Topic Editors

Institute of Geotechnics, Slovak Academy of Sciences, 04001 Košice, Slovakia
Dr. Abhishek Lokhande
Department of Mechanical Engineering, Khalifa University of Science and Technology, P. O. Box 127788, Abu Dhabi, United Arab Emirates
Institute of geotechnics, Slovak Academy of Sciences, Košice, Slovakia

Advances in Inorganic Mechanochemistry for Applications in Materials Science

Abstract submission deadline
closed (31 October 2022)
Manuscript submission deadline
closed (31 December 2022)
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Topic Information

Dear Colleagues,

Mechanochemistry is currently experiencing a rapid development in the field of organic chemistry, as it was discovered that it is possible to prepare the desired products not accessible by traditional solution chemistry in the absence of solvents. However, mechanochemistry is also well applicable in the field of materials science, where the high-energy milling process is used either as a synthesis step to prepare inorganic nanomaterials applicable in advanced applications or to introduce defects or dopants into the crystalline structure, which can dramatically improve the application potential. The aim of the present Special Issue is to accommodate potential papers on the mechanochemical synthesis of inorganic materials (e.g., chalcogenides, oxides, carbides, hydrides, metallic nanoparticles) applicable in any field of materials science, where high-energy ball milling to prepare the desired materials and the application potential is clearly shown.

Related Conference: 10th International Conference on Mechanochemistry and Mechanical Alloying 2022 (INCOME2022)

Dr. Matej Baláž
Dr. Abhishek Lokhande
Dr. Marcela Achimovičová
Topic Editors

Keywords

  • mechanochemistry
  • high-energy ball milling
  • nanomaterials
  • inorganic materials
  • applications

Participating Journals

Journal Name Impact Factor CiteScore Launched Year First Decision (median) APC
Chemistry
chemistry
2.1 2.5 2019 19.1 Days CHF 1800
Molecules
molecules
4.6 6.7 1996 14.6 Days CHF 2700
Nanomaterials
nanomaterials
5.3 7.4 2010 13.6 Days CHF 2900
Solids
solids
- - 2020 17.5 Days CHF 1000

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Published Papers (3 papers)

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15 pages, 5026 KiB  
Article
Exploring the Multifunctionality of Mechanochemically Synthesized γ-Alumina with Incorporated Selected Metal Oxide Species
by Rabindra Dubadi, Ewelina Weidner, Bogdan Samojeden, Teofil Jesionowski, Filip Ciesielczyk, Songping Huang and Mietek Jaroniec
Molecules 2023, 28(5), 2002; https://doi.org/10.3390/molecules28052002 - 21 Feb 2023
Cited by 3 | Viewed by 1597
Abstract
γ-Alumina with incorporated metal oxide species (including Fe, Cu, Zn, Bi, and Ga) was synthesized by liquid-assisted grinding—mechanochemical synthesis, applying boehmite as the alumina precursor and suitable metal salts. Various contents of metal elements (5 wt.%, 10 wt.%, and 20 wt.%) were used [...] Read more.
γ-Alumina with incorporated metal oxide species (including Fe, Cu, Zn, Bi, and Ga) was synthesized by liquid-assisted grinding—mechanochemical synthesis, applying boehmite as the alumina precursor and suitable metal salts. Various contents of metal elements (5 wt.%, 10 wt.%, and 20 wt.%) were used to tune the composition of the resulting hybrid materials. The different milling time was tested to find the most suitable procedure that allowed the preparation of porous alumina incorporated with selected metal oxide species. The block copolymer, Pluronic P123, was used as a pore-generating agent. Commercial γ−alumina (SBET = 96 m2·g−1), and the sample fabricated after two hours of initial grinding of boehmite (SBET = 266 m2·g−1), were used as references. Analysis of another sample of γ-alumina prepared within 3 h of one-pot milling revealed a higher surface area (SBET = 320 m2·g−1) that did not increase with a further increase in the milling time. So, three hours of grinding time were set as optimal for this material. The synthesized samples were characterized by low-temperature N2 sorption, TGA/DTG, XRD, TEM, EDX, elemental mapping, and XRF techniques. The higher loading of metal oxide into the alumina structure was confirmed by the higher intensity of the XRF peaks. Samples synthesized with the lowest metal oxide content (5 wt.%) were tested for selective catalytic reduction of NO with NH3 (NH3-SCR). Among all tested samples, besides pristine Al2O3 and alumina incorporated with gallium oxide, the increase in reaction temperature accelerated the NO conversion. The highest NO conversion rate was observed for Fe2O3-incorporated alumina (70%) at 450 °C and CuO-incorporated alumina (71%) at 300 °C. The CO2 capture was also studied for synthesized samples and the sample of alumina with incorporated Bi2O3 (10 wt.%) gave the best result (1.16 mmol·g−1) at 25 °C, while alumina alone could adsorb only 0.85 mmol·g−1 of CO2. Furthermore, the synthesized samples were tested for antimicrobial properties and found to be quite active against Gram-negative bacteria, P. aeruginosa (PA). The measured Minimum Inhibitory Concentration (MIC) values for the alumina samples with incorporated Fe, Cu, and Bi oxide (10 wt.%) were found to be 4 µg·mL−1, while 8 µg·mL−1 was obtained for pure alumina. Full article
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12 pages, 4404 KiB  
Article
Mechanochemical Synthesis of Nickel Mono- and Diselenide: Characterization and Electrical and Optical Properties
by Marcela Achimovičová, Michal Hegedüs, Vladimír Girman, Maksym Lisnichuk, Erika Dutková, Juraj Kurimský and Jaroslav Briančin
Nanomaterials 2022, 12(17), 2952; https://doi.org/10.3390/nano12172952 - 26 Aug 2022
Cited by 1 | Viewed by 1267
Abstract
Nickel mono- (NiSe) and diselenide (NiSe2) were produced from stoichiometric mixtures of powdered Ni and Se precursors by the one-step, undemanding mechanochemical reactions. The process was carried out by high-energy milling for 30 and 120 min in a planetary ball mill. [...] Read more.
Nickel mono- (NiSe) and diselenide (NiSe2) were produced from stoichiometric mixtures of powdered Ni and Se precursors by the one-step, undemanding mechanochemical reactions. The process was carried out by high-energy milling for 30 and 120 min in a planetary ball mill. The kinetics of the reactions were documented, and the products were studied in terms of their crystal structure, morphology, electrical, and optical properties. X-ray powder diffraction confirmed that NiSe has hexagonal and NiSe2 cubic crystal structure with an average crystallite size of 10.5 nm for NiSe and 13.3 nm for NiSe2. Their physical properties were characterized by the specific surface area measurements and particle size distribution analysis. Transmission electron microscopy showed that the prepared materials contain nanoparticles of irregular shape, which are agglomerated into clusters of about 1–2 μm in diameter. The first original values of electrical conductivity, resistivity, and sheet resistance of nickel selenides synthesized by milling were measured. The obtained bandgap energy values determined using UV–Vis spectroscopy confirmed their potential use in photovoltaics. Photoluminescence spectroscopy revealed weak luminescence activity of the materials. Such synthesis of nickel selenides can easily be carried out on a large scale by milling in an industrial mill, as was verified earlier for copper selenide synthesis. Full article
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11 pages, 2859 KiB  
Article
Conversion Study on the Formation of Mechanochemically Synthesized BaTiO3
by Gábor Kozma, Kata Lipták, Cora Deák, Andrea Rónavári, Ákos Kukovecz and Zoltán Kónya
Chemistry 2022, 4(2), 592-602; https://doi.org/10.3390/chemistry4020042 - 15 Jun 2022
Cited by 1 | Viewed by 1501
Abstract
Mechanochemistry is a method that can cover the energy demand of reaction pathways between solid materials. This requires enough energy to maintain the reactions between the starting materials. This is called “high-energy milling”. In our case, a planetary ball mill provided the required [...] Read more.
Mechanochemistry is a method that can cover the energy demand of reaction pathways between solid materials. This requires enough energy to maintain the reactions between the starting materials. This is called “high-energy milling”. In our case, a planetary ball mill provided the required energy. Using the Burgio-equation, the required energy is determinable; the energy released during a single impact of a milling ball (Eb), as well as during the whole milling process (Ecum). The aim of this work was the one-step production of BaTiO3 from BaO and TiO2 starting materials. Whereas during mechanochemical reactions it is possible to produce nanoparticles of up to 10 nm, the essence of this study is to develop the preparation of BaTiO3 with a perovskite structure even without subsequent heat treatment, since sintering at high temperatures is associated with a rapid increase in the size of the particles. By describing the synthesis parameters and their energy values (Eb and Ecum), it is possible to transpose experimental conditions, so that in the case of other types of planetary ball mills or grinding vessel made of other materials, the results can be used. In this study, the mechanical treatment was carried out with a Fritsch Pulverisette-6 planetary ball mill and the transformation of the starting materials was investigated by X-ray diffractometric, Raman and Energy-dispersive X-ray spectroscopic, and transmission electron microscopic measurements. Full article
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