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Catalysts
Special Issues
New Horizons for Heterogeneous Catalysts, 2nd Edition
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New Horizons for Heterogeneous Catalysts, 2nd Edition

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

Deadline for manuscript submissions: closed (30 April 2024) | Viewed by 2125

Special Issue Editors

Dr. Piotr Bartczak

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Guest Editor
Faculty of Science and Technology, Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland
Interests: catalytic organic synthesis; preparation of nanostructures, including nanocatalysts; catalytic synthesis in gase phase
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Jaroslaw Polanski

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Guest Editor
Faculty of Science and Technology, Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland
Interests: heterogeneous catalysis; nanocatalysis; porous solids; catalytic carbon (di)oxide methanation; catalytic biomass conversion
Special Issues, Collections and Topics in MDPI journals
Dr. Tomasz Siudyga

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Guest Editor
Faculty of Science and Technology, Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland
Interests: removing pollutants in air and industrial gases; catalytic conversion of carbon dioxide; hydrogen production in catalytic processes; synthesis of fuels from wastes
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The Special Issue "New Horizons for Heterogeneous"  saw considerable success, so we decided to reopen this Special Issue with the name "New Horizons for Heterogeneous Catalysts II".

We are at the point where, looking back, we can see how much nanotechnology has developed since Feynman's time. Keeping in mind what has been achieved in this area to date, we still see "plenty of room at the bottom". With each step, we move the horizon, noticing new and practical applications for novel nano-catalytic systems.

Particularly interesting are aspects of catalytic reactions, such as the synthesis of clean fuels (for example hydrogen), the reduction of air and water pollutants, and selective organic synthesis in line with the principles of green chemistry and atomic economy. 

This Special Issue is focused on advanced nanomaterials for the energy industry, environmental protection, and chemical synthesis. If you have a proposal for a new article that promotes this topic, or your research is moving towards the horizon of new nano-catalyst applications, you are invited to send us this material for inclusion in our Special Issue.

Dr. Piotr Bartczak
Prof. Dr. Jaroslaw Polanski
Dr. Tomasz Siudyga
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.

Published Papers (2 papers)

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13 pages, 4317 KiB  
Article
Boosted Catalytic Performance of Ni2Co2@T-PMo@ZIF-67 for Glucose Oxidation in a Direct-Glucose Fuel Cell
by Shipu Jiao, Ning Kang, Miao Liu, Yihao Zhang, Yang Li, Bushra Maryam, Xu Zhang, Pingping Zhang and Xianhua Liu
Catalysts 2024, 14(1), 19; https://doi.org/10.3390/catal14010019 - 27 Dec 2023
Viewed by 846
Abstract
In this study, we report on how to design efficient catalysts for glucose oxidation via the transitional metal doping of nanohybrids of polyoxometalates (POMs) and metal-organic frameworks (MOFs). ZIF-67, a cobalt-based MOF, as well as phosphomolybdic acid (PMo), were used as precursors for [...] Read more.
In this study, we report on how to design efficient catalysts for glucose oxidation via the transitional metal doping of nanohybrids of polyoxometalates (POMs) and metal-organic frameworks (MOFs). ZIF-67, a cobalt-based MOF, as well as phosphomolybdic acid (PMo), were used as precursors for the fabrication of pyrolyzed PMo@ZIF-67 (T-PMo@ZIF-67). A different amount of Ni2+ was doped into PMo@ZIF-67 to produce NixCoy@T-PMo@ZIF-67. Among them, Ni2Co2@T-PMo@ZIF-67 had the best performance. The power density of the fuel cell that used Ni2Co2@T-PMo@ZIF-67 as an anode catalyst was 3.76 times that of the cell that used active carbon as an anode catalyst. SEM and EDS mapping results indicate that Ni2Co2@T-PMo@ZIF-67 has a spherical structure and rough surface, and elements such as cobalt, nickel, and molybdenum are evenly distributed. XRD characterization indicates that Co3O4, CoMoO4, CoNiO4, and MoNiO4 co-exist in the composites. It is supposed that Co2+, Mo6+, and Ni2+ in the composites may have synergistic effects on the catalytic oxidation of glucose. Full article
(This article belongs to the Special Issue New Horizons for Heterogeneous Catalysts, 2nd Edition)
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20 pages, 5588 KiB  
Article
The Role of Undecenoic Acid on the Preparation of Decorated MCM-41/Polyethylene Hybrids by In Situ Polymerization: Catalytic Aspects and Properties of the Resultant Materials
by María L. Cerrada, Artur Bento, Ernesto Pérez, João P. Lourenço and M. Rosário Ribeiro
Catalysts 2023, 13(8), 1182; https://doi.org/10.3390/catal13081182 - 02 Aug 2023
Viewed by 794
Abstract
Functionalized polyethylene-based nanocomposites were prepared by in situ polymerization of ethylene with modified or neat MCM-41 nanoparticles (NMCM-41). Two different synthetic approaches were investigated to improve the compatibility between the hydrophobic HDPE matrix and the hydrophilic NMCM-41: (i) incorporation of UA into the [...] Read more.
Functionalized polyethylene-based nanocomposites were prepared by in situ polymerization of ethylene with modified or neat MCM-41 nanoparticles (NMCM-41). Two different synthetic approaches were investigated to improve the compatibility between the hydrophobic HDPE matrix and the hydrophilic NMCM-41: (i) incorporation of UA into the polymeric matrix by copolymerization with ethylene, promoted by the zirconocene catalyst under homogeneous conditions, in the presence of pristine NMCM-41; (ii) use of undecenoic acid (UA) as an interfacial agent to obtain decorated NMCM-41 to be used as nanofiller for the in situ ethylene polymerization, catalyzed by Cp2ZrCl2/MAO under supported conditions. The strong polar character of the carboxylic group is expected to either increase the hydrophilicity of the HDPE chains (strategy i) or interact with the NMCM-41 surface and provide an additional link to the polymeric chains via copolymerization of the vinyl group under supported conditions (strategy ii). Although metallocene catalysts have been shown to copolymerize olefins with functional monomers, the presence of oxygen-containing compounds in the reaction media strongly affects the polymerization activity as a result of the interaction of functional groups with the electrophilic active center of the catalyst. Thus, UA was pre-contacted with tri(isobutyl)aluminum (TIBA) prior to its use in the polymerization to reduce the deactivating character of the carboxylic acid groups towards the zirconocene catalyst. The influence of the UA presence on the polymerization behavior of the protection step is discussed, and the polymerization activities observed for the different approaches are compared. In addition, the thermal behavior and structural details of the resulting materials have been characterized. The impact of using neat or functionalized NMCM-41 on the final dispersion within the polymeric matrix is also analyzed, which is correlated with the mechanical performance exhibited by these HDPE_UA_NMCM-41 nanocomposites. Full article
(This article belongs to the Special Issue New Horizons for Heterogeneous Catalysts, 2nd Edition)
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