Nanoparticles of Metal-Containing Compounds: Fundamental Studies and Applications

A special issue of Inorganics (ISSN 2304-6740). This special issue belongs to the section "Inorganic Solid-State Chemistry".

Deadline for manuscript submissions: closed (31 October 2023) | Viewed by 1129

Special Issue Editor

Department of Analytical Chemistry, National Research Technological University, K. Marx Street 68, 420015 Kazan, Russia
Interests: coordination chemistry; quantum chemistry; chemistry of macrocyclic compounds; nanosciences; scientometrics
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Special Issue Information

Dear Colleagues,

As is known, nanoparticles formed both by elemental metals and their chemical compounds currently play a very important role in modern chemistry and chemical technology. First of all, this applies to chemical compounds containing atoms of p-, d- and/or f-elements. According to the accepted definition, nanoparticles usually include those particles of a substance that have a size in the range of 1 to 100 nm; however, there is also a broad interpretation of this term, within the framework of which they include all particles whose size is less than 100 nm in at least one direction. Particles smaller than 1 nm are usually classified in another category called "clusters of atoms" (although this term, given its origin, cannot be fully recognized as correct). Nanoparticles are widely distributed in nature and are the objects of study in many sciences, including chemistry, physics, geology and biology primarily. Located between bulk materials and atomic or molecular structures, they often demonstrate phenomena that are not observed for macro- and even microparticles. At the same time, they can play both a useful and a harmful role. The first of these manifests itself, for example, in the fact that they are key ingredients in many industrial products, such as paints, plastics, metals, ceramics and magnetic products, acting as a kind of "precursor" for the production of micro- and nanoparticles of metal oxides, metal sulfides and chalcogenides. Metals (which, in turn, seem to be very convenient starting materials for the production of, for example, ceramics, materials, and catalytic and sorption systems) themselves have a number of specific (and very useful) properties from an anthropogenic point of view. They are an important component of environmental pollution. However, be that as it may, it is difficult to find that branch of modern anthropogenic activity in which these objects could not be used; in this regard, it is not by chance that the production of nanoparticles with special properties is singled out as a separate branch of science and technology, called "nanotechnology". Additionally, although this specific branch of science is still quite young, the number of publications and technologies developed in this area is already measured in the hundreds of thousands, which once again emphasizes its significance.

For the purposeful synthesis of nanoparticles, however, it is necessary, on the one hand, to know the specifics of their formation, and on the other hand, to be able to predict their properties and control this process. This side of the development of nanoscience and nanotechnologies, despite the already achieved (and rather significant) successes, cannot yet be considered adequately developed, and the following three main problems need to be addressed:

  • The development of scientific bases for the synthesis of nanoparticles of p-, d-, f-metal-containing chemical compounds;
  • The development of adequate theoretical models (above all, quantum-chemical ones), which make it possible to predict with sufficient reliability the molecular and electronic structures of nanoparticles of the above compounds, as well as their spectral, magnetic, thermal, and other physical and chemical characteristics;
  • The modernization of existing methods and the development of new methods for the synthesis of nanoparticles of the above chemical compounds.

In view of the forementioned, this Special Issue is intended to include primarily original full papers and brief communications on any research that in one way or another aims to solve any of these problems. We also welcome articles that will present results that contribute to the solution of any particular issues not directly related to these problems, but that are related to the nano-objects indicated in the title of this Special Issue (including the improvement of their terminology or metrology, as well as those regarding related historical events and facts). Review articles may also be submitted for publication in this Special Issue.

Prof. Dr. Oleg V. Mikhailov
Guest Editor

Manuscript Submission Information

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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. Inorganics is an international peer-reviewed open access monthly journal published by MDPI.

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Keywords

  • nanoparticles
  • synthesis
  • molecular structure
  • p-, d-, and f-metals
  • quantum-chemical modeling
  • physico-chemical research methods

Published Papers (1 paper)

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Research

15 pages, 8049 KiB  
Article
Physicochemical Fundamentals of the Synthesis of a Cu@BN Composite Consisting of Nanosized Copper Enclosed in a Boron Nitride Matrix
Inorganics 2023, 11(8), 345; https://doi.org/10.3390/inorganics11080345 - 21 Aug 2023
Cited by 1 | Viewed by 922
Abstract
The thermal reduction of the copper(II) complexes [CuII(N2H4)3][B10H10nH2O (I·nH2O) and [CuII(NH3)4][B10H10 [...] Read more.
The thermal reduction of the copper(II) complexes [CuII(N2H4)3][B10H10nH2O (I·nH2O) and [CuII(NH3)4][B10H10nH2O (II·nH2O) has been studied in an argon atmosphere at 900 °C. It has been found that the annealing of both compounds results in a Cu@BN boron-containing copper composite. It has been shown that this process leads to the formation of a boron nitride matrix doped with cubic copper(0) nanoparticles due to the copper(II)→copper(I)→copper(0) thermal reduction. The phase composition of annealing products I900 and II900 has been determined based on powder X-ray diffraction, IR spectroscopy and thermal analysis data. The morphology, average particle size and composition of the composite have been determined by TEM and high-resolution TEM + EDS. The average particle size has been found to be about 81 nm and 52 nm for samples I900 and II900, respectively. Comparison of the results obtained using physicochemical studies has shown the identity of the composition of the products of annealing I900 and II900. The electrical properties of a coating based on an I900 sample modified with Cu0→Cu2O in situ during deposition on a chip at 300 °C in air have been studied. As a result, with increasing temperature, an increase in the electrical conductivity characteristic of semiconductors has been observed. Full article
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