Progress in Solid State Chemistry最新文献_第6页

Boosting the phosphorus uptake of La2(CO3)3·8H2O based adsorbents via sodium addition: Relationship between crystal structure and adsorption capacity 通过添加钠提高基于 La2(CO3)3-8H2O 的吸附剂对磷的吸收：晶体结构与吸附容量之间的关系

IF 9.1 2区化学

Progress in Solid State Chemistry Pub Date : 2024-12-01 Epub Date: 2024-11-12 DOI: 10.1016/j.progsolidstchem.2024.100496

Zuo-Bei Wang , Xin Ye , Jie Yang , Yong-Hui Zhang , Zi-Ang Nan , Yi-Fan Wang , You-Gui Huang , Wei Wang

{"title":"Boosting the phosphorus uptake of La2(CO3)3·8H2O based adsorbents via sodium addition: Relationship between crystal structure and adsorption capacity","authors":"Zuo-Bei Wang , Xin Ye , Jie Yang , Yong-Hui Zhang , Zi-Ang Nan , Yi-Fan Wang , You-Gui Huang , Wei Wang","doi":"10.1016/j.progsolidstchem.2024.100496","DOIUrl":"10.1016/j.progsolidstchem.2024.100496","url":null,"abstract":"<div><div>Excess phosphate contents in water bodies triggers eutrophication, which posts significant challenges to the aquatic ecosystem. Lanthanum-carbonate based adsorbents exhibit excellent phosphate binding properties for remediating eutrophication. However, they suffer from significant adsorption-capacity loss (>85 %) at high pH. Little has been done on understanding this behavior for improving the phosphorus adsorption of lanthanum-carbonate adsorbents in alkaline environments (e.g. eutrophic water bodies). Here, we discover that La2(CO3)3·8H2O, when produced by a conversion reaction from NaLa(CO3)2·xH2O, exhibits high phosphate adsorption capacity in a wide pH window. Under alkaline conditions (e.g. pH = 10), its adsorption capacity decreases by only 8 % compared to the value under neutral pH. By isolating three different lanthanum-carbonate based compounds and analyzing their molecular structures, we find that the trace amount of Na+ residual in our La2(CO3)3·8H2O alters the chemical environment surrounding the La3+ ions, which may significantly boost the phosphate uptake at high pH. Our results provide molecular insights for further tuning the material structure of phosphate adsorbents to achieve robust performances.</div></div>","PeriodicalId":415,"journal":{"name":"Progress in Solid State Chemistry","volume":"76 ","pages":"Article 100496"},"PeriodicalIF":9.1,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142654389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation of Sr-substituted Ba1-xSrx(Zn1/3Nb2/3)O3 complex perovskites: Structural, electrical and electrochemical properties 研究锶取代的 Ba1-xSrx(Zn1/3Nb2/3)O3 复合包晶：结构、电学和电化学特性

IF 9.1 2区化学

Progress in Solid State Chemistry Pub Date : 2024-12-01 Epub Date: 2024-11-09 DOI: 10.1016/j.progsolidstchem.2024.100495

Y. Feng , K.B. Tan , S.K. Chang , Y. Sulaiman , H.N. Lim , M. Lu , Y. Wang

{"title":"Investigation of Sr-substituted Ba1-xSrx(Zn1/3Nb2/3)O3 complex perovskites: Structural, electrical and electrochemical properties","authors":"Y. Feng , K.B. Tan , S.K. Chang , Y. Sulaiman , H.N. Lim , M. Lu , Y. Wang","doi":"10.1016/j.progsolidstchem.2024.100495","DOIUrl":"10.1016/j.progsolidstchem.2024.100495","url":null,"abstract":"<div><div>Herein we report the structural, dielectric and electrochemical properties of Ba1-xSrx(Zn1/3Nb2/3)O3 (BSZN, 0 ≤ x ≤ 1) solid solution synthesised by solid-state reaction. A complete substitutional solid solution was obtained, wherein the BSZN cubic perovskites of the space group of Pm <math><mrow><mover><mn>3</mn><mo>‾</mo></mover></mrow></math> m were obtained at x ≤ 0.6 while the pseudo-cubic phases were discernible at x > 0.6. The nano-sized crystallites, as determined by both Scherrer and Williamson-Hall analyses, supported the claim of large polyhedral grains of 0.1–0.3 μm by FE-SEM. Both ε′ and tan δ were found to vary consistently with increasing dopant concentration, except for an anomalous observation for the composition, x = 0.6 with the lowest tan δ of 0.0783 and the highest ε′ of 27.5. Such phenomenon could be attributed to the combined effects of larger grain size, higher relative density and stronger polarisation per molar volume. The impedance analysis revealed that these BSZN perovskites were of the negative temperature coefficient of resistance (NTCR) type. The combined plots of imaginary modulus (M″) and impedance (Z″) against frequency showed the short-range movement of localised charge carriers, suggesting a non-Debye-type relaxation process.</div></div>","PeriodicalId":415,"journal":{"name":"Progress in Solid State Chemistry","volume":"76 ","pages":"Article 100495"},"PeriodicalIF":9.1,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142654388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

New solid solutions with the R-type hexaferrite structure, BaFe4-xMxM’2O11 (M = In, Sc; M’ = Ti, Sn) 具有 R 型六铁氧体结构 BaFe4-xMxM'2O11 (M = In, Sc; M' = Ti, Sn) 的新固溶体

IF 9.1 2区化学

Progress in Solid State Chemistry Pub Date : 2024-12-01 Epub Date: 2024-11-08 DOI: 10.1016/j.progsolidstchem.2024.100494

Yu-An Huang , Jun Li , Arthur P. Ramirez , M.A. Subramanian

{"title":"New solid solutions with the R-type hexaferrite structure, BaFe4-xMxM’2O11 (M = In, Sc; M’ = Ti, Sn)","authors":"Yu-An Huang , Jun Li , Arthur P. Ramirez , M.A. Subramanian","doi":"10.1016/j.progsolidstchem.2024.100494","DOIUrl":"10.1016/j.progsolidstchem.2024.100494","url":null,"abstract":"<div><div>Hexaferrites are a family of complex iron oxides with hexagonal structures. Novel compositions with the R-type hexaferrite structure, BaFe4-xMxM’2O11 (M = In, Sc; M’ = Ti, Sn; x = 0.0–1.8), are synthesized and characterized. Structural analyses using powder neutron diffraction reveal that trivalent iron cations are distributed among all the available M sites (octahedral and trigonal bipyramidal sites), with site preference varying with the composition. Ferrimagnetic behavior is observed for all the compounds, and the observed magnetic hysteresis loop indicates that the compounds are soft magnets. The color of the new solid solution can be tuned from dark reddish brown to reddish-orange and yellowish-orange as In or Sc substitutions increase. The origin of colors in these ferrite-based solid solutions results from the combination of ligand-to-metal charge transfer and electron-pair transitions across the face-shared octahedra, as seen in the hematite (Fe2O3). Reducing Fe content in the parent compound improves the diffuse reflectance in the near-infrared range, suggesting potential applications as cool pigments.</div></div>","PeriodicalId":415,"journal":{"name":"Progress in Solid State Chemistry","volume":"76 ","pages":"Article 100494"},"PeriodicalIF":9.1,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142654386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Towards improved stability of transition metal nitrides in aqueous solutions 提高过渡金属氮化物在水溶液中的稳定性

IF 9.1 2区化学

Progress in Solid State Chemistry Pub Date : 2024-09-01 Epub Date: 2024-07-15 DOI: 10.1016/j.progsolidstchem.2024.100474

Xiang Li , Anna Bergljót Gunnarsdóttir , Valery Pershina , Árni Björn Höskuldsson , Marc Francis Hidalgo , Egill Skúlason , Helga Dögg Flosadóttir , Cristina Giordano

{"title":"Towards improved stability of transition metal nitrides in aqueous solutions","authors":"Xiang Li , Anna Bergljót Gunnarsdóttir , Valery Pershina , Árni Björn Höskuldsson , Marc Francis Hidalgo , Egill Skúlason , Helga Dögg Flosadóttir , Cristina Giordano","doi":"10.1016/j.progsolidstchem.2024.100474","DOIUrl":"10.1016/j.progsolidstchem.2024.100474","url":null,"abstract":"<div>Transition metal nitrides (TMNs), in some cases referred as metallic ceramics, have unique physical and chemical properties, thanks to their ceramic-metallic nature, and are considered an attractive alternative to noble metals for electrochemical processes. In particular, theoretical work predicts TMNs as promising electrocatalysts towards the nitrogen reduction reaction (NRR). However, recent experimental studies under realistic conditions, have shown the release of lattice nitride to ammonia in a noncatalytic process, suggesting inherent instability of these materials. TMNs stability can be increased by the incorporation of a second metal in the lattice, to form bimetallic systems. Herein, we present a robust approach to prepare nonprecious transition multi-metallic nitride nano-catalysts, followed by a comprehensive study on their stability. The stability of the as-prepared catalysts was tested in electrolytes relevant for electrocatalysis, showing a higher chemical resistance of the bimetallic catalysts over the monometallic ones. This study suggests a novel approach to matching electrolyte pH and catalyst to ensure chemical stability in the electrochemical environment.</div>","PeriodicalId":415,"journal":{"name":"Progress in Solid State Chemistry","volume":"75 ","pages":"Article 100474"},"PeriodicalIF":9.1,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141695549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Unusual Tm3+ sensitization-induced white-emitting and thermostable improvement in Ba2Y2Ge4O13:Dy3+ phosphor for solid-state lighting and optical thermometry 用于固态照明和光学测温的 Ba2Y2Ge4O13:Dy3+ 荧光粉中非同寻常的 Tm3+ 敏化诱导白光发射和热稳定性改进

IF 9.1 2区化学

Progress in Solid State Chemistry Pub Date : 2024-09-01 Epub Date: 2024-08-30 DOI: 10.1016/j.progsolidstchem.2024.100477

Huan Tang, Xiaoyang Zhao, Yue Qin, Shanlin Liu, Hongzhi Zhang, Hong Li, Conglin Liu, Jing Zhu

{"title":"Unusual Tm3+ sensitization-induced white-emitting and thermostable improvement in Ba2Y2Ge4O13:Dy3+ phosphor for solid-state lighting and optical thermometry","authors":"Huan Tang, Xiaoyang Zhao, Yue Qin, Shanlin Liu, Hongzhi Zhang, Hong Li, Conglin Liu, Jing Zhu","doi":"10.1016/j.progsolidstchem.2024.100477","DOIUrl":"10.1016/j.progsolidstchem.2024.100477","url":null,"abstract":"<div>Currently, the development of single-phase white emitters is an interesting research topic. Researchers have paid much attention to tune white-emitting of Dy3+-activated phosphors via Tm3+ sensitization strategy. However, the role of Tm3+ sensitization on luminescence thermostability was usually underestimated. Herein, color-tunable germanate phosphors Ba2Y2Ge4O13 (BYGO):Tm3+,Dy3+ were prepared. The white light emission is achieved due to the effective energy transfer from Tm3+ to Dy3+. A BYGO:Tm3+,Dy3+-based w-LED exhibits warm white-emitting. Moreover, the back-energy transfer of Dy3+→Tm3+ contributes to the improvement of luminescence thermal stability. Meanwhile, the difference of temperature-dependent Tm3+ and Dy3+ emissions realizes satisfactory temperature sensing properties. This work provides a deep understanding for the role of Tm3+ sensitization strategy on color tuning and thermostable improvement, promoting multifunctional utilizations of Dy3+-activated phosphors.</div>","PeriodicalId":415,"journal":{"name":"Progress in Solid State Chemistry","volume":"75 ","pages":"Article 100477"},"PeriodicalIF":9.1,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142097276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

MIL-125 and its derivatives based photoelectrodes for photoelectrochemical applications 基于 MIL-125 及其衍生物的光电电极在光电化学中的应用

IF 9.1 2区化学

Progress in Solid State Chemistry Pub Date : 2024-09-01 Epub Date: 2024-08-27 DOI: 10.1016/j.progsolidstchem.2024.100476

Ying Yang , Miao Li , Long Chen , Yuelan Zhang , Xiaoqing Qiu

{"title":"MIL-125 and its derivatives based photoelectrodes for photoelectrochemical applications","authors":"Ying Yang , Miao Li , Long Chen , Yuelan Zhang , Xiaoqing Qiu","doi":"10.1016/j.progsolidstchem.2024.100476","DOIUrl":"10.1016/j.progsolidstchem.2024.100476","url":null,"abstract":"<div>Among the Material of Institute Lavoisier (MIL) compounds, MIL-125 has been proved to be potentially high photoactive electrode in the photoelectrochemical (PEC) devices. The great progress has been achieved in the preparation, structural optimization and applications of MIL-125, especially in the PEC technology, as witnessed by the quick increase in the number of published papers. Consequently, a comprehensive review of the current research status of MIL-125 based electrodes in PEC is warranted. This review provides an in-depth analysis of various PEC applications employing MIL-125 based photoelectrodes, such as sensing (including PEC biosensors, organic pollutant detection, and heavy metal ion sensing), water splitting for hydrogen production, photovoltaic cells (including dye-sensitized solar cells, quantum dot-sensitized solar cells, perovskite solar cells, and organic solar cells), photoelectrocatalysis, and photocathodic protection. Particular emphasis is placed on the signal amplification strategies, modification design, and reaction mechanisms of MIL-125 for PEC applications. Finally, the development opportunities and unsolved challenges associated with MIL-125 based materials in the PEC field are also highlighted. This comprehensive review is expected to expand the knowledge of recent advancements in MIL-125 and its derivatives modified electrodes and encourage researchers to promote the construction of efficient PEC systems.</div>","PeriodicalId":415,"journal":{"name":"Progress in Solid State Chemistry","volume":"75 ","pages":"Article 100476"},"PeriodicalIF":9.1,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142087873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of the sintering methods on the electrical properties of cerium-doped aluminium nitride ceramics 烧结方法对掺铈氮化铝陶瓷电气性能的影响

IF 9.1 2区化学

Progress in Solid State Chemistry Pub Date : 2024-09-01 Epub Date: 2024-07-11 DOI: 10.1016/j.progsolidstchem.2024.100473

Hatim Saidi , M. Coëffe-Desvaux , N. Pradeilles , P. Marchet , M. Joinet , A. Maître

{"title":"Influence of the sintering methods on the electrical properties of cerium-doped aluminium nitride ceramics","authors":"Hatim Saidi , M. Coëffe-Desvaux , N. Pradeilles , P. Marchet , M. Joinet , A. Maître","doi":"10.1016/j.progsolidstchem.2024.100473","DOIUrl":"https://doi.org/10.1016/j.progsolidstchem.2024.100473","url":null,"abstract":"<div>This article investigates the densification of AlN ceramics through both Gas Pressure Sintering (GPS) and Spark Plasma Sintering (SPS) methods, employing cerium aluminates (CeAlO3) as sintering aids and comparing their influence to that of the usual cerium oxide (CeO2). While sintering aids like CeO2 promote densification, CeAlO3 exhibited lower reactivity during both SPS and GPS sintering. Chemical reactions between cerium oxide and aluminium oxide primarily involved the reduced phase as cerium sesquioxide (Ce2O3). On the basis on the Ce2O3–Al2O3 pseudo-binary system, the formation of secondary phases, such as CeAlO3 and CeAl11O18, during sintering was explained and confirmed by XRD. From complementary characterizations, it has been shown that sintering significantly impacted secondary phase composition and distribution. By employing specific densification cycles, SPS yielded smaller grains and thicker secondary phase cordons which led to enhanced electrical conductivity. Conversely, GPS produced coarser microstructures including larger grains and a network of secondary phases and some agglomerations at the triple points. These modifications influenced the overall conductivity. SPSed samples with 3 wt.% CeO2 and short dwelling times demonstrated higher electrical conductivity, exceeding by about 6 orders of magnitude the electrical conductivity of those obtained by GPS.</div>","PeriodicalId":415,"journal":{"name":"Progress in Solid State Chemistry","volume":"75 ","pages":"Article 100473"},"PeriodicalIF":9.1,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141604994","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of initial crystalline phase of TiO2 to obtain TiN thin films from sol-gel route by rapid thermal nitridation process 通过快速热氮化工艺从溶胶-凝胶路线获得 TiN 薄膜的 TiO2 初始晶相的影响。

IF 9.1 2区化学

Progress in Solid State Chemistry Pub Date : 2024-09-01 Epub Date: 2024-05-14 DOI: 10.1016/j.progsolidstchem.2024.100462

{"title":"Influence of initial crystalline phase of TiO2 to obtain TiN thin films from sol-gel route by rapid thermal nitridation process","authors":"","doi":"10.1016/j.progsolidstchem.2024.100462","DOIUrl":"10.1016/j.progsolidstchem.2024.100462","url":null,"abstract":"<div>Titanium Nitride (TiN) is widely used in many industrial sectors for its outstanding performances including its mechanical properties, high chemical and thermal stability. Associated with its plasmonic behavior, TiN thin films are very promising for the manufacturing of optical metasurfaces devices or new plasmonic materials. Among the processes that make it easy to obtain metal nitride coatings, nitriding of metal oxide films has become increasingly popular in recent years. A multitude of synthesis processes can be used to obtain TiO2 films, with different crystalline states (amorphous, anatase or rutile) depending on the technique used, which can then be converted into TiN coatings. In this paper, the effect of the initial crystalline state of TiO2 layers was investigated on the structural properties, plasmonic properties and the friction behavior of TiN thin films obtained by Rapid Thermal Nitridation (RTN). The results indicate that, regardless of the crystalline state of the starting TiO2 film, the RTN process leads to complete nitridation of TiN coating. Moreover, even though surface morphology and friction properties differ slightly, depending on the crystallization of the starting TiO2, plasmonic properties remain very similar, thus highlighting the great versatility and uniformity of this nitriding technique, enabling TiN to be produced for a wide range of applications.</div>","PeriodicalId":415,"journal":{"name":"Progress in Solid State Chemistry","volume":"75 ","pages":"Article 100462"},"PeriodicalIF":9.1,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141037481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Editorial ISNT 2023 ISNT 2023 编辑

IF 9.1 2区化学

Progress in Solid State Chemistry Pub Date : 2024-09-01 Epub Date: 2024-08-03 DOI: 10.1016/j.progsolidstchem.2024.100475

Franck Tessier, Laurent Le Gendre, Samuel Bernard, Régis Gautier

引用次数: 0

Elpasolite-type superstructures in inverse perovskite nitrides 反向过氧化物氮化物中的埃尔帕索石型超结构

IF 12 2区化学

Progress in Solid State Chemistry Pub Date : 2024-06-01 Epub Date: 2024-02-28 DOI: 10.1016/j.progsolidstchem.2024.100444

Lukas Link , Haichen Wang , Thomas C. Hansen , Volodymyr Baran , Rainer Niewa

{"title":"Elpasolite-type superstructures in inverse perovskite nitrides","authors":"Lukas Link , Haichen Wang , Thomas C. Hansen , Volodymyr Baran , Rainer Niewa","doi":"10.1016/j.progsolidstchem.2024.100444","DOIUrl":"10.1016/j.progsolidstchem.2024.100444","url":null,"abstract":"<div>We present a range of inverse perovskite nitrides with an elpasolite-type superstructure. (Ca3N0.682(9))Sn and (Ca3N0.559(7))Pb are variants of the previously described (Ca3N)Sn and (Ca3N)Pb which contain less nitrogen and crystallize in <math><mi>F</mi><mi>m</mi><mrow><mover><mrow><mn>3</mn></mrow><mo>̄</mo></mover></mrow><mi>m</mi></math>. (Ba3N0.5)Sn and (Ba3N0.5)Pb resemble the previously reported perovskites (Ba3Nx)Sn and (Ba3Nx)Pb, but with both the superstructure and octahedral tilting, resulting in space group <math><mi>R</mi><mrow><mover><mrow><mn>3</mn></mrow><mo>̄</mo></mover></mrow></math>. (Ca3N0.77(2))Si, (Ca3N0.669(6))Ge, (Sr3N0.5)Ge and (Ba3N0.5)Ge all crystallize in P21/n. Among these, only (Ca3Nx)Ge has been previously described as (Ca3N)Ge. (Ca3N0.77(2))Si is notably the first compound in which mutually isolated N3− and Si4− ions coexist. There also exists a version with composition (Ca3N0.86(6))Si, which crystallizes in the cubic perovskite aristotype structure with space group <math><mi>P</mi><mi>m</mi><mrow><mover><mrow><mn>3</mn></mrow><mo>̄</mo></mover></mrow><mi>m</mi></math>. Similarly, there are versions of (Sr3N0.5)Ge, (Ba3N0.5)Sn and (Ba3N0.5)Pb with elevated nitrogen contents, less strongly tilted octahedra and no apparent superstructure. Electronic structure calculations indicate a metallic nature of the title compounds, with rather narrow improper band gaps for the strontium and barium compounds.</div>","PeriodicalId":415,"journal":{"name":"Progress in Solid State Chemistry","volume":"74 ","pages":"Article 100444"},"PeriodicalIF":12.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140128341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0