Emergent Materials and Strategies for Catalytic Glycerol Transformation with Low Energy Input

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

Deadline for manuscript submissions: closed (30 September 2021) | Viewed by 3255

Special Issue Editors


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Guest Editor
Department of Chemical Engineering and Physical Chemistry, University of Extremadura, 06006 Badajoz, Spain
Interests: heterogeneous catalysis; activated carbon; CO2 photoreduction or artificial photosynthesis; water pollutant valorization
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Guest Editor
Organic Chemistry Department, University of Cordoba, Campus de Excelencia Internacional Agroalimentario (ceiA3), Campus de Rabanales, Marie Curie Building, E-14014 Cordoba, Spain
Interests: heterogeneous catalysis; environmental catalysis; bio-inspired materials photocatalyst; nanomaterials and nanotechnology
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

During the last several decades, biorefinery has been taking a share in the fuels market. With the requirements on carbon footprint reduction for petrochemical industries, biorefinery is expected to significantly increase in the near future. Glycerol is the main by-product of biodiesel, and therefore it will be generated in tremendous amounts, with the real possibility of market saturation. Glycerol transformation in other products has been extensively investigated since the 1990s. A great number of compounds can be produced from glycerol through reforming, thermochemical reaction, hydrogenolysis, oxidation, etc. Some of these technologies require a large energy input, which might prevent/hinder their industrial implementation. As an alternative, emergent routes are focus on reducing the energy input and obtaining new products, for instance; photoconversion uses direct light as energy input to produce and accelerate chemicals reactions; electro-conversion which can get the low energy input from sun through solar panels; developing new catalysts active at lower temperatures. These types of routes have been widely reported on in the literature, however, the current typical yields achieved through these processes are lower than those achieved with conventional thermochemical processes, requiring research in this field. This Special Issue focuses on significant advances in heterogeneous catalysts for glycerol conversion focus on reducing the amount of energy input or new catalytic routes for glycerol transformation.    

The aim of this Special Issue is to cover the research trends in catalysts for the conversion of glycerol with low energy input. Full papers, short communications, and reviews in this field are welcome. Mini-reviews with an overview on the state of the art with the future perspectives and trends will also be considered.

Dr. Vicente Montes
Dr. Jesús Hidalgo-Carrillo
Guest Editors

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Keywords

  • glycerol valorization
  • photocatalyst
  • electro-conversion
  • low temperature thermo-conversion
  • photoreduction
  • hydrogen production
  • photo-reforming

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Published Papers (1 paper)

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Research

16 pages, 2136 KiB  
Article
Insights into the Nature of the Active Sites of Pt-WOx/Al2O3 Catalysts for Glycerol Hydrogenolysis into 1,3-Propanediol
by Clara Jarauta-Córdoba, Mikel Oregui Bengoechea, Iker Agirrezabal-Telleria, Pedro-Luis Arias and Iñaki Gandarias
Catalysts 2021, 11(10), 1171; https://doi.org/10.3390/catal11101171 - 27 Sep 2021
Cited by 9 | Viewed by 2602
Abstract
The chemo-selective hydrogenolysis of secondary hydroxyls is an important reaction for the production of biomass-derived α,ω-diols. This is the case for 1,3-propanediol production from glycerol. Supported Pt-WOx materials are effective catalysts for this transformation, and their activity is often related to the [...] Read more.
The chemo-selective hydrogenolysis of secondary hydroxyls is an important reaction for the production of biomass-derived α,ω-diols. This is the case for 1,3-propanediol production from glycerol. Supported Pt-WOx materials are effective catalysts for this transformation, and their activity is often related to the tungsten surface density and Brönsted acidity, although there are discrepancies in this regard. In this work, a series of Pt-WOx/γ-Al2O3 catalysts were prepared by modifying the pH of the solutions used in the active metal impregnation step. The activity–structure relationships, together with the results from the addition of in situ titrants, i.e., 2,6-di-tert-butyl-pyridine or pyridine, helped in elucidating the nature of the bifunctional active sites for the selective production of 1,3-propanediol. Full article
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