Article
Chemistry, Inorganic & Nuclear
Preeti Pokhriyal, Anil Kumar, M. N. Singh, Pankaj Sagdeo, A. K. Sinha, Archna Sagdeo
Summary: Delafossites (ABO2) are of great interest due to their interesting structural and magnetic transitions. The distortions in octahedra of delafossites can influence the structural and physical properties of materials. This study found that the distortion of CrO6 octahedra in CuCrO2 decreases with increasing temperature.
SOLID STATE SCIENCES
(2021)
Article
Spectroscopy
P. K. Jamshina Sanam, Midhun Shah, P. P. Pradyumnan
Summary: CuCrO2 can be tuned by Ni2+ doping to achieve emission band tuning, leading to significant changes in its optical properties.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Chemistry, Physical
Pei Wang, Sheng-Cai Zhu, Yongtao Zou, Haiyan Chen, Ying Liu, Weiwei Li, Jian Chen, Jinlong Zhu, Liusuo Wu, Shanmin Wang, Wenge Yang, Yuming Xiao, Paul Chow, Liping Wang, Yusheng Zhao
Summary: Cooperative Jahn-Teller (JT) distortion, combined with electromagnetic lattice coupling, plays a crucial role in numerous phenomena in materials science. While JT distortion is common in high-spin 3d4 and 3d9 configurations in octahedral complexes, large distortions resulting from the degeneracy lifting of t2g orbitals have rarely been observed. In this study, we report the discovery of pressure-induced cooperative JT effect in MnTe, which is accompanied by a significant volume collapse and a collapse of magnetic moment. First-principles calculations suggest that the lifting of t2g orbital degeneracy in Mn2+(d5) due to weakened p-d hybridization and enhanced d state localization induces the cooperative JT effect and triggers electromagnetic lattice coupling. These findings present a new mechanism for cooperative JT distortion via pressure-induced ligand distortion in antiferromagnetic materials.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Shuo Feng, Rajesh Kumar Singh, Yucheng Fu, Zhuo Li, Yulong Wang, Jie Bao, Zhijie Xu, Guosheng Li, Cassidy Anderson, Lili Shi, Yuehe Lin, Peter G. Khalifah, Wei Wang, Jun Liu, Jie Xiao, Dongping Lu
Summary: In this study, a simple strategy was demonstrated for constructing low-tortuosity through-pores in both vertical and planar directions of electrodes by casting large particles into single-particle-layer electrodes. Through multi-scale characterizations and simulations, correlations between material/electrode structures, electrolyte permeability, polysulfide migration, and sulfur reactions were elucidated. The high-loading and dense sulfur cathode fabricated by this method delivers a high specific capacity at a very low electrolyte/sulfur ratio.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Sofie Holm-Janas, Sidse L. Lolk, Anders B. A. Andersen, Tatiana Guidi, David Voneshen, Ivica Zivkovic, Ulla Gro Nielsen, Kim Lefmann
Summary: In this study, the dynamics of the S = 3/2 kagome antiferromagnet KCr3(OD)6(SO4)2 were investigated using neutron spectroscopy. Diffuse spin wave excitations and a kagome zero mode were observed in the ordered phase. The exchange couplings were estimated using linear spin wave theory. Above the critical temperature, diffuse excitations from the classical spin liquid regime dominated.
Review
Physics, Condensed Matter
Koji Ohara, Yohei Onodera, Motohiko Murakami, Shinji Kohara
Summary: The lack of experimental data has hindered the understanding of the structure of disordered materials. However, advancements in hard X-ray technology have provided high-quality data, improving our understanding of order in disordered materials. Progress in instrumentation and data analysis techniques at SPring-8 over the past 20 years has further enhanced research on the topology in disordered materials.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2021)
Article
Chemistry, Multidisciplinary
Rajnikant Upadhyay, Manjari Shukla, Chandan Upadhyay
Summary: We conducted a detailed investigation on the structural and magnetic properties of the Jahn-Teller compound DyVO4, which is generally considered as an antiferromagnetic compound. Our study reveals the emergence of a cluster-glass like phase in DyVO4, as demonstrated by the static and dynamic magnetic measurements. We also analyzed the frequency dependence of the ac-susceptibility using different scaling laws, which further confirmed the presence of cluster-glass phase in DyVO4.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2023)
Article
Materials Science, Multidisciplinary
Tahir Murtaza, Raju Kalaivanan, G. Madeswaran, Khasimsaheb Bayikadi, Raman Sankar
Summary: In this study, single crystal growth, structural, and magnetic properties of Na2M2TeO6 (M = Co, Ni) and Na2Cu2TeO6 compounds were investigated. The self-flux method was used for single crystal growth, and X-ray diffraction was utilized to examine crystal structure and magnetic properties. The anisotropic behavior and magnetic phase transitions were observed in the honeycomb spin-lattice compounds, indicating distinct magnetic interactions within the crystal structure.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Nanoscience & Nanotechnology
Nazar Delegan, Samuel J. Whiteley, Tao Zhou, Sam L. Bayliss, Michael Titze, Edward Bielejec, Martin Holt, David D. Awschalom, F. Joseph Heremans
Summary: This paper highlights the advanced tools and techniques from the U.S. Department of Energy's Nanoscale Science Research Centers that address the impact of local crystallographic features on quantum spin defects. It demonstrates the deterministic creation and characterization of neutral divacancy centers in 4H silicon carbide using nano-implantation and nano-diffraction.
Article
Chemistry, Inorganic & Nuclear
Badr Baach, Moussa Ouakki, Soumya Ferraa, Hanane Barebita, Mohammed Cherkaoui, Abderrazak Nimour, Taoufik Guedira
Summary: New crystalline compounds based on an oxygen-deficient fluorite structure were synthesized and tested as corrosion inhibitors for mild steel in hydrochloric acid solution. The inhibitor efficiency was observed to increase with concentration, reaching a maximum of 93.7% for one compound at room temperature. The inhibitors exhibited excellent performance, although their effectiveness decreased at higher temperatures. Thermodynamic parameters were also calculated and discussed.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Y. H. Meng, S. Y. Zhang, W. H. Zhou, J. H. Yao, S. N. Liu, S. Lan, Y. Li
Summary: Structural relaxation and subsequent rejuvenation through thermal treatment can improve the plasticity and fracture toughness of metallic glasses. The recovery of loosely packed regions in the atomic structure during annealing contributes to the observed rejuvenation. Tailoring the mechanical properties of metallic glasses can be achieved by controlling the annealing and thermal treatment conditions.
Article
Materials Science, Ceramics
U. Hoppe, A. Schoeps, A. C. Hannon, A. Barz, D. Stachel
Summary: Antimony phosphate glasses with varying composition were analyzed using neutron and X-ray diffraction, revealing specific SbO3 and SbO4 environments, as well as Sb-O-Sb or Sb-O-P bridges. The structural characteristics of these glasses resemble that of antimony trioxide and diphosphorus pentoxide.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Article
Nanoscience & Nanotechnology
Ruixin Sheng, Zhinan An, Andew C. -P. Chuang, Xie Xie, Peter K. Liaw, Yang Tonga
Summary: The viscoelasticity-induced structural change in Zr55Cu30Ni5Al10 metallic glass and amorphous selenium was investigated using synchrotron X-ray diffraction. Two types of structural anisotropy, characterized by residual elastic strain or heterogeneous intensity of diffraction rings, were observed by analyzing the two-dimensional diffraction pattern. The origin of the structural anisotropy is attributed to topological rearrangement in the metallic glass and conformation rearrangement in the amorphous selenium. These findings provide a structural identity to the phenomenological structureless deformation defect widely observed in different amorphous materials.
SCRIPTA MATERIALIA
(2023)
Article
Materials Science, Ceramics
L. Shirley Auxilia, Hrudananda Jena, Sanjit Kumar Parida
Summary: The study demonstrates the solid solubility limit of Nd in CaFAp is <3 mol%, beyond which Ca-3(PO4)(2) phase separates out. However, a 20 wt% borosilicate glass bonded composite shows 12 mol% Nd solubility. The normalized leach rate of Nd from the matrix is below detection limit (<0.1 μg/mL), while the leach rate for Ca2+ and F-1 ions is on the order of 10(-4) g cm(-2) day(-1) and 10(-6) g cm(-2) day(-1) respectively in the Ca10-xNdx(PO4)(6)F-2 matrix with x=0-0.3.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Jaspreet Kaur, Paramvir Kaur, Isha Mudahar, K. Singh
Summary: The composition of glass with 40% SiO2, 40% B2O3, 10% V2O5, (10-x)% Fe2O3, and x% Sm2O3 (where x = 0, 2, 4, 6 mol%) was prepared using the melt-quench technique. Various experimental methods such as X-ray diffraction (XRD), Fourier transforms infrared (FTIR) spectroscopy, Raman spectroscopy, UV-visible spectroscopy, and vibrating sample magnetometer (VSM) were used to characterize the structural, optical, and magnetic properties of the as-prepared glasses. The addition of Sm2O3 increased the glass density nonlinearly, and the optical band gap was in the semiconducting range (2.2-2.6 eV). These glasses can potentially be used in hyperthermia treatment as thermoseeds.
CERAMICS INTERNATIONAL
(2023)
Article
Physics, Applied
Francoise Damay, Jonas Sottmann, Francois Fauth, Emmanuelle Suard, Antoine Maignan, Christine Martin
Summary: In this study, spin-driven multiferroicity was reported above 100K in Cu2CrBO5, with spontaneous polarization reaching 35 mu Cm-2 at 5K. The high transition temperature observed in Cu2CrBO5 is attributed to the strong Cu-O-Cu magnetic super-exchange interactions present in the material. This contribution provides insight into high temperature spin-driven multiferroics among low-dimensional cuprates.
APPLIED PHYSICS LETTERS
(2021)
Article
Chemistry, Physical
Antoine Maignan, Marcus Schmidt, Yurii Prots, Oleg Lebedev, Ramzy Daou, Chun-Fu Chang, Chang-Yang Kuo, Zhiwei Hu, Chien-Te Chen, Shih-Chang Weng, Simone G. Altendorf, Liu-Hao Tjeng, Yuri Grin
Summary: Synthetic crystals of ferberite FeWO4 have been grown and their properties were investigated, including magnetic, electrical and structural characteristics.
CHEMISTRY OF MATERIALS
(2022)
Article
Materials Science, Ceramics
Tatiana Aksenova, Nadezhda E. Volkova, Antoine Maignan, Vladimir A. Cherepanov
Summary: The phase equilibria in the 1/2Nd(2)O(3)-BaO-1/2Fe(2)O(3) system were studied, and the crystal structure and oxygen content of different intermediate oxides were determined. The substitution of neodymium by barium was found to decrease the oxygen content and influence the thermal properties.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Chemistry, Inorganic & Nuclear
Antoine Maignan, Jacqueline-Nadine Jiongo-Dongmo, Christine Martin, O. I. Lebedev, Francoise Damay, Xiao Wang, Chang-Yang Kuo, Chun-Fu Chang, Zhiwei Hu, Liu Hao Tjeng
Summary: In this study, the Fe4-xNixNb2O9 material was analyzed using various experimental methods. It was found that the structure of the material remains unchanged as nickel substitutes for iron, but there is a decrease in the unit cell volume. Fe3NiNb2O9 has a lower antiferromagnetic transition temperature than Fe4Nb2O9, and below this temperature, its magnetization and electric polarization show a stronger dependence on magnetic field.
SOLID STATE SCIENCES
(2022)
Article
Chemistry, Inorganic & Nuclear
Sylvie Hebert, Oleg Lebedev, Antoine Maignan
Summary: A series of CuCr1-xTi1+xS4 thiospinel ceramics were synthesized and characterized. The structural characterization confirmed the spinel cubic structure and a homogeneous cation distribution. Transport properties measurements showed a sign change of the majority charge carriers near a specific x value. The materials exhibited asymmetric thermoelectric properties and magnetoresistance depending on composition and temperature.
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
(2022)
Article
Chemistry, Inorganic & Nuclear
Antoine Maignan, Christine Martin
Summary: The structural, magnetic and magnetoelectric properties of a newly synthesized member, Co2Fe2Ta2O9, were studied. Despite having structural features intermediate between Co4Ta2O9 and Fe4Ta2O9, the compound exhibited a very different magnetoelectric behavior. A comparison between different compounds was proposed to reveal the influence of different M and M' pairs on the properties.
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
(2022)
Article
Materials Science, Multidisciplinary
Subarna Das, P. Singha, Ramzy Daou, Oleg Lebedev, Sylvie Hebert, Antoine Maignan, Aritra Banerjee
Summary: Te-impurity-incorporated Sb2Te3 composites were synthesized, and the doping of Te and suppression of Te vacancies resulted in a lower carrier concentration and an increased Seebeck coefficient. Despite the increase in electrical resistivity due to Te impurities, the charge carrier mobility remained stable due to enhanced lattice texturing. The addition of Te also led to strong phonon scattering, reducing the thermal conductivity and achieving a high ZT value.
PHYSICAL REVIEW MATERIALS
(2022)
Article
Energy & Fuels
Daniel Ursu, Melinda Vajda, Marinela Miclau
Summary: The concept of Agriculture 4.0 proposes a combination of agriculture and solar energy as a possible solution to the energy and food crisis. This study demonstrates the feasibility of using a less-studied solar cell, known as DSSC, with an affordable commercial yellow dye to meet the requirements of an autonomous greenhouse. The successful implementation of DSSC in autonomous greenhouses depends on transparency, UV absorption, solar cell efficiency, and sustainability throughout the year.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Engineering, Electrical & Electronic
Melinda Vajda, Daniel Ursu, Nicolae Miclau, Narcis Duteanu, Marinela Miclau
Summary: The study presents the fabrication and testing of a flexible p-type dye-sensitized solar cell based on a porous Cu2O thin film on a copper substrate, utilizing P1 dye and an electrolyte with the I-3(-)/I- redox couple. A simple and cost-effective hydrothermal method with ethyl cellulose as a surfactant is proposed for synthesizing the porous Cu2O film. The best cell achieved high performance under 1 sun conditions, showcasing potential for the development of flexible p-type or tandem dye-sensitized solar cells.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Physics, Multidisciplinary
Mohit Chandra, Satish Yadav, Velaga Srihari, Himanshu Kumar Poswal, Rajeev Rawat, Kiran Singh
Summary: The pressure dependent structural properties of polycrystalline Mn2-xCrxO3 (x = 0, 0.01, 0.05) multiferroics have been investigated using synchrotron x-ray diffraction (SXRD) measurements up to 41 GPa at room temperature. The results show that all the studied samples undergo pressure induced structural phase transition to monoclinic phase, and the Cr substitutions lower the required pressure for phase transition.
Article
Physics, Applied
Juan P. Bolletta, Francois Fauth, Christine Martin, Antoine Maignan
Summary: This study investigates the magnetization reversal behavior of Ni4Nb2O9 and its dependence on non-magnetic Zn substitution. The results show that Zn substitution can control magnetization reversal in Ni4Nb2O9 and cause counterintuitive changes in its magnetic properties.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Chemistry, Inorganic & Nuclear
Sylvie Hebert, Raul Carbonio, Christine Martin, Antoine Maignan
Summary: The T-dependent Seebeck (S) of Sr2Fe1+xRe1-xO6 series samples (x <= 0.33) was investigated. These polycrystalline samples crystallize in the I4/m double perovskite structure. The decrease of magnetization with increasing x is explained by cation disorder, while the change in S sign and the positive magneto Seebeck effect are attributed to the spin polarized transport of these double-perovskite materials.
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
(2023)
Article
Materials Science, Multidisciplinary
Hanen Abdelli, Houeida Issa Hamoud, Juan Pablo Bolletta, Arnold Paecklar, Afrah Bardaoui, Krassimir L. Kostov, Ewelina Szaniawska, Antoine Maignan, Christine Martin, Mohamad El-Roz
Summary: A highly efficient CuFe2O4-based photocatalyst is reported for the photo-catalytic dehydrogenation of formic acid under visible light at room temperature. The catalyst exhibits high selectivity and stability, making it a promising material for photocatalytic dehydrogenation. This study provides a new route to design cost-effective Cu-based photocatalysts for visible-light driven reactions.
APPLIED MATERIALS TODAY
(2023)
Article
Materials Science, Multidisciplinary
J. N. Jiongo-Dongmo, J. P. Bolletta, A. Maignan, F. Damay, C. Martin
Summary: Ni4Nb2O9 and Co4Nb2O9 have different structures derived from corundum and exhibit distinct magnetic and electrical properties. The ferrimagnetism associated with magnetization reversal of Ni4Nb2O9 and the antiferromagnetism combined with the magnetic field control of polarization of Co4Nb2O9 are of interest for applications in spintronics. This study explores the Ni4-xCoxNb2O9 series to generate exotic magnetic ground states due to competing magnetic exchanges caused by the framework of the O-6 octahedra. The stability domains of each structure, as well as the evolution of structural and physical properties, are investigated, leading to the establishment of a (T, x) phase diagram.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Materials Science, Multidisciplinary
Juan P. Bolletta, Gabriel J. Cuello, Vivian Nassif, Emmanuelle Suard, Alexander Kurbakov, Antoine Maignan, Christine Martin, Raul E. Carbonio
Summary: Rare-earth orthoferrites provide a flexible platform for magnetic materials design, with magnetic properties arising from the interactions between R3+ and Fe3+ ions. SmFeO3 exhibits a unique high-temperature spin reorientation, which can be tuned to occur at room temperature by replacing Sm with Tm in the Sm0.70Tm0.30FeO3 compound. This study demonstrates the control of magnetic properties by small changes in composition within the Sm1-xTmxFeO3 series. Neutron powder diffraction was used to investigate the magnetic structure of a samarium-based perovskite using 152Sm, resulting in the construction of a magnetic phase diagram.
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)
