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6.3
3.9
Journals
Catalysts
Special Issues
Concepts of Modern Catalysis and Kinetics
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Concepts of Modern Catalysis and Kinetics

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

Deadline for manuscript submissions: closed (31 December 2020) | Viewed by 6243

Special Issue Editors

Dr. Enrico Catizzone

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Guest Editor
Department of Environmental Engineering, University of Calabria, Rende, Italy
Interests: heterogeneous catalysis; biomass valorization; CO2 hydrogenation; methanol-to-hydrocarbons process; zeolites; kinetic modeling
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Massimo Migliori

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Guest Editor
Department of Environmental and Chemical Engineering, University of Calabria, Via P. Bucci, I-87036 Rende (CS), Italy
Interests: heterogeneous catalysis and catalytic technologies; biomass transformation; development of nanostructured catalysts; catalysis for sustainable processes
Dr. Emilia Paone

E-Mail Website
Guest Editor
Dipartimento DICEAM, Università degli Studi Mediterranea di Reggio Calabria, 89123 Reggio Calabria, Italy
Interests: heterogeneous catalysis; lignocellulosic biomasses; wastes valorization; hydrogenolysis; hydrogenation
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Over the last few decades, increasing interest from both academia and industry has been devoted to the development of new chemical and technological strategies for an efficient introduction of renewable energy in the value chain of the chemical industry. In this concern, catalysis plays a crucial role, and new advances in terms of development of new catalytic systems, technologies and reaction mechanisms are of paramount importance in order to guide research and innovation towards more environmentally-friend processes. This Special Issue, entitled Concepts of Modern Catalysis and Kinetics, aims to collect original research papers, reviews, and short communications reflecting the state-of-the-art and future perspectives in the field of sustainable and disruptive catalysis for both emergent processes. Submissions are especially welcomed on (but not limited to) the catalytic aspects and kinetics of the following processes: biomass-to-chemicals processes, carbon dioxide conversion towards fuels/chemicals, bio-based platform molecules valorization, the methanol-to-olefins process, and conversion of wastes into high-added value products. Manuscripts concerning the development of innovative catalytic systems are also strongly encouraged.

Dr. Enrico Catizzone
Prof. Massimo Migliori
Dr. Emilia Paone
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

  • Heterogeneous catalysis
  • Fine chemicals and fuels from CO2
  • Biomass transformation
  • Methanol-to-hydrocarbon processes
  • Zeolites
  • Kinetic modeling

Published Papers (2 papers)

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Research

9 pages, 1328 KiB  
Article
Effect of Ultrasound-Assisted Blanching on Myrosinase Activity and Sulforaphane Content in Broccoli Florets
by Andrea Mahn, Julián Quintero, Noelia Castillo and Raidel Comett
Catalysts 2020, 10(6), 616; https://0-doi-org.brum.beds.ac.uk/10.3390/catal10060616 - 02 Jun 2020
Cited by 9 | Viewed by 2432
Abstract
Sulforaphane (SFN) is a health-promoting compound occurring in broccoli. It is formed by action of myrosinase in a two-step reaction that also yields undesirable compounds such as nitriles and isothionitriles. Different techniques affecting enzyme activity and tissue integrity were proposed to increase SFN [...] Read more.
Sulforaphane (SFN) is a health-promoting compound occurring in broccoli. It is formed by action of myrosinase in a two-step reaction that also yields undesirable compounds such as nitriles and isothionitriles. Different techniques affecting enzyme activity and tissue integrity were proposed to increase SFN content in the edible parts and discards of broccoli. Ultrasound processing is an emerging technology that produces these effects in foods, but has been poorly explored in broccoli so far. The aim of this work was to study the effect of ultrasound-assisted blanching on myrosinase activity and SFN content in broccoli florets. Myrosinase showed first-order inactivation kinetics in blanching at different temperatures with and without ultrasound processing. The inactivation rate was faster using ultrasound, with kinetic constants two orders of magnitude higher than without ultrasound. The activation energy (Ea) in traditional blanching (57.3 kJ mol−1) was higher than in ultrasound-assisted blanching (15.8 kJ mol−1). Accordingly, ultrasound accelerates myrosinase inactivation. The blanching time and temperature significantly affected myrosinase activity and SFN content. At 60 °C and 4 min of ultrasound-assisted blanching, myrosinase activity was minimum and SFN content was the highest. These findings may help to design SFN enrichment processes and will contribute to the valorization of agro-industrial wastes. Full article
(This article belongs to the Special Issue Concepts of Modern Catalysis and Kinetics)
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14 pages, 7220 KiB  
Article
Pd/Fe3O4 Nanofibers for the Catalytic Conversion of Lignin-Derived Benzyl Phenyl Ether under Transfer Hydrogenolysis Conditions
by Angela Malara, Emilia Paone, Lucio Bonaccorsi, Francesco Mauriello, Anastasia Macario and Patrizia Frontera
Catalysts 2020, 10(1), 20; https://0-doi-org.brum.beds.ac.uk/10.3390/catal10010020 - 22 Dec 2019
Cited by 22 | Viewed by 3027
Abstract
Novel magnetite-supported palladium catalysts, in the form of nanofiber materials, were prepared by using the electrospinning process. Two different synthetic techniques were used to add palladium to the nanofibers: (i) the wet impregnation of palladium on the Fe3O4 electrospun support [...] Read more.
Novel magnetite-supported palladium catalysts, in the form of nanofiber materials, were prepared by using the electrospinning process. Two different synthetic techniques were used to add palladium to the nanofibers: (i) the wet impregnation of palladium on the Fe3O4 electrospun support forming the Pd/Fe3O4[wnf] catalyst or (ii) the direct co-electrospinning of a solution containing both metal precursor specimens leading to a Pd/Fe3O4[cnf] sample. The obtained Pd-based Fe3O4 nanofibers were tested in the transfer hydrogenolysis of benzyl phenyl ether (BPE), one of the simplest lignin-derived aromatic ethers, by using 2-propanol as H-donor/solvent, and their performances were compared with the analogous impregnated Pd/Fe3O4 catalyst and a commercial Pd/C. A morphological and structural characterization of the investigated catalysts was performed by means of SEM-EDX, TGA-DSC, XRD, TEM, H2-TPR, and N2 isotherm at 77 K analysis. Pd/Fe3O4[wnf] was found to be the best catalytic system allowing a complete BPE conversion after 360 min at 240 °C and a good reusability in up to six consecutive recycling tests. Full article
(This article belongs to the Special Issue Concepts of Modern Catalysis and Kinetics)
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