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Catalysts
Special Issues
Ceria-Based Heterogeneous Catalysis: Experimental and Theoretical Study
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Ceria-Based Heterogeneous Catalysis: Experimental and Theoretical Study

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

Deadline for manuscript submissions: closed (15 April 2023) | Viewed by 5060

Special Issue Editors

Dr. Yaqiong Su

E-Mail Website
Guest Editor
School of Chemistry, Xi’an Jiaotong University, Xi’an, China
Interests: computational chemistry; density functional theory; molecular dynamics simulation; machine learning; algorithm development; heterogeneous catalysis; energy catalytic materials; electrochemistry; single-atom catalysis; Raman spectroscopy; strong metal-support interaction; electron transfer theory
Dr. Jin-Xun Liu

E-Mail Website
Guest Editor
Department of Chemical Physics, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, China
Interests: heterogeneous catalysis; density functional theory; machine learning; strong metal–support interaction
Prof. Dr. Sen Lin

E-Mail Website
Guest Editor
State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350002, China
Interests: theoretical and computational catalysis; modeling in hetergeneous electrocatalysis/photocatalysis

Special Issue Information

Dear Colleagues,

Cerium is the 25th most abundant element on Earth; therefore, its uses and applications should be examined due to their potential benefits. This crystalline material of ceria has attracted much attention due to its redox and acid-base properties and wide range of applications for chemical transformations and energy applications. Ceria is extensively used in heterogeneous catalytic reactions as a promoter and support material, including thermocatalysis, three-way catalysis, electrocatalysis, and photocatalysis.

This Special Issue is going to be focused on “Ceria-Based Heterogeneous Catalysis: Experimental and Theoretical Study”, featuring up-to-date research findings in this field. The call includes but is not limited to heterogeneous catalysis, and also research on ceria-based biomedical materials and solid-state electrolytes. We hope that this Special Issue can put forward the development of ceria-based catalysts and novel catalytic concepts.

Dr. Yaqiong Su
Dr. Jin-Xun Liu
Prof. Dr. Sen Lin
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

  • ceria
  • heterogeneous catalysis
  • environmental catalysis
  • three-way catalysts
  • solid-state electrolytes
  • electrocatalysis
  • photocatalysis

Published Papers (2 papers)

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Research

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25 pages, 7840 KiB  
Article
Catalytic Oxidative Decomposition of Dimethyl Methyl Phosphonate over CuO/CeO2 Catalysts Prepared Using a Secondary Alkaline Hydrothermal Method
by Weimin Kong, Shuyuan Zhou, Xuwei Wang, Qingrong He, Piaoping Yang, Ye Yuan and Yanchun Dong
Catalysts 2022, 12(10), 1277; https://doi.org/10.3390/catal12101277 - 19 Oct 2022
Cited by 3 | Viewed by 1445
Abstract
Bimetallic synergism plays an important role in lattice-doped catalysts. Therefore, lattice-doped bimetallic CuO/CeO2 catalysts were prepared by secondary alkaline hydrothermal reaction. During this process, the CeO2 nanomaterials were partially dissolved and recrystallized; thus, Cu ions were doped into the CeO2 [...] Read more.
Bimetallic synergism plays an important role in lattice-doped catalysts. Therefore, lattice-doped bimetallic CuO/CeO2 catalysts were prepared by secondary alkaline hydrothermal reaction. During this process, the CeO2 nanomaterials were partially dissolved and recrystallized; thus, Cu ions were doped into the CeO2 lattice. The physical and chemical properties of CeO2, CuO/CeO2, and CuO were investigated. H2 temperature-programmed reduction characterization showed that the oxidation activity of CuO/CeO2 was significantly improved. X-ray photoelectron spectroscopy results showed that electron transfer occurred between Ce and Cu in the CuO/CeO2 catalyst. Additionally, Raman characterization confirmed the strong interaction between Cu and Ce. After CuO was loaded, the thermal catalytic decomposition performance of the catalyst was significantly improved with respect to the sarin simulant dimethyl methyl phosphonate (DMMP); with an increase in the Cu/Ce ratio, the performance first strengthened and then weakened. Additionally, the reaction tail gas and catalyst surface products were analyzed using mass spectrometry and ion chromatography, and the changes in the surface products during the thermal catalytic decomposition of DMMP were characterized at different temperatures using in situ diffuse reflectance infrared Fourier transform spectroscopy. Finally, the catalytic reaction pathways of DMMP on CeO2, CuO/CeO2, and CuO were inferred. The study results not only demonstrate an effective catalyst for the removal of nerve agent but also a feasible preparation method for lattice-doped bimetallic catalysts in the field of environmental protection. Full article
(This article belongs to the Special Issue Ceria-Based Heterogeneous Catalysis: Experimental and Theoretical Study)
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Review

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26 pages, 4601 KiB  
Review
The Emergence of the Ubiquity of Cerium in Heterogeneous Oxidation Catalysis Science and Technology
by James F. Brazdil
Catalysts 2022, 12(9), 959; https://doi.org/10.3390/catal12090959 - 29 Aug 2022
Cited by 5 | Viewed by 2550
Abstract
Research into the incorporation of cerium into a diverse range of catalyst systems for a wide spectrum of process chemistries has expanded rapidly. This has been evidenced since about 1980 in the increasing number of both scientific research journals and patent publications that [...] Read more.
Research into the incorporation of cerium into a diverse range of catalyst systems for a wide spectrum of process chemistries has expanded rapidly. This has been evidenced since about 1980 in the increasing number of both scientific research journals and patent publications that address the application of cerium as a component of a multi-metal oxide system and as a support material for metal catalysts. This review chronicles both the applied and fundamental research into cerium-containing oxide catalysts where cerium’s redox activity confers enhanced and new catalytic functionality. Application areas of cerium-containing catalysts include selective oxidation, combustion, NOx remediation, and the production of sustainable chemicals and materials via bio-based feedstocks, among others. The newfound interest in cerium-containing catalysts stems from the benefits achieved by cerium’s inclusion, which include selectivity, activity, and stability. These benefits arise because of cerium’s unique combination of chemical and thermal stability, its redox active properties, its ability to stabilize defect structures in multicomponent oxides, and its propensity to stabilize catalytically optimal oxidation states of other multivalent elements. This review surveys the origins and some of the current directions in the research and application of cerium oxide-based catalysts. Full article
(This article belongs to the Special Issue Ceria-Based Heterogeneous Catalysis: Experimental and Theoretical Study)
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