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Molecules
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Transition Metal Compounds: Challenges and Breakthrough
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Transition Metal Compounds: Challenges and Breakthrough

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Inorganic Chemistry".

Deadline for manuscript submissions: closed (31 December 2024) | Viewed by 2897

Special Issue Editors

Dr. Huimin Guo

E-Mail Website
Guest Editor
School of Chemistry, State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
Interests: transition metal complexes; photosensitizer; oxygen sensing; up-conversion; photodynamic therapy
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Tao Hu

E-Mail Website
Guest Editor
School of Chemistry, State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
Interests: zeolites; electrode materials; supercapacitor; silicate; energy storage materials
Special Issues, Collections and Topics in MDPI journals
Dr. Xin Liu

grade E-Mail Website
Guest Editor
School of Chemistry, State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
Interests: nonhomogeneous catalysis; theoretical chemistry; gases adsorption; computational chemistry; reaction mechanisms
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Considerable research attention has been focused on compounds and materials originating from transition metals (TMs), ranging from 0D molecular organo-transition metal compounds, TM complexes, clusters and quantum dots of TMs and related compounds, etc. to their composites and assemblies in condensed phases, including metal organic frameworks, various TM oxides, nitrides, carbides, etc., for their outstanding performance in energy harvesting, storage and conversion, chemical transformation, environment preservation, disease diagnosis and therapy, etc., that are of both fundamental and industrial significance. Though numerous breakthroughs are being achieved, there are still many challenges to be addressed.

This Special Issue of the journal Molecules is thus devoted to highlighting recent advances and breakthroughs in field of TM chemistry, going from molecular science to materials and their vast applications in science and technology. This Special Issue welcomes reviews as well as research articles, not only on experimental synthesis, characterization, and applications of TM-related compounds in all fields of chemistry and chemical engineering, but also parallel theoretical investigations concerning electronic structure, thermodynamics, microscopic mechanisms, etc., to address the physical origin for the outstanding performance of these TM-related compounds.

Dr. Huimin Guo
Prof. Dr. Tao Hu
Dr. Xin Liu
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. Molecules 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 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

  • energy storage materials
  • catalysis
  • photoelectric transformation
  • photochemistry and photophysics
  • electrode materials
  • transition metal complexes
  • molecular spectrum
  • reaction mechanisms
  • first-principles-based calculations

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Published Papers (2 papers)

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Research

12 pages, 2269 KiB  
Article
Ligand Strategies for Regulating Atomically Precise CeO2 Nanoparticles: From Structure to Property
by Peiling Du, Simin Li, Qinghua Xu, Ayisha He, Wei Yuan, Xinping Qu, Baimei Tan, Xinhuan Niu, Fan Zhang and Hui Shen
Molecules 2025, 30(4), 846; https://doi.org/10.3390/molecules30040846 - 12 Feb 2025
Viewed by 750
Abstract
The increasing interest in studying the structure–property relationships of ceria dioxide (CeO2) relies on the fact that many factors are key to determining the performance of CeO2 materials. Despite the great advances achieved, it remains a formidable challenge to regulate [...] Read more.
The increasing interest in studying the structure–property relationships of ceria dioxide (CeO2) relies on the fact that many factors are key to determining the performance of CeO2 materials. Despite the great advances achieved, it remains a formidable challenge to regulate CeO2 nanoparticles at the molecular level and gain in-depth insight into their structure–property relationships. What is reported here is a ligand strategy for regulating CeO2 nanoparticles, in terms of not only shape, structure, surface composition, but also property. Atomically precise CeO2 nanoparticles (also named nanoclusters) are used as a model system, in which two Ce16 clusters are gained by a wet-chemical synthesis method. Featuring different carboxylate ligands on the surface, the two clusters are distinct in formula, core geometry, surface composition, and photoelectric merits. This work not only reports the first pair of atomically precise CeO2 nanoclusters with the same number of Ce atoms but different structures, which is highly desirable for studying structure–property relationships, but also provides in-depth insight into the molecular ligand effect in CeO2 materials. Full article
(This article belongs to the Special Issue Transition Metal Compounds: Challenges and Breakthrough)
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12 pages, 2880 KiB  
Article
LaMnO3-Type Perovskite Nanofibers as Effective Catalysts for On-Cell CH4 Reforming via Solid Oxide Fuel Cells
by Yangbo Jia, Tong Wei, Zhufeng Shao, Yunpeng Song, Xue Huang, Beila Huang, Chen Cao and Yufan Zhi
Molecules 2024, 29(15), 3654; https://doi.org/10.3390/molecules29153654 - 1 Aug 2024
Viewed by 1196
Abstract
CH4 has become the most attractive fuel for solid oxide fuel cells due to its wide availability, narrow explosion limit range, low price, and easy storage. Thus, we present the concept of on-cell reforming via SOFC power generation, in which CH4 [...] Read more.
CH4 has become the most attractive fuel for solid oxide fuel cells due to its wide availability, narrow explosion limit range, low price, and easy storage. Thus, we present the concept of on-cell reforming via SOFC power generation, in which CH4 and CO2 can be converted into H2 and the formed H2 is electrochemically oxidized on a Ni-BZCYYb anode. We modified the porosity and specific surface area of a perovskite reforming catalyst via an optimized electrostatic spinning method, and the prepared LCMN nanofibers, which displayed an ideal LaMnO3-type perovskite structure with a high specific surface area, were imposed on a conventional Ni-BZCYYb anode for on-cell CH4 reforming. Compared to LCMN nanoparticles used as on-cell reforming catalysts, the NF-SOFC showed lower ohmic and polarization resistances, indicating that the porous nanofibers could reduce the resistances of fuel gas transport and charge transport in the anode. Accordingly, the NF-SOFC displayed a maximum power density (MPD) of 781 mW cm−2 and a stable discharge voltage of around 0.62 V for 72 h without coking in the Ni-BZCYYb anode. The present LCMN NF materials and on-cell reforming system demonstrated stability and potential for highly efficient power generation with hydrocarbon fuels. Full article
(This article belongs to the Special Issue Transition Metal Compounds: Challenges and Breakthrough)
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