Catalysis for Reducing Carbon Footprint and Environmental Impacts

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

Deadline for manuscript submissions: closed (30 June 2024) | Viewed by 4526

Special Issue Editors


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Guest Editor
Departamento de Química Inorgánica y Orgánica, Universidad Jaume I, Avda. Sos Baynat, s/n, 12071 Castelló de la Plana, Spain
Interests: sustainable and supramolecular chemistry

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Guest Editor
Instituto de Tecnología Química, Universitat Politècnica de València, Consejo Superior de Investigaciones Científicas, Av. Los Naranjos s/n, E-46022 Valencia, Spain
Interests: catalysis; materials; redox chemistry; one-pot; fine chemistry; CO2 valorization
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Special Issue Information

Dear Colleagues,

In the coming decades, the world’s economy must face the challenge of a rapid reduction in CO2 emissions that will affect all sectors. In this context, the chemistry sector, which plays an important role in terms of energy consumption and CO2 emissions, has long made significant efforts to improve energy efficiency and reduce fossil fuel consumption, especially in adapting new production processes without losing competitiveness in order to reduce CO2 emissions.

Within this sector, catalysis can contribute to this objective on several fronts: on the one hand, by reducing the energetic requirement of any process, and on the other, by finding more efficient and economically more competitive synthetic pathways.

Thus, catalysis refers to any process that serves to facilitate reactions. Used intensively by the industry, it allows obtaining a product at a higher quantity in less time and with less generated waste. Thus, in the context of the energy crisis, the high prices of some energy sources, the possible depletion of fossil fuels, and the fight against climate change, catalysis is hugely relevant. In addition, catalysts make it possible for other raw materials that were not used before to be used through different synthetic routes (i.e., wastes as a source of raw materials). For example, the employment of molecules from biomass that are commonly regarded as “waste material” (from the animal and plant world) has paved the way for developing new green strategies for the valorization of wastes as a strategy to reduce the carbon footprint.

Now, there remains the great challenge of making them economically competitive to be applied at a commercial level; this is precisely where our Special Issue is framed.

Dr. Belén Altava
Dr. Maria J. Sabater
Guest Editors

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Keywords

  • catalyst
  • biomass
  • recycling
  • regeneration
  • reuse
  • efficiency
  • CO2 valorization

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Published Papers (2 papers)

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Research

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18 pages, 3153 KiB  
Article
Catalytic Cascade for Biomass Valorisation: Coupled Hydrogen Transfer Initiated Dehydration and Self-Aldol Condensation for the Synthesis of 2-methyl-pent-2-enal from 1,3-propanediol
by Yueyuan Ma, Yue-Ming Wang, Fabio Lorenzini and Andrew Craig Marr
Catalysts 2024, 14(8), 481; https://doi.org/10.3390/catal14080481 - 27 Jul 2024
Cited by 1 | Viewed by 1400
Abstract
A one-pot, one-step protocol combining hydrogen transfer initiated dehydration (HTID) of 1,3-propanediol (1,3-PDO), catalysed by [Cp*IrCl2(NHC)] (Cp* = pentamethylcyclopentadienyl; NHC = carbene ligand) complexes (1-5H and 1-3F), and self-aldol condensation (SAC) of propanal (2), allowed selective production [...] Read more.
A one-pot, one-step protocol combining hydrogen transfer initiated dehydration (HTID) of 1,3-propanediol (1,3-PDO), catalysed by [Cp*IrCl2(NHC)] (Cp* = pentamethylcyclopentadienyl; NHC = carbene ligand) complexes (1-5H and 1-3F), and self-aldol condensation (SAC) of propanal (2), allowed selective production of C6 aldehyde 2-methyl-pent-2-enal (3), in ionic liquids with high substrate conversion. This shows, for the first time, the conversion of 1,3-propanediol to C6 aldehydes in one pot via a catalytic hydrogen borrowing methodology. The Ir(III) pre-catalysts and the ionic liquids were recyclable. C6 aldehyde 2-methyl-pent-2-enal could also be selectively produced in the presence of water and in neat 1,3-PDO. The efficient, selective delivery of a value-added chemical from 1,3-PDO, a major product of many whole-cell bacterial fermentation processes, shows that the combination of chemo-catalytic processing of the chemical platform via Cp*IrCl2(NHC)-catalysed HTID/SAC with bio-catalysis has the potential to allow direct valorisation of the bio-renewable feedstocks, such as waste glycerol and sugars, into valuable chemicals. Full article
(This article belongs to the Special Issue Catalysis for Reducing Carbon Footprint and Environmental Impacts)
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Review

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21 pages, 4893 KiB  
Review
Chiral Catalysts for the Enantioselective Carbon Dioxide-Based Cyclic Carbonates and Polycarbonates
by Belén Altava, Francisco G. Cirujano and Eduardo García-Verdugo
Catalysts 2023, 13(11), 1441; https://doi.org/10.3390/catal13111441 - 14 Nov 2023
Cited by 1 | Viewed by 2434
Abstract
Using carbon dioxide as a feedstock for synthesizing organic molecules with added value can contribute to a more sustainable chemical industry since CO2 is an abundant, inexpensive, and nontoxic renewable carbon resource. In this regard, the synthesis of cyclic carbonates and related [...] Read more.
Using carbon dioxide as a feedstock for synthesizing organic molecules with added value can contribute to a more sustainable chemical industry since CO2 is an abundant, inexpensive, and nontoxic renewable carbon resource. In this regard, the synthesis of cyclic carbonates and related organic compounds from CO2 as building blocks has been widely studied, and less attention has been paid to their stereocontrolled process. Therefore, this review focuses on the recent development of enantioselective catalysts for the CO2-mediated formation of chiral organic carbonates. Full article
(This article belongs to the Special Issue Catalysis for Reducing Carbon Footprint and Environmental Impacts)
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