Journal of Solid State Chemistry最新文献

{"title":"MOF-derived nickel–cobalt nanostructures for high-performance electrocatalytic hydrogen evolution reaction","authors":"Yelin Bai,&nbsp;Adeela Nairan,&nbsp;Ruiming Zheng,&nbsp;Abrar Ahmad,&nbsp;Junkuo Gao,&nbsp;Usman Khan","doi":"10.1016/j.jssc.2025.125369","DOIUrl":"10.1016/j.jssc.2025.125369","url":null,"abstract":"<div><div>Metal-organic frameworks (MOFs) are promising materials for energy-related applications, but their poor electrical conductivity limits their potential in electrocatalysis. In this study, <em>p</em>-Ni_xCo_1-x-MOF cathode catalysts were synthesized via a hydrothermal method followed by low-temperature annealing. This approach preserves the organic ligands within the MOF structure while exposing metal particles, thereby improving conductivity. The resulting catalyst demonstrates remarkable hydrogen evolution reaction (HER) performance, achieving an overpotential of only 35 mV and 142 mV at a geometric current density of 10 mA cm⁻² and 300 mA cm⁻², respectively, with a small Tafel slope of 34.78 mV dec⁻¹, along with excellent long-term stability that p-Ni_0.8Co_0.2-MOF enabled sustained electrolysis at current densities of 10 mA cm⁻² and 100 mA cm⁻² for one week, compared with the MOF-based catalysts used for hydrogen evolution in recent years, the performance is excellent. The low-temperature annealing maintains the integrity of the organic framework and induces beneficial surface modifications, increasing the number of active sites and enhancing reaction kinetics and electron transfer efficiency for the superior electrocatalytic performance of the catalysts.</div></div>","PeriodicalId":378,"journal":{"name":"Journal of Solid State Chemistry","volume":"348 ","pages":"Article 125369"},"PeriodicalIF":3.2,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143824526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Strong red upconversion luminescence and optical thermometry of In2O3: Er3+, Yb3+ phosphor","authors":"Daobin Zhu ,&nbsp;Junshan Hu ,&nbsp;Yuxiang Wu ,&nbsp;Keyu Guo ,&nbsp;Changchun Ding ,&nbsp;Rangrang Fan ,&nbsp;Chunfeng Dong ,&nbsp;Wei Jin ,&nbsp;Yongtao Liu","doi":"10.1016/j.jssc.2025.125358","DOIUrl":"10.1016/j.jssc.2025.125358","url":null,"abstract":"<div><div>Er³⁺ ions and Yb³⁺ ions co-doped indium oxide (In₂O₃) phosphors were successfully synthesized by high temperature solid phase method. At 980 nm laser excitation, the phosphor has weak 552 nm green and strong 661 nm red emission bands. And the upconversion luminescence (UCL) intensity of red light is significantly stronger than that of green light. They are attributed to the ⁴S_3/2 → ⁴I_15/2 and ⁴F_9/2 → ⁴I_15/2 transitions of Er³⁺, respectively. And the optimal sample is In₂O₃: 4 % Er³⁺, 10 % Yb³⁺. The appearance of phosphor was observed by field emission scanning electron microscopy. The UCL of phosphor is a two-photon process based on power dependence. In addition, photoluminescence excitation spectra and down-conversion luminescence spectra are used to explain the luminescence mechanism. The temperature sensing property of the phosphor in the temperature range of 348 K–598 K were tested. The sensitivity were obtained by fluorescence intensity ratio (<em>FIR</em>). The fit degree of <em>FIR</em> is 0.9936. It achieves a maximum relative sensitivity of 0.73 % K⁻¹ at 348 K and a maximum absolute sensitivity of 0.039 K⁻¹ at 373 K. In₂O₃: Er³⁺, Yb³⁺ phosphors with high quality luminescence and excellent sensitivity have important application value in non-contact temperature measurement.</div></div>","PeriodicalId":378,"journal":{"name":"Journal of Solid State Chemistry","volume":"348 ","pages":"Article 125358"},"PeriodicalIF":3.2,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143808649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"One-step electrodeposition synthesis of composites of NiFeMn alloy and its hydroxide as an efficient bifunctional water splitting catalyst","authors":"Yujie Hou,&nbsp;Qian Lu,&nbsp;Zhiliang Guo,&nbsp;Yuli Zhang,&nbsp;Yifan Zhang,&nbsp;Xinyi Wan,&nbsp;Lixu Lei","doi":"10.1016/j.jssc.2025.125356","DOIUrl":"10.1016/j.jssc.2025.125356","url":null,"abstract":"<div><div>The rational design and synthesis of an efficient, durable, and inexpensive water splitting catalyst is essential for industrial electrochemical hydrogen production. In this paper, a composite catalyst of NiFeMn alloy and its hydroxide (NiFeMn/NM) has been grown in situ on a nickel mesh (NM) by a facile one-step electrodeposition method, which has hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) overpotentials of just 54 mV and 241 mV at 10 mA cm⁻² in 1.0 M KOH, respectively. Considering the actual production conditions, the NiFeMn/NM electrode is utilized as the cathode and anode in an electrolyzer with 6.0 M KOH electrolyte, it achieves a current density of up to 1145 mA cm⁻² at 90 °C at a cell voltage of 2.0 V, and shows no significant increase over 200 h under a constant current of 500 mA cm⁻². This study provides a reference value for the preparation of low-cost and high-activity bifunctional electrocatalysts.</div></div>","PeriodicalId":378,"journal":{"name":"Journal of Solid State Chemistry","volume":"348 ","pages":"Article 125356"},"PeriodicalIF":3.2,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143791963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The first principles study on double halide perovskites Cs2HfX6 (X= Cl, Br and I): structural, electronic, optical properties, and strain effects","authors":"Xiaomeng Wang ,&nbsp;Hao Zhang ,&nbsp;Wei Jiang ,&nbsp;Quan Zhuang ,&nbsp;Shuang Feng ,&nbsp;Peifang Li ,&nbsp;Tianji Ou ,&nbsp;Xinjun Ma","doi":"10.1016/j.jssc.2025.125353","DOIUrl":"10.1016/j.jssc.2025.125353","url":null,"abstract":"<div><div>In this study, we conducted an in-depth analysis of the structural, electronic, and optical properties of the Cs₂HfX₆ (X = Cl, Br, and I). Our study employed first-principles calculations, focusing on the application of the Perdew-Burke-Ernzerhof (PBE) and Heyd-Scuseria-Ernzerhof (HSE06) functionals to determine the effects of halide ions on the material's properties. The band structures ensure that Cs₂HfCl₆, Cs₂HfBr₆, and Cs₂HfI₆ all exhibit direct bandgap characteristics, with bandgap energies of 5.59 eV, 4.48 eV, and 3.16 eV, respectively. The bandgap variation is attributed to the changes in Hf-X bond lengths. We successfully tuned the structure and electronic bandgap of these materials under strains ranging from −6 % to 6 % using the PBE functional. The bandgaps of all three materials decrease under compressive strain, whereas they increase under tensile strain. Furthermore, we have determined the light absorption coefficient, optical conductivity, refractive index, extinction coefficient, energy loss, and reflectivity to elucidate the optical properties that have not been previously explored. The optical properties reveal that the Cs₂HfX₆ compounds (X = Cl, Br, I) demonstrate robust absorption in the ultraviolet spectrum. We further calculated the real and imaginary parts of the dielectric function, along with the light absorption coefficient and refractive index, across a strain range of −6 %–6 %. Our findings indicate that strain has a significant impact on the optical properties of the material, the dielectric constant increases (red-shift) under compressive strain and decreases (blue-shift) under tensile strain, thereby enhancing the optical performance. These computational findings offer substantial evidence that these materials exhibit exceptional scintillation characteristics, positioning them as strong contenders for the development of efficient photodetectors and light-emitting diodes (LEDs).</div></div>","PeriodicalId":378,"journal":{"name":"Journal of Solid State Chemistry","volume":"348 ","pages":"Article 125353"},"PeriodicalIF":3.2,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143791967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Critical behavior and magnetocaloric properties of (0.5)Co0.7Zn0.3Fe2O4 / (0.5)La0.67Sr0.23K0.10MnO3 nanocomposite","authors":"Sunita Keshri ,&nbsp;Manoj Kumar Rout ,&nbsp;Piotr Wiśniewski","doi":"10.1016/j.jssc.2025.125354","DOIUrl":"10.1016/j.jssc.2025.125354","url":null,"abstract":"<div><div>This research investigates the microstructural and magnetocaloric characteristics, critical behavior, and type of magnetic interaction in Co_0.7Zn_0.3Fe₂O₄ (CZFO)/La_0.67Sr_0.23K_0.10MnO₃ (LSKMO) nanocomposite sample, obtained by mixing the nanoparticles of spinel ferrite CZFO and manganite LSKMO in 1:1 ratio. The Rietveld refined X-ray diffraction analysis confirms the presence of both phases without any interdiffusion, whereas a distribution of irregular and polyhedral grains is observed using field emission scanning electron microscopy. Magnetic measurements confirm a second-order magnetic transition with a <span><math><mrow><msub><mi>T</mi><mi>C</mi></msub></mrow></math></span> value of 358 K. The values of change in maximum magnetic entropy and relative cooling power of this sample under a 1 T magnetic field are found to be 0.49 Jkg⁻¹K⁻¹ and 23.7 Jkg^-1, respectively. The change in specific heat (<span><math><mrow><mrow><mo>Δ</mo><msub><mi>C</mi><mrow><mi>P</mi><mspace></mspace></mrow></msub></mrow><mo>)</mo></mrow></math></span> alters from negative to positive around <span><math><mrow><msub><mrow><mspace></mspace><mi>T</mi></mrow><mi>C</mi></msub></mrow></math></span>, with estimated values of <span><math><mrow><msubsup><mrow><mo>Δ</mo><mi>C</mi></mrow><mi>P</mi><mi>max</mi></msubsup></mrow></math></span> and <span><math><mrow><msubsup><mrow><mo>Δ</mo><mi>C</mi></mrow><mi>P</mi><mi>min</mi></msubsup></mrow></math></span> as <span><math><mrow><mn>4.04</mn></mrow></math></span> and <span><math><mrow><mn>3.20</mn></mrow></math></span> Jkg⁻¹K⁻¹, respectively. In order to study the critical behavior of the sample near <span><math><mrow><msub><mi>T</mi><mi>C</mi></msub></mrow></math></span>, the critical exponents <strong>(</strong><span><math><mrow><mi>α</mi></mrow></math></span>, <span><math><mrow><mi>β</mi></mrow></math></span>, <span><math><mrow><mi>γ</mi></mrow></math></span>, and <span><math><mrow><mi>δ</mi></mrow></math></span>) were obtained through modified Arrott plots, critical isotherm scaling, Widom scaling relation, and renormalization group theory. Our study suggests that the <span><math><mrow><mn>3</mn><mi>D</mi></mrow></math></span> Heisenberg model, characterized by short-range spin-spin interaction, is the most appropriate model to understand critical behavior. The present results can be helpful for selecting a novel approach to choosing the materials for magneto-refrigerant devices operating close to room temperature.</div></div>","PeriodicalId":378,"journal":{"name":"Journal of Solid State Chemistry","volume":"348 ","pages":"Article 125354"},"PeriodicalIF":3.2,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143825995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impregnation of Metal ions on ZIF-67 Towards the Production of Mixed-Metals Spinels for OER Electrocatalysis","authors":"Annaíres de Almeida Lourenço ,&nbsp;Rafael A. Raimundo ,&nbsp;Ricardo Francisco Alves ,&nbsp;Rodolfo B. da Silva ,&nbsp;Daniel Araújo Macedo ,&nbsp;Fausthon Fred da Silva","doi":"10.1016/j.jssc.2025.125352","DOIUrl":"10.1016/j.jssc.2025.125352","url":null,"abstract":"<div><div>Electrochemical water splitting is a key method for sustainable hydrogen (H₂) production, but its efficiency is hindered by the slow kinetics and high overpotential of the oxygen evolution reaction (OER). This study investigates the synthesis and OER electrocatalytic performance of MCo₂O₄ (M = Co, Fe, Ni, Mn, or Zn) nanoparticles derived from ZIF-67, named here Co₃O₄, Co₃O₄(Fe), Co₃O₄(Ni), Co₃O₄(Mn), and Co₃O₄(Zn). Here, a systematic detailed study was also conducted to investigate the influence of metal cation impregnation on ZIF-67 and its impact on the OER electrocatalytic activity of these transition metal cobaltites nanoparticles. The materials were obtained <em>via</em> direct calcination of the previously modified ZIF-67, and the impregnation process was also investigated. Structural (XRD), physicochemical (Raman spectroscopy, FT-IR and UV-VIS), and magnetic characterizations confirm the formation of pure crystalline phases for Co₃O₄, NiCo₂O₄, MnCo₂O₄, and ZnCo₂O₄, while the Fe-modified sample resulted in a nanocomposite (FeCo₂O₄/Co₃O₄). Morphological analysis revealed highly agglomerated sphere-like nanoparticles, with sizes between 12.1 nm (Co₃O₄(Fe)) and 20.8 nm (Co₃O₄(Mn)). OER performance in 1.0 M KOH showed overpotential values of 330 mV, 318 mV, 321 mV, 316 mV, and 310 mV for Co₃O₄, Co₃O₄(Fe), Co₃O₄(Ni), Co₃O₄(Mn), and Co₃O₄(Zn), respectively, at 10 mA cm^-2. Tafel slopes ranged from 64.13 mV dec^-1 (Co₃O₄(Fe)) to 97.42 mV dec^-1 (Co₃O₄(Ni)), indicating a surface adsorption-controlled kinetics. Co₃O₄(Zn) exhibited the highest electrochemical surface area (123.50 cm²) and double-layer capacitance (4.94 mF), correlating with superior electrocatalytic performance. Stability tests confirmed chemical durability for up to 15 hours. These results demonstrate the potential of ZIF-67-derived transition metal cobaltites as effective OER electrocatalysts, with Co₃O₄(Zn) showing the most promising activity.</div></div>","PeriodicalId":378,"journal":{"name":"Journal of Solid State Chemistry","volume":"348 ","pages":"Article 125352"},"PeriodicalIF":3.2,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143791966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mixed-valent ternary sulfide Eu5In5S13","authors":"Pritam Das ,&nbsp;Vidyanshu Mishra ,&nbsp;Ashutosh K. Singh ,&nbsp;Diganta Sarkar ,&nbsp;Vladimir K. Michaelis ,&nbsp;Alannah M. Hallas ,&nbsp;Dominic H. Ryan ,&nbsp;Arthur Mar","doi":"10.1016/j.jssc.2025.125351","DOIUrl":"10.1016/j.jssc.2025.125351","url":null,"abstract":"<div><div>Europium indium sulfide, Eu₅In₅S₁₃, was prepared at 1000 °C. Single-crystal X-ray diffraction reveals that it adopts the Pb₄In₂Bi₄S₁₃-type structure (orthorhombic, space group <em>Pbam</em>, <em>a</em> = 20.722(2) Å, <em>b</em> = 25.911(3) Å, <em>c</em> = 3.9883(4) Å, <em>Z</em> = 4), built up from Eu-centred bicapped trigonal prisms and In-centred tetrahedra and octahedra; two metal sites are disordered with Eu and In atoms in octahedral coordination. Magnetic susceptibility measurements, electron paramagnetic resonance spectroscopy, and ¹⁵¹Eu Mössbauer spectroscopy indicate the coexistence of magnetic Eu²⁺ and non-magnetic Eu³⁺. The optical diffuse reflectance spectrum shows a 1.5 eV band gap, which is a direct one as indicated by electronic structure calculations.</div></div>","PeriodicalId":378,"journal":{"name":"Journal of Solid State Chemistry","volume":"348 ","pages":"Article 125351"},"PeriodicalIF":3.2,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143799697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Construction of a spherical chiral covalent organic framework for efficient asymmetric aldol catalysis","authors":"Yu Wang ,&nbsp;Yuexing Zheng ,&nbsp;Hong Chen ,&nbsp;Xiang Chen ,&nbsp;Kai Zhang ,&nbsp;Wanwen Liang ,&nbsp;Yuwei Zhang ,&nbsp;Shengrun Zheng ,&nbsp;Jun Fan ,&nbsp;Songliang Cai","doi":"10.1016/j.jssc.2025.125350","DOIUrl":"10.1016/j.jssc.2025.125350","url":null,"abstract":"<div><div>Developing chiral covalent organic frameworks (COFs) with high catalytic activity, stereoselectivity, and recyclability is challenging. Here, we designed a chiral building block (<em>L</em>-DTP-Boc) from natural proline, which was reacted with 1,3,5-tris(4-aminophenyl) benzene (TAPB) at room temperature to construct a spherical chiral COF (<em>L</em>-DTP-TAPB-Boc). After removing the Boc group, the resulting <em>L</em>-DTP-TAPB COF retained high crystallinity, spherical morphology, and abundant chiral catalytic sites, rendering it an effective catalyst for asymmetric aldol reactions. It achieved a 96 % yield and 87 % enantiomeric excess (ee) in the reaction between <em>p</em>-nitrobenzaldehyde and cyclohexanone within 3 days, outperforming most reported chiral COFs and metal-organic frameworks (MOFs). Additionally, it demonstrated excellent recyclability with minimal loss in performance after five cycles. We also proposed a potential mechanism for the aldol reaction catalyzed by chiral <em>L</em>-DTP-TAPB COF. This work not only offers new insights into the design of spherical chiral COFs but also uncovers their vast potential as effective heterogeneous chiral catalysts for asymmetric aldol reactions.</div></div>","PeriodicalId":378,"journal":{"name":"Journal of Solid State Chemistry","volume":"348 ","pages":"Article 125350"},"PeriodicalIF":3.2,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143808743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preparation and microwave absorption properties of MWCNTs/RGO/NiFe-LDH three-dimensional composites with varying metal ratios","authors":"Guoxin Ding ,&nbsp;Xiangxiang Chen ,&nbsp;Yuexiang Hu ,&nbsp;Yan Liu ,&nbsp;Jun Liu ,&nbsp;Guojun Cheng","doi":"10.1016/j.jssc.2025.125348","DOIUrl":"10.1016/j.jssc.2025.125348","url":null,"abstract":"<div><div>The design of the material structure significantly influences microwave absorption properties. Enhancing electromagnetic performance requires the creation of diverse and heterogeneous interfaces to promote extensive wave reflections. This study developed 3D composites with point (NiFe-LDH), line (multi-walled carbon nanotubes, MWCNTs), and surface (reduced graphene oxide, RGO) architectures using ultrasonic stirring and a hydrothermal process, aiming to achieve improved electromagnetic properties. At a Ni:Fe ratio of 3:1, MWCNTs are interspersed within the layers of reduced RGO, forming a distinctive three-dimensional network structure. Additionally, on the MWCNTs/RGO composite's surface, NiFe-LDH flakes grow uniformly. The resulting composite exhibits an effective absorption bandwidth (EAB) of 5.2 GHz and a minimum reflection loss (RL_min) of −57.93 dB at a thickness of 1.64 mm. Furthermore, a thickness of 1.70 mm achieves a maximum EAB of 6.88 GHz. These results demonstrate that the MWCNTs/RGO/NiFe-LDH composite provides a broad microwave absorption bandwidth and high absorption efficiency, making it a promising candidate for developing advanced materials for microwave absorption applications.</div></div>","PeriodicalId":378,"journal":{"name":"Journal of Solid State Chemistry","volume":"347 ","pages":"Article 125348"},"PeriodicalIF":3.2,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143759587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Two new francisite compounds Cu3Bi(SeO3)2O2X (X = F and NO3) with ferromagnetic spin-1/2 kagomé layers","authors":"Zhangzhen He,&nbsp;Mengsi Zhang,&nbsp;Zhiying Zhao,&nbsp;Meiyan Cui","doi":"10.1016/j.jssc.2025.125349","DOIUrl":"10.1016/j.jssc.2025.125349","url":null,"abstract":"<div><div>Two new compounds Cu₃Bi(SeO₃)₂O₂X (X = F and NO₃) were synthesized by means of hydrothermal reaction, both crystallizing in a orthorhombic system with space group <em>Pmmn</em> and exhibiting a layer structure, where the planar CuO₄ squares connect to each other via corner-sharing to form a distorted kagome network, while nonmagnetic (SeO₃)^2- groups and Bi³⁺ ions are located between adjacent kagome layers. Magnetic results of magnetic and heat capacity measurements confirm that these two compounds both show an antiferromagnetic ordering and field-induced spin-flip transition at low temperature, which are similar to those observed in francisite-type compounds.</div></div>","PeriodicalId":378,"journal":{"name":"Journal of Solid State Chemistry","volume":"347 ","pages":"Article 125349"},"PeriodicalIF":3.2,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143785565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}