue Exclusive Papers of the Editorial Board Members (EBMs) of Catalysts)
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Article
Partial Hydrogenation of Soybean and Waste Cooking Oil Biodiesel over Recyclable-Polymer-Supported Pd and Ni Nanoparticles
Catalysts 2022, 12(5), 506; https://doi.org/10.3390/catal12050506 - 30 Apr 2022
Viewed by 507
Abstract
Biodiesel obtained through the transesterification in methanol of vegetable oils, such as soybean oil (SO) and waste cooking oil (WCO), cannot be used as a biofuel for automotive applications due to the presence of polyunsaturated fatty esters, which have a detrimental effect on [...] Read more.
Biodiesel obtained through the transesterification in methanol of vegetable oils, such as soybean oil (SO) and waste cooking oil (WCO), cannot be used as a biofuel for automotive applications due to the presence of polyunsaturated fatty esters, which have a detrimental effect on oxidation stability (OS). A method of upgrading this material is the catalytic partial hydrogenation of the fatty acid methyl ester (FAME) mixture. The target molecule of the partial hydrogenation reaction is monounsaturated methyl oleate (C18:1), which represents a good compromise between OS and the cold filter plugging point (CFPP) value, which becomes too high if the biodiesel consists of unsaturated fatty esters only. In the present work, polymer-supported palladium (Pd-pol) and nickel (Ni-pol) nanoparticles were separately tested as catalysts for upgrading SO and WCO biodiesels under mild conditions (room temperature for Pd-pol and T = 100 °C for Ni-pol) using dihydrogen (p = 10 bar) as the reductant. Both catalysts were obtained through co-polymerization of the metal containing monomer M(AAEMA)2 (M = Pd, Ni; AEEMA = deprotonated form of 2-(acetoacetoxy)ethyl methacrylate)) with co-monomers (ethyl methacrylate for Pd and N,N-dimethylacrilamide for Ni) and cross-linkers (ethylene glycol dimethacrylate for Pd and N,N’-methylene bis-acrylamide for Ni), followed by reduction. The Pd-pol system became very active in the hydrogenation of C=C double bonds, but poorly selective towards the desirable C18:1 product. The Ni-pol catalyst was less active than Pd-pol, but very selective towards the mono-unsaturated product. Recyclability tests demonstrated that the Ni-based system retained its activity and selectivity with both the SO and WCO substrates for at least five subsequent runs, thus representing an opportunity for waste biomass valorization. Full article
(This article belongs to the Special Issue Exclusive Papers of the Editorial Board Members (EBMs) of Catalysts)
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Article
Dimethyl Ether Hydrolysis over WO3/γ-Al2O3 Supported Catalysts
Catalysts 2022, 12(4), 396; https://doi.org/10.3390/catal12040396 - 01 Apr 2022
Cited by 2 | Viewed by 682
Abstract
Dimethyl ether (DME) is considered an alternative hydrogen carrier with potential use in fuel cells and automotive and domestic applications. Dimethyl ether hydrolysis to methanol is a thermodynamically limited reaction catalyzed by solid-acid catalysts, mainly Al2O3 and zeolites. Moreover, it [...] Read more.
Dimethyl ether (DME) is considered an alternative hydrogen carrier with potential use in fuel cells and automotive and domestic applications. Dimethyl ether hydrolysis to methanol is a thermodynamically limited reaction catalyzed by solid-acid catalysts, mainly Al2O3 and zeolites. Moreover, it is the rate-limiting step of the DME steam reforming reaction, which is employed for the production of hydrogen fuel for fuel cell feeding. In the present study, the performance of WO3/Al2O3 catalysts (0–44% wt. WO3) was tested in DME hydrolysis reaction. The catalysts were characterized by means of N2-physisorption, XRD, Raman spectroscopy, XPS, NH3-TPD and 2,6-di-tert-butylpyridine adsorption experiments. The reaction rate of DME hydrolysis exhibited a volcanic trend as a function of tungsten surface density, while the best-performing catalyst was 37WO3/Al2O3, with a tungsten surface density of 7.4 W/nm2, noting that the theoretical monolayer coverage for the specific system is 4–5 W/nm2. Brønsted acidity was directly associated with the catalytic activity, following the same volcanic trend as a function of tungsten surface density. Blocking of Brønsted acid sites with 2,6-di-tert-butylpyridine led to a dramatic decrease in hydrolysis rates by 40 times, proving that Brønsted acid sites are primarily responsible for the catalytic activity. Thus, the type and strength rather than the concentration of acid sites are the key factors influencing the catalytic activity. Full article
(This article belongs to the Special Issue Exclusive Papers of the Editorial Board Members (EBMs) of Catalysts)
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Article
Lignin as a Bio-Sourced Secondary Template for ZSM-5 Zeolite Synthesis
Catalysts 2022, 12(4), 368; https://doi.org/10.3390/catal12040368 - 24 Mar 2022
Viewed by 627
Abstract
The aim of this study was to investigate the effect of the addition of lignin as a sacrificial agent in ZSM-5 zeolite synthesis. Peculiar growths of ZSM-5 crystals leading to various textural properties were observed. Hence, the behavior in acid-catalyzed conversion of methanol [...] Read more.
The aim of this study was to investigate the effect of the addition of lignin as a sacrificial agent in ZSM-5 zeolite synthesis. Peculiar growths of ZSM-5 crystals leading to various textural properties were observed. Hence, the behavior in acid-catalyzed conversion of methanol into hydrocarbons (MTH) shifted from high selectivity toward olefins (>55%) to the sole formation of dimethyl ether (DME). Lignin acted as a bio-sourced secondary template (BSST), impacting the zeolite crystals’ shape and, thus, their physicochemical properties. Full article
(This article belongs to the Special Issue Exclusive Papers of the Editorial Board Members (EBMs) of Catalysts)
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Article
Efficient Synthesis of Dihydropyrimidines Using a Highly Ordered Mesoporous Functionalized Pyridinium Organosilica
Catalysts 2022, 12(3), 350; https://doi.org/10.3390/catal12030350 - 21 Mar 2022
Viewed by 788
Abstract
A Brönsted acidic ionic solid pyridinium-functionalized organosilica network (PMO-Py-IL) was demonstrated to efficiently catalyse one-pot Biginelli condensation reaction. The green synthesis of 3,4-dihydro-2(H)-pyrimidinones (DHPMs) with high yield was carried out via one-pot three component condensation of β- dicarbonyls, aldehydes, and urea in the [...] Read more.
A Brönsted acidic ionic solid pyridinium-functionalized organosilica network (PMO-Py-IL) was demonstrated to efficiently catalyse one-pot Biginelli condensation reaction. The green synthesis of 3,4-dihydro-2(H)-pyrimidinones (DHPMs) with high yield was carried out via one-pot three component condensation of β- dicarbonyls, aldehydes, and urea in the presence of a catalytic amount of PMO-Py-IL nanomaterial as an efficient nanocatalyst under solvent free conditions. Furthermore, the catalyst showed outstanding stability and could be easily separated and reused for at least ten reaction runs without significant loss of activity and product selectivity. The green protocol features simple set-up, cost-effectiveness, easy work-up, eco-friendly and mild reaction conditions. Full article
(This article belongs to the Special Issue Exclusive Papers of the Editorial Board Members (EBMs) of Catalysts)
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Article
Polyaromatic Carboxylate Ligands Based Zn(II) Coordination Polymers for Ultrasound-Assisted One-Pot Tandem Deacetalization–Knoevenagel Reactions
Catalysts 2022, 12(3), 294; https://doi.org/10.3390/catal12030294 - 04 Mar 2022
Viewed by 1050
Abstract
Solvothermal reactions between the polyaromatic group containing carboxylic acid pro-ligands 5-{(pyren-1-ylmethyl)amino}isophthalic acid (H2L1) and 5-{(anthracen-9-ylmethyl)amino}isophthalic acid (H2L2) with Zn(NO3)2·6H2O led to the formation of the new 1D coordination polymer [...] Read more.
Solvothermal reactions between the polyaromatic group containing carboxylic acid pro-ligands 5-{(pyren-1-ylmethyl)amino}isophthalic acid (H2L1) and 5-{(anthracen-9-ylmethyl)amino}isophthalic acid (H2L2) with Zn(NO3)2·6H2O led to the formation of the new 1D coordination polymer [Zn(L1)(NMF)]n (1) and four other coordination polymers, [Zn(L1)(DMF)]n (2), [Zn(L1)(4,4′-Bipy)]n (3), [Zn(L2)(DMF)(H2O)2]n·n(H2O) (4) and [Zn2(L2)2(DMF)(CH3OH)]n (5), which were previously reported by our group. Single crystal X-ray diffraction analyses revealed that the CP 1 has a one-dimensional (1D) double-chain-type structure similar to that of CP 2. For CP 3, the assembly of the Zn(II) ion with a deprotonated L12− ligand and 4,4′-bipyridine produces a 3D network. CP 4 and 5 exhibit 1D linear and 2D layered-type structures. The ultrasound-assisted tandem reactions promoted by CPs have not yet been well studied. Thus, in the present work, we have investigated the catalytic activities of the newly synthesized CP 1, as well as of the other CPs 25, towards the tandem deacetalization–Knoevenagel condensation reactions of various acetals under ultrasonic irradiation. They proved to be highly efficient, with special emphasis on catalyst 1, which completely converted the substrate (benzaldehyde dimethyl acetal) into the desired product (2-benzylidenemalononitrile) after 2 h. The stability of the catalysts, namely regarding the action of ultrasonic radiation, was demonstrated by their reuse, where only a slight loss of activity was observed after four cycles. Heterogeneity was also demonstrated, and no leaching was detected over the various cycles. Full article
(This article belongs to the Special Issue Exclusive Papers of the Editorial Board Members (EBMs) of Catalysts)
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Communication
Identification of New Dioxygenases Able to Recognize Polycyclic Aromatic Hydrocarbons with High Aromaticity
Catalysts 2022, 12(3), 279; https://doi.org/10.3390/catal12030279 - 02 Mar 2022
Viewed by 856
Abstract
Polycyclic aromatic hydrocarbons (PAHs), products from the incomplete combustion of crude oil, are pollutants present in nature. Ring hydroxylating dioxygenase enzymes are able to catalyze polycyclic aromatic hydrocarbons in the biodegradation process with a high degree of stereo-, regio-, and enantiospecificity. In this [...] Read more.
Polycyclic aromatic hydrocarbons (PAHs), products from the incomplete combustion of crude oil, are pollutants present in nature. Ring hydroxylating dioxygenase enzymes are able to catalyze polycyclic aromatic hydrocarbons in the biodegradation process with a high degree of stereo-, regio-, and enantiospecificity. In this work, we present the first approximation of the binding modes of 9 PAHs with high aromaticity in the catalytic sites of biphenyl or naphthalene dioxygenases from four microorganisms usually used in bio-remediation processes: Sphingobium yanoikuyae, Rhodococcus jostii RHA1, Pseudomonas sp. C18, and Paraburkholderia xenovorans. Molecular modeling studies of two biphenyl dioxygenases from Sphingobium yanoikuyae and Paraburkholderia xenovorans showed good binding affinity for PAHs with 2–4 benzene rings (fluoranthene, pyrene, and chrysene), and both enzymes had a similar amount of substrate binding. Molecular docking studies using naphthalene dioxygenase from Pseudomonas sp. C18 showed that the enzyme is able to accommodate PAHs with high aromaticity (benzo(a)pyrene, indeno(1,2,3-cd)pyrene), with good docking scores. This study provides important insight into the utility of naphthalene dioxygenases in the degradation of HAPs with high aromaticity. Full article
(This article belongs to the Special Issue Exclusive Papers of the Editorial Board Members (EBMs) of Catalysts)
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