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Catalysts
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Heterogeneous Catalysis in Green Chemistry II
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Heterogeneous Catalysis in Green Chemistry II

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

Deadline for manuscript submissions: closed (31 March 2023) | Viewed by 5841

Special Issue Editors

Dr. Jesús M. Requies

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Guest Editor
Chemical and Environmental Engineering Department, Engineering Faculty of Bilbao, University of Basque Country (UPV/EHU), Plaza Ingeniero Torres Quevedo 1, 48013 Bilbao, Spain
Interests: heterogeneous catalysis; catalyst characterization; biomass; biorefinery; hydrogen; hydrogenolysis; green chemistry
Special Issues, Collections and Topics in MDPI journals
Dr. Victoria Laura Barrio Cagigal

E-Mail Website
Guest Editor
Chemical and Environmental Engineering Department, Engineering Faculty of Bilbao, University of Basque Country (UPV/EHU), Plaza Ingeniero Torres Quevedo 1, 48013 Bilbao, Spain
Interests: thermocatalytic processes; clean fuels; CO2 valorisation; microreactors and membrane systems; life cycle analysis
Special Issues, Collections and Topics in MDPI journals
Dr. Nerea Viar

E-Mail Website
Guest Editor
Chemical and Environmental Engineering Department, Engineering Faculty of Bilbao, University of the Basque Country (UPV/EHU), Plaza Ingeniero Torres Quevedo 1, 48013 Bilbao, Spain
Interests: heterogeneous catalysis; catalyst characterization; sustainable processes; biorefinery and biomass; green chemistry

Special Issue Information

Dear Colleagues,

This Special Issue is a continuation of the previous successful Special Issue “Heterogeneous Catalysis in Green Chemistry”.

Sustainable development in the chemical industry is based on recent interest in developing new processes that reduce energy consumption and minimize its environmental impact. Heterogeneous catalysts are key tools in green chemistry used for the production of biofuels and chemicals, for reducing energy consumption, and for minimizing hazardous products by increasing the activity and selectivity of catalysts to produce chemicals from fossil or renewable raw materials. The development of new and more active and stable catalysts is essential for the implementation of green chemistry.

This Special Issue will focus on the technological aspects of the application of heterogeneous catalysis in sustainable development. New developments in the design of heterogeneous catalysts for sustainable processes augur new knowledge in “Heterogeneous Catalysis in Green Chemistry” that we hope to collect in this Special Issue.

Dr. Jesús M. Requies
Dr. Victoria Laura Barrio Cagigal
Dr. Nerea Viar
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 catalysts
  • green chemistry
  • metal catalysts
  • biorefinery
  • biofuels
  • acid catalysts
  • functional catalysts
  • hydrogen technologies
  • oxidation
  • hydrotreating
  • dehydration and hydrogenolysis

Related Special Issue

Published Papers (3 papers)

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Research

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15 pages, 1644 KiB  
Article
Lignin Hydrogenolysis over Bimetallic Ni–Ru Nanoparticles Supported on SiO2@HPS
by Antonina A. Stepacheva, Oleg V. Manaenkov, Mariia E. Markova, Alexander I. Sidorov, Alexsey V. Bykov, Mikhail G. Sulman and Lioubov Kiwi-Minsker
Catalysts 2023, 13(5), 856; https://doi.org/10.3390/catal13050856 - 08 May 2023
Cited by 1 | Viewed by 1456
Abstract
Lignin obtained by hydrogenolysis of lignocellulose biomass is a prospective source of valuable green fuels and chemicals such as monophenols. One of the key factors in the chemical decomposition of lignin to monophenols is an efficient catalyst. Inert porous materials such as hypercrosslinked [...] Read more.
Lignin obtained by hydrogenolysis of lignocellulose biomass is a prospective source of valuable green fuels and chemicals such as monophenols. One of the key factors in the chemical decomposition of lignin to monophenols is an efficient catalyst. Inert porous materials such as hypercrosslinked polymers are suitable catalytic supports for the immobilization of noble and transition metal nanoparticles. However, such polymers do not have acidic properties, which are crucial for catalyzing hydrolysis. In this work, we report novel, efficient catalysts for lignin hydrogenolysis to produce valuable monophenolic compounds. The synthesized catalysts contained Ni, Ru, and Ni–Ru nanoparticles supported on SiO2-coated hypercrosslinked polystyrene (SiO2@HPS). Ni-Ru/SiO2@HPS demonstrated remarkable stability without any loss of the metallic phase and a high yield of monophenols (>42 wt.%) at close to full lignin conversion (>95 wt.%). This result was attributed to the synergy between the two metals and the support’s surface acidity. All catalysts were fully characterized by a series of physico-chemical methods. Full article
(This article belongs to the Special Issue Heterogeneous Catalysis in Green Chemistry II)
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9 pages, 2286 KiB  
Communication
High-Temperature-Treated LTX Zeolites as Heterogeneous Catalysts for the Hock Cleavage
by Jan Drönner, Karim Bijerch, Peter Hausoul, Regina Palkovits and Matthias Eisenacher
Catalysts 2023, 13(1), 202; https://doi.org/10.3390/catal13010202 - 15 Jan 2023
Cited by 1 | Viewed by 1832
Abstract
Hydroxybenzene, commonly known as phenol, is one of the most important organic commodity chemicals. To produce phenol, the cumene process is the most used process worldwide. A crucial step in this process is the Hock rearrangement, which has a major impact on the [...] Read more.
Hydroxybenzene, commonly known as phenol, is one of the most important organic commodity chemicals. To produce phenol, the cumene process is the most used process worldwide. A crucial step in this process is the Hock rearrangement, which has a major impact on the overall cumene consumption rate and determines the safety level of the process. The most used catalyst for the cleavage of cumene hydroperoxide (CHP) is sulfuric acid. Besides its strong corrosive property, which increases plant investment costs, it also requires neutralization after the decomposition step to prevent side reactions. In this study, we show that high-temperature-treated Linde Type X (LTX) zeolites exhibit a high activity for the peroxide cleavage step. In addition, the structure–activity relationship responsible for this good performance in the reaction system of the HOCK rearrangement was investigated. XRPD analyses revealed the formation of a new phase after temperature treatment above 900 °C. The Si/Al ratio determined by EDX suggested the formation of extra-framework aluminum, which was confirmed by solid-state NMR analysis. The newly formed extra-framework aluminum was found to be responsible for the high catalytic activity. BET analyses showed that the surface area drops at higher calcination temperatures. This leads to a lower catalytic activity for most known reactions. However, for this study, no decrease in activity has been observed. The newfound material shows extraordinarily high activity as a catalyst in the HOCK cleavage and has the potential to be a heterogeneous alternative to sulfuric acid for this reaction. Full article
(This article belongs to the Special Issue Heterogeneous Catalysis in Green Chemistry II)
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Review

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52 pages, 6984 KiB  
Review
Recent Progress in Chitosan-Containing Composite Materials for Sustainable Approaches to Adsorption and Catalysis
by Linda Z. Nikoshvili, Boris B. Tikhonov, Pavel E. Ivanov, Polina Y. Stadolnikova, Mikhail G. Sulman and Valentina G. Matveeva
Catalysts 2023, 13(2), 367; https://doi.org/10.3390/catal13020367 - 07 Feb 2023
Cited by 10 | Viewed by 2176
Abstract
In recent years, composite materials including organic–inorganic systems have drawn special attention due to their enhanced properties such as adsorbents and heterogeneous catalysts. At the same time, large-scale production of environmentally benign functionalized biopolymers, such as chitosan (CS), allows for constantly developing new [...] Read more.
In recent years, composite materials including organic–inorganic systems have drawn special attention due to their enhanced properties such as adsorbents and heterogeneous catalysts. At the same time, large-scale production of environmentally benign functionalized biopolymers, such as chitosan (CS), allows for constantly developing new materials, since CS reveals remarkable properties as a stabilizing agent for metal-containing compounds and enzymes and as an adsorbent of organic molecules. This review is focused on CS-based materials and on the composite systems including CS-oxide and CS-metal composites in particular for application as adsorbents and supports for catalytically active metal nanoparticles and enzymes. Full article
(This article belongs to the Special Issue Heterogeneous Catalysis in Green Chemistry II)
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