Article
Chemistry, Inorganic & Nuclear
Vladimir V. Sereda, Dmitry A. Malyshkin, Ivan L. Ivanov, Dmitry S. Tsvetkov, Andrey Yu Zuev, Antoine Maignan
Summary: The study investigated the oxygen nonstoichiometry and oxidation enthalpy of double perovskites RBaCo2O6-delta, providing insights into their redox thermodynamics for oxygen storage and solar energy conversion applications.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Physical
Yongbin Hua, Jae Su Yu
Summary: Single Sm3+-activated double-perovskite A2BNbO6 (A = Ca, Sr, and Ba; B = Y and In) phosphors were prepared by adjusting the chemical compositions of A and B sites. The Ca2YNbO6:Sm3+ phosphors showed the strongest emission intensity, and a redshift in the photoluminescence emission spectrum was observed after regulating Ca to Sr and Ba compositions. Furthermore, all the obtained samples exhibited beneficial thermal stability (>62% at 423 K), with Ca2InNbO6:Sm3+ phosphors displaying the highest thermal stability (93.20% at 423 K). The luminescence characteristics of the phosphors were also systematically analyzed.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Ceramics
Yulong Bai, Xin Wu, Shifeng Zhao
Summary: This study demonstrates the modulation of inverse and conventional magnetocaloric effects in double perovskite Bi2NiMnO6-delta polycrystalline films by controlling artificial oxygen vacancies. The role of oxygen vacancy concentration in magnetocaloric effect is clarified through the charge transfer mechanism. The findings suggest a potential route for designing magnetocaloric materials by manipulating controlled oxygen vacancy defects.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Evgenii Sterkhov, Nikolay M. Chtchelkatchev, Elena Mostovshchikova, Roman E. Ryltsev, Sergey A. Uporov, Gheorghe L. Pascut, Andrey Fetisov, Svetlana G. Titova
Summary: PrBaMn2O6 with ordered alternate stacking of PrMnO3/BaMnO3 layers exhibits two magnetic phase transitions close to room temperature, making it a promising magnetocaloric and magnetoresistive material. The experimentally detected structural transition is attributed to the splitting of eg-doublet states due to the tendency towards orbital ordering at the metal-insulator phase transition.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Bridget A. Connor, Rebecca W. Smaha, Jiayi Li, Aryeh Gold-Parker, Alexander J. Heyer, Michael F. Toney, Young S. Lee, Hemamala I. Karunadasa
Summary: Introducing heterovalent cations can change the optoelectronic properties of halide perovskites, and utilizing the structural flexibility of two-dimensional perovskites allows for placing three distinct stoichiometric cations in octahedral sites. The new layered perovskite exhibits enhanced electronic conductivity due to intervalence charge transfer between mixed-valence Cu centers. This demonstrates the importance of increasing the compositional complexity of halide perovskites for improved properties such as enhanced visible light absorption.
Article
Chemistry, Physical
Prakash Ramakrishnan, Jae-won Lee, Seong-Ho Baek
Summary: Double perovskites oxides (DPOs)-based bifunctional catalysts have significant importance due to their low overpotential performance. In this study, a nickel-based DPO material (LFNO) was prepared using the sol-gel polymer method and controlled synthesis, exhibiting excellent catalytic performance and long-term stability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Gaoliang Fu, Weiwei Li, Jia-Ye Zhang, Mengsha Li, Changjian Li, Ning Li, Qian He, Shibo Xi, Dongchen Qi, Judith L. MacManus-Driscoll, Jun Cheng, Kelvin Hongliang Zhang
Summary: The study shows that the Fe4+ state is crucial for enhancing the OER activity of LaNiO3, while Fe3+ has little effect. Fe4+ states increase Ni/Fe 3d and O 2p hybridization, reducing the energy barrier for electron transfer.
Article
Chemistry, Physical
Romualdo S. Silva, Javier Gainza, Cledson dos Santos, Elias F. S. Rodrigues, Catherine Dejoie, Yves Huttel, Nevenko Biskup, Norbert M. Nemes, Nilson S. Ferreira, Antonio Alonso, Joao Elias F. S. Rodrigues, Jose Luis Martinez, Jose Antonio Alonso
Summary: In this study, the structural, magnetic, and magnetocaloric properties of GdSrCoFeO6 were investigated. The material showed a large magnetocaloric effect and exhibited ferro/ferrimagnetic ordering below a certain temperature. These results suggest that GdSrCoFeO6 could be a potential candidate for cryogenic applications.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Physical
Pratap Vishnoi, Ram Seshadri, Anthony K. Cheetham
Summary: This study explores the feasibility of forming double perovskite halides using the Goldschmidt tolerance factor and the radius ratio of trivalent metals. The rarity of double perovskite iodides is rationalized based on these descriptors. Using this model, it is predicted that there may be over 300 unknown double perovskite iodides with various organic and inorganic cations in the A site.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Materials Science, Multidisciplinary
Ziyu Yang, Jun-Yi Ge, Shuangchen Ruan, Hongzhi Cui, Yu-Jia Zeng
Summary: The study reveals that the distorted double-perovskite Gd2ZnTiO6 shows promising magnetocaloric properties as a potential refrigerant material for the liquefaction of helium, with significant magnetic entropy change and cooling power compared to traditional refrigerants.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Chemistry, Physical
Hai L. Feng, Chang-Jong Kang, Pascal Manuel, Fabio Orlandi, Yu Su, Jie Chen, Yoshihiro Tsujimoto, Joke Hadermann, Gabriel Kotliar, Kazunari Yamaura, Emma E. McCabe, Martha Greenblatt
Summary: Pb2NiOsO6 is a metallic and antiferromagnetic oxide that shows a single transition at low temperatures, with three-dimensional connectivity. Neutron powder diffraction and first-principles calculation studies indicate that both Ni and Os moments are ordered below the transition temperature, breaking inversion symmetry. This unusual loss of inversion symmetry in metallic systems makes the 3d-Sd double-perovskite oxides a new class of noncentrosymmetric antiferromagnetic metallic oxides.
CHEMISTRY OF MATERIALS
(2021)
Article
Chemistry, Physical
I. Ajin, R. Balamurugan, A. Chandra Bose
Summary: In this study, La2NiCrO6 (LNC) double perovskites were successfully synthesized as an efficient supercapacitor electrode material. In a three-electrode system, LNC@Ni-foam showed a specific capacity of 529 C g(-1) (147 mA h g(-1)) at a current density of 1 A g(-1). A device fabricated with LNC@Ni-foam as a positive electrode and activated carbon (AC) AC@Ni-foam as a negative electrode achieved a specific capacity of 227 C g(-1) (63 mA h g(-1)) at 1 A g(-1), and exhibited an energy density of 49.17 W h kg(-1) and a cycle stability of 97% after 10,000 cycles at a current density of 10 A g(-1).
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Weihao Zeng, Fang Liu, Jinlong Yang, Bingkai Zhang, Fei Cao, Weixi Tian, Juan Wang, Ruohan Yu, Fanjie Xia, Haoyang Peng, Jingjing Ma, Zhenbo Wang, Shichun Mu, Jinsong Wu
Summary: In this study, a robust double layer cathode-electrolyte interphase (CEI) is introduced onto the surface of Li1.2Ni0.2Mn0.6O2, which effectively blocks the phase transition and diffusion of TM-ions, and relieves the voltage decay and capacity fading. The modified DL-LLO exhibits a voltage drop of only 0.83 mV per cycle and a capacity retention of 82.5 % over 300 cycles at 1 C.
ENERGY STORAGE MATERIALS
(2023)
Article
Physics, Applied
Tsukasa Katayama, Kento Magara, Akira Chikamatsu, Tetsuya Hasegawa
Summary: The proton conductive properties of perovskite oxides have attracted attention for various applications. Two-dimensional proton conduction was theoretically predicted in the double-perovskite GdBaCo2O5.5 with a specific Gd/Ba order. The anisotropic proton conductivity was experimentally confirmed in GdBaCo2O5.5 epitaxial films, showing slower conductivity along the Gd/Ba order due to the hindrance from BaO planes with large Ba2+ ions.
APPLIED PHYSICS LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Masaki Hada, Satoshi Ohmura, Tadahiko Ishikawa, Masaki Saigo, Naoya Keio, Wataru Yajima, Tatsuya Suzuki, Daisuke Urushihara, Kou Takubo, Yusuke Masaki, Makoto Kuwahara, Kenji Tsuruta, Yasuhiko Hayashi, Jiro Matsuo, Takayoshi Yokoya, Ken Onda, Fuyuki Shimojo, Muneaki Hase, Sumio Ishihara, Toru Asaka, Nobuyuki Abe, Taka-hisa Arima, Shin-ya Koshihara, Yoichi Okimoto
Summary: The study utilized ultrafast time-resolved electron diffraction to observe the large displacement of oxide ions in a solid material under near-ultraviolet photoexcitation at room temperature, revealing the mechanism of photoinduced transport of oxide ions.
APPLIED MATERIALS TODAY
(2021)
Article
Thermodynamics
A. L. Sednev-Lugovets, D. S. Tsvetkov, V. V. Sereda, R. E. Yagovitin, A. Yu Zuev, A. Maignan
Summary: The defect structure analysis of the oxygen deficient YBaCo2O6-delta double perovskite cobaltite is in agreement with the model proposed for other double perovskite cobaltites. High-temperature drop calorimetry was used to measure enthalpy increments of samples with different initial oxygen contents, leading to the determination of thermodynamic properties such as standard enthalpy of reduction. The results for YBaCo2O5.0 show a significantly less endothermic behavior compared to other double perovskite cobaltites.
THERMOCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Dmitry S. Tsvetkov, Roman E. Yagovitin, Vladimir V. Sereda, Dmitry A. Malyshkin, Ivan L. Ivanov, Andrey Yu Zuev, Antoine Maignan
Summary: The oxygen content and defect reaction thermodynamics of the double perovskite oxide NdBaCo2O6-δ were successfully studied through a combination of experimental measurements and theoretical calculations. The relationship between oxygen content and modes of oxygen exchange was observed, showing good agreement between experimental and calculated values, providing independent verification of the defect structure model.
SOLID STATE IONICS
(2021)
Article
Thermodynamics
Anton L. Sednev-Lugovets, Vladimir V. Sereda, Dmitry A. Malyshkin, Dmitry S. Tsvetkov, Ivan L. Ivanov, Andrey Yu. Zuev, Antoine Maignan
Summary: The study utilized drop calorimetry and differential scanning calorimetry to investigate the enthalpy increments of PrBaCo2O6-delta double perovskite at various temperatures, yielding valuable analytical expressions and findings for the equilibrium oxygen partial pressure and partial molar enthalpy of oxygen. These results can be used to calculate thermodynamic properties for PrBaCo2O6-delta with different oxygen content.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2021)
Article
Electrochemistry
Dmitry A. Malyshkin, Vladimir V. Sereda, Anton L. Sednev-Lugovets, Ivan L. Ivanov, Dmitry S. Tsvetkov, Andrey Yu Zuev
Summary: The defect structure model of La0.5Ba0.5CoO3-delta was validated using a combination of coulometric and thermogravimetric data, providing insights into the thermodynamic properties and chemical stability of the oxide. Additionally, calculations of partial molar enthalpy of oxygen and other thermodynamic parameters were conducted based on the model.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Review
Chemistry, Physical
Dmitry S. Tsvetkov, Vladimir V. Sereda, Dmitry A. Malyshkin, Ivan L. Ivanov, Andrey Yu. Zuev
Summary: Chemical expansion, the strong coupling between chemical composition and crystal lattice dimensions, significantly affects the performance of oxide materials in energy conversion and storage devices. This phenomenon is particularly crucial in applications like oxygen-permeating membranes or solid oxide fuel cells (SOFCs), which experience in situ variations in chemical composition and large volume changes. Chemical strain provides insights into local electronic and defect structure and is correlated with diffusion phenomena in high-temperature electrochemical devices.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Thermodynamics
D. S. Tsvetkov, M. O. Mazurin, V. V. Sereda, I. L. Ivanov, D. A. Malyshkin, A. Yu Zuev
Summary: By critically evaluating and comparing the results of thermochemical study on the formation thermodynamics of CsPbCl3, the discrepancy in the reported standard formation enthalpy values was identified and corrected using newly obtained solution calorimetric data, resulting in a consistent set of thermodynamic functions for CsPbCl3.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Thermodynamics
M. O. Mazurin, V. V. Sereda, D. S. Tsvetkov, V. D. Ershov, I. L. Ivanov, D. A. Malyshkin, A. Yu. Zuev
Summary: Three different tetrachlorocuprates containing organic ammonium cations were synthesized, and their thermal properties were investigated. The decomposition temperature of A2CuCl4 slightly increased with the length of the aliphatic chain in the cation. The formation enthalpies of these compounds were determined by calorimetry, and the relationship between the layer shift parameter (S) and the reaction enthalpy was analyzed.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2023)
Article
Biochemistry & Molecular Biology
Ivan L. Ivanov, Petr O. Zakiryanov, Vladimir V. Sereda, Maxim O. Mazurin, Dmitry A. Malyshkin, Andrey Yu. Zuev, Dmitry S. Tsvetkov
Summary: This study provides a detailed investigation on the influence of iron doping on defect chemistry, oxygen nonstoichiometry, and oxygen transport in mixed conducting cobaltites. The results demonstrate that iron doping can optimize the performance of oxygen-conducting materials.
Article
Energy & Fuels
Nadezhda S. S. Tsvetkova, Dmitry A. A. Malyshkin, Ivan L. L. Ivanov, Dmitry S. S. Tsvetkov, Andrey Yu. Zuev
Summary: Chemical compatibility and cation interdiffusion between RBaCo2O6-delta (R = Gd, Pr) and BaZr0.8Y0.2O3-delta were studied. The study found that chemical interaction occurs at 1100 degrees C, leading to partial dissolution of RBaCo2O6-delta (R = Gd, Pr) in BaZr0.8Y0.2O3-delta. Cation interdiffusion, with cobalt being the most mobile, was observed along the cross sections of the diffusion couples. Addition of NiO as a sintering aid promoted cation diffusion, increasing the diffusion depth of Co. The implications of cation interdiffusion on proton-conducting solid oxide fuel cells were discussed based on the results obtained.
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)