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Hybrid Organic−Inorganic Polyoxometalate Compounds

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

Deadline for manuscript submissions: closed (30 November 2019) | Viewed by 6863

Special Issue Editor


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Guest Editor
Department of Chemistry, UFR of Science, Versailles, France
Interests: hybrid organic-inorganic materials; design of composites and nanocomposites; polyoxometalate; Ru(II) and Ir(III) coordination chemistry and photophysical applications
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Special Issue Information

Dear Colleagues,

Since the first Y-ray structure of H3PW12O40.5H2O, by J.F. Keggin, in 1933, the polyoxometalate chemistry has always been an attractive domain and has held the attention of numerous academic and even industrial laboratories, from more than 10 countries worldwide. While as, originally, polyoxometalates were thought of as models with which to study the reactivity of oxygen atoms on an oxide surface, the intrinsic properties of POMs have made them a attractive and unique molecular species. At the end of 20th century, POM chemistry was known as a new field of investigation, involving the design of organic inorganic hybrids, from molecular species to 3D materials. The combination of an inorganic entity with an organic entity presents new perspectives in terms of properties and applications compared to individual entities. So, due to these considerations and synergies between POMS and organic entities, these polyoxometallic clusters constitute a real asset to the design of organic inorganic hybrid compounds or materials. This new field based on POMs can be organized in two main distinct areas: covalent hybrids and non-covalent hybrids. In the first case, the organic entity is covalently linked to POM, while in the second case, an ionic attraction occurs between the two entities. Describing this chemistry in a particular Issue would not reflect the diversity of this field as much the great diversity of these species, whether at the molecular level or at the materials level, because the great diversity of its physical properties and applications are so profound. Thus, we focus this issue only on this new field of hybrid organic inorganic compounds.

In this Issue, focusing on “Organic Inorganic Hybrids Based on Polyoxometale Compounds ”, we want to have an overview of these two classes of hybrids, from molecular species, to organometallic grafted on, to oligo-, to polymers, to nanocomposites, to liquid crystals, to micellar, to supramolecular species, and to materials like porous or mesoporous materials; their methods of characterization; and our deepened understanding of their chemical and physical properties. In addition to the design of these original architectures, we want this Issue to focus on the expected applications of these hybrid compounds, like catalytic activities, batteries, solar cells, photophysical (fluorescence, NLO, etc.), or biomedical (antiviral, anti-tumoral, IRM agents, etc.) applications.

Prof. Dr. Cédric R Mayer
Guest Editor

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Keywords

  • Polyoxometalate
  • Hybrid organic–inorganic
  • Organometallic
  • Structures
  • Materials
  • Composites
  • Applications
  • Characterizations

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Published Papers (1 paper)

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Review

20 pages, 1438 KiB  
Review
Polyoxometalate–Polymer Hybrid Materials as Proton Exchange Membranes for Fuel Cell Applications
by Liang Zhai and Haolong Li
Molecules 2019, 24(19), 3425; https://doi.org/10.3390/molecules24193425 - 20 Sep 2019
Cited by 60 | Viewed by 6348
Abstract
As one of the most efficient pathways to provide clean energy, fuel cells have attracted great attention in both academic and industrial communities. Proton exchange membranes (PEMs) or proton-conducting electrolytes are the key components in fuel cell devices, which require the characteristics of [...] Read more.
As one of the most efficient pathways to provide clean energy, fuel cells have attracted great attention in both academic and industrial communities. Proton exchange membranes (PEMs) or proton-conducting electrolytes are the key components in fuel cell devices, which require the characteristics of high proton conductivity as well as high mechanical, chemical and thermal stabilities. Organic–inorganic hybrid PEMs can provide a fantastic platform to combine both advantages of two components to meet these demands. Due to their extremely high proton conductivity, good thermal stability and chemical adjustability, polyoxometalates (POMs) are regarded as promising building blocks for hybrid PEMs. In this review, we summarize a number of research works on the progress of POM–polymer hybrid materials and related applications in PEMs. Firstly, a brief background of POMs and their proton-conducting properties are introduced; then, the hybridization strategies of POMs with polymer moieties are discussed from the aspects of both noncovalent and covalent concepts; and finally, we focus on the performance of these hybrid materials in PEMs, especially the advances in the last five years. This review will provide a better understanding of the challenges and perspectives of POM–polymer hybrid PEMs for future fuel cell applications. Full article
(This article belongs to the Special Issue Hybrid Organic−Inorganic Polyoxometalate Compounds)
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