Article
Materials Science, Ceramics
Rajasree Das, Ramanathan Mahendiran
Summary: This study investigates the impact of magnetic field on electrical and thermal properties of La1-xNaxMnO3 series. It was found that at the onset of ferromagnetic spin ordering, resistivity and thermopower exhibit peaks while thermal conductivity shows a sudden increase. External magnetic field influences thermal properties and thermal expansion mostly around the Curie temperature, while its effect on resistivity extends to as low as 10 K.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Mohamed Afqir, Mohamed Elaatmani, Abdelouahad Zegzouti, Nabiha Tahiri, Mohamed Daoud
Summary: The bismuth layer ferroelectric materials have been studied for their potential applications in high-temperature piezoelectricity and non-volatile ferroelectric memories. Electrical properties of strontium bismuth niobate ceramics were investigated. The variable range hopping theory was found to be suitable for describing the behavior of the ceramic compound, suggesting the presence of oxygen vacancies acting as polarons. The charge carriers' short-distance mobility caused by the non-Debye process dominantly contributed to the relaxation mechanism.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Chemistry, Inorganic & Nuclear
Jiachen Li, Li Yang, Jungu Xu, Alberto J. Fernandez-Carrion, Xiaojun Kuang
Summary: This study thoroughly analyzed the crystal structure, electrical conduction properties, and ionic migration mechanism of the La1-xSr2+x(GaO4)O1-0.5x system, laying the foundation for a better understanding of the mixed p electronic/oxide ion-conducting behavior of the system.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Physical
Wei Mei, Haojie Wang, Wenlu Li, Juan Zhou, Xiufu Sun, Hanwen Zhao, Shimin Wang
Summary: The study presents a stable non-cobalt and non-strontium La1-xNi0.6Fe0.4O3 perovskite cathode with improved oxygen reduction reaction activity for intermediate temperature solid oxide fuel cells.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Multidisciplinary
Antigoni Evdou, Theofilos Georgitsis, Charitini Matsouka, Eleni Pachatouridou, Eleni Iliopoulou, Vassilios Zaspalis
Summary: In this study, La1-xMxMnO3 materials were synthesized and analyzed to investigate the relationship between their defect chemistry and their behavior in chemical looping processes. It was found that the fuel could react with different types of oxygen generated by different mechanisms within the materials, affecting the CO2/CO selectivity.
Article
Chemistry, Multidisciplinary
Daseob Yoon, Yujeong Lee, Gi-Yeop Kim, Youngho Kang, Si-Young Choi, Junwoo Son
Summary: A simple strategy to increase electrical conductivity in perovskite oxide semiconductors has been proposed through non-stoichiometry-driven metal exsolution, leading to enhanced carrier concentration in reduced films.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Analytical
K. Shingange, G. H. Mhlongo, H. C. Swart
Summary: In this study, a nanofiber network of La1_ xCexCoO3 was prepared and the X-ray diffraction analysis revealed the appearance of CeO2 with increasing Ce-substitution. The gas sensing measurements showed that the combination of nanofiber morphology and the catalytic effect of Ce resulted in enhanced ethanol sensing performance, especially for the La0.8Ce0.2CoO3 sample. The particle-interconnected nanofiber morphology allowed for greater resistance changes and the Ce-substitution increased the surface oxygen defects, promoting a more advanced gas and surface interaction. This research demonstrates the potential ethanol sensing capabilities induced by Ce-partial substitution on the La-site.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Materials Science, Ceramics
Diana I. Pchelina, Vera D. Sedykh, Nataliya I. Chistyakova, Vyacheslav S. Rusakov, Yulia A. Alekhina, Alexey N. Tselebrovskiy, Bernard Fraisse, Lorenzo Stievano, Moulay Tahar Sougrati
Summary: Sr-doped (00.2) ceramic samples of lanthanum manganite oxides were synthesized and their structural, magnetic, and electronic responses were investigated. The doping induced the formation of a mixture of orthorhombic phases in the annealed samples. The study revealed the presence of nanosized magnetic clusters with fluctuating magnetic moments and the influence of matrix-clusters interactions on the relaxation behavior. Additionally, the annealing time affected the production of materials with specific properties, making it useful in technological processes.
CERAMICS INTERNATIONAL
(2023)
Article
Thermodynamics
Imen Gouti, Hejer Litaiem, Santiago Garcia-Granda
Summary: Thermal analysis confirmed the phase transition at T = 320 K in the Cs2SeO4·H6TeO6 (CsSeTe) material, with structural study showing a transition at T = 360 K and conductivity evolution indicating an ionic-protonic conduction phase transition at T = 490 K.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Materials Science, Multidisciplinary
M. Benamara, J. Massoudi, H. Dahman, A. Ly, E. Dhahri, M. Debliquy, L. El Mir, D. Lahem
Summary: Zinc oxide nanopowder was synthesized by auto-combustion and oxygen vacancies were induced by thermal activation. The structural, morphological, and optical properties of the samples were characterized by XRD, Raman spectroscopy, XPS, and SEM. The results showed that the introduction of oxygen vacancies enhanced the absorption and decreased the conductivity of the material. Gas sensors based on the nanoparticles exhibited excellent sensing response to NO2.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Materials Science, Ceramics
Lav Kush, Sanjay Srivastava
Summary: This study demonstrates the synthesis of a new type of Sr2-xPrxFeCrO6 oxide materials and analyzes their electrical properties at high temperature. Structural investigations show changes in crystal size with different doping concentrations, and XPS analysis confirms the presence of defect sites in the materials. The conductivity analysis indicates a decrease in conductivity and a semiconductor-to-metal-to-semiconductor transition after doping. The thermal conductivity shows an initial increase followed by a decrease within a certain temperature range.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Waleed E. Mahmoud
Summary: The impact of Er atoms on the properties of MoS2 nanosheets was investigated, showing that the inclusion of Er results in a decrease in layer number and widening of lateral dimensions, along with an increase in optical bandgap and exciton transition intensity. A Mo1xErxS2/p-Si heterojunction diode demonstrated high sensitivity towards NO2 gas, exhibiting good stability and reproducibility under solar light illumination.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Taymaz Tabari, Marcin Kobielusz, Agnieszka Jarosz-Duda, Dheerendra Singh, Andrzej Kotarba, Artur Blachowski, Jiaguo Yu, Wojciech Macyk
Summary: Understanding the charge transfer mechanism in the straddle heterojunction architecture is crucial for designing active materials. The synthesis and thorough study of BiVO4, La1-xSrxFeO3-delta perovskites, and BiVO4@La1-xSrxFeO3-delta straddle heterojunction architectures addressed this issue. The insertion of Sr2+ ions into A-sites increased the Fe4+ ions at B-sites, strengthening the Fe-O bond and improving electrocatalytic activity. The increased Fermi levels reduced band bending and enhanced the drift direction of photoinduced charges, leading to significantly higher photocurrent in the heterojunction architecture.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Ceramics
K. S. Tolstov, N. E. Volkova, A. Yu Suntsov, I. L. Ivanov, L. Ya Gavrilova, V. A. Cherepanov
Summary: Anion-deficient perovskite-like Ba3SmFe2O7.5 was synthesized via a glycerol-nitrate method. High-temperature X-ray diffraction revealed a crystal structure transition temperature range of 800 and 840 ? and was confirmed by dilatometric analysis. The thermal expansion coefficient of Ba3SmFe2O7.5 was determined to be approximately 12.8 x 10(-6) K-1 between 25 ? and 800 ?. Magnetic experiments showed the high phase purity of the oxide and the presence of Fe3+ ions in high and intermediate spin states with a ratio of 75% and 25%, respectively.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Wilmer Bucheli, Ricardo Jimenez, Jesu's Sanz, Maria Eugenia Sotomayor, Alejandro Varez
Summary: The Li1/2-2xSrxLa1/2TiO3 series was studied using X-ray diffraction, nuclear magnetic resonance and impedance spectroscopy techniques. The substitution of Sr2+ for two Li+ in Li1/2La1/2TiO3 generates cation vacancies that give a two-dimensional character to Li mobility. The results show that effective vacancies play a significant role in conductivity, and the vacancy percolation model is more suitable for explaining Li conductivity than the conventional hopping probability model.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Electrochemistry
N. A. Tarasova, I. E. Animitsa, K. G. Belova
RUSSIAN JOURNAL OF ELECTROCHEMISTRY
(2017)
Article
Electrochemistry
K. G. Belova, A. V. Obrubova, I. E. Animitsa
RUSSIAN JOURNAL OF ELECTROCHEMISTRY
(2017)
Article
Chemistry, Physical
A. V. Egorova, K. G. Belova, I. E. Animitsa
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A
(2020)
Article
Chemistry, Physical
A. Egorova, Ye A. Morkhova, A. A. Kabanov, K. G. Belova, I. E. Animitsa, V. A. Blatov, A. A. Pimenov, D. Korona
Summary: The new oxygen-deficient orthorhombic perovskite LaIn0.5Zn0.5O2.75 exhibited good oxide-ion conductivity within a certain temperature range, with an increasing proportion of hole conductivity as the temperature increased.
SOLID STATE IONICS
(2021)
Article
Chemistry, Physical
Nataliia Tarasova, Anzhelika Galisheva, Irina Animitsa, Ksenia Belova
Summary: The study focused on a novel complex oxide Ba1.1La0.9In0.5Y0.5O3.95 with layered perovskite structure, showing that co-doping strategy significantly increases protonic conductivity values.
Article
Chemistry, Multidisciplinary
Ksenia Belova, Anastasia Egorova, Svetlana Pachina, Irina Animitsa
Summary: This paper demonstrates the possibility of creating oxygen deficiency in perovskites by introducing cations with different charges into the crystal structure. The novel oxygen-deficient perovskite shows reversible water uptake and the total conductivity is affected by the free lattice volume.
APPLIED SCIENCES-BASEL
(2022)
Article
Chemistry, Physical
Nataliia Tarasova, Anzhelika Galisheva, Irina Animitsa, Ksenia Belova, Anastasia Egorova, Ekaterina Abakumova, Dmitry Medvedev
Summary: This study focuses on the design of new oxide compounds for solid oxide fuel cells that can conduct oxygen or protons. A novel material, BaNd2In2O7 perovskite, was investigated as a protonic conductor for the first time. The study comprehensively examined its local structure, water uptake, and ionic conductivity. The analysis revealed that BaNd2In2O7 is nearly a pure proton conductor below 350 degrees C, opening up new possibilities for the design of protonic conductors with double-layered perovskite structure.
Article
Biochemistry & Molecular Biology
Nataliia Tarasova, Anzhelika Bedarkova, Irina Animitsa, Ekaterina Abakumova, Ksenia Belova, Hala Kreimesh
Summary: This paper demonstrates the possibility of proton conductivity in acceptor-doped two-layer compositions based on BaLa2In2O7 for the first time. Doping leads to a significant increase in conductivity values, with BaLa1.9Sr0.1In2O6.95 showing the highest protonic conductivity value.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Inorganic & Nuclear
Kirill Grzhegorzhevskii, Margarita Tonkushina, Pavel Gushchin, Ilya Gagarin, Alexander Ermoshin, Kseniya Belova, Anna Prokofyeva, Alexander Ostroushko, Alexander Novikov
Summary: The association process between tetracycline (TC) and Keplerate-type nanocluster polyoxometalate (POM) {Mo72Fe30} in aqueous solution was studied. The supramolecular ensemble {Mo72Fe30}@TC12.5 was produced and its composition and structure were characterized. The binding sites of TC with the Keplerate {Mo72Fe30} surface were identified. Additionally, the antibacterial activity of the complex {Mo72Fe30}@TC12.5 was examined, and the inhibition of TC's antibacterial activity was observed due to the coordination of TC to Fe-III centers.
Article
Electrochemistry
A. V. Egorova, K. G. Belova, N. V. Lakiza, I. E. Animitsa
Summary: This paper studies the conduction mechanism in perovskite phases with composition La2Me+3ZnO5.5 (Me+3 = Al3+, Sc3+, In3+). The complex oxides exhibit a mixed type of conduction in air, with increasing temperature leading to an increase in electronic contribution. In a wet atmosphere, Sc3+ and In3+ containing samples are capable of incorporating water and forming proton defects, while La2AlZnO5.5 sample shows no significant proton transport.
RUSSIAN JOURNAL OF ELECTROCHEMISTRY
(2023)
Article
Chemistry, Physical
Anastasia V. Egorova, Ksenia G. Belova, Irina E. Animitsa
Summary: The LaIn1-xZnxO3-1/2x samples were synthesized for the first time via solid-state reaction method. The effect of Zn2+ doping on the structure, water uptake and electrical properties of LaInO3 was investigated. The results show that Zn2+ is a good alternative to alkaline earth metals and improves the conductivity of the ceramics. The phase exhibits oxygen-ionic transport at temperatures below 500°C and protonic transport at temperatures below 600°C.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Inorganic & Nuclear
Nataliia Tarasova, Anzhelika Bedarkova, Irina Animitsa, Ksenia Belova, Ekaterina Abakumova, Polina Cheremisina, Dmitry Medvedev
Summary: Inorganic materials with layered perovskite structures exhibit various physical and chemical properties. This study focuses on the oxygen ion and proton transport in alkali-earth doped layered perovskites based on BaLa2In2O7. Doping significantly enhances the conductivity values and the most proton-conductive samples exhibit high conductivity under wet air conditions.
Article
Chemistry, Inorganic & Nuclear
Olga A. Lipina, Ludmila L. Surat, Alexander Yu Chufarov, Alexander P. Tyutyunnik, Andrey N. Enyashin, Yana Baklanova, Anastasia Chvanova, Leonid Yu Mironov, Ksenia G. Belova, Vladimir G. Zubkov
Summary: A new series of Ba2RE2Ge4O13 germanates and Ba2Gd2-xEuxGe4O13 solid solutions have been synthesized and characterized, showing potential applications in UV-excited phosphor-converted LEDs.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Inorganic & Nuclear
Kirill Grzhegorzhevskii, Margarita O. Tonkushina, Andrei Fokin, Ksenia G. Belova, Alexander A. Ostroushko
DALTON TRANSACTIONS
(2019)
Article
Chemistry, Inorganic & Nuclear
Caleb J. Bennett, Helen E. A. Brand, Alexander K. L. Yuen, Maria K. Nicholas, Brendan J. Kennedy
Summary: The temperature dependence of the crystal structure of Potassium Hexaiodoplatinate(IV) between 80 and 500 K is studied. Different crystal structures are observed at different temperatures, including monoclinic, tetragonal, and cubic structures. Accurate determination of the structures of K2PtI6 is important for further theoretical and practical research.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Zhuo Zeng, Jiangfu Zheng, Xiaoming Li, Changzheng Fan, Rongying Zeng, Wenqing Tang
Summary: An efficient method for phosphate removal from wastewater is urgently needed due to the environmental issue caused by excessive phosphorus. In this study, calcium aluminum layered double hydroxides (CaAl-LDHs) and six amino acid intercalated calcium aluminum layered double hydroxides (CaAl-amino acid-LDHs) were prepared and compared for their phosphate adsorption performance. L-Aspartic acid intercalated calcium aluminum layered double hydroxides (CaAl-Asp-LDHs) exhibited the highest phosphate adsorption capacity and faster removal rate compared to CaAl-LDHs. The phosphate adsorption mechanism on CaAl-Asp-LDHs involved electrostatic attraction, hydrogen bonds, complexation, and ion exchange. This environmentally friendly material shows promising potential for efficient phosphate removal from aquatic environments.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Rouzbeh Aghaei Hakkak, Thomas Schleid
Summary: The novel guanidinium hydro-closo-borates with [BnHn]2- (n = 10 and 12) anions were successfully synthesized via direct reaction. The crystal structures exhibit hydrogen bonding interactions and have the potential to facilitate H2 generation.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Liqiang Ma, Pengpeng Wei, Jingfang Li, Liye Liang, Guangming Li
Summary: A novel catalyst, H4PVMo2W9O40@rht-MOF-1, was developed using a one-pot hydrothermal method. It exhibited high efficiency and reusability in esterification reactions.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Liudmila A. Gorelova, Valentiva A. Yukhno, Maria G. Krzhizhanovskaya, Oleg S. Vereshchagin
Summary: Two new Ga-Ge disordered feldspar-related compounds were successfully synthesized using melt crystallization methods. Their stability and thermal expansion properties were studied under high-temperature conditions. The results showed that both compounds are stable within the studied temperature range and exhibit anisotropic thermal expansion.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Seifeddine Bdey, Nesrine Boussadoune, Francois Allard, Jacques Huot, Gabriel Antonius, Noura Fakhar Bourguiba, Pedro Nunez
Summary: The structure of a novel arsenate compound Na3Al3(AsO4)4 has been determined using X-ray diffraction. The crystal exhibits a monoclinic space group with suitable pathways for Na+ ion migration. The accuracy of the structural model was confirmed using various validation tools and density functional theory calculations.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Amit Kumar Atri, Ujwal Manhas, Sumit Singh, Irfan Qadir, Shikha Sharma, Preteek Sharma, Devinder Singh
Summary: This study synthesizes new oxygen deficient triple layered Ruddlesden-Popper (RP) phases via sol-gel method and investigates the effects of Cr3+ doping on their structural, optical, magnetic, and photocatalytic properties. The experimental results demonstrate that Cr3+ doping alters the interactions and leads to excellent photocatalytic performance in some phases.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Dat Le Thanh, Amandine Guiet, Emmanuelle Suard, Romain Berthelot
Summary: In this study, FeNb11O29 powder samples were prepared using a microwave-assisted solid-state synthesis method for the first time. The samples obtained rapidly from submicrometric oxide precursors showed enhanced cycling performance, possibly due to the easier ionic diffusion occurring in the smaller particles.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Raimund Ziegler, Felix R. S. Purtscher, Thomas S. Hofer, Gunter Heymann, Hubert Huppertz
Summary: We have successfully synthesized a new tellurium borate crystal under high-pressure and high-temperature conditions. The crystal structure and theoretical calculations have been thoroughly discussed.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Subhendu Jana, Eric A. Gabilondo, Paul A. Maggard
Summary: This study reports the synthesis and characterization of two previously unknown multinary selenides, Ba8Hf2Se11(Se-2) and Ba9Hf3Se14(Se-2), which display unique structures and optoelectronic properties competitive with existing perovskite-type chalcogenides.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Fei Ruan, Chonggui Lei, Fenglong Zhang, Jinxiao Bao, Fen Zhou, Min Xie, Pengfei Xu, Jianquan Gao
Summary: Studying the diffusion properties of hydrogen is important for designing new proton conductors. In the past, the chemical diffusion coefficient of hydrogen in proton conductors was usually obtained through a manual calculation method, resulting in difficulty in controlling the calculation accuracy. To address this issue, a mathematical algorithm and C language computer program were developed to calculate the chemical diffusion coefficient based on Fick's second law and Romberg numerical integral. The algorithm showed high precision and powerful computing function, and has the potential to replace the manual calculation method in calculating the chemical diffusion coefficient for hydrogen in proton conductors.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Deepika Shanubhogue, Suraj Mangavati, Ashok Rao, Ru-Ting Tsao, Yung-Kang Kuo
Summary: In this study, the effect of Y doping at the Sn-site on the structural, electrical, and low-temperature thermoelectric properties of the Cu2SnSe3 system is investigated. Y-doped compounds Cu2Sn1-xYxSe3 show reduced electrical resistivity, enhanced power factor, and decreased thermal conductivity, resulting in higher ZT values.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Wei Hong, Min Qing, Xun He, Lei Wang, Yu Pu, Qiyu Li, Zhimin He, Qin Dong, Rong Li, Xinglong Gou
Summary: This study developed a simple method to prepare SnS2 nanosheets and assembled them with MXene to form SnS2/MXene. The composite material exhibited abundant active sites, superior electron/ion transfer kinetics, and a unique 2D interlayer structure, resulting in high specific capacity, outstanding rate capability, and excellent cycling stability, with potential applications in LIBs.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Heng-Yu Ruan, Xue-Qian Wu, Tian-Yu Zhang, Yi Yuan, Le Wang, Ya-Pan Wu, Qing-Wen Han, Ruan Chi, Dong-Sheng Li
Summary: Two isostructural metalorganic frameworks (MOFs), CTGU-36-Co and CTGU-36-Ni, were synthesized, and CTGU-36-Ni demonstrated high activity as a molecular electrocatalyst for the methanol oxidation reaction.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Rachid Fakhreddine, Ali Ouasri, Abderrahim Aatiq
Summary: This paper reports the synthesis, structure, and spectroscopic studies of three novel metal orthophosphate salts. The structures of these compounds were refined using X-ray powder diffraction data. The infrared and Raman analysis revealed their symmetries and the UV-visible investigation determined their optical properties.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
