Article
Oceanography
L. J. A. Gerringa, M. J. A. Rijkenberg, H. A. Slagter, P. Laan, R. Paffrath, D. Bauch, M. Rutgers van der Loeff, R. Middag
Summary: During the PS94 expedition in summer 2015, sources and sinks of dissolved metals in the central Arctic Ocean were studied, revealing different concentrations of metals in various regions, highlighting the importance of different water sources in influencing metal distributions.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2021)
Article
Multidisciplinary Sciences
Yuguang Pu, Duncan Moseley, Zhen He, Krishna Chaitanya Pitike, Michael E. Manley, Jiaqiang Yan, Valentino R. Cooper, Valerie Mitchell, Vanessa K. Peterson, Bernt Johannessen, Raphael P. Hermann, Peng Cao
Summary: Researchers have developed a bottom-up method for synthesizing rocksalt high-entropy oxides (HEOs) containing Mn and Fe. They investigated the crystal structure and random cation-site occupancy of FeO-HEO, showing improved structural robustness and the viability of an oxygen sublattice as a buffer layer. Compositional analysis revealed the valence and spin state of the iron species, and the antiferromagnetic order of FeO-HEO below a transition temperature around 218 K was reported, along with predictions for the phase stability conditions of Mn and Fe-containing HEOs.
Article
Engineering, Environmental
Nazia Hossain, Sabzoi Nizamuddin, Kalpit Shah
Summary: This study synthesized novel rice husk-based adsorbents activated by potassium hydroxide and applied them to remove hazardous heavy metal ions from synthetic wastewater. The results showed that both the KOH-RHH and AgNP-KOH-RH adsorbents had high adsorption capacity and color removal efficiency, which are significant for industrial wastewater treatment and adsorption mechanism research.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Thermodynamics
A. P. C. Siqueira, E. Y. Ionashiro, G. Bannach, A. R. De Souza, N. H. Morgon, M. A. Soares, A. B. Siqueira, M. I. G. Leles
Summary: Solid-state M-Val compounds were synthesized and studied using thermal and spectroscopic analysis, revealing information such as stoichiometry, hydration level, and thermal behavior. Evolved gas analysis identified the gas components in the compounds, while the antimicrobial activity of metal ions coordinated with Val was also investigated.
THERMOCHIMICA ACTA
(2021)
Article
Chemistry, Physical
V. Semin, J. Jiang, V. I. Polkin, M. Saito, Y. Ikuhara, D. V. Louzguine-Luzgin
Summary: This study investigates the crystallization behavior of Ti-Ni-Cu glassy alloys with the addition of transition metals Cr, Mn, and Fe, which alters the transformation temperature and heat effects. Crystallization in the Fe-bearing alloy initiates on the free surface, leading to strong <100> texture formation, while Mn and Cr-containing samples undergo crystallization within the entire volume.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Environmental
Kaitian Zheng, Jianpo Ren, Xiaomin Li, Guoning Li, Long Jiao, Chunjian Xu
Summary: This study develops a non-noble metal catalyst for efficient alkaline electrochemical water splitting. The catalyst, a series of crystalline CoMP-decorated amorphous CoM LDH nanomaterials, shows increased catalytic active sites, optimal intermediate adsorption/dissociation capability, and synergistic effects between transition metals, leading to enhanced catalytic performance. The optimized cell assembled with this catalyst exhibits excellent durability and ultralow cell voltages for driving high current densities.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Biochemistry & Molecular Biology
Thomas Dippong, Erika Andrea Levei, Oana Cadar
Summary: The structural, morphological and magnetic properties of MFe2O4 (M = Co, Ni, Zn, Cu, Mn) type ferrites were studied. The results showed that different phases of ferrite nanoparticles can be obtained by heat treatment at different temperatures.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Inorganic & Nuclear
Olga Dlugosz, Wiktoria Matyjasik, Julia Matysik, Krzysztof Szostak, Pawel Sliwa, Marcin Banach
Summary: This article presents a method for synthesizing a Fe3O4 nanocatalyst modified with Mn(II), Cu(II) and Zn(II) ions, and immobilized with catalase. The sorption process of metal ions on Fe3O4 is described using four equilibrium models, including Langmuir and Freundlich models. The proposed models accurately describe both single- and multi-component sorption. The kinetics of the sorption process and the effectiveness of the material in decomposing hydrogen peroxide were also evaluated.
JOURNAL OF CLUSTER SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Jonathan Castillo, Norman Toro, Pia Hernandez, Patricio Navarro, Cristian Vargas, Edelmira Galvez, Rossana Sepulveda
Summary: The study demonstrates the feasibility of using the ionic liquid R4NCy as an extractant to efficiently remove metal impurities such as Fe(III) and Zn(II) in copper solutions, while showing good results for Cu(II) and Mn(II).
Article
Materials Science, Multidisciplinary
Chokkakula L. P. Pavithra, Reddy Kunda Siri Kiran Janardhana, Kolan Madhav Reddy, Chandrasekhar Murapaka, Xiaodong Wang, Suhash Ranjan Dey
Summary: This study achieved the synthesis of one-dimensional high-entropy alloy nanowires through an electrochemical method, demonstrating a unique nanostructure and uniform chemical composition, which opens up new possibilities for the application of high-entropy alloys at lower dimensions.
MATERIALS RESEARCH LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Natalia Reis, Arron C. Deacy, Gloria Rosetto, Christopher B. Durr, Charlotte K. Williams
Summary: This study systematically investigates a series of heterodinuclear Mg(II)M(II) complexes to identify the most effective metal combinations for the catalysed ring opening copolymerizations of carbon dioxide/epoxide and anhydride/epoxide. Mg(II)Co(II) and Mg(II)Fe(II) are found to be the fastest catalysts with high selectivity and control. Additionally, the transition metal heterodinuclear complexes exhibit synergic rate enhancements compared to the homodinuclear Mg(II)Mg(II) complex.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Bo Yuan, Gaojie Li, Mingxing Guo, Linzhong Zhuang
Summary: The synergistic effect of Ni micro-alloying and thermomechanical processing on the phase distribution, formability, and bendability of Al-Mg-Si-Cu-Zn-Fe-Mn alloys were systematically studied in this paper. It was found that the addition of Ni improved the distribution of Fe-rich phases and enhanced the formability and bendability of the alloy. Furthermore, the synergy between Ni micro-alloying and thermomechanical processing significantly improved the distribution of multi-scale Fe-rich phases, leading to great improvements in microstructure, texture, formability, and bendability of the alloy.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Thermodynamics
Lidia Zapala, Malgorzata Kosinska-Pezda, Lukasz Byczynski, Wojciech Zapala, Urszula Maciolek, Elzbieta Woznicka, Ewa Ciszkowicz, Katarzyna Lecka-Szlachta
Summary: New complexes of Mn(II), Fe(III), Co(II), Ni(II), Cu(II) and Zn(II) ions with niflumic acid (Hnif) were synthesized using a green method and their physico-chemical properties, thermoanalytical behavior and antibacterial activity were investigated. The compounds were found to undergo multi-stage thermal decomposition, with the dehydration process occurring in two steps. The complex with Zn(II) ions displayed the most effective antibacterial activity against E. coli and P. aeruginosa.
THERMOCHIMICA ACTA
(2021)
Article
Materials Science, Multidisciplinary
Takeshi Nagase, Akihiro Shibata, Mitsuaki Matsumuro, Mamoru Takemura, Satoshi Semboshi
Summary: Medium-entropy brass ingots of CuxZnMnNi (x = 1, 2) were successfully fabricated using metallic mold-casting process without the need for a vacuum chamber. Different phase compositions were identified through XRD analysis in the ingots of varying compositions, showing superior deformability and high 0.2% proof stress during compression tests conducted at room temperature.
MATERIALS TRANSACTIONS
(2021)
Article
Chemistry, Physical
Zarife Sibel Sahin, Mehmet Demir, Tugrul Yildirim, Omer Yurdakul, Dursun Ali Kose
Summary: Four novel metal organic framework (MOF) structures containing acesulfame and 1,10-phenanthroline ligands of Co2+, Ni2+, Cu2+ and Zn2+ metal cations were synthesized and characterized. Crystal structure analysis of three compounds was performed and proposed for complex 4. The highest hydrogen gas adsorption was found for the Ni complex among the synthesized MOF structures.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
E. A. Il'ina, K. V. Druzhinin, B. D. Antonov
Article
Electrochemistry
V. M. Kuimov, A. Sh. Khaliullina, A. A. Pankratov, B. D. Antonov, L. A. Dunyushkina
RUSSIAN JOURNAL OF ELECTROCHEMISTRY
(2019)
Article
Chemistry, Physical
E. A. Il'ina, D. Lyalin, B. D. Antonov, A. A. Pankratov, E. G. Vovkotrub
Article
Physics, Condensed Matter
A. N. Meshcherskikh, A. A. Kolchugin, B. D. Antonov, L. A. Dunyushkina
PHYSICS OF THE SOLID STATE
(2020)
Article
Materials Science, Multidisciplinary
A. Yu Volkov, B. D. Antonov, E. I. Patrakov, E. G. Volkova, D. A. Komkova, A. A. Kalonov, A. V. Glukhov
MATERIALS & DESIGN
(2020)
Article
Metallurgy & Metallurgical Engineering
A. Yu. Volkov, A. A. Kalonov, V. A. Zavalishin, A. V. Glukhov, D. A. Komkova, B. D. Antonov
PHYSICS OF METALS AND METALLOGRAPHY
(2020)
Article
Chemistry, Physical
O. S. Novikova, E. G. Volkova, A. V. Glukhov, O. V. Antonova, A. E. Kostina, B. D. Antonov, A. Yu. Volkov
JOURNAL OF ALLOYS AND COMPOUNDS
(2020)
Article
Chemistry, Physical
S. V. Pershina, B. D. Antonov, A. S. Farlenkov, E. G. Vovkotrub
JOURNAL OF ALLOYS AND COMPOUNDS
(2020)
Article
Materials Science, Ceramics
N. S. Saetova, A. A. Raskovalov, B. D. Antonov, T. A. Denisova, N. A. Zhuravlev
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2020)
Article
Chemistry, Inorganic & Nuclear
N. S. Saetova, A. A. Raskovalov, E. A. Il'ina, B. D. Antonov, K. V. Grzhegorzhevskii
Summary: Replacing boron oxide with vanadium oxide decreases the glass transition temperature and thermal stability of glasses without altering the structural groups forming the glass network. The increase in conductivity is primarily due to electron transfer.
RUSSIAN JOURNAL OF INORGANIC CHEMISTRY
(2021)
Article
Materials Science, Ceramics
Svetlana V. Pershina, Boris D. Antonov, Ivan I. Leonidov
Summary: The glasses synthesized by melt quenching method exhibit a tendency of devitrification with increased MoO3 content and higher glass transition temperatures. Raman spectroscopy shows the presence of different structural units in the glasses, and the electrical conductivity increases with the MoO3 content.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Chemistry, Applied
S. V. Pershina, B. D. Antonov, A. S. Farlenkov
Summary: A technique for synthesizing single-phase lithium titanate Li4Ti5O12 was developed using tetraethoxytitanium as a precursor and citric acid as a complexing agent. The study investigated the processes occurring during solution and solid-phase synthesis of Li4Ti5O12 using methods such as X-ray phase analysis, differential scanning calorimetry, and scanning electron microscopy. It was found that the phase formation of lithium titanate is accompanied by the formation of an intermediate phase Li2TiO3 enriched in lithium, with the phase composition of the products depending on the synthesis technique and temperature.
RUSSIAN JOURNAL OF APPLIED CHEMISTRY
(2021)
Article
Chemistry, Physical
E. A. Il'ina, B. D. Antonov, M. Vlasov
SOLID STATE IONICS
(2020)
Article
Physics, Applied
A. Glukhov, V. A. Kazantsev, B. D. Antonov, A. Yu Volkov
Article
Metallurgy & Metallurgical Engineering
V. A. Khokhlov, N. A. V'yugin, V. N. Dokutovich, I. D. Zakir'yanova, B. D. Antonov
RUSSIAN METALLURGY
(2020)
