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Haneef J, Ali S. Multicomponent Amorphous Solid Forms of Telmisartan: Insights into Mechanochemical Activation and Physicochemical Attributes. AAPS PharmSciTech 2024; 25:84. [PMID: 38605282 DOI: 10.1208/s12249-024-02799-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 03/27/2024] [Indexed: 04/13/2024] Open
Abstract
The present work aims to explore the new solid forms of telmisartan (TEL) with alpha-ketoglutaric acid (KGA) and glutamic acid (GA) as potential coformers using mechanochemical approach and their role in augmentation in physicochemical parameters over pure crystalline TEL. Mechanochemical synthesis was performed using 1:1 stoichiometric ratio of TEL and the selected coformers in the presence of catalytic amount of ethanol for 1 h. The ground product was characterized by PXRD, DSC, and FTIR. The new solid forms were evaluated for apparent solubility, intrinsic dissolution, and physical stability. Preliminary characterization revealed the amorphization of the mechanochemical product as an alternate outcome of cocrystallization screening. Mechanistic understanding of the amorphous phase highlights the formation of amorphous-mediated cocrystallization that involves three steps, viz., molecular recognition, intermediate amorphous phase, and product nucleation. The solubility curves of both multicomponent amorphous solid forms (TEL-KGA and TEL-GA) showed the spring-parachute effect and revealed significant augmentation in apparent solubility (8-10-folds), and intrinsic dissolution release (6-9-folds) as compared to the pure drug. Besides, surface anisotropy and differential elemental distributions in intrinsic dissolution compacts of both solid forms were confirmed by FESEM and EDX mapping. Therefore, amorphous phases prepared from mechanochemical synthesis can serve as a potential solid form for the investigation of a cocrystal through amorphous-mediated cocrystallization. This has greater implications in solubility kinetics wherein the rapid precipitation of the amorphous phase can be prevented by the metastable cocrystal phase and contribute to the significant augmentation in the physicochemical parameters.
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Affiliation(s)
- Jamshed Haneef
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, 110062, India.
| | - Shakir Ali
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, 110062, India
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2
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Bezerra LS, Belhout SA, Wang S, Quiroz J, de Oliveira PFM, Shetty S, Rocha G, Santos HLS, Frindy S, Oropeza FE, de la Peña O'Shea VA, Kallio AJ, Huotari S, Huo W, Camargo PHC. Triple Play of Band Gap, Interband, and Plasmonic Excitations for Enhanced Catalytic Activity in Pd/H xMoO 3 Nanoparticles in the Visible Region. ACS Appl Mater Interfaces 2024; 16:11467-11478. [PMID: 38382920 DOI: 10.1021/acsami.3c17101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
Plasmonic photocatalysis has been limited by the high cost and scalability of plasmonic materials, such as Ag and Au. By focusing on earth-abundant photocatalyst/plasmonic materials (HxMoO3) and Pd as a catalyst, we addressed these challenges by developing a solventless mechanochemical synthesis of Pd/HxMoO3 and optimizing photocatalytic activities in the visible range. We investigated the effect of HxMoO3 band gap excitation (at 427 nm), Pd interband transitions (at 427 nm), and HxMoO3 localized surface plasmon resonance (LSPR) excitation (at 640 nm) over photocatalytic activities toward the hydrogen evolution and phenylacetylene hydrogenation as model reactions. Although both excitation wavelengths led to comparable photoenhancements, a 110% increase was achieved under dual excitation conditions (427 + 640 nm). This was assigned to a synergistic effect of optical excitations that optimized the generation of energetic electrons at the catalytic sites. These results are important for the development of visible-light photocatalysts based on earth-abundant components.
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Affiliation(s)
- Leticia S Bezerra
- Department of Chemistry, University of Helsinki, A.I. Virtasen aukio 1, PO Box 55, Helsinki 00014, Finland
| | - Samir A Belhout
- Department of Chemistry, University of Helsinki, A.I. Virtasen aukio 1, PO Box 55, Helsinki 00014, Finland
| | - Shiqi Wang
- Department of Chemistry, University of Helsinki, A.I. Virtasen aukio 1, PO Box 55, Helsinki 00014, Finland
| | - Jhon Quiroz
- Department of Chemistry, University of Helsinki, A.I. Virtasen aukio 1, PO Box 55, Helsinki 00014, Finland
| | - Paulo F M de Oliveira
- Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo. Av. Lineu Prestes 748, São Paulo 05508000, Brazil
| | - Shwetha Shetty
- Department of Chemistry, University of Helsinki, A.I. Virtasen aukio 1, PO Box 55, Helsinki 00014, Finland
| | - Guilherme Rocha
- Department of Chemistry, University of Helsinki, A.I. Virtasen aukio 1, PO Box 55, Helsinki 00014, Finland
| | - Hugo L S Santos
- Department of Chemistry, University of Helsinki, A.I. Virtasen aukio 1, PO Box 55, Helsinki 00014, Finland
| | - Sana Frindy
- Department of Chemistry, University of Helsinki, A.I. Virtasen aukio 1, PO Box 55, Helsinki 00014, Finland
| | - Freddy E Oropeza
- Photoactivated Processes Unit, IMDEA Energy Institute, Avda. Ramón de la Sagra 3, Mostoles, Madrid 28935, Spain
| | - Víctor A de la Peña O'Shea
- Photoactivated Processes Unit, IMDEA Energy Institute, Avda. Ramón de la Sagra 3, Mostoles, Madrid 28935, Spain
| | - Antti-Jussi Kallio
- Department of Physics, University of Helsinki, P.O. Box 64, Helsinki 00014, Finland
| | - Simo Huotari
- Department of Physics, University of Helsinki, P.O. Box 64, Helsinki 00014, Finland
| | - Wenyi Huo
- College of Mechanical and Electrical Engineering, Nanjing Forestry University, Nanjing 210037, P. R. China
- NOMATEN Centre of Excellence, National Centre for Nuclear Research. Otwock 05-400, Poland
| | - Pedro H C Camargo
- Department of Chemistry, University of Helsinki, A.I. Virtasen aukio 1, PO Box 55, Helsinki 00014, Finland
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Kurumada S, Yamanashi R, Sugita K, Kubota K, Ito H, Ikemoto S, Chen C, Moriyama T, Muratsugu S, Tada M, Koitaya T, Ozaki T, Yamashita M. Mechanochemical Synthesis of Non-Solvated Dialkylalumanyl Anion and XPS Characterization of Al(I) and Al(II) Species. Chemistry 2024; 30:e202303073. [PMID: 38018466 DOI: 10.1002/chem.202303073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 11/28/2023] [Accepted: 11/29/2023] [Indexed: 11/30/2023]
Abstract
A non-solvated alkyl-substituted Al(I) anion dimer was synthesized by a reduction of haloalumane precursor using a mechanochemical method. The crystallographic and theoretical analysis revealed its structure and electronic properties. Experimental XPS analysis of the Al(I) anions with reference compounds revealed the lower Al 2p binding energy corresponds to the lower oxidation state of Al species. It should be emphasized that the experimentally obtained XPS binding energies were reproduced by delta SCF calculations and were linearly correlated with NPA charges and 2p orbital energies.
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Grants
- 21H01915 Ministry of Education, Culture, Sports, Science and Technology
- 22H00335 Ministry of Education, Culture, Sports, Science and Technology
- 20H04808 Ministry of Education, Culture, Sports, Science and Technology
- 23H01973 Ministry of Education, Culture, Sports, Science and Technology
- JPMJCR19R1 Japan Science and Technology Corporation
- JPMJFR201I Japan Science and Technology Corporation
- 202115731 Japan Society for the Promotion of Science London
- 22J23885 Japan Society for the Promotion of Science London
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Affiliation(s)
- Satoshi Kurumada
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, 464-8603, Nagoya, Aichi, Japan
| | - Ryotaro Yamanashi
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, 464-8603, Nagoya, Aichi, Japan
| | - Kengo Sugita
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, 464-8603, Nagoya, Aichi, Japan
| | - Koji Kubota
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, 060-8628, Sapporo, Hokkaido, Japan
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, 060-8628, Sapporo, Hokkaido, Japan
| | - Hajime Ito
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, 060-8628, Sapporo, Hokkaido, Japan
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, 060-8628, Sapporo, Hokkaido, Japan
| | - Satoru Ikemoto
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, 464-8603, Nagoya, Aichi, Japan
| | - Chaoqi Chen
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, 464-8603, Nagoya, Aichi, Japan
| | - Takumi Moriyama
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, 464-8603, Nagoya, Aichi, Japan
| | - Satoshi Muratsugu
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, 464-8603, Nagoya, Aichi, Japan
- Integrated Research Consortium on Chemical Science (IRCCS), Nagoya University, Furo-cho, Chikusa-ku, 464-8602, Nagoya, Aichi, Japan
| | - Mizuki Tada
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, 464-8603, Nagoya, Aichi, Japan
- Integrated Research Consortium on Chemical Science (IRCCS), Nagoya University, Furo-cho, Chikusa-ku, 464-8602, Nagoya, Aichi, Japan
- Research Center for Materials Science (RCMS), Nagoya University, Furo-cho, Chikusa-ku, 464-8602, Nagoya, Aichi, Japan
| | - Takanori Koitaya
- Department of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, 606-8502, Kyoto, Japan
| | - Taisuke Ozaki
- The Institute for Solid State Physics, The University of Tokyo, 5-1-5 Kashiwanoha, 277-8581, Kashiwa, Chiba, Japan
| | - Makoto Yamashita
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, 464-8603, Nagoya, Aichi, Japan
- Integrated Research Consortium on Chemical Science (IRCCS), Nagoya University, Furo-cho, Chikusa-ku, 464-8602, Nagoya, Aichi, Japan
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Jang JW, Cha I, Choi J, Han J, Hwang JY, Cho IG, Son SU, Kang EJ, Song C. Biomass- and Carbon Dioxide-Derived Polyurethane Networks for Thermal Interface Material Applications. Polymers (Basel) 2024; 16:177. [PMID: 38256976 PMCID: PMC10820237 DOI: 10.3390/polym16020177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/23/2023] [Accepted: 01/04/2024] [Indexed: 01/24/2024] Open
Abstract
Recent environmental concerns have increased demand for renewable polymers and sustainable green resource usage, such as biomass-derived components and carbon dioxide (CO2). Herein, we present crosslinked polyurethanes (CPUs) fabricated from CO2- and biomass-derived monomers via a facile solvent-free ball milling process. Furan-containing bis(cyclic carbonate)s were synthesized through CO2 fixation and further transformed to tetraols, denoted FCTs, by aminolysis and utilized in CPU synthesis. Highly dispersed polyurethane-based hybrid composites (CPU-Ag) were also manufactured using a similar ball milling process. Due to the malleability of the CPU matrix, enabled by transcarbamoylation (dynamic covalent chemistry), CPU-based composites are expected to present very low interfacial thermal resistance between the heat sink and heat source. The characteristics of the dynamic covalent bond (i.e., urethane exchange reaction) were confirmed by the results of dynamic mechanical thermal analysis and stress relaxation analysis. Importantly, the high thermal conductivity of the CPU-based hybrid material was confirmed using laser flash analysis (up to 51.1 W/m·K). Our mechanochemical approach enables the facile preparation of sustainable polymers and hybrid composites for functional application.
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Affiliation(s)
- Ji Won Jang
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Republic of Korea; (J.W.J.); (I.C.); (J.H.); (I.G.C.); (S.U.S.)
| | - Inhwan Cha
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Republic of Korea; (J.W.J.); (I.C.); (J.H.); (I.G.C.); (S.U.S.)
| | - Junhyeon Choi
- Department of Applied Chemistry, Kyung Hee University, Yongin 17104, Republic of Korea; (J.C.); (J.Y.H.)
| | - Jungwoo Han
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Republic of Korea; (J.W.J.); (I.C.); (J.H.); (I.G.C.); (S.U.S.)
| | - Joon Young Hwang
- Department of Applied Chemistry, Kyung Hee University, Yongin 17104, Republic of Korea; (J.C.); (J.Y.H.)
| | - Il Gyu Cho
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Republic of Korea; (J.W.J.); (I.C.); (J.H.); (I.G.C.); (S.U.S.)
| | - Seung Uk Son
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Republic of Korea; (J.W.J.); (I.C.); (J.H.); (I.G.C.); (S.U.S.)
| | - Eun Joo Kang
- Department of Applied Chemistry, Kyung Hee University, Yongin 17104, Republic of Korea; (J.C.); (J.Y.H.)
| | - Changsik Song
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Republic of Korea; (J.W.J.); (I.C.); (J.H.); (I.G.C.); (S.U.S.)
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Zhang L, Gonçalves AAS, Jaroniec M. Synthesis of nanoporous carbonaceous materials at lower temperatures. Front Chem 2023; 11:1277826. [PMID: 37901162 PMCID: PMC10606552 DOI: 10.3389/fchem.2023.1277826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 10/02/2023] [Indexed: 10/31/2023] Open
Abstract
Nanoporous carbonaceous materials are ideal ingredients in various industrial products due to their large specific surface area. They are typically prepared by post-synthesis activation and templating methods. Both methods require the input of large amounts of energy to sustain thermal treatment at high temperatures (typically >600°C), which is clearly in violation of the green-chemistry principles. To avoid this issue, other strategies have been developed for the synthesis of carbonaceous materials at lower temperatures (<600°C). This mini review is focused on three strategies suitable for processing carbons at lower temperatures, namely, hydrothermal carbonization, in situ hard templating method, and mechanically induced self-sustaining reaction. Typical procedures of these strategies are demonstrated by using recently reported examples. At the end, some problems associated with the strategies and potential solutions are discussed.
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Affiliation(s)
- Liping Zhang
- Faculty of Materials Science, Shenzhen MSU-BIT University, Shenzhen, China
| | | | - Mietek Jaroniec
- Department of Chemistry and Biochemistry, Kent State University, Kent, OH, United States
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Som S, Hasija A, Chopra D. From liquid to crystal via mechanochemical grinding: unique host-guest (HOF) cocrystal. Acta Crystallogr C Struct Chem 2023; 79:399-408. [PMID: 37725080 DOI: 10.1107/s2053229623007519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 08/28/2023] [Indexed: 09/21/2023] Open
Abstract
Mechanochemical synthesis via grinding of trimesic acid (TA, C9H6O6) and 4-chlorophenyl diphenyl phosphate (4CDP, C18H14ClO4P) (liquid at room temperature) in a 1:1 ratio resulted in the formation of an inclusion type of cocrystal. The crystallization of this phase via slow evaporation at low temperature (276-277 K) from methanol resulted in a rare `stairstep morphology' during the process of crystal growth. This morphology was not observed after crystallization of the compound from other solvents like toluene, dichloromethane, acetone, hexane and isooctane, and hence this was characteristically observed in methanol only. The characterization from single-crystal X-ray diffraction revealed the formation of a cocrystal with five molecules of TA and two molecules of 4CDP in the asymmetric unit. The trimesic acid molecules form hydrogen-bonded dimers resulting in hexagonal rings, and these rings are stacked through π-π intermolecular interactions to make a hexagonal honeycomb-like structure. The phosphate molecules, 4CDP, were found to be trapped as guests in these hexagonal channels. The similarity in the packing of trimesic acid is compared in the cocrystal and the free acid quantitatively via Xpac analysis, which establishes the relationship of a `2D supramolecular construct' between them. This signifies a unique type of arrangement in which the voids created by the trimesic acid moiety do not undergo distortion by the inclusion of the guest molecules. The quantitative analysis of the intermolecular interactions using Hirshfeld surfaces and fingerprint plots deciphers the role of both strong O-H...O hydrogen bonds and weak intermolecular interactions in the crystal packing.
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Affiliation(s)
- Shubham Som
- Department of Chemistry, Indian Institute of Science Education and Research, Bhopal by-Pass Road, Bhopal, Madhya Pradesh 462066, India
| | - Avantika Hasija
- Department of Chemistry, Indian Institute of Science Education and Research, Bhopal by-Pass Road, Bhopal, Madhya Pradesh 462066, India
| | - Deepak Chopra
- Department of Chemistry, Indian Institute of Science Education and Research, Bhopal by-Pass Road, Bhopal, Madhya Pradesh 462066, India
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Lejda K, Ziąbka M, Olejniczak Z, Janik JF. Long-Term Oxidation Susceptibility in Ambient Air of the Semiconductor Kesterite Cu 2ZnSnS 4 Nanopowders Made by Mechanochemical Synthesis Method. Materials (Basel) 2023; 16:6160. [PMID: 37763438 PMCID: PMC10533042 DOI: 10.3390/ma16186160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 09/02/2023] [Accepted: 09/05/2023] [Indexed: 09/29/2023]
Abstract
The often overlooked and annoying aspects of the propensity of no-oxygen semiconductor kesterite, Cu2ZnSnS4, to oxidation during manipulation and storage in ambient air prompted the study on the prolonged exposure of kesterite nanopowders to air. Three precursor systems were used to make a large pool of the cubic and tetragonal polytypes of kesterite via a convenient mechanochemical synthesis route. The systems included the starting mixtures of (i) constituent elements (2Cu + Zn + Sn + 4S), (ii) selected metal sulfides and sulfur (Cu2S + ZnS + SnS + S), and (iii) in situ made copper alloys (from the high-energy ball milling of the metals 2Cu + Zn + Sn) and sulfur. All raw products were shown to be cubic kesterite nanopowders with defunct semiconductor properties. These nanopowders were converted to the tetragonal kesterite semiconductor by annealing at 500 °C under argon. All materials were exposed to the ambient air for 1, 3, and 6 months and were suitably analyzed after each of the stages. The characterization methods included powder XRD, FT-IR/UV-Vis/Raman/NMR spectroscopies, SEM, the determination of BET/BJH specific surface area and helium density (dHe), and direct oxygen and hydrogen-content analyses. The results confirmed the progressive, relatively fast, and pronounced oxidation of all kesterite nanopowders towards, mainly, hydrated copper(II) and zinc(II) sulfates, and tin(IV) oxide. The time-related oxidation changes were reflected in the lowering of the energy band gap Eg of the remaining tetragonal kesterite component.
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Affiliation(s)
- Katarzyna Lejda
- Faculty of Energy and Fuels, AGH University, al. Mickiewicza 30, 30-059 Krakow, Poland
| | - Magdalena Ziąbka
- Faculty of Materials Science and Ceramics, AGH University, al. Mickiewicza 30, 30-059 Krakow, Poland
| | - Zbigniew Olejniczak
- Institute of Nuclear Physics, Polish Academy of Sciences, ul. Radzikowskiego 152, 31-342 Krakow, Poland
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Bystrov VS, Paramonova EV, Avakyan LA, Eremina NV, Makarova SV, Bulina NV. Effect of Magnesium Substitution on Structural Features and Properties of Hydroxyapatite. Materials (Basel) 2023; 16:5945. [PMID: 37687640 PMCID: PMC10488744 DOI: 10.3390/ma16175945] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 08/08/2023] [Accepted: 08/28/2023] [Indexed: 09/10/2023]
Abstract
Hydroxyapatite (HAP) is the main mineral component of bones and teeth. It is widely used in medicine as a bone filler and coating for implants to promote new bone growth. Ion substitutions into the HAP structure highly affect its properties. One of the most important substituents is magnesium. This paper presents new results obtained using high-precision hybrid density functional theory calculations for Mg/Ca substitutions in HAP in a wide magnesium concentration range within a 2 × 2 × 2 supercell model. Experimental data on the mechanochemical synthesis of HAP-Mg samples with different Mg concentrations are also presented. A comparison between the experiment and the theory showed good agreement: the HAP-Mg unit cell parameters and volume decreased with increasing degree of Mg/Ca substitution. The changes in the distances between the Ca and O, Ca and H, and Mg and O ions upon Mg/Ca substitution in different calcium positions was analyzed. The resulting asymmetry and distortion of the cell parameters were evaluated. It was shown that bulk modulus, energy levels, and band gap depend on the degree of Mg substitutions in the Ca1 and Ca2 positions. The formation energies of Mg/Ca substitutions showed non-monotonic behavior that was different for Ca1 and Ca2 positions. The Ca2 position had a slightly higher probability (~5 meV/f.u.) of substitution than Ca1 position at a Mg concentration x = 0.5. At x = 1, substitution in both positions can coexist. The simulated IR spectra for different Mg/Ca substitutions showed that Mg in the Ca2 position changes the IR spectrum more significantly than Mg in the Ca1 position. Similar changes were recorded in the IR spectra of the synthesized samples. The electronic structure is shown to be sensitive to the number and position of substitutions, which may be used to tweak the optical properties of the HAP-Mg material.
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Affiliation(s)
- Vladimir S. Bystrov
- Institute of Mathematical Problems of Biology—Branch of Keldysh Institute of Applied Mathematics, Russian Academy of Sciences, 142290 Pushchino, Russia;
| | - Ekaterina V. Paramonova
- Institute of Mathematical Problems of Biology—Branch of Keldysh Institute of Applied Mathematics, Russian Academy of Sciences, 142290 Pushchino, Russia;
| | - Leon A. Avakyan
- Physics Faculty, Southern Federal University, 344090 Rostov-on-Don, Russia;
| | - Natalya V. Eremina
- Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch, Russian Academy of Sciences, 630128 Novosibirsk, Russia; (N.V.E.); (S.V.M.); (N.V.B.)
| | - Svetlana V. Makarova
- Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch, Russian Academy of Sciences, 630128 Novosibirsk, Russia; (N.V.E.); (S.V.M.); (N.V.B.)
| | - Natalia V. Bulina
- Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch, Russian Academy of Sciences, 630128 Novosibirsk, Russia; (N.V.E.); (S.V.M.); (N.V.B.)
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Abia C, López CA, Gainza J, Rodrigues JES, Fragoso B, Ferrer MM, Fernández-Díaz MT, Fauth F, Martínez JL, Alonso JA. Structural Features and Optical Properties of All-Inorganic Zero-Dimensional Halides Cs 4PbBr 6-xI x Obtained by Mechanochemistry. ACS Appl Mater Interfaces 2023; 15:40762-40771. [PMID: 37595125 PMCID: PMC10472433 DOI: 10.1021/acsami.3c07707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 08/07/2023] [Indexed: 08/20/2023]
Abstract
Despite the great success of hybrid CH3NH3PbI3 perovskite in photovoltaics, ascribed to its excellent optical absorption properties, its instability toward moisture is still an insurmountable drawback. All-inorganic perovskites are much less sensitive to humidity and have potential interest for solar cell applications. Alternative strategies have been developed to design novel materials with appealing properties, which include different topologies for the octahedral arrangements from three-dimensional (3D, e.g., CsPbBr3 perovskite) or two-dimensional (2D, e.g., CsPb2Br5) to zero-dimensional (0D, i.e., without connection between octahedra), as the case of Cs4PbX6 (X = Br, I) halides. The crystal structure of these materials is complex, and their thermal evolution is unexplored. In this work, we describe the synthesis of Cs4PbBr6-xIx (x = 0, 2, 4, 6) halides by mechanochemical procedures with green credentials; these specimens display excellent crystallinity enabling a detailed structural investigation from synchrotron X-ray powder diffraction (SXRD) data, essential to revisit some features in the temperature range of 90-298 K. In all this regime, the structure is defined in the trigonal R3̅c space group (#167). The presence of Cs and X vacancies suggests some ionic mobility into the crystal structure of these 0D halides. Bond valence maps (BVMs) are useful in determining isovalent surfaces for both Cs4PbBr6 and Cs4PbI6 phases, unveiling the likely ionic pathways for cesium and bromide ions and showing a full 3D connection in the bromide phase, in contrast to the iodide one. On the other hand, the evolution of the anisotropic displacement parameters is useful to evaluate the Debye temperatures, confirming that Cs atoms have more freedom to move, while Pb is more confined at its site, likely due to a higher covalency degree in Pb-X bonds than that in Cs-X bonds. Diffuse reflectance ultraviolet-visible (UV-vis) spectroscopy shows that the optical band gap can be tuned depending on iodine content (x) in the range of 3.6-3.06 eV. From density functional theory (DFT) simulations, the general trend of reducing the band gap when Br is replaced by I is well reproduced.
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Affiliation(s)
- Carmen Abia
- Instituto
de Ciencia de Materiales de Madrid, CSIC, Cantoblanco, 28049 Madrid, Spain
- Institut
Laue Langevin, BP 156X, Grenoble F-38042, France
| | - Carlos A. López
- Instituto
de Ciencia de Materiales de Madrid, CSIC, Cantoblanco, 28049 Madrid, Spain
- INTEQUI,
(UNSL-CONICET) and Facultad de Química, Bioquímica y
Farmacia, UNSL, Almirante
Brown 1455, 5700 San Luis, Argentina
| | - Javier Gainza
- Instituto
de Ciencia de Materiales de Madrid, CSIC, Cantoblanco, 28049 Madrid, Spain
| | - João Elias
F. S. Rodrigues
- CELLS−ALBA
Synchrotron, Cerdanyola
del Valles, Barcelona E-08290, Spain
- European
Synchrotron Radiation Facility (ESRF), 38000 Grenoble Cedex, France
| | - Brenda Fragoso
- CCAF, PPGCEM/CDTec, Federal University of Pelotas, 96010-610 Pelotas, Rio Grande do Sul, Brazil
| | - Mateus M. Ferrer
- CCAF, PPGCEM/CDTec, Federal University of Pelotas, 96010-610 Pelotas, Rio Grande do Sul, Brazil
| | | | - François Fauth
- CELLS−ALBA
Synchrotron, Cerdanyola
del Valles, Barcelona E-08290, Spain
| | - José Luis Martínez
- Instituto
de Ciencia de Materiales de Madrid, CSIC, Cantoblanco, 28049 Madrid, Spain
| | - José Antonio Alonso
- Instituto
de Ciencia de Materiales de Madrid, CSIC, Cantoblanco, 28049 Madrid, Spain
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10
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Ghosh J, O’Neill J, Masteghin MG, Braddock I, Crean C, Dorey R, Salway H, Anaya M, Reiss J, Wolfe D, Sellin P. Surfactant-Dependent Bulk Scale Mechanochemical Synthesis of CsPbBr 3 Nanocrystals for Plastic Scintillator-Based X-ray Imaging. ACS Appl Nano Mater 2023; 6:14980-14990. [PMID: 37649835 PMCID: PMC10463220 DOI: 10.1021/acsanm.3c02531] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 07/21/2023] [Indexed: 09/01/2023]
Abstract
We report a facile, solvent-free surfactant-dependent mechanochemical synthesis of highly luminescent CsPbBr3 nanocrystals (NCs) and study their scintillation properties. A small amount of surfactant oleylamine (OAM) plays an important role in the two-step ball milling method to control the size and emission properties of the NCs. The solid-state synthesized perovskite NCs exhibit a high photoluminescence quantum yield (PLQY) of up to 88% with excellent stability. CsPbBr3 NCs capped with different amounts of surfactant were dispersed in toluene and mixed with polymethyl methacrylate (PMMA) polymer and cast into scintillator discs. With increasing concentration of OAM during synthesis, the PL yield of CsPbBr3/PMMA nanocomposite was increased, which is attributed to reduced NC aggregation and PL quenching. We also varied the perovskite loading concentration in the nanocomposite and studied the resulting emission properties. The most intense PL emission was observed from the 2% perovskite-loaded disc, while the 10% loaded disc exhibited the highest radioluminescence (RL) emission from 50 kV X-rays. The strong RL yield may be attributed to the deep penetration of X-rays into the composite, combined with the large interaction cross-section of the X-rays with the high-Z atoms within the NCs. The nanocomposite disc shows an intense RL emission peak centered at 536 nm and a fast RL decay time of 29.4 ns. Further, we have demonstrated the X-ray imaging performance of a 10% CsPbBr3 NC-loaded nanocomposite disc.
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Affiliation(s)
- Joydip Ghosh
- Department
of Physics, University of Surrey, Guildford GU2 7XH, U.K.
| | - Joseph O’Neill
- Department
of Physics, University of Surrey, Guildford GU2 7XH, U.K.
| | - Mateus G. Masteghin
- Advanced
Technology Institute, University of Surrey, Guildford GU2 7XH, U.K.
| | - Isabel Braddock
- Department
of Physics, University of Surrey, Guildford GU2 7XH, U.K.
| | - Carol Crean
- Department
of Chemistry, University of Surrey, Guildford GU2 7XH, U.K.
| | - Robert Dorey
- School
of Mechanical Engineering Sciences, University
of Surrey, Guildford GU2 7XH, U.K.
| | - Hayden Salway
- Department
of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge CB3 0AS, U.K.
| | - Miguel Anaya
- Department
of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge CB3 0AS, U.K.
- Departamento
Física de la Materia Condensada, Instituto de Ciencia
de Materiales de Sevilla, Universidad de
Sevilla−CSIC, Avenida Reina Mercedes SN, Sevilla 41012, Spain
| | - Justin Reiss
- Applied
Research
Laboratory, Materials Science and Engineering Department, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Douglas Wolfe
- Applied
Research
Laboratory, Materials Science and Engineering Department, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Paul Sellin
- Department
of Physics, University of Surrey, Guildford GU2 7XH, U.K.
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11
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Dubadi R, Jaroniec M. One-Pot Mechanochemical Synthesis of Carbons with High Microporosity and Ordered Mesopores for CO 2 Uptake at Ambient Conditions. Nanomaterials (Basel) 2023; 13:2262. [PMID: 37570579 PMCID: PMC10421447 DOI: 10.3390/nano13152262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 07/31/2023] [Accepted: 08/03/2023] [Indexed: 08/13/2023]
Abstract
Mechanochemical synthesis of ordered mesoporous carbons with tunable mesopores and well-developed irregular microporosity is investigated. This synthesis was carried out by the self-assembly of ecofriendly chemicals such as tannin and glyoxal used as carbon precursors, and triblock copolymer as a soft templating agent. The structural properties of the resulting carbons were tailored by using different block copolymers (Pluronic F127, and P123) as soft templates. The various weight ratios of tannin and block copolymer were employed to tune the textural properties of these carbons. The tannin: Pluronic F127 ratios (1:0.75, 1:1, 1:1.1) gave the ordered mesoporous carbons among a wide variety of the samples studied. The ordered mesoporosity was not observed in the case of Pluronic P123 templated mesoporous carbons. The CO2-activated carbon samples obtained for both Pluronic templates showed a high specific surface area (close to 900 m2/g), large pore volume (about 0.6-0.7 cm3g-1), narrow pore size distribution, and high CO2 uptake of about 3.0 mmol g-1 at 1 bar pressure and ambient temperature.
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Affiliation(s)
| | - Mietek Jaroniec
- Department of Chemistry and Biochemistry, Kent State University, Kent, OH 44242, USA;
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12
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Kearns ER, Xia Q, Gillespie R, Proschogo N, Doheny PW, Solomon MB, D'Alessandro DM. 3D Printing of Monoliths Using TIFSIX-Ni-Based Formulations for the Electric Swing Adsorption of CO 2. ACS Appl Mater Interfaces 2023. [PMID: 37369987 DOI: 10.1021/acsami.3c05495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/29/2023]
Abstract
The hybrid ultraporous material TIFSIX-Ni ([Ni(pyrazine)2(TiF6)]n) was incorporated into a composite ink for the first time for the three-dimensional (3D) printing of monoliths. The large-scale synthesis of TIFSIX-Ni was completed using two different Ni(II) salts, with CO2 uptakes of 1.90 mmol g-1 achieved using mechanochemically assisted thermal synthesis. The monoliths were then tested for the capture and release of CO2 gas using electric swing adsorption (ESA) under dry and humid conditions. A working capacity of 1.7% was achieved (comparing dynamic data with isotherm data) when a current of 2.1 A was applied for 10 min. The monolith could be cycled repeatedly for 6 h without impacting the performance of the material or loss of capacity. Part of this work explored the improvement of mechanochemically assisted synthetic methods of TIFISX-Ni in reducing the costs associated with large-scale production, allowing for improvements in the overall scale-up and processability of the material for industrial applications.
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Affiliation(s)
- Eleanor R Kearns
- School of Chemical and Biomolecular Engineering, Faculty of Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia
- School of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Qingbo Xia
- School of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Rohan Gillespie
- Southern Green Gas Ltd., DFK Kidsons, Level 6, 30 Collins Street, Melbourne, Victoria 3000, Australia
| | - Nicholas Proschogo
- School of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Patrick W Doheny
- School of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Marcello B Solomon
- School of Chemical and Biomolecular Engineering, Faculty of Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia
- School of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Deanna M D'Alessandro
- School of Chemical and Biomolecular Engineering, Faculty of Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia
- School of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
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13
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Li J, Matheu R, Ke F, Liu Z, Lin Y, Karunadasa H. Mosaic CuI-CuII-InIII 2D Perovskites: Pressure-Dependence of the Intervalence Charge Transfer and a Mechanochemical Alloying Method. Angew Chem Int Ed Engl 2023; 62:e202300957. [PMID: 36919236 DOI: 10.1002/anie.202300957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 03/14/2023] [Accepted: 03/14/2023] [Indexed: 03/16/2023]
Abstract
The 2D perovskite (BA)4[CuII(CuIInIII)0.5]Cl8 (1BA; BA+ = butylammonium) allows us to study the high-pressure structural, optical, and transport properties of a mixed-valence 2D perovskite. Compressing 1BA reduces the onset energy of CuI/II intervalence charge transfer from 1.2 eV at ambient pressure to 0.2 eV at 21 GPa. The electronic conductivity of 1BA increases by 4 orders of magnitude upon compression to 20 GPa, when the activation energy for conduction decreases to 0.16 eV. In contrast, CuII perovskites achieve similar conductivity at ~50 GPa. The solution-state synthesis of these perovskites is complicated, with more undesirable side products likely from the precursor mixtures containing three different metals. To circumvent this problem, we demonstrate an efficient mechanochemical synthesis to expand this family of halide perovskites with complex composition by simply pulverizing together powders of 2D CuII single perovskites and CuIInIII double perovskites.
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Affiliation(s)
- Jiayi Li
- Stanford University Department of Chemistry, Chemistry, UNITED STATES
| | - Roc Matheu
- Stanford University Department of Chemistry, Chemistry, UNITED STATES
| | - Feng Ke
- SLAC: Stanford Linear Accelerator Center, SIMES, UNITED STATES
| | - Zhenxian Liu
- BNL: Brookhaven National Laboratory, NSLS-II, UNITED STATES
| | - Yu Lin
- SLAC: Stanford Linear Accelerator Center, SIMES, UNITED STATES
| | - Hemamala Karunadasa
- Stanford University, Department of Chemistry, 333 Campus Drive, Mudd Building, 94305-4401, Stanford, UNITED STATES
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14
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Dubadi R, Weidner E, Samojeden B, Jesionowski T, Ciesielczyk F, Huang S, Jaroniec M. Exploring the Multifunctionality of Mechanochemically Synthesized γ-Alumina with Incorporated Selected Metal Oxide Species. Molecules 2023; 28:molecules28052002. [PMID: 36903248 PMCID: PMC10004189 DOI: 10.3390/molecules28052002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 02/15/2023] [Accepted: 02/18/2023] [Indexed: 02/23/2023] Open
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 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.
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Affiliation(s)
- Rabindra Dubadi
- Department of Chemistry and Biochemistry, Kent State University, Kent, OH 44242, USA
| | - Ewelina Weidner
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, PL-60965 Poznan, Poland
| | - Bogdan Samojeden
- Department of Fuel Technology, Faculty of Energy and Fuels, AGH–University of Science and Technology, Al. A. Mickiewicza 30, PL-30059 Krakow, Poland
| | - Teofil Jesionowski
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, PL-60965 Poznan, Poland
| | - Filip Ciesielczyk
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, PL-60965 Poznan, Poland
| | - Songping Huang
- Department of Chemistry and Biochemistry, Kent State University, Kent, OH 44242, USA
| | - Mietek Jaroniec
- Department of Chemistry and Biochemistry, Kent State University, Kent, OH 44242, USA
- Correspondence:
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15
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Senderowski C, Vigilianska N, Burlachenko O, Grishchenko O, Murashov A, Stepanyuk S. Effect of APS Spraying Parameters on the Microstructure Formation of Fe 3Al Intermetallics Coatings Using Mechanochemically Synthesized Nanocrystalline Fe-Al Powders. Materials (Basel) 2023; 16:1669. [PMID: 36837298 PMCID: PMC9963353 DOI: 10.3390/ma16041669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 02/07/2023] [Accepted: 02/15/2023] [Indexed: 06/18/2023]
Abstract
The present paper presents a study of the behaviour of Fe3Al intermetallic powders particles based on 86Fe-14Al, 86Fe-14(Fe5Mg), and 60.8Fe-39.2(Ti37.5Al) compositions obtained by mechanochemical synthesis at successive stages of the plasma spraying process: during transfer in the volume of the gas stream and deformation at the moment of impact on the substrate. The effect of the change in current on the size of powder particles during their transfer through the high-temperature stream and the degree of particle deformation upon impact with the substrate was determined. It was found that during transfer through the plasma jet, there was an increase in the average size of sputtering products by two-three times compared to the initial effects of mechanochemical synthesis due to the coagulation of some particles. In this case, an increase in current from 400 to 500 A led to a growth in average particle size by 14-47% due to the partial evaporation of fine particles with an increase in their heating degree. An increase in current also led to a 5-10% growth in particle deformation degree upon impact on the substrate due to the rising temperature and velocity of the plasma jet. Based on the research, the parameters of plasma spraying of mechanically synthesized Fe3Al intermetallic-based powders were determined, at which dense coatings with a thin-lamellar structure were formed.
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Affiliation(s)
- Cezary Senderowski
- Institute of Mechanics and Printing, Faculty of Mechanical and Industrial Engineering, Warsaw University of Technology, 02-524 Warsaw, Poland
| | - Nataliia Vigilianska
- Department of Protective Coatings, E.O. Paton Electric Welding Institute, 03680 Kiev, Ukraine
| | - Oleksii Burlachenko
- Department of Protective Coatings, E.O. Paton Electric Welding Institute, 03680 Kiev, Ukraine
| | - Oleksandr Grishchenko
- Department of Protective Coatings, E.O. Paton Electric Welding Institute, 03680 Kiev, Ukraine
| | - Anatolii Murashov
- Department of Protective Coatings, E.O. Paton Electric Welding Institute, 03680 Kiev, Ukraine
| | - Sergiy Stepanyuk
- Department of Studies of Physical-Chemical Processes in Welding Arc, E.O. Paton Electric Welding Institute, 03680 Kiev, Ukraine
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16
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Dubadi R, Huang SD, Jaroniec M. Mechanochemical Synthesis of Nanoparticles for Potential Antimicrobial Applications. Materials (Basel) 2023; 16:ma16041460. [PMID: 36837091 PMCID: PMC9961116 DOI: 10.3390/ma16041460] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 02/02/2023] [Accepted: 02/06/2023] [Indexed: 05/13/2023]
Abstract
There is an increased interest in porous materials due to their unique properties such as high surface area, enhanced catalytic properties, and biological applications. Various solvent-based approaches have been already used to synthesize porous materials. However, the use of large volume of solvents, their toxicity, and time-consuming synthesis make this process less effective, at least in terms of principles of green chemistry. Mechanochemical synthesis is one of the effective eco-friendly alternatives to the conventional synthesis. It adopts the efficient mixing of reactants using ball milling without or with a very small volume of solvents, gives smaller size nanoparticles (NPs) and larger surface area, and facilitates their functionalization, which is highly beneficial for antimicrobial applications. A large variety of nanomaterials for different applications have already been synthesized by this method. This review emphasizes the comparison between the solvent-based and mechanochemical methods for the synthesis of mainly inorganic NPs for potential antimicrobial applications, although some metal-organic framework NPs are briefly presented too.
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17
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Lejda K, Janik JF, Perzanowski M, Stelmakh S, Pałosz B. Oxygen Aspects in the High-Pressure and High-Temperature Sintering of Semiconductor Kesterite Cu(2)ZnSnS(4) Nanopowders Prepared by a Mechanochemically-Assisted Synthesis Method. Int J Mol Sci 2023; 24. [PMID: 36834571 DOI: 10.3390/ijms24043159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 01/27/2023] [Accepted: 02/01/2023] [Indexed: 02/09/2023] Open
Abstract
We explore the important aspects of adventitious oxygen presence in nanopowders, as well as in the high-pressure and high-temperature-sintered nanoceramics of semiconductor kesterite Cu2ZnSnS4. The initial nanopowders were prepared via the mechanochemical synthesis route from two precursor systems, i.e., (i) a mixture of the constituent elements (Cu, Zn, Sn, and S), (ii) a mixture of the respective metal sulfides (Cu2S, ZnS, and SnS), and sulfur (S). They were made in each system in the form of both the raw powder of non-semiconducting cubic zincblende-type prekesterite and, after thermal treatment at 500 °C, of semiconductor tetragonal kesterite. Upon characterization, the nanopowders were subjected to high-pressure (7.7 GPa) and high-temperature (500 °C) sintering that afforded mechanically stable black pellets. Both the nanopowders and pellets were extensively characterized, employing such determinations as powder XRD, UV-Vis/FT-IR/Raman spectroscopies, solid-state 65Cu/119Sn NMR, TGA/DTA/MS, directly analyzed oxygen (O) and hydrogen (H) contents, BET specific surface area, helium density, and Vicker's hardness (when applicable). The major findings are the unexpectedly high oxygen contents in the starting nanopowders, which are further revealed in the sintered pellets as crystalline SnO2. Additionally, the pressure-temperature-time conditions of the HP-HT sintering of the nanopowders are shown (in the relevant cases) to result in the conversion of the tetragonal kesterite into cubic zincblende polytype upon decompression.
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18
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Remy-Speckmann I, Zimmermann BM, Gorai M, Lerch M, Teichert JF. Mechanochemical solid state synthesis of copper(I)/NHC complexes with K 3PO 4. Beilstein J Org Chem 2023; 19:440-447. [PMID: 37091734 PMCID: PMC10113518 DOI: 10.3762/bjoc.19.34] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Accepted: 04/06/2023] [Indexed: 04/25/2023] Open
Abstract
A protocol for the mechanochemical synthesis of copper(I)/N-heterocyclic carbene complexes using cheap and readily available K3PO4 as base has been developed. This method employing a ball mill is amenable to typical simple copper(I)/NHC complexes but also to a sophisticated copper(I)/N-heterocyclic carbene complex bearing a guanidine moiety. In this way, the present approach circumvents commonly employed silver(I) complexes which are associated with significant and undesired waste formation and the excessive use of solvents. The resulting bifunctional catalyst has been shown to be active in a variety of reduction/hydrogenation transformations employing dihydrogen as terminal reducing agent.
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Affiliation(s)
- Ina Remy-Speckmann
- Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 115, 10623 Berlin, Germany
| | - Birte M Zimmermann
- Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 115, 10623 Berlin, Germany
| | - Mahadeb Gorai
- Fakultät für Naturwissenschaften, Technische Universität Chemnitz, Straße der Nationen 62, 09111 Chemnitz, Germany
| | - Martin Lerch
- Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 115, 10623 Berlin, Germany
| | - Johannes F Teichert
- Fakultät für Naturwissenschaften, Technische Universität Chemnitz, Straße der Nationen 62, 09111 Chemnitz, Germany
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19
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Canale V, Trybała W, Chaumont-Dubel S, Koczurkiewicz-Adamczyk P, Satała G, Bento O, Blicharz-Futera K, Bantreil X, Pękala E, Bojarski AJ, Lamaty F, Marin P, Zajdel P. 1-(Arylsulfonyl-isoindol-2-yl)piperazines as 5-HT 6R Antagonists: Mechanochemical Synthesis, In Vitro Pharmacological Properties and Glioprotective Activity. Biomolecules 2022; 13:biom13010012. [PMID: 36671397 PMCID: PMC9855333 DOI: 10.3390/biom13010012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 12/15/2022] [Accepted: 12/17/2022] [Indexed: 12/24/2022] Open
Abstract
In addition to the canonical Gs adenylyl cyclase pathway, the serotonin type 6 receptor (5-HT6R) recruits additional signaling pathways that control cognitive function, brain development, and synaptic plasticity in an agonist-dependent and independent manner. Considering that aberrant constitutive and agonist-induced active states are involved in various pathological mechanisms, the development of biased ligands with different functional profiles at specific 5-HT6R-elicited signaling pathways may provide a novel therapeutic perspective in the field of neurodegenerative and psychiatric diseases. Based on the structure of SB-258585, an inverse agonist at 5-HT6R-operated Gs and Cdk5 signaling, we designed a series of 1-(arylsulfonyl-isoindol-2-yl)piperazine derivatives and synthesized them using a sustainable mechanochemical method. We identified the safe and metabolically stable biased ligand 3g, which behaves as a neutral antagonist at the 5-HT6R-operated Gs signaling and displays inverse agonist activity at the Cdk5 pathway. Inversion of the sulfonamide bond combined with its incorporation into the isoindoline scaffold switched the functional profile of 3g at Gs signaling with no impact at the Cdk5 pathway. Compound 3g reduced the cytotoxicity of 6-OHDA and produced a glioprotective effect against rotenone-induced toxicity in C8-D1A astrocyte cell cultures. In view of these findings, compound 3g can be considered a promising biased ligand to investigate the role of the 5-HT6R-elicited Gs and Cdk5 signaling pathways in neurodegenerative diseases.
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Affiliation(s)
- Vittorio Canale
- Department of Organic Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Krakow, Poland
- Correspondence:
| | - Wojciech Trybała
- Department of Organic Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Krakow, Poland
| | - Séverine Chaumont-Dubel
- Institut de Génomique Fonctionelle, Université de Montpellier, CNRS, INSERM, 34094 Montpellier, France
| | - Paulina Koczurkiewicz-Adamczyk
- Department of Pharmaceutical Biochemisty, Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Krakow, Poland
| | - Grzegorz Satała
- Department of Medicinal Chemistry, Maj Institute of Pharmacology, Polish Academy of Sciences, 12 Smętna Street, 31-343 Krakow, Poland
| | - Ophélie Bento
- Institut de Génomique Fonctionelle, Université de Montpellier, CNRS, INSERM, 34094 Montpellier, France
- IBMM, Université de Montpellier, CNRS, ENSCM, 34095 Montpellier, France
| | - Klaudia Blicharz-Futera
- Department of Organic Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Krakow, Poland
| | - Xavier Bantreil
- IBMM, Université de Montpellier, CNRS, ENSCM, 34095 Montpellier, France
- Institut Universitaire de France (IUF), 75005 Paris, France
| | - Elżbieta Pękala
- Department of Pharmaceutical Biochemisty, Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Krakow, Poland
| | - Andrzej J. Bojarski
- Department of Medicinal Chemistry, Maj Institute of Pharmacology, Polish Academy of Sciences, 12 Smętna Street, 31-343 Krakow, Poland
| | - Frédéric Lamaty
- IBMM, Université de Montpellier, CNRS, ENSCM, 34095 Montpellier, France
| | - Philippe Marin
- Institut de Génomique Fonctionelle, Université de Montpellier, CNRS, INSERM, 34094 Montpellier, France
| | - Paweł Zajdel
- Department of Organic Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Krakow, Poland
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20
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Bhattacherjee D, Kovalev IS, Kopchuk DS, Rahman M, Santra S, Zyryanov GV, Das P, Purohit R, Rusinov VL, Chupakhin ON. Mechanochemical Approach towards Multi-Functionalized 1,2,3-Triazoles and Anti-Seizure Drug Rufinamide Analogs Using Copper Beads. Molecules 2022; 27:molecules27227784. [PMID: 36431885 PMCID: PMC9693609 DOI: 10.3390/molecules27227784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 11/04/2022] [Accepted: 11/07/2022] [Indexed: 11/16/2022]
Abstract
Highly regiospecific, copper-salt-free and neat conditions have been demonstrated for the 1,3-dipolar azide-alkyne cycloaddition (AAC) reactions under mechanochemical conditions. A group of structurally challenging alkynes and heterocyclic derivatives was efficiently implemented to achieve highly functionalized 1,4-disubstituted-1,2,3-triazoles in good to excellent yield by using the Cu beads without generation of unwanted byproducts. Furthermore, the high-speed ball milling (HSBM) strategy has also been extended to the synthesis of the commercially available pharmaceutical agent, Rufinamide, an antiepileptic drug (AED) and its analogues. The same strategy was also applied for the synthesis of the Cl-derivative of Rufinamide. Analysis of the single crystal XRD data of the triazole was also performed for the final structural confirmation. The Cu beads are easily recoverable from the reaction mixture and used for the further reactions without any special treatment.
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Affiliation(s)
- Dhananjay Bhattacherjee
- Department of Organic and Biomolecular Chemistry, Ural Federal University, 19 Mira Street, 620002 Yekaterinburg, Russia
| | - Igor S. Kovalev
- Department of Organic and Biomolecular Chemistry, Ural Federal University, 19 Mira Street, 620002 Yekaterinburg, Russia
| | - Dmitry S. Kopchuk
- Department of Organic and Biomolecular Chemistry, Ural Federal University, 19 Mira Street, 620002 Yekaterinburg, Russia
- I. Ya. Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, 22 S. Kovalevskoi Street, 620219 Yekaterinburg, Russia
| | - Matiur Rahman
- Department of Organic and Biomolecular Chemistry, Ural Federal University, 19 Mira Street, 620002 Yekaterinburg, Russia
| | - Sougata Santra
- Department of Organic and Biomolecular Chemistry, Ural Federal University, 19 Mira Street, 620002 Yekaterinburg, Russia
- Correspondence:
| | - Grigory V. Zyryanov
- Department of Organic and Biomolecular Chemistry, Ural Federal University, 19 Mira Street, 620002 Yekaterinburg, Russia
- I. Ya. Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, 22 S. Kovalevskoi Street, 620219 Yekaterinburg, Russia
| | - Pralay Das
- Chemical Technology Division, CSIR-Institute of Himalayan Bioresource Technology (CSIR-IHBT), Palampur 176061, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Rituraj Purohit
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Structural Bioinformatics Lab, CSIR-Institute of Himalayan Bioresource Technology (CSIR-IHBT), Palampur 176061, India
| | - Vladimir L. Rusinov
- Department of Organic and Biomolecular Chemistry, Ural Federal University, 19 Mira Street, 620002 Yekaterinburg, Russia
- I. Ya. Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, 22 S. Kovalevskoi Street, 620219 Yekaterinburg, Russia
| | - Oleg N. Chupakhin
- Department of Organic and Biomolecular Chemistry, Ural Federal University, 19 Mira Street, 620002 Yekaterinburg, Russia
- I. Ya. Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, 22 S. Kovalevskoi Street, 620219 Yekaterinburg, Russia
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21
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Luo X, Zhong Y, Wang X, Xia X, Gu C, Tu J. Ionic Conductivity Enhancement of Li 2ZrCl 6 Halide Electrolytes via Mechanochemical Synthesis for All-Solid-State Lithium-Metal Batteries. ACS Appl Mater Interfaces 2022; 14:49839-49846. [PMID: 36282965 DOI: 10.1021/acsami.2c14903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Superionic halides have returned to the spotlight of solid electrolytes because of their satisfactory ionic conductivity, soft texture, and stability toward high-voltage electrode materials. Among them, Li2ZrCl6 has aroused interests since abundant Zr element can reduce the cost of large-scale synthesis. However, the related research is very limited, including the detailed parameters during synthesis and the possible strategies for enhancing ionic conductivity. In this work, we have systematically investigated the effects of synthesis parameters on the structure and ionic conductivity of Li2ZrCl6 during the ball-milling annealing process. It is found that mild heat treatment (100 °C) can largely enhance the ionic conductivity of ball-milled electrolytes by 2-3 times, which has not been previously reported. Such enhancement is mainly attributed to the network-like micromorphology composed of nanorods, nanowires, or nanoballs, which is beneficial for lithium ion migration. Finally, the modified Li2ZrCl6 (4.46 × 10-4 S cm-1 @ RT) is also proved to be applicable in LiNi0.8Mn0.1Co0.1O2/ Li2ZrCl6/ Li6PS5Cl/Li-In all-solid-state lithium metal batteries (ASSLMBs). It presents high initial charge capacity of 176.4 mAh g-1 and satisfactory cycle stability since a discharge capacity of 90.8 mAh g-1 is maintained after 40 cycles at 0.1 C. The Li2ZrCl6 electrolytes synthesized via the mechanochemical method is promising to be applied in the high-voltage ASSLMBs, and its ionic conductivity can be enhanced by the strategies provided in our work.
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Affiliation(s)
- Xuming Luo
- State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, and School of Materials Science and Engineering, Zhejiang University, Hangzhou310027, China
| | - Yu Zhong
- State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, and School of Materials Science and Engineering, Zhejiang University, Hangzhou310027, China
| | - Xiuli Wang
- State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, and School of Materials Science and Engineering, Zhejiang University, Hangzhou310027, China
| | - Xinhui Xia
- State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, and School of Materials Science and Engineering, Zhejiang University, Hangzhou310027, China
| | - Changdong Gu
- State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, and School of Materials Science and Engineering, Zhejiang University, Hangzhou310027, China
| | - Jiangping Tu
- State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, and School of Materials Science and Engineering, Zhejiang University, Hangzhou310027, China
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22
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Dutkova E, Baláž M, Daneu N, Tatykayev B, Karakirova Y, Velinov N, Kostova N, Briančin J, Baláž P. Properties of CuFeS 2/TiO 2 Nanocomposite Prepared by Mechanochemical Synthesis. Materials (Basel) 2022; 15:6913. [PMID: 36234253 PMCID: PMC9572411 DOI: 10.3390/ma15196913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 09/30/2022] [Accepted: 09/30/2022] [Indexed: 06/16/2023]
Abstract
CuFeS2/TiO2 nanocomposite has been prepared by a simple, low-cost mechanochemical route to assess its visible-light-driven photocatalytic efficiency in Methyl Orange azo dye decolorization. The structural and microstructural characterization was studied using X-ray diffraction and high-resolution transmission electron microscopy. The presence of both components in the composite and a partial anatase-to-rutile phase transformation was proven by X-ray diffraction. Both components exhibit crystallite size below 10 nm. The crystallite size of both phases in the range of 10-20 nm was found and confirmed by TEM. Surface and morphological properties were characterized by scanning electron microscopy and nitrogen adsorption measurement. Scanning electron microscopy has shown that the nanoparticles are agglomerated into larger grains. The specific surface area of the nanocomposite was determined to be 21.2 m2·g-1. Optical properties using UV-Vis and photoluminescence spectroscopy were also investigated. CuFeS2/TiO2 nanocomposite exhibits strong absorption with the determined optical band gap 2.75 eV. Electron paramagnetic resonance analysis has found two types of paramagnetic ions in the nanocomposite. Mössbauer spectra showed the existence of antiferromagnetic and paramagnetic spin structure in the nanocomposite. The CuFeS2/TiO2 nanocomposite showed the highest discoloration activity with a MO conversion of ~ 74% after 120 min irradiation. This study has shown the possibility to prepare nanocomposite material with enhanced photocatalytic activity of decoloration of MO in the visible range by an environmentally friendly manner.
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Affiliation(s)
- Erika Dutkova
- Department of Mechanochemistry, Institute of Geotechnics, Slovak Academy of Sciences, Watsonova 45, 04001 Košice, Slovakia
| | - Matej Baláž
- Department of Mechanochemistry, Institute of Geotechnics, Slovak Academy of Sciences, Watsonova 45, 04001 Košice, Slovakia
| | - Nina Daneu
- Advanced Materials Department, Jožef Stefan Institute, 1000 Ljubljana, Slovenia
| | - Batukhan Tatykayev
- Department of General and Inorganic Chemistry, Al-Farabi Kazakh National University, Almaty 050040, Kazakhstan
| | | | - Nikolay Velinov
- Institute of Catalysis, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
| | - Nina Kostova
- Institute of Catalysis, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
| | - Jaroslav Briančin
- Department of Mechanochemistry, Institute of Geotechnics, Slovak Academy of Sciences, Watsonova 45, 04001 Košice, Slovakia
| | - Peter Baláž
- Department of Mechanochemistry, Institute of Geotechnics, Slovak Academy of Sciences, Watsonova 45, 04001 Košice, Slovakia
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Otsuka M, Saito H, Sasaki T. Analytical Evaluation of Wet and Dry Mechanochemical Syntheses of Calcium-Deficient Hydroxyapatite Containing Zinc Using X-ray Diffractometry and Near-Infrared Spectroscopy. Pharmaceutics 2022; 14:2105. [PMID: 36297540 DOI: 10.3390/pharmaceutics14102105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 09/11/2022] [Accepted: 09/26/2022] [Indexed: 11/09/2022] Open
Abstract
Calcium-deficient zinc-containing calcium phosphate (ZnAP), which has sustained zinc release properties that are effective for treating osteoporosis, can be efficiently synthesized as a biomaterial through wet grinding. To elucidate the physicochemical mechanism of these mechanochemical syntheses, ground products were obtained from the starting material powder (S-CP), consisting of calcium hydrogen phosphate dihydrate (CHPD), calcium oxide (CaO), and zinc oxide (ZnO), by wet and dry grinding for 0–3 h in a centrifugal ball mill. The ground S-CP products were analyzed using powder X-ray diffraction (XRD) and near-infrared spectroscopy (NIRS); the crystal transformations and molecular interactions of the ground products were kinetically analyzed. The XRD and second-derivative NIRS results indicate that the S-CP is primarily transformed into ZnAP via amorphous solid formation in wet grinding, and the reaction follows a consecutive reaction model. In contrast, in dry grinding, the ground product of CHPD and CaO is transformed into an amorphous solid following an equilibrium reaction model; however, ZnO is predominantly not transformed and remains crystalline.
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24
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Achimovičová M, Hegedüs M, Girman V, Lisnichuk M, Dutková E, Kurimský J, Briančin J. Mechanochemical Synthesis of Nickel Mono- and Diselenide: Characterization and Electrical and Optical Properties. Nanomaterials (Basel) 2022; 12:2952. [PMID: 36079987 PMCID: PMC9457779 DOI: 10.3390/nano12172952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 08/22/2022] [Accepted: 08/23/2022] [Indexed: 06/15/2023]
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. 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.
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Affiliation(s)
| | | | - Vladimír Girman
- Faculty of Science, Pavol Jozef Šafárik University, 04154 Košice, Slovakia
- Institute of Materials Research, Slovak Academy of Sciences, 04001 Košice, Slovakia
| | - Maksym Lisnichuk
- Faculty of Science, Pavol Jozef Šafárik University, 04154 Košice, Slovakia
- Institute of Materials Research, Slovak Academy of Sciences, 04001 Košice, Slovakia
| | - Erika Dutková
- Institute of Geotechnics, Slovak Academy of Sciences, 04001 Košice, Slovakia
| | - Juraj Kurimský
- Faculty of Electrical Engineering and Informatics, Technical University, 04200 Košice, Slovakia
| | - Jaroslav Briančin
- Institute of Geotechnics, Slovak Academy of Sciences, 04001 Košice, Slovakia
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25
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Bulina NV, Eremina NV, Vinokurova OB, Ishchenko AV, Chaikina MV. Diffusion of Copper Ions in the Lattice of Substituted Hydroxyapatite during Heat Treatment. Materials (Basel) 2022; 15:5759. [PMID: 36013896 PMCID: PMC9415723 DOI: 10.3390/ma15165759] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/10/2022] [Accepted: 08/11/2022] [Indexed: 06/15/2023]
Abstract
The doping of hydroxyapatite with various substituent ions can give this material new and useful properties. Nonetheless, local distortions of structure after doping can change the properties of the material. In this work, the thermal stability of copper-substituted hydroxyapatite synthesized by the mechanochemical method was investigated. In situ diffraction analyses showed that copper ion diffusion during the heating of Cu-substituted hydroxyapatite promotes phase transformations in the substituted hydroxyapatite. The behavior of copper ions was studied in samples with ratios (Ca + Cu)/P = 1.75 and 1.67. It was found that in both cases, single-phase Cu-substituted hydroxyapatite with the general formula Ca10-xCux(PO4)6-y(CO3)y(OH)2-yOy is formed by the mechanochemical synthesis. When heated at approximately 600-700 °C, the lattice loses copper cations, but at higher temperatures, CuO diffusion into the hydroxyl channel takes place. Cuprate-substituted hydroxyapatite with the general formula Ca10(PO4)6(OH)2-2x(CuO2)x forms in this context. At 1200 °C, the sample is single-phase at (Ca + Cu)/P = 1.75. Nonetheless, slow cooling of the material leads to the emergence of a CuO phase, as in the case of (Ca + Cu)/P = 1.67, where the material contains not only CuO but also Cu-substituted tricalcium phosphate. In the manufacture of ceramic products from Cu-substituted hydroxyapatite, these structural transformations must be taken into account, as they alter not only thermal but also biological properties of such materials.
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Affiliation(s)
- Natalia V. Bulina
- Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch of the Russian Academy of Sciences, Kutateladze Str. 18, 630128 Novosibirsk, Russia
| | - Natalya V. Eremina
- Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch of the Russian Academy of Sciences, Kutateladze Str. 18, 630128 Novosibirsk, Russia
| | - Olga B. Vinokurova
- Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch of the Russian Academy of Sciences, Kutateladze Str. 18, 630128 Novosibirsk, Russia
| | - Arcady V. Ishchenko
- G.K. Boreskov Institute of Catalysis, Siberian Branch of Russian Academy of Sciences, Pr. Akad. Lavrentieva 5, 630090 Novosibirsk, Russia
| | - Marina V. Chaikina
- Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch of the Russian Academy of Sciences, Kutateladze Str. 18, 630128 Novosibirsk, Russia
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26
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Liu C, Xue X, Yuan Q, Lin Y, Bao Y, He Y, Zhang W. Preparation and Tribological Properties of Bismaleimide Matrix Composites Reinforced with Covalent Organic Framework Coated Graphene Nanosheets. Polymers (Basel) 2022; 14:polym14163289. [PMID: 36015546 PMCID: PMC9416587 DOI: 10.3390/polym14163289] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/06/2022] [Accepted: 08/07/2022] [Indexed: 11/16/2022] Open
Abstract
The poor compatibility between the polymer matrix and complex modification processes greatly affects the excellent tribological properties of graphene in the polymer matrix. In this study, a covalent organic framework (COF)-coated graphene hybrid lubricating filler (G/COFs) was synthesized in situ using a sample one-step mechanochemical synthesis process. This was used to improve the tribological properties of bismaleimide (BMI) resin. The morphology and microstructure of the G/COFs hybrid were characterized, and the effect of the added amount on the tribological properties of the G/COFs/BMI composites was studied. The results showed that the G/COFs hybrid could improve the stability of the friction coefficient and decrease the volume wear rate of BMI composites. Compared to the neat BMI, the 0.6 wt% G/COFs/BMI composites showed optimal tribological performance, with the friction coefficient and volume wear rate decreasing from 0.35 to 0.14 and from 48 × 10-6 to 10.6 × 10-6 mm3/(N‧m), respectively. In addition, the G/COFs/BMI composites showed lower friction coefficient fluctuations and volume wear rates than G/BMI composites. This is mainly attributed to the fact that the deposition of COFs can not only effectively prevent the aggregation of graphene nanosheets, but can also significantly improve the compatibility and interfacial bond between the graphene and BMI matrix. Moreover, the good synergistic effect between the lamellar COFs and graphene nanosheets can generate high-quality self-lubricating transfer films during the friction process. The excellent dispersibility, efficient chemical functionalization, better friction reduction and wear-resistance properties, and facile preparation method make graphene/COFs hybrid nanoparticles promising as an excellent lubricating filler.
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Affiliation(s)
- Chao Liu
- Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry, Ministry of Education, Shaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry and Technology, Shaanxi University of Science and Technology, Xi’an 710021, China
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China
- Correspondence:
| | - Xin Xue
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Qiming Yuan
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Yang Lin
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Yan Bao
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Yinkun He
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Wenbo Zhang
- Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry, Ministry of Education, Shaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry and Technology, Shaanxi University of Science and Technology, Xi’an 710021, China
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Yadav P, Khurana S, Sapra S. Doping Mn 2+in hybrid Ruddlesden-Popper phase of layered double perovskite (BA) 4AgBiBr 8. Nanotechnology 2022; 33:415706. [PMID: 35793603 DOI: 10.1088/1361-6528/ac7ed0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 07/04/2022] [Indexed: 06/15/2023]
Abstract
The layered hybrid double perovskites emerged as excellent semiconductor materials owing to their environment compatibility and stability. However, these materials are weakly luminescent, and their photoluminescence (PL) properties can be modulated via doping. While Mn2+doping in perovskites is well known, but to the best of our knowledge the doping of Mn2+in layered double perovskites (LDPs) is yet to be explored. Herein, for the first time, we demonstrate the doping of Mn2+in hybrid inorganic-organic two-dimensional (2D) LDPs, (BA)4AgBiBr8(BA = n-butyl amine) via a simple solid-state mechanochemical route. The powder x-ray diffraction pattern, and electron paramagnetic resonance analysis confirm the successful incorporation of Mn2+ions inside (BA)4AgBiBr8lattice. The Mn2+doped 2D LDP shows energy transfer from host excitons to d-electrons of Mn2+ions, which results in red-shifted broad Mn2+emission band centered at 625 nm, attributed to thespin-forbidden4T1to6A1internal transition. This work opens up new possibilities to dope metal ions in 2D LDPs to tune the optical as well as magnetic properties.
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Affiliation(s)
- Priyesh Yadav
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Swati Khurana
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Sameer Sapra
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
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28
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Esperto L, Figueira I, Mascarenhas J, Silva TP, Correia JB, Neves F. Structural and Optical Characterization of Mechanochemically Synthesized CuSbS 2 Compounds. Materials (Basel) 2022; 15:ma15113842. [PMID: 35683139 PMCID: PMC9181617 DOI: 10.3390/ma15113842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 05/24/2022] [Accepted: 05/26/2022] [Indexed: 11/16/2022]
Abstract
One of the areas of research on materials for thin-film solar cells focuses on replacing In and Ga with more earth-abundant elements. In that respect, chalcostibite (CuSbS2) is being considered as a promising environmentally friendly and cost-effective photovoltaic absorber material. In the present work, single CuSbS2 phase was synthesized directly by a short-duration (2 h) mechanochemical-synthesis step starting from mixtures of elemental powders. X-ray diffraction analysis of the synthesized CuSbS2 powders revealed a good agreement with the orthorhombic chalcostibite phase, space group Pnma, and a crystallite size of 26 nm. Particle-size characterization revealed a multimodal distribution with a median diameter ranging from of 2.93 μm to 3.10 μm. The thermal stability of the synthesized CuSbS2 powders was evaluated by thermogravimetry and differential thermal analysis. No phase change was observed by heat-treating the mechanochemically synthesized powders at 350 °C for 24 h. By UV-VIS-NIR spectroscopy the optical band gap was determined to be 1.41 eV, suggesting that the mechanochemically synthesized CuSbS2 can be considered suitable to be used as absorber materials. Overall, the results show that the mechanochemical process is a viable route for the synthesis of materials for photovoltaic applications.
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Affiliation(s)
- Luís Esperto
- LNEG, Laboratório Nacional de Energia e Geologia, Estrada do Paço do Lumiar 22, 1649-038 Lisboa, Portugal; (L.E.); (I.F.); (J.M.); (J.B.C.)
| | - Isabel Figueira
- LNEG, Laboratório Nacional de Energia e Geologia, Estrada do Paço do Lumiar 22, 1649-038 Lisboa, Portugal; (L.E.); (I.F.); (J.M.); (J.B.C.)
| | - João Mascarenhas
- LNEG, Laboratório Nacional de Energia e Geologia, Estrada do Paço do Lumiar 22, 1649-038 Lisboa, Portugal; (L.E.); (I.F.); (J.M.); (J.B.C.)
| | - Teresa P. Silva
- LNEG, Laboratório Nacional de Energia e Geologia, Estrada da Portela, Bairro do Zambujal—Alfragide, Apartado 7586, 2610-999 Amadora, Portugal;
| | - José B. Correia
- LNEG, Laboratório Nacional de Energia e Geologia, Estrada do Paço do Lumiar 22, 1649-038 Lisboa, Portugal; (L.E.); (I.F.); (J.M.); (J.B.C.)
| | - Filipe Neves
- LNEG, Laboratório Nacional de Energia e Geologia, Estrada do Paço do Lumiar 22, 1649-038 Lisboa, Portugal; (L.E.); (I.F.); (J.M.); (J.B.C.)
- Correspondence:
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29
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Acebedo-Martínez FJ, Alarcón-Payer C, Frontera A, Barbas R, Prohens R, Di Crisci M, Domínguez-Martín A, Gómez-Morales J, Choquesillo-Lazarte D. Novel Polymorphic Cocrystals of the Non-Steroidal Anti-Inflammatory Drug Niflumic Acid: Expanding the Pharmaceutical Landscape. Pharmaceutics 2021; 13:pharmaceutics13122140. [PMID: 34959421 PMCID: PMC8706418 DOI: 10.3390/pharmaceutics13122140] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 12/08/2021] [Accepted: 12/10/2021] [Indexed: 11/16/2022] Open
Abstract
Any time the pharmaceutical industry develops a new drug, potential polymorphic events must be thoroughly described, because in a crystalline pharmaceutical solid, different arrangements of the same active pharmaceutical ingredient can yield to very different physicochemical properties that might be crucial for its efficacy, such as dissolution, solubility, or stability. Polymorphism in cocrystal formulation cannot be neglected, either. In this work, two different cocrystal polymorphs of the non-steroidal anti-inflammatory drug niflumic acid and caffeine are reported. They have been synthesized by mechanochemical methods and thoroughly characterized in solid-state by powder and single crystal X-ray diffraction respectively, as well as other techniques such as thermal analyses, infrared spectroscopy and computational methods. Both theoretical and experimental results are in agreement, confirming a conformational polymorphism. The polymorph NIF-CAF Form I exhibits improved solubility and dissolution rate compared to NIF-CAF Form II, although Form II is significantly more stable than Form I. The conditions needed to obtain these polymorphs and their transition have been carefully characterized, revealing an intricate system.
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Affiliation(s)
- Francisco Javier Acebedo-Martínez
- Laboratorio de Estudios Cristalográficos, IACT, CSIC-Universidad de Granada, Avda. de las Palmeras 4, 18100 Armilla, Spain; (F.J.A.-M.); (M.D.C.); (J.G.-M.)
| | - Carolina Alarcón-Payer
- Servicio de Farmacia, Hospital Universitario Virgen de las Nieves, 18014 Granada, Spain;
| | - Antonio Frontera
- Department of Chemistry, Universitat de les Illes Balears, Crta de Valldemossa km 7.5, 07122 Palma de Mallorca, Spain;
| | - Rafael Barbas
- Unitat de Polimorfisme i Calorimetria, Centres Científics i Tecnològics, Universitat de Barcelona, Baldiri Reixac 10, 08028 Barcelona, Spain;
| | - Rafel Prohens
- Unitat de Polimorfisme i Calorimetria, Centres Científics i Tecnològics, Universitat de Barcelona, Baldiri Reixac 10, 08028 Barcelona, Spain;
- Correspondence: (R.P.); (A.D.-M.); (D.C.-L.)
| | - Milena Di Crisci
- Laboratorio de Estudios Cristalográficos, IACT, CSIC-Universidad de Granada, Avda. de las Palmeras 4, 18100 Armilla, Spain; (F.J.A.-M.); (M.D.C.); (J.G.-M.)
- Department of Inorganic Chemistry, Faculty of Pharmacy, University of Granada, 18071 Granada, Spain
| | - Alicia Domínguez-Martín
- Department of Inorganic Chemistry, Faculty of Pharmacy, University of Granada, 18071 Granada, Spain
- Correspondence: (R.P.); (A.D.-M.); (D.C.-L.)
| | - Jaime Gómez-Morales
- Laboratorio de Estudios Cristalográficos, IACT, CSIC-Universidad de Granada, Avda. de las Palmeras 4, 18100 Armilla, Spain; (F.J.A.-M.); (M.D.C.); (J.G.-M.)
| | - Duane Choquesillo-Lazarte
- Laboratorio de Estudios Cristalográficos, IACT, CSIC-Universidad de Granada, Avda. de las Palmeras 4, 18100 Armilla, Spain; (F.J.A.-M.); (M.D.C.); (J.G.-M.)
- Correspondence: (R.P.); (A.D.-M.); (D.C.-L.)
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Shin J, Baek KY, Lee J, Lee W, Kim J, Jang J, Park J, Kang K, Cho K, Lee T. Proton irradiation effects on mechanochemically synthesized and flash-evaporated hybrid organic-inorganic lead halide perovskites. Nanotechnology 2021; 33:065706. [PMID: 34715679 DOI: 10.1088/1361-6528/ac34a7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 10/29/2021] [Indexed: 06/13/2023]
Abstract
A hybrid organic-inorganic halide perovskite is a promising material for developing efficient solar cell devices, with potential applications in space science. In this study, we synthesized methylammonium lead iodide (MAPbI3) perovskites via two methods: mechanochemical synthesis and flash evaporation. We irradiated these perovskites with highly energetic 10 MeV proton-beam doses of 1011, 1012, 1013, and 4 × 1013protons cm-2and examined the proton irradiation effects on the physical properties of MAPbI3perovskites. The physical properties of the mechanochemically synthesized MAPbI3perovskites were not considerably affected after proton irradiation. However, the flash-evaporated MAPbI3perovskites showed a new peak in x-ray diffraction and an increased fluorescence lifetime in time-resolved photoluminescence under high-dose conditions, indicating considerable changes in their physical properties. This difference in behavior between MAPbI3perovskites synthesized via the abovementioned two methods may be attributed to differences in radiation hardness associated with the bonding strength of the constituents, particularly Pb-I bonds. Our study will help to understand the radiation effect of proton beams on organometallic halide perovskite materials.
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Affiliation(s)
- Jiwon Shin
- Department of Physics and Astronomy, and Institute of Applied Physics, Seoul National University, Seoul 08826, Republic of Korea
| | - Kyeong-Yoon Baek
- Department of Physics and Astronomy, and Institute of Applied Physics, Seoul National University, Seoul 08826, Republic of Korea
| | - Jonghoon Lee
- Department of Physics and Astronomy, and Institute of Applied Physics, Seoul National University, Seoul 08826, Republic of Korea
| | - Woocheol Lee
- Department of Physics and Astronomy, and Institute of Applied Physics, Seoul National University, Seoul 08826, Republic of Korea
| | - Jaeyoung Kim
- Department of Physics and Astronomy, and Institute of Applied Physics, Seoul National University, Seoul 08826, Republic of Korea
| | - Juntae Jang
- Department of Physics and Astronomy, and Institute of Applied Physics, Seoul National University, Seoul 08826, Republic of Korea
| | - Jaehyoung Park
- Department of Physics and Astronomy, and Institute of Applied Physics, Seoul National University, Seoul 08826, Republic of Korea
| | - Keehoon Kang
- Department of Materials Science & Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Kyungjune Cho
- Soft Hybrid Materials Research Center, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Takhee Lee
- Department of Physics and Astronomy, and Institute of Applied Physics, Seoul National University, Seoul 08826, Republic of Korea
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Akopova TA, Demina TS, Khavpachev MA, Popyrina TN, Grachev AV, Ivanov PL, Zelenetskii AN. Hydrophobic Modification of Chitosan via Reactive Solvent-Free Extrusion. Polymers (Basel) 2021; 13:2807. [PMID: 34451348 PMCID: PMC8399264 DOI: 10.3390/polym13162807] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 08/17/2021] [Accepted: 08/18/2021] [Indexed: 01/31/2023] Open
Abstract
Hydrophobic derivatives of polysaccharides possess an amphiphilic behavior and are widely used as rheological modifiers, selective sorbents, and stabilizers for compositions intended for various applications. In this work, we studied the mechanochemical reactions of chitosan alkylation when interacting with docosylglycidyl and hexadecylglycidyl ethers in the absence of solvents at shear deformation in a pilot twin-screw extruder. The chemical structure and physical properties of the obtained derivatives were characterized by elemental analysis, FT-IR spectroscopy, dynamic light scattering, scanning electron microscopy, and mechanical tests. According to calculations for products soluble in aqueous media, it was possible to introduce about 5-12 hydrophobic fragments per chitosan macromolecule with a degree of polymerization of 500-2000. The length of the carbon chain of the alkyl substituent significantly affects its reactivity under the chosen conditions of mechanochemical synthesis. It was shown that modification disturbs the packing ability of the macromolecules, resulting in an increase of plasticity and drop in the elastic modulus of the film made from the hydrophobically modified chitosan samples.
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Affiliation(s)
- Tatiana A. Akopova
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 70 Profsoyuznaya St., 117393 Moscow, Russia; (T.S.D.); (M.A.K.); (T.N.P.); (P.L.I.); (A.N.Z.)
| | - Tatiana S. Demina
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 70 Profsoyuznaya St., 117393 Moscow, Russia; (T.S.D.); (M.A.K.); (T.N.P.); (P.L.I.); (A.N.Z.)
| | - Mukhamed A. Khavpachev
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 70 Profsoyuznaya St., 117393 Moscow, Russia; (T.S.D.); (M.A.K.); (T.N.P.); (P.L.I.); (A.N.Z.)
| | - Tatiana N. Popyrina
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 70 Profsoyuznaya St., 117393 Moscow, Russia; (T.S.D.); (M.A.K.); (T.N.P.); (P.L.I.); (A.N.Z.)
| | - Andrey V. Grachev
- Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, 4 Kosygina St., 119991 Moscow, Russia;
| | - Pavel L. Ivanov
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 70 Profsoyuznaya St., 117393 Moscow, Russia; (T.S.D.); (M.A.K.); (T.N.P.); (P.L.I.); (A.N.Z.)
| | - Alexander N. Zelenetskii
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 70 Profsoyuznaya St., 117393 Moscow, Russia; (T.S.D.); (M.A.K.); (T.N.P.); (P.L.I.); (A.N.Z.)
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Martínez Sánchez H, Hadjipanayis G, Pérez Alcázar GA, Zamora Alfonso LE, Trujillo Hernández JS. Mechanochemical Synthesis and Nitrogenation of the Nd 1.1Fe 10CoTi Alloy for Permanent Magnet. Molecules 2021; 26:3854. [PMID: 34202831 DOI: 10.3390/molecules26133854] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 06/13/2021] [Accepted: 06/18/2021] [Indexed: 12/04/2022] Open
Abstract
In this work, the mechanochemical synthesis method was used for the first time to produce powders of the nanocrystalline Nd1.1Fe10CoTi compound from Nd2O3, Fe2O3, Co and TiO2. High-energy-milled powders were heat treated at 1000 °C for 10 min to obtain the ThMn12-type structure. Volume fraction of the 1:12 phase was found to be as high as 95.7% with 4.3% of a bcc phase also present. The nitrogenation process of the sample was carried out at 350 °C during 3, 6, 9 and 12 h using a static pressure of 80 kPa of N2. The magnetic properties Mr, µ0Hc, and (BH)max were enhanced after nitrogenation, despite finding some residual nitrogen-free 1:12 phase. The magnetic values of a nitrogenated sample after 3 h were Mr = 75 Am2 kg–1, µ0Hc = 0.500 T and (BH)max = 58 kJ·m–3. Samples were aligned under an applied field of 2 T after washing and were measured in a direction parallel to the applied field. The best value of (BH)max ~ 114 kJ·m–3 was obtained for 3 h and the highest µ0Hc = 0.518 T for 6 h nitrogenation. SEM characterization revealed that the particles have a mean particle size around 360 nm and a rounded shape.
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Fan X, Du P, Ma X, Wang R, Ma J, Wang Y, Fan D, Long Y, Deng B, Huang K, Wu H. Mechanochemical Synthesis of Pt/Nb 2CT x MXene Composites for Enhanced Electrocatalytic Hydrogen Evolution. Materials (Basel) 2021; 14:2426. [PMID: 34066611 PMCID: PMC8124981 DOI: 10.3390/ma14092426] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/28/2021] [Accepted: 04/28/2021] [Indexed: 11/28/2022]
Abstract
Production of hydrogen from water splitting has been considered as a promising solution for energy conversion and storage. Since a noble metal-based structure is still the most satisfactory but scarce kind of catalyst, it is significant to allow for practical application of such catalysts by engineering the heterogeneous structure and developing green and facile synthetic strategies. Herein, we report a mechanochemical ball milling synthesis of platinum nanoclusters immobilized on a 2D transition metal carbide MXene (Nb2CTx) as an enhanced catalyst for hydrogen evolution. After annealing at 600 °C, ultrafine Pt3Nb nanoclusters are formed on the Pt/Nb2CTx catalyst. As prepared, the Pt/Nb2CTx-600 catalyst demonstrates superior electrochemical HER activity and stability with an ultralow overpotential of 5 mV and 46 mV to achieve 10 mA cm-2 and 100 mA cm-2, respectively, in comparison with other Nb2CTx-based catalysts and commercial Pt/C catalysts. Moreover, the remarkable durability is also confirmed by accelerated durability tests (ADTs) and long-term chronoamperometry (CA) tests. The excellent HER performance was attributed to high Pt dispersion and more active site exposure by the mechanochemical process and thermal treatment. Such results suggest that the mechanochemical strategy provides a novel approach for rational design and cost-effective production of electrocatalysts, also providing other potential applications in a wide range of areas.
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Affiliation(s)
- Xiaoyuan Fan
- State Key Laboratory of Information Photonics and Optical Communications, School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China; (X.F.); (P.D.); (X.M.); (R.W.); (J.M.); (Y.W.); (D.F.)
| | - Peng Du
- State Key Laboratory of Information Photonics and Optical Communications, School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China; (X.F.); (P.D.); (X.M.); (R.W.); (J.M.); (Y.W.); (D.F.)
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials, Science and Engineering, Tsinghua University, Beijing 100084, China; (Y.L.); (B.D.)
| | - Xiaoxuan Ma
- State Key Laboratory of Information Photonics and Optical Communications, School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China; (X.F.); (P.D.); (X.M.); (R.W.); (J.M.); (Y.W.); (D.F.)
| | - Ruyue Wang
- State Key Laboratory of Information Photonics and Optical Communications, School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China; (X.F.); (P.D.); (X.M.); (R.W.); (J.M.); (Y.W.); (D.F.)
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials, Science and Engineering, Tsinghua University, Beijing 100084, China; (Y.L.); (B.D.)
| | - Jingteng Ma
- State Key Laboratory of Information Photonics and Optical Communications, School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China; (X.F.); (P.D.); (X.M.); (R.W.); (J.M.); (Y.W.); (D.F.)
| | - Yonggang Wang
- State Key Laboratory of Information Photonics and Optical Communications, School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China; (X.F.); (P.D.); (X.M.); (R.W.); (J.M.); (Y.W.); (D.F.)
| | - Dongyu Fan
- State Key Laboratory of Information Photonics and Optical Communications, School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China; (X.F.); (P.D.); (X.M.); (R.W.); (J.M.); (Y.W.); (D.F.)
| | - Yuanzheng Long
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials, Science and Engineering, Tsinghua University, Beijing 100084, China; (Y.L.); (B.D.)
| | - Bohan Deng
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials, Science and Engineering, Tsinghua University, Beijing 100084, China; (Y.L.); (B.D.)
| | - Kai Huang
- State Key Laboratory of Information Photonics and Optical Communications, School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China; (X.F.); (P.D.); (X.M.); (R.W.); (J.M.); (Y.W.); (D.F.)
| | - Hui Wu
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials, Science and Engineering, Tsinghua University, Beijing 100084, China; (Y.L.); (B.D.)
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Amorim JL, Lima FA, Brand ALM, Cunha S, Rezende CM, Fernandes PD. Two New βN-Alkanoyl-5-Hydroxytryptamides with Relevant Antinociceptive Activity. Biomedicines 2021; 9:biomedicines9050455. [PMID: 33922159 PMCID: PMC8146016 DOI: 10.3390/biomedicines9050455] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 04/16/2021] [Accepted: 04/17/2021] [Indexed: 01/08/2023] Open
Abstract
In this work, we describe a new route for the synthesis and the antinociceptive effects of two new βN-alkanoyl-5-hydroxytryptamides (named C20:0-5HT and C22:0-5HT). The antinociceptive activities were evaluated using well-known models of thermal-induced (reaction to a heated plate, the hot plate model) or chemical-induced (licking response to paw injection of formalin, capsaicin, or glutamate) nociception. The mechanism of action for C20:0-5HT and C22:0-5HT was evaluated using naloxone (opioid receptor antagonist, 1 mg/kg), atropine (muscarinic receptor antagonist, 1 mg/kg), AM251 (cannabinoid CB1 receptor antagonist, 1 mg/kg), or ondansetron (5-HT3 serotoninergic receptor antagonist, 0.5 mg/kg) 30 min prior to C20:0-5HT or C22:0-5HT. The substances both presented significant effects by reducing licking behavior induced by formalin, capsaicin, and glutamate and increasing the latency time in the hot plate model. Opioidergic, muscarinic, cannabinoid, and serotoninergic pathways seem to be involved in the antinociceptive activity since their antagonists reversed the observed effect. Opioid receptors are partially involved due to tolerant mice demonstrating less antinociception when treated with both compounds. Our data showed a quicker and simpler route for the synthesis of the new βN-alkanoyl-5-hydroxytryptamides. Both compounds demonstrated significant antinociceptive effects. These new compounds could be used as a scaffold for the synthesis of analogues with promising antinociceptive effects.
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Affiliation(s)
- Jorge Luis Amorim
- Laboratório de Farmacologia da Dor e da Inflamação, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil;
| | - Fernanda Alves Lima
- Centro de Tecnologia, Laboratório de Análise de Aromas, Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-909, Brazil; (F.A.L.); (A.L.M.B.); (C.M.R.)
| | - Ana Laura Macedo Brand
- Centro de Tecnologia, Laboratório de Análise de Aromas, Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-909, Brazil; (F.A.L.); (A.L.M.B.); (C.M.R.)
| | - Silvio Cunha
- Grupo de Pesquisa em Síntese Química e Bioatividade Molecular, Instituto de Química, Universidade Federal da Bahia, Salvador 40170-115, Brazil;
| | - Claudia Moraes Rezende
- Centro de Tecnologia, Laboratório de Análise de Aromas, Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-909, Brazil; (F.A.L.); (A.L.M.B.); (C.M.R.)
| | - Patricia Dias Fernandes
- Laboratório de Farmacologia da Dor e da Inflamação, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil;
- Correspondence:
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Gómez-López P, Espro C, Rodríguez-Padrón D, Balu AM, Ivars-Barceló F, Moreda OI, Alvarado-Beltrán CG, Luque R. Mechanochemical Preparation of Magnetically Separable Fe and Cu-Based Bimetallic Nanocatalysts for Vanillin Production. Nanomaterials (Basel) 2021; 11:1050. [PMID: 33923957 PMCID: PMC8073525 DOI: 10.3390/nano11041050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 04/07/2021] [Accepted: 04/09/2021] [Indexed: 11/16/2022]
Abstract
A highly sustainable method for the preparation of supported iron oxide and copper nanoparticles (NPs) on a biomass-derived carbon by solvent-free mechanochemical process is reported. In-situ mechanochemically obtained extracts from orange peel could behave as a green reducing agent, allowing the formation of Cu metal nanoparticles as well as generating a magnetic phase (magnetite) in the systems via partial Fe3+ reduction. At the same time, orange peel residues also served as template and carbon source, adding oxygen functionalities, which were found to benefit the catalytic performance of mechanochemically synthesized nanomaterials. The series of magnetic Cu-Fe@OP were tested in the oxidation of trans-ferulic acid towards vanillin, remarkably revealing a maximum vanillin yield of 82% for the sample treated at 200 °C.
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Affiliation(s)
- Paulette Gómez-López
- Grupo FQM-383, Departamento de Química Orgánica, Campus de Rabanales, Universidad de Cordoba, Ctra Nnal IV-A, Km 396, 14014 Cordoba, Spain; (P.G.-L.); (D.R.-P.); (A.M.B.)
| | - Claudia Espro
- Dipartimento di Ingegneria, Università di Messina, 98166 Messina, Italy;
| | - Daily Rodríguez-Padrón
- Grupo FQM-383, Departamento de Química Orgánica, Campus de Rabanales, Universidad de Cordoba, Ctra Nnal IV-A, Km 396, 14014 Cordoba, Spain; (P.G.-L.); (D.R.-P.); (A.M.B.)
- Dipartimento di Ingegneria, Università di Messina, 98166 Messina, Italy;
| | - Alina M. Balu
- Grupo FQM-383, Departamento de Química Orgánica, Campus de Rabanales, Universidad de Cordoba, Ctra Nnal IV-A, Km 396, 14014 Cordoba, Spain; (P.G.-L.); (D.R.-P.); (A.M.B.)
| | - Francisco Ivars-Barceló
- Departamento de Química Inorgánica y Química Técnica, Facultad de Ciencias, UNED, Paseo Senda del Rey, 9, 28040 Madrid, Spain; (F.I.-B.); (O.I.M.)
| | - Olvido Irrazábal Moreda
- Departamento de Química Inorgánica y Química Técnica, Facultad de Ciencias, UNED, Paseo Senda del Rey, 9, 28040 Madrid, Spain; (F.I.-B.); (O.I.M.)
| | - Clemente G. Alvarado-Beltrán
- Facultad de Ingeniería Mochis, Universidad Autónoma de Sinaloa, Fuente de Poseidón y Prol. Angel Flores, S.N., Los Mochis, Sinaloa 81223, Mexico
| | - Rafael Luque
- Grupo FQM-383, Departamento de Química Orgánica, Campus de Rabanales, Universidad de Cordoba, Ctra Nnal IV-A, Km 396, 14014 Cordoba, Spain; (P.G.-L.); (D.R.-P.); (A.M.B.)
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Szmeja S, Gubica T, Ostrowski A, Zalewska A, Szeleszczuk Ł, Zawada K, Zielińska-Pisklak M, Skowronek K, Wiweger M. Caffeine-Cyclodextrin Complexes as Solids: Synthesis, Biological and Physicochemical Characterization. Int J Mol Sci 2021; 22:4191. [PMID: 33919556 DOI: 10.3390/ijms22084191] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 04/13/2021] [Accepted: 04/16/2021] [Indexed: 12/16/2022] Open
Abstract
Mechanochemical and in-solution synthesis of caffeine complexes with α-, β-, and γ-cyclodextrins was optimized. It was found that short-duration, low-energy cogrinding, and evaporation (instead of freeze-drying) are effective methods for the formation and isolation of these complexes. The products obtained, their pure components, and their mixtures were examined by powder X-ray diffraction (PXRD), differential scanning calorimetry (DSC), FT-IR and Raman spectroscopy. Moreover, molecular modeling provided an improved understanding of the association process between the guest and host molecules in these complexes. The complexes were found to exhibit high toxicity in zebrafish (Danio rerio) embryos, in contrast to pure caffeine and cyclodextrins at the same molar concentrations. HPLC measurements of the caffeine levels in zebrafish embryos showed that the observed cytotoxicity is not caused by an increased caffeine concentration in the body of the organism, as the concentrations are similar regardless of the administered caffeine form. Therefore, the observed high toxicity could be the result of the synergistic effect of caffeine and cyclodextrins.
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Dulian P, Bąk W, Piz M, Garbarz-Glos B, Sachuk OV, Wieczorek-Ciurowa K, Lisińska-Czekaj A, Czekaj D. Mg 2+ Doping Effects on the Structural and Dielectric Properties of CaCu 3Ti 4O 12 Ceramics Obtained by Mechanochemical Synthesis. Materials (Basel) 2021; 14:1187. [PMID: 33802420 DOI: 10.3390/ma14051187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 02/22/2021] [Accepted: 02/24/2021] [Indexed: 11/17/2022]
Abstract
In this study, ceramic CaCu3Ti4O12 (CCTO) and CaCu3−xMgxTi4O12 solid solutions in which 0.1 ≤ x ≤ 0.5 were prepared by the mechanochemical method, realized by a high-energy ball milling technique. The effects of the Mg2+ ion concentration and sintering time on the dielectric response in the prepared ceramics were investigated and discussed. It was demonstrated that, by the use of a sufficiently high energy of mechanochemical treatment, it is possible to produce a crystalline product after only 2 h of milling the mixture of the oxide substrates. Both the addition of magnesium ions and the longer sintering time of the mechanochemically-produced ceramics cause excessive grain growth and significantly affect the dielectric properties of the materials. The X-ray diffraction (XRD) analysis showed that all of the as-prepared solid solutions, CaCu3−xMgxTi4O12 (0.0 ≤ x ≤ 0.5), regardless of the sintering time, exhibit a cubic perovskite single phase. The dielectric study showed two major contributions associated with the grains and the grain boundaries. The analysis of the electric modules of these ceramics confirmed the occurrence of Maxwell–Wagner type relaxation, which is dependent on the temperature.
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Du Y, Xu X, Ma F, Du C. Solvent-Free Synthesis of Iron-Based Metal-Organic Frameworks (MOFs) as Slow-Release Fertilizers. Polymers (Basel) 2021; 13:561. [PMID: 33668604 PMCID: PMC7918741 DOI: 10.3390/polym13040561] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 02/08/2021] [Accepted: 02/10/2021] [Indexed: 11/16/2022] Open
Abstract
Metal-organic frameworks (MOFs) were usually synthesized in hydrothermal conditions; in this study, a more energy-saving, easier to control, and solvent-free mechanochemical method was firstly applied to synthesize MOFs with varied reactants as slow release fertilizer, and the components and structures were characterized by X-ray diffraction (XRD), Fourier transform infrared total attenuated reflectance (FTIR-ATR), and laser-induced breakdown spectroscopy (LIBS). Results showed that three MOFs (compounds I, II, and III) were obtained, the MOFs were confirmed as oxalate phosphate oxalate frameworks (OPA-MOF), and ions were adsorbed between layers that contributed to the contents, while urea molecules mainly impacted the structure. The elemental compositions significantly varied among the three compounds; compound I showed the highest content of N (4.91%), P (15.71%), and Fe (18.60%), compound III indicated the highest content of C (6.52%) and K (12.59%), while the contents of C, K, P, and Fe in compound II were in the medium range. Similar release profiles of Fe and P were found among the three MOFs, and the release rates of nutrients were demonstrated as the order of N > K > P > Fe. The compositions and release profiles demonstrated potential application of MOFs as a novel slow-release fertilizer.
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Affiliation(s)
- Yaxiao Du
- The State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science Chinese Academy of Sciences, Nanjing 210008, China; (Y.D.); (X.X.); (F.M.)
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xuebin Xu
- The State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science Chinese Academy of Sciences, Nanjing 210008, China; (Y.D.); (X.X.); (F.M.)
| | - Fei Ma
- The State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science Chinese Academy of Sciences, Nanjing 210008, China; (Y.D.); (X.X.); (F.M.)
| | - Changwen Du
- The State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science Chinese Academy of Sciences, Nanjing 210008, China; (Y.D.); (X.X.); (F.M.)
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
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Kumar S, Gupta A, Prasad R, Singh S. Novel Aceclofenac Cocrystals with l-Cystine: Virtual Coformer Screening, Mechanochemical Synthesis, and Physicochemical Investigations. Curr Drug Deliv 2021; 18:88-100. [PMID: 32807053 DOI: 10.2174/1567201817666200817110949] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 06/09/2020] [Accepted: 07/08/2020] [Indexed: 11/22/2022]
Abstract
AIM Current work focuses on the improvement of the solubility and dissolution of ACF by the cocrystal approach. BACKGROUND Aceclofenac (ACF) is one of the commonly used Nonsteroidal Anti-Inflammatory Drug (NSAID) representing a variety of therapeutic applications including management of pain, inflammation, rheumatoid arthritis, and osteoarthritis, etc. But very low solubility and dissolution rate of ACF compromise its therapeutic utility. Now a day's cocrystallization technique has emerged as a novel technique for modulation of the said problems. OBJECTIVE The Specific objectives of this research work were mechanochemical synthesis, characterization, and performance evaluation of aceclofenac cocrystal. METHODS ACF was screened with various pharmaceutically acceptable coformers (Selected from GRAS and EAFUS list) using MOPAC software and physical screening method to find out novel cocrystals of ACF with enhanced solubility and dissolution rate. Novel cocrystals (multi-component crystalline solid) of ACF with l-cystine were prepared by a neat grinding method and by liquid assisted grinding method. The synthesized cocrystals (ACF-l-CYS NG and ACF-l-CYS LAG) were characterized carefully by Differential Scanning Calorimetry (DSC), Infrared Spectroscopy (IR), and Powder XRay Diffraction (PXRD) to verify the formation of the cocrystals. Pharmaceutically significant properties such as powder dissolution rate, solubility, and stability of the prepared cocrystals were evaluated. RESULTS Compared to pure ACF, the prepared cocrystals showed superior solubility and dissolution rate. The prepared cocrystals were found to be stable and non-hygroscopic under study conditions. CONCLUSION The cocrystallization technique was successfully utilized to increase the solubility and dissolution rate of aceclofenac.
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Affiliation(s)
- Saroj Kumar
- Department of Pharmaceutical Chemistry, Goel Institute of Pharmacy and Sciences, Faizabad Road, Lucknow, U.P., 226028, India
| | - Amresh Gupta
- Department of Pharmaceutical Chemistry, Goel Institute of Pharmacy and Sciences, Faizabad Road, Lucknow, U.P., 226028, India
| | - Rammani Prasad
- Department of Pharmaceutical Chemistry, Birla Institute of Technology, Ranchi, Jharkhand, 835 215, India
| | - Satyawan Singh
- Department of Pharmaceutical Chemistry, Goel Institute of Pharmacy and Sciences, Faizabad Road, Lucknow, U.P., 226028, India
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Gómez-López P, Salatti-Dorado JÁ, Rodríguez-Padrón D, Cano M, Alvarado-Beltrán CG, Puente-Santiago AR, Giner-Casares JJ, Luque R. Mechanochemically Synthetized PAN-Based Co-N-Doped Carbon Materials as Electrocatalyst for Oxygen Evolution Reaction. Nanomaterials (Basel) 2021; 11:290. [PMID: 33499395 DOI: 10.3390/nano11020290] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 01/15/2021] [Accepted: 01/20/2021] [Indexed: 11/16/2022]
Abstract
We report a new class of polyacrylonitrile (PAN)-based Co-N-doped carbon materials that can act as suitable catalyst for oxygen evolution reactions (OER). Different Co loadings were mechanochemically added into post-consumed PAN fibers. Subsequently, the samples were treated at 300 °C under air (PAN-A) or nitrogen (PAN-N) atmosphere to promote simultaneously the Co3O4 species and PAN cyclization. The resulting electrocatalysts were fully characterized and analyzed by X-ray diffraction (XRD) and photoelectron spectroscopy (XPS), transmission (TEM) and scanning electron (SEM) microscopies, as well as nitrogen porosimetry. The catalytic performance of the Co-N-doped carbon nanomaterials were tested for OER in alkaline environments. Cobalt-doped PAN-A samples showed worse OER electrocatalytic performance than their homologous PAN-N ones. The PAN-N/3% Co catalyst exhibited the lowest OER overpotential (460 mV) among all the Co-N-doped carbon nanocomposites, reaching 10 mA/cm2. This work provides in-depth insights on the electrocatalytic performance of metal-doped carbon nanomaterials for OER.
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Dutková E, Bujňáková ZL, Sphotyuk O, Jakubíková J, Cholujová D, Šišková V, Daneu N, Baláž M, Kováč J, Kováč J, Briančin J, Demchenko P. SDS-Stabilized CuInSe 2/ZnS Multinanocomposites Prepared by Mechanochemical Synthesis for Advanced Biomedical Application. Nanomaterials (Basel) 2020; 11:E69. [PMID: 33396849 PMCID: PMC7823814 DOI: 10.3390/nano11010069] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 12/17/2020] [Accepted: 12/24/2020] [Indexed: 02/06/2023]
Abstract
The CuInSe2/ZnS multiparticulate nanocomposites were first synthesized employing two-step mechanochemical synthesis. In the first step, tetragonal CuInSe2 crystals prepared from copper, indium and selenium precursors were co-milled with zinc acetate dihydrate and sodium sulfide nonahydrate as precursors for ZnS in different molar ratios by mechanochemical route in a planetary mill. In the second step, the prepared CuInSe2/ZnS nanocrystals were further milled in a circulation mill in sodium dodecyl sulphate (SDS) solution (0.5 wt.%) to stabilize the synthesized nanoparticles. The sodium dodecyl sulphate capped CuInSe2/ZnS 5:0-SDS nanosuspension was shown to be stable for 20 weeks, whereas the CuInSe2/ZnS 4:1-SDS one was stable for about 11 weeks. After sodium dodecyl sulphate capping, unimodal particle size distribution was obtained with particle size medians approaching, respectively, 123 nm and 188 nm for CuInSe2/ZnS 5:0-SDS and CuInSe2/ZnS 4:1-SDS nanocomposites. Successful stabilization of the prepared nanosuspensions due to sodium dodecyl sulphate covering the surface of the nanocomposite particles was confirmed by zeta potential measurements. The prepared CuInSe2/ZnS 5:0-SDS and CuInSe2/ZnS 4:1-SDS nanosuspensions possessed anti-myeloma sensitizing potential assessed by significantly reduced viability of multiple myeloma cell lines, with efficient fluorescence inside viable cells and higher cytotoxic efficacy in CuInSe2/ZnS 4:1-SDS nanosuspension.
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Affiliation(s)
- Erika Dutková
- Department of Mechanochemistry, Institute of Geotechnics, Slovak Academy of Sciences, Watsonova 45, 04001 Košice, Slovakia; (Z.L.B.); (M.B.); (J.B.)
| | - Zdenka Lukáčová Bujňáková
- Department of Mechanochemistry, Institute of Geotechnics, Slovak Academy of Sciences, Watsonova 45, 04001 Košice, Slovakia; (Z.L.B.); (M.B.); (J.B.)
| | - Oleh Sphotyuk
- Faculty of Science and Technology, Jan Dlugosz University, Al. Armii Krajowej, 13/15, 42201 Czestochowa, Poland;
- Department of Optical Glass and Ceramics, Vlokh Institute of Physical Optics, 23, Dragomanov Str., 79005 Lviv, Ukraine
| | - Jana Jakubíková
- Biomedical Research Center, Cancer Research Institute, Slovak Academy of Sciences, Dúbravská cesta 9, 84505 Bratislava, Slovakia; (J.J.); (D.C.); (V.Š.)
- Centre of Advanced Material Application, Slovak Academy of Sciences, Dúbravská cesta 5807/9, 84511 Bratislava, Slovakia
| | - Danka Cholujová
- Biomedical Research Center, Cancer Research Institute, Slovak Academy of Sciences, Dúbravská cesta 9, 84505 Bratislava, Slovakia; (J.J.); (D.C.); (V.Š.)
- Centre of Advanced Material Application, Slovak Academy of Sciences, Dúbravská cesta 5807/9, 84511 Bratislava, Slovakia
| | - Viera Šišková
- Biomedical Research Center, Cancer Research Institute, Slovak Academy of Sciences, Dúbravská cesta 9, 84505 Bratislava, Slovakia; (J.J.); (D.C.); (V.Š.)
| | - Nina Daneu
- Advanced Materials Department, Jozef Štefan Institute, Jamova 39, 1000 Ljubljana, Slovenia;
| | - Matej Baláž
- Department of Mechanochemistry, Institute of Geotechnics, Slovak Academy of Sciences, Watsonova 45, 04001 Košice, Slovakia; (Z.L.B.); (M.B.); (J.B.)
| | - Jaroslav Kováč
- Institute of Electronics and Photonics, Slovak University of Technology, 81219 Bratislava, Slovakia; (J.K.); (J.K.J.)
| | - Jaroslav Kováč
- Institute of Electronics and Photonics, Slovak University of Technology, 81219 Bratislava, Slovakia; (J.K.); (J.K.J.)
| | - Jaroslav Briančin
- Department of Mechanochemistry, Institute of Geotechnics, Slovak Academy of Sciences, Watsonova 45, 04001 Košice, Slovakia; (Z.L.B.); (M.B.); (J.B.)
| | - Pavlo Demchenko
- Department of Inorganic Chemistry, Ivan Franko National University of Lviv, 107, Tarnavskogo Str., 79017 Lviv, Ukraine;
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Chong-Canto S, García-Báez EV, Martínez-Martínez FJ, Ramos-Organillo AA, Padilla-Martínez II. Mechanochemical Synthesis and Structure of the Tetrahydrate and Mesoporous Anhydrous Metforminium(2+)- N, N'-1,4-Phenylenedioxalamic Acid (1:2) Salt: The Role of Hydrogen Bonding and n→π * Charge Assisted Interactions. Pharmaceutics 2020; 12:E998. [PMID: 33096739 PMCID: PMC7594043 DOI: 10.3390/pharmaceutics12100998] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 10/13/2020] [Accepted: 10/18/2020] [Indexed: 11/20/2022] Open
Abstract
A new organic salt of metformin, an antidiabetic drug, and N,N'-(1,4-phenylene)dioxalamic acid, was mechanochemically synthesized, purified by crystallization from solution and characterized by single X-ray crystallography. The structure revealed a salt-type crystal hydrate composed of one dicationic metformin unit, two monoanionic units of the acid and four water molecules, namely H2Mf(HpOXA)2∙4H2O. X-ray powder, IR, 13C-CPMAS, thermal and BET adsorption-desorption analyses were performed to elucidate the structure of the molecular and supramolecular structure of the anhydrous microcrystalline mesoporous solid H2Mf(HpOXA)2. The results suggest that their structures, conformation and hydrogen bonding schemes are very similar. To the best of our knowledge, the selective formation of the monoanion HpOXA-, as well as its structure in the solid, is herein reported for the first time. Regular O(δ-)∙∙∙C(δ), O(δ-)∙∙∙N+ and bifacial O(δ-)∙∙∙C(δ)∙∙∙O(δ-) of n→π * charge-assisted interactions are herein described in H2MfA organic salts which could be responsible of the interactions of metformin in biologic systems. The results support the participation of n→π * charge-assisted interactions independently, and not just as a short contact imposed by the geometric constraint due to the hydrogen bonding patterns.
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Affiliation(s)
- Sayuri Chong-Canto
- Laboratorio de Química Supramolecular y Nanociencias, Instituto Politécnico Nacional-UPIBI, Av. Acueducto s/n Barrio la Laguna Ticomán, Ciudad de México C.P. 07340, Mexico; (S.C.-C.); (E.V.G.-B.)
| | - Efrén V. García-Báez
- Laboratorio de Química Supramolecular y Nanociencias, Instituto Politécnico Nacional-UPIBI, Av. Acueducto s/n Barrio la Laguna Ticomán, Ciudad de México C.P. 07340, Mexico; (S.C.-C.); (E.V.G.-B.)
| | - Francisco J. Martínez-Martínez
- Facultad de Ciencias Químicas, Universidad de Colima, Km. 9 Carretera Colima-Coquimatlán, Coquimatlán C.P. 28400, Colima, Mexico; (F.J.M.-M.); (A.A.R.-O.)
| | - Angel A. Ramos-Organillo
- Facultad de Ciencias Químicas, Universidad de Colima, Km. 9 Carretera Colima-Coquimatlán, Coquimatlán C.P. 28400, Colima, Mexico; (F.J.M.-M.); (A.A.R.-O.)
| | - Itzia I. Padilla-Martínez
- Laboratorio de Química Supramolecular y Nanociencias, Instituto Politécnico Nacional-UPIBI, Av. Acueducto s/n Barrio la Laguna Ticomán, Ciudad de México C.P. 07340, Mexico; (S.C.-C.); (E.V.G.-B.)
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Achimovičová M, Baláž M, Girman V, Kurimský J, Briančin J, Dutková E, Gáborová K. Comparative Study of Nanostructured CuSe Semiconductor Synthesized in a Planetary and Vibratory Mill. Nanomaterials (Basel) 2020; 10:E2038. [PMID: 33076574 DOI: 10.3390/nano10102038] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 09/27/2020] [Accepted: 10/14/2020] [Indexed: 11/17/2022]
Abstract
Copper(II) selenide, CuSe was prepared from Cu and Se powders in a stoichiometric ratio by a rapid, and convenient one-step mechanochemical synthesis, after 5 and 10 min of milling in a planetary, and an industrial vibratory, mill. The kinetics of the synthesis, and the structural, morphological, optical, and electrical properties of CuSe products prepared in the two types of mill were studied. Their crystal structure, physical properties, and morphology were characterized by X-ray diffraction, specific surface area measurements, particle size distribution, scanning, and transmission electron microscopy. The products crystallized in a hexagonal crystal structure. However, a small amount of orthorhombic phase was also identified. The scanning electron microscopy revealed that both products consist of agglomerated particles of irregular shape, forming clusters with a size ~50 mm. Transmission electron microscopy proved the nanocrystalline character of the CuSe particles. The optical properties were studied using UV-Vis and photoluminescence spectroscopy. The determined band gap energies of 1.6 and 1.8 eV for the planetary- and vibratory-milled product, respectively, were blue-shifted relative to the bulk CuSe. CuSe prepared in the vibratory mill had lower resistivity and higher conductivity, which corresponds to its larger crystallite size in comparison with CuSe prepared in the planetary mill.
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Baran A, Polański M. Magnesium-Based Materials for Hydrogen Storage-A Scope Review. Materials (Basel) 2020; 13:E3993. [PMID: 32916910 PMCID: PMC7559164 DOI: 10.3390/ma13183993] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 09/03/2020] [Accepted: 09/05/2020] [Indexed: 11/16/2022]
Abstract
Magnesium hydride and selected magnesium-based ternary hydride (Mg2FeH6, Mg2NiH4, and Mg2CoH5) syntheses and modification methods, as well as the properties of the obtained materials, which are modified mostly by mechanical synthesis or milling, are reviewed in this work. The roles of selected additives (oxides, halides, and intermetallics), nanostructurization, polymorphic transformations, and cyclic stability are described. Despite the many years of investigations related to these hydrides and the significant number of different additives used, there are still many unknown factors that affect their hydrogen storage properties, reaction yield, and stability. The described compounds seem to be extremely interesting from a theoretical point of view. However, their practical application still remains debatable.
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Affiliation(s)
| | - Marek Polański
- Department of Functional Materials and Hydrogen Technology, Military University of Technology, Kaliskiego 2 Street, 00-908 Warsaw, Poland;
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Madhusha C, Munaweera I, Karunaratne V, Kottegoda N. Facile Mechanochemical Approach To Synthesizing Edible Food Preservation Coatings Based On Alginate/Ascorbic Acid-Layered Double Hydroxide Bio-Nanohybrids. J Agric Food Chem 2020; 68:8962-8975. [PMID: 32806127 DOI: 10.1021/acs.jafc.0c01879] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A bionanohybrid based on ascorbic acid-intercalated layered double hydroxides (LDHs) was synthesized using a facile and novel mechanochemical grinding technique, and its efficacy as an edible food coating is reported. Ascorbic acid-intercalated Mg-Al-LDHs (AA-LDHs) are synthesized using a green water-assisted grinding approach. The successful synthesis of the mechanochemically ground AA-LDHs was confirmed by the shifts observed in the basal peaks of the LDHs based on a powder X-ray diffraction, changes in the positions of vibrational frequencies of ascorbic acid based on Fourier Transform Infrared Spectroscopy, and significant changes in the intensity and peak positions of the core-shell bands based on X-ray photoelectron spectroscopy. The resulting nanohybrid further demonstrates thermal stability in thermogravimetric and derivative thermogravimetric analysis. Transmission electron microscopy images of the mechanochemically synthesized AA-LDHs reveal a plate-like morphology, which is a characteristic of the hydrotalcite-like structure. In a novel application, an edible coating was prepared by blending the AA-LDHs into a biocompatible alginate matrix, and the coating was developed on freshly plucked strawberries using the dip-coating method. In order to evaluate the efficacy of the coating, the total phenolic content, pH, microbial growth, weight loss, titratable acidity, and ascorbic acid content were monitored in the coated and uncoated fruits for a period of 18 days. The results reveal that the shelf life of strawberries increases from 9 days to 15 days for the nanohybrid coated fruits, suggesting the potential food preservation applications of the nanohybrid.
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Affiliation(s)
- Chamalki Madhusha
- Department of Chemistry, Faculty of Applied Sciences, University of Sri Jayewardenepura, Gangodawila, Nugegoda, Sri Lanka
| | - Imalka Munaweera
- Department of Chemistry, Faculty of Applied Sciences, University of Sri Jayewardenepura, Gangodawila, Nugegoda, Sri Lanka
- Instrument Center, Faculty of Applied Sciences, University of Sri Jayewardenepura, Gangodawila, Nugegoda, Sri Lanka
| | - Veranja Karunaratne
- Department of Chemistry, Faculty of Science, University of Peradeniya, Peradeniya 20400, Sri Lanka
| | - Nilwala Kottegoda
- Department of Chemistry, Faculty of Applied Sciences, University of Sri Jayewardenepura, Gangodawila, Nugegoda, Sri Lanka
- Center for Advanced Materials Research (CAMR), Faculty of Applied Sciences, University of Sri Jayewardenepura, Gangodawila 10250, Nugegoda, Sri Lanka
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Kudłacik-Kramarczyk S, Drabczyk A, Głąb M, Dulian P, Bogucki R, Miernik K, Sobczak-Kupiec A, Tyliszczak B. Mechanochemical Synthesis of BaTiO 3 Powders and Evaluation of Their Acrylic Dispersions. Materials (Basel) 2020; 13:E3275. [PMID: 32717931 DOI: 10.3390/ma13153275] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Revised: 07/16/2020] [Accepted: 07/21/2020] [Indexed: 11/17/2022]
Abstract
Barium titanate is a ferroelectric perovskite with unique electric properties; therefore, it is widely applied in the fabrication of inorganic coatings or thin films, capacitors, or in the production of devices for energy storage and conversion. This paper describes the mechanochemical synthesis of BaTiO3 from BaO and TiO2 using a ball mill. XRD analysis allowed concluding that barium titanate was formed after 90 min of mechanochemical grinding. It was also proved by spectroscopic analysis and the band corresponding to Ti–O vibrations on obtained Fourier Transform Infrared (FT-IR) spectra. The specific surface area of obtained powder was 25.275 m2/g. Next, formed perovskite was dispersed in an acrylic poly(ethylene glycol) (superabsorbent polymer suspension, SAP) suspension prepared using microwave radiation. Final suspensions differed in the concentration of SAP applied. It was proven that the increase of SAP concentration does not affect the acidity of the suspension, but it does increase its dynamic viscosity. A sample with 83 wt.% of SAP reached a value of approximately 140 mPa∙s. Dispersions with higher values of SAP mass fraction exhibited lower sedimentation rates. Molecules such as SAP may adsorb to the surface of particles and thus prevent their agglomeration and make them well monodispersed. Based on the performed experiments, it can be concluded that acrylic poly(ethylene glycol) suspension is a suitable fluid that may stabilize barium titanate dispersions.
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Zhao LY, Dong XL, Lu AH. Mechanochemical Synthesis of Porous Carbons and Their Applications in Catalysis. Chempluschem 2020; 85:866-875. [PMID: 32378808 DOI: 10.1002/cplu.202000191] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 04/28/2020] [Indexed: 11/08/2022]
Abstract
Porous carbons have shown considerable potential in catalysis as either as supports or metal-free catalysts. Various methods based on solution chemistry have been intensively developed for the preparation of porous carbon-based catalysts with controllable morphology, pore structure, surface chemical property as well as the desired active sites. Nowadays, mechanochemical synthesis, a re-emerging strategy, has become more and more popular in the synthesis of porous carbons, due to its feasibility and high synthetic efficiency under solvent-free condition. This Minireview presents recent advances in the mechanochemical synthesis of porous carbons by ball milling, and their applications in catalysis. It starts a brief introduction of the characteristics and work mechanism of ball milling, and then discuss the preparation of porous carbons as metal-free catalysts and carbon-supported metal catalysts. Finally, some issues and further opportunities for the mechanochemical synthesis of porous carbon-based catalysts are proposed and discussed.
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Affiliation(s)
- Li-Yuan Zhao
- State Key Laboratory of Fine Chemicals Liaoning Key Laboratory for Catalytic Conversion of Carbon Resources School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Xiao-Ling Dong
- State Key Laboratory of Fine Chemicals Liaoning Key Laboratory for Catalytic Conversion of Carbon Resources School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, P. R. China
| | - An-Hui Lu
- State Key Laboratory of Fine Chemicals Liaoning Key Laboratory for Catalytic Conversion of Carbon Resources School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, P. R. China
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Soliman MMA, Kopylovich MN, Alegria ECBA, Ribeiro APC, M. Ferraria A, M. Botelho do Rego A, Correia LMM, Saraiva MS, Pombeiro AJL. Ultrasound and Radiation-Induced Catalytic Oxidation of 1-Phenylethanol to Acetophenone with Iron-Containing Particulate Catalysts. Molecules 2020; 25:molecules25030740. [PMID: 32046303 PMCID: PMC7038031 DOI: 10.3390/molecules25030740] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 02/05/2020] [Accepted: 02/06/2020] [Indexed: 11/26/2022] Open
Abstract
Iron-containing particulate catalysts of 0.1–1 µm size were prepared by wet and ball-milling procedures from common salts and characterized by FTIR, TGA, UV-Vis, PXRD, FEG-SEM, and XPS analyses. It was found that when the wet method was used, semi-spherical magnetic nanoparticles were formed, whereas the mechanochemical method resulted in the formation of nonmagnetic microscale needles and rectangles. Catalytic activity of the prepared materials in the oxidation of 1-phenylethanol to acetophenone was assessed under conventional heating, microwave (MW) irradiation, ultrasound (US), and oscillating magnetic field of high frequency (induction heating). In general, the catalysts obtained by wet methods exhibit lower activities, whereas the materials prepared by ball milling afford better acetophenone yields (up to 83%). A significant increase in yield (up to 4 times) was observed under the induction heating if compared to conventional heating. The study demonstrated that MW, US irradiations, and induction heating may have great potential as alternative ways to activate the catalytic system for alcohol oxidation. The possibility of the synthesized material to be magnetically recoverable has been also verified.
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Affiliation(s)
- Mohamed M. A. Soliman
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal; (M.M.A.S.); (A.J.L.P.)
- Centro de Química e Bioquímica, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal;
| | - Maximilian N. Kopylovich
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal; (M.M.A.S.); (A.J.L.P.)
- Correspondence: (M.N.K.); (E.C.B.A.A.); (A.P.C.R.); Tel.: +351-218-317-163 (E.C.B.A.A.)
| | - Elisabete C. B. A. Alegria
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal; (M.M.A.S.); (A.J.L.P.)
- Área Departamental de Engenharia Química, ISEL, Instituto Politécnico de Lisboa, 1959-007 Lisboa, Portugal;
- Correspondence: (M.N.K.); (E.C.B.A.A.); (A.P.C.R.); Tel.: +351-218-317-163 (E.C.B.A.A.)
| | - Ana P. C. Ribeiro
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal; (M.M.A.S.); (A.J.L.P.)
- Correspondence: (M.N.K.); (E.C.B.A.A.); (A.P.C.R.); Tel.: +351-218-317-163 (E.C.B.A.A.)
| | - Ana M. Ferraria
- BSIRG, IBB-Institute for Bioengineering and Biosciences, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal; (A.M.F.); (A.M.B.d.R.)
| | - Ana M. Botelho do Rego
- BSIRG, IBB-Institute for Bioengineering and Biosciences, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal; (A.M.F.); (A.M.B.d.R.)
| | - Luís M. M. Correia
- Área Departamental de Engenharia Química, ISEL, Instituto Politécnico de Lisboa, 1959-007 Lisboa, Portugal;
| | - Marta S. Saraiva
- Centro de Química e Bioquímica, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal;
- BioISI-Biosystems & Integrative Sciences Institute, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1049-001 Lisboa, Portugal
| | - Armando J. L. Pombeiro
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal; (M.M.A.S.); (A.J.L.P.)
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49
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Brekalo I, Deliz DE, Kane CM, Friščić T, Holman KT. Exploring the Scope of Macrocyclic "Shoe-last" Templates in the Mechanochemical Synthesis of RHO Topology Zeolitic Imidazolate Frameworks (ZIFs). Molecules 2020; 25:E633. [PMID: 32024141 PMCID: PMC7037713 DOI: 10.3390/molecules25030633] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 01/20/2020] [Accepted: 01/22/2020] [Indexed: 11/16/2022] Open
Abstract
The macrocyclic cavitand MeMeCH2 is used as a template for the mechanochemical synthesis of 0.2MeMeCH2@RHO-Zn16(Cl2Im)32 (0.2MeMeCH2@ZIF-71) and RHO-ZnBIm2 (ZIF-11) zeolitic imidazolate frameworks (ZIFs). It is shown that MeMeCH2 significantly accelerates the mechanochemical synthesis, providing high porosity products (BET surface areas of 1140 m2/g and 869 m2/g, respectively). Templation of RHO-topology ZIF frameworks constructed of linkers larger than benzimidazole (HBIm) was unsuccessful. It is also shown that cavitands other than MeMeCH2-namely MeHCH2, MeiBuCH2, HPhCH2, MePhCH2, BrPhCH2, BrC5CH2-can serve as effective templates for the synthesis of x(cavitand)@RHO-ZnIm2 products. The limitations on cavitand size and shape are explored in terms of their effectiveness as templates.
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Affiliation(s)
- Ivana Brekalo
- Department of Chemistry, Georgetown University, Washington, DC 20057, USA; (I.B.); (D.E.D.); (C.M.K.)
| | - David E. Deliz
- Department of Chemistry, Georgetown University, Washington, DC 20057, USA; (I.B.); (D.E.D.); (C.M.K.)
| | - Christopher M. Kane
- Department of Chemistry, Georgetown University, Washington, DC 20057, USA; (I.B.); (D.E.D.); (C.M.K.)
| | - Tomislav Friščić
- Department of Chemistry, McGill University, Montreal, QC H3A 0B8, Canada
| | - K. Travis Holman
- Department of Chemistry, Georgetown University, Washington, DC 20057, USA; (I.B.); (D.E.D.); (C.M.K.)
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50
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Tang S, Xiao X, Hu J, Gao B, Chen H, Peng Z, Wen J, Era M, Zou D. Solvent-Free Mechanochemical Synthesis of a Systematic Series of Pure-Phase Mixed-Halide Perovskites MAPb(I x Br 1-x ) 3 and MAPb(Br x Cl 1-x ) 3 for Continuous Composition and Band-Gap Tuning. Chempluschem 2020; 85:240-246. [PMID: 31990454 DOI: 10.1002/cplu.201900723] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 01/10/2020] [Indexed: 11/10/2022]
Abstract
Hybrid perovskites have recently received much attention in optoelectronic applications. However, hybrid perovskites are unstable in a humid environment. Mixed halide perovskites (MHPs) show enhanced stability and band-gap tunability upon engineering of their halide composition. Here, MHPs are prepared through a solvent-free mechanochemical synthesis (MCS) route that allows superior control over halide compositions than the solvent synthesis routes (SS). The MCS route eliminates the problem in the preparation of MAPb(Ix Br1-x )3 with continuously varying x, while maintaining the material properties and suppressing phase segregation present in SS routes. UV-vis absorption and X-ray diffraction patterns confirm the production of the desired pure-phase MHPs. For MAPb(Ix Br1-x )3 (0≤x≤1), with increased ratio of halide (x), the cubic phase gradually transforms into the tetragonal phase and band-gap tunability is accomplished. The MCS route for the preparation of MHPs is a very promising and efficient technique for superior control in optoelectronic properties, leading to improved control in fabrication approaches.
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Affiliation(s)
- Sheng Tang
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Polymer Chemistry and Physics of Ministry of Education Center for Soft Matter Science and Engineering College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China
| | - Xinyu Xiao
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Polymer Chemistry and Physics of Ministry of Education Center for Soft Matter Science and Engineering College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China
| | - Jing Hu
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Polymer Chemistry and Physics of Ministry of Education Center for Soft Matter Science and Engineering College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China
| | - Bo Gao
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Polymer Chemistry and Physics of Ministry of Education Center for Soft Matter Science and Engineering College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China
| | - Hunglin Chen
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Polymer Chemistry and Physics of Ministry of Education Center for Soft Matter Science and Engineering College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China
| | - Zongyang Peng
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Polymer Chemistry and Physics of Ministry of Education Center for Soft Matter Science and Engineering College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China
| | - Jianchun Wen
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Polymer Chemistry and Physics of Ministry of Education Center for Soft Matter Science and Engineering College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China
| | - Masanao Era
- Department of Chemistry and Applied Chemistry, Saga University, Saga, 840-8502, Japan
| | - Dechun Zou
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Polymer Chemistry and Physics of Ministry of Education Center for Soft Matter Science and Engineering College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China.,Beijing Engineering Research Center for Active Matrix Display, Peking University, Beijing, 100871, P. R. China
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