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Synthesis and Application of Catalytic Materials
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Synthesis and Application of Catalytic Materials

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Catalytic Materials".

Deadline for manuscript submissions: closed (20 January 2024) | Viewed by 3966

Special Issue Editors

Dr. Debtanu Maiti

E-Mail Website
Guest Editor
Staff Scientist, Principal Researcher, Catalysis and Transient Kinetics Group, Idaho National Laboratory, 775 MK Simpson Blvd, Idaho Falls, ID 83401, USA
Interests: Heterogeneous catalysis; materials; sustainable energy; hydrocarbon chemistry; ab-initio simulations; transient kinetics; temporal analysis of products (TAP) experiments
Dr. Xianhui Zhao

E-Mail Website
Guest Editor
Oak Ridge National Laboratory Environmental Sciences Division, P.O. Box 2008, Oak Ridge, TN 37831-6351, USA
Interests: biomass and biofuel; waste recycling and upcycling; 3D printing and sustainable material; applied catalysis and CO2 utilization; polymer composite and fiber-matrix interface; pyrolysis, biogas reforming, and Fischer–Tropsch synthesis

Special Issue Information

Dear Colleagues,

Heterogeneous catalysis forms a core backbone of global chemical manufacturing. With the ever-increasing demand for high-value hydrocarbons and hydrocarbon derivatives, along with the significant thrust towards energy efficiency and reducing environmental footprints, there have been tremendous efforts to address the need of the hour—developing high-performance robust catalysts and catalytic reactors. Catalysts hold the key towards enhanced reaction rates, desired product selectivity, improved energy efficiency, and more. The strategic design of catalysts, from single-atom alloys, layered structures, and bifunctional catalysts to earth-abundant transition metal substitutions for precious platinum group metals (PGM) has paved the way for energy-efficient, sustainable chemical reactions.

This Special Issue aims to present some of the promising developments in the rational design and synthesis of heterogeneous catalysts, and their application towards improved catalytic reactions. The articles in this issue will cover topics including, but not limited to, the synthesis of novel catalytic materials, reduction in PGM content, extending catalyst lifetimes, and enhancing catalyst performance via photochemical, thermochemical, and electrochemical routes. Fundamental studies towards elucidating material chemistry and catalytic-reaction mechanisms are encouraged.

Dr. Debtanu Maiti
Dr. Xianhui Zhao
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. Materials is an international peer-reviewed open access semimonthly 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 2600 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
  • sustainable chemistry
  • energy efficiency
  • transition metals
  • metal oxides
  • zeolites
  • reaction mechanism

Published Papers (3 papers)

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Research

14 pages, 3583 KiB  
Article
Harvesting Vibration Energy for Efficient Cocatalyst-Free Sonocatalytic H2 Production over Magnetically Separable Ultra-Low-Cost Fe3O4
by Kailai Zhang, Xiaodong Sun, Haijun Hu, Anqi Qin, Hongwei Huang, Yali Yao, Yusheng Zhang and Tianyi Ma
Materials 2024, 17(7), 1463; https://doi.org/10.3390/ma17071463 - 22 Mar 2024
Viewed by 514
Abstract
The cavitation effect is an important geochemical phenomenon, which generally exists under strong hydrodynamic conditions. Therefore, developing an economical and effective sonocatalyst becomes a vital method in capitalizing on the cavitation effect for energy generation. In this study, we first report a novel [...] Read more.
The cavitation effect is an important geochemical phenomenon, which generally exists under strong hydrodynamic conditions. Therefore, developing an economical and effective sonocatalyst becomes a vital method in capitalizing on the cavitation effect for energy generation. In this study, we first report a novel Fe3O4 sonocatalyst that can be easily separated using a magnetic field and does not require any additional cocatalysts for H2 production from H2O. When subjected to ultrasonic vibration, this catalyst achieves an impressive H2 production rate of up to 175 μmol/h/USD (where USD stands for dollars), surpassing most previously reported mechanical catalytic materials. Furthermore, the ease and efficiency of separating this catalyst using an external magnetic field, coupled with its effortless recovery, highlight its significant potential for practical applications. By addressing the key limitations of conventional sonocatalysts, our study not only demonstrates the feasibility of using Fe3O4 as a highly efficient sonocatalyst but also showcases the exciting possibility of using a new class of magnetically separable sonocatalysts to productively transform mechanical energy into chemical energy. Full article
(This article belongs to the Special Issue Synthesis and Application of Catalytic Materials)
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14 pages, 6393 KiB  
Article
Adsorption and Photodegradation of Lanasol Yellow 4G in Aqueous Solution by Natural Zeolite Treated by CO2-Laser Radiation
by David Correa-Coyac, Alexandre Michtchenko, Gregorio Zacahua-Tlacuatl, Yair Cruz-Narváez, José J. Castro-Arellano, Monserrat Sanpedro-Díaz, Carlos F. de J. Rivera-Talamantes and Yury M. Shulga
Materials 2023, 16(13), 4855; https://doi.org/10.3390/ma16134855 - 6 Jul 2023
Viewed by 1937
Abstract
Natural zeolite is a widely used material with excellent environmental cleaning performance, especially in water and wastewater treatment. Natural zeolite (Zini) calcined by CO2-laser radiation (ZL) was tested as a catalyst for the photodegradation and the adsorption of industrial [...] Read more.
Natural zeolite is a widely used material with excellent environmental cleaning performance, especially in water and wastewater treatment. Natural zeolite (Zini) calcined by CO2-laser radiation (ZL) was tested as a catalyst for the photodegradation and the adsorption of industrial azo dye Lanasol Yellow 4G (LY4G) in water. Morphology, chemical structure, and surface composition of Zini and ZL were analyzed by XRD, SEM, EDS, and XPS. UV/Visible spectrophotometry was used to evaluate the photocatalytic activity of Zini and ZL. The photocatalytic activity of the studied zeolites was associated with the presence of Fe oxides in their composition. Laser-treated natural zeolite showed higher efficiency as a photocatalyst compared to untreated natural zeolite. Full article
(This article belongs to the Special Issue Synthesis and Application of Catalytic Materials)
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17 pages, 6678 KiB  
Article
Systematic Investigation on Supported Gold Catalysts Prepared by Fluorine-Free Basic Etching Ti3AlC2 in Selective Oxidation of Aromatic Alcohols to Aldehydes
by Hangwei Jiang, Xiya Chen, Danlan Cui, Kun Lu, Xiao Kong and Xingguang Zhang
Materials 2023, 16(8), 3139; https://doi.org/10.3390/ma16083139 - 16 Apr 2023
Cited by 1 | Viewed by 1146
Abstract
Conventional methods to prepare supported metal catalysts are chemical reduction and wet impregnation. This study developed and systematically investigated a novel reduction method based on simultaneous Ti3AlC2 fluorine-free etching and metal deposition to prepare gold catalysts. The new series of [...] Read more.
Conventional methods to prepare supported metal catalysts are chemical reduction and wet impregnation. This study developed and systematically investigated a novel reduction method based on simultaneous Ti3AlC2 fluorine-free etching and metal deposition to prepare gold catalysts. The new series of Aupre/Ti3AlxC2Ty catalysts were characterized by XRD, XPS, TEM, and SEM and were tested in the selective oxidation of representative aromatic alcohols to aldehydes. The catalytic results demonstrate the effectiveness of the preparation method and better catalytic performances of Aupre/Ti3AlxC2Ty, compared with those of catalysts prepared by traditional methods. Moreover, this work presents a comprehensive study on the influence of calcination in air, H2, and Ar, and we found that the catalyst of Aupre/Ti3AlxC2Ty-Air600 obtained by calcination in air at 600 °C performed the best, owing to the synergistic effect between tiny surface TiO2 species and Au NPs. The tests of reusability and hot filtration confirmed the catalyst stability. Full article
(This article belongs to the Special Issue Synthesis and Application of Catalytic Materials)
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