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Open Access Article
1 - Polyoxymetal / polymer composites An overview of synthesis methods and their properties
Marziyeh Kavian Milad Ghani Jahan Bakhsh RaoofThis article gives an overview of the manufacturing method and properties of composites containing polyoxymetals / polymers. Polyoxometals (POMs) are discrete, molecular, metal oxide clusters of various sizes ranging from one to several nanometers that exhibit different MoreThis article gives an overview of the manufacturing method and properties of composites containing polyoxymetals / polymers. Polyoxometals (POMs) are discrete, molecular, metal oxide clusters of various sizes ranging from one to several nanometers that exhibit different topologies and diverse chemical and electronic properties. POMs show very strong acidity, which makes them effective acid catalysts for specific reactions such as esterification, hydrolysis, Friedel-Craft alkylation, and tetrahydrofuran ring-opening polymerization. The integration of mineral components with polymer matrices will combine the properties of the mineral phase with polymers and create new functions. Mineral micrometer building blocks have been used to enhance mechanical strength, improve thermal and chemical stability, and improve the performance of polymeric materials. With the rapid development of nanotechnology, polymers can also be used as a substrate for the stabilization of nanostructures, which will eventually have the properties of nanostructures and polymer substrates at the same time. Methods such as physical composition, electrostatic adsorption, covalent bonding, and supermolecular modification are the main methods for combining POM in organic or inorganic polymer matrices (eg silica). Polyoxymetal / polymer composites have various properties such as unique optical, electrical or catalytic properties of polyoxymetals and the optimal processing and stability of polymer matrices. POM/ polymer composites may have many applications in optics, electronics, biology, medicine and catalysis Manuscript profile -
Open Access Article
2 - MOFCOF composites a review of synthesis methods and applications
Milad Ghani Marziyeh KavianIn the past decades, porous materials have attracted a lot of attention in physics, chemistry and materials science. Among various compounds, metal-organic frameworks (Metal organic frameworks, MOFs) and covalent organic frameworks (COFs), as crystalline porous material MoreIn the past decades, porous materials have attracted a lot of attention in physics, chemistry and materials science. Among various compounds, metal-organic frameworks (Metal organic frameworks, MOFs) and covalent organic frameworks (COFs), as crystalline porous materials, were developed at a very high speed. MOFs are a subgroup of porous compounds in which organic ligands are connected together with metal cations. COFs are two- or three-dimensional organic solids with extended structures in which the building blocks are connected by strong covalent bonds. These compounds have unique advantages including well-defined and tunable structures, large surface area, high porosity, and ease of framework modification, which make them ideal host substrates for various guests including polymers, metal oxide nanoparticles, and semiconductors to create Converts MOF or COF-based multistructures. Compared to single-component compounds, polycomposites always show new properties due to their synergistic effects. Therefore, to further improve their performance and expand their applications, many efforts have been made to design and fabricate various MOF or COF-based multi-structures. Therefore, in this study, the integration of MOFs and COFs, their manufacturing methods, and the applications of these multiple structures will be investigated. Moreover, the capability of the prepared sorbents in various fields such as sorbent, catalysis and other format will be discussed. Metal–organic frameworks (MOFs) are a class of compounds consisting of metal clusters (also known as SBUs) coordinated to organic ligands to form one-, two-, or three-dimensional structures. Manuscript profile
List of Articles Marziyeh Kavian
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