Solid State Sciences最新文献_第3页

Entropy stabilized Heusler alloys for thermoelectric applications 用于热电应用的熵稳定海斯勒合金

IF 3.4 3区化学

Solid State Sciences Pub Date : 2024-10-22 DOI: 10.1016/j.solidstatesciences.2024.107728

Nagendra Singh Chauhan , Qiang Zhang

引用次数: 0

Structural, optical, and thermal traits of Sm³⁺-doped SrB₂O₄ phosphors for solid-state lighting applications 用于固态照明的 Sm³⁺ 掺杂 SrB₂O₄ 荧光粉的结构、光学和热学特性

IF 3.4 3区化学

Solid State Sciences Pub Date : 2024-10-18 DOI: 10.1016/j.solidstatesciences.2024.107724

Tejas , A. Princy , S Masilla Moses Kennedy , M.I. Sayyed , Taha A. Hanafy , Sudha D. Kamath

{"title":"Structural, optical, and thermal traits of Sm³⁺-doped SrB₂O₄ phosphors for solid-state lighting applications","authors":"Tejas , A. Princy , S Masilla Moses Kennedy , M.I. Sayyed , Taha A. Hanafy , Sudha D. Kamath","doi":"10.1016/j.solidstatesciences.2024.107724","DOIUrl":"10.1016/j.solidstatesciences.2024.107724","url":null,"abstract":"<div><div>We synthesized Sm³⁺-doped SrB₂O₄ phosphors through a solid-state reaction method, varying the Sm³⁺ doping concentrations. Structural and morphological characteristics of material were investigated using Fourier-transform infrared spectroscopy (FTIR), X-Ray Diffraction (XRD) and scanning electron microscopy (SEM). Optical transitions were analyzed by recording the diffuse reflectance spectroscopy, while photoluminescent (PL) spectra were used to evaluate luminescence properties. The PL spectra revealed a strong orange emission at 598 nm under 402 nm excitation. The optimal Sm³⁺ doping concentration was determined to be 0.02 mol, beyond which concentration quenching occurred. This quenching is attributed to exchange-type interactions, which facilitate non-radiative energy relaxation. The CIE color chromaticity coordinates of all the synthesized phosphors fell within the orange region of the chromaticity diagram. Temperature dependent photoluminescence revealed lower activation energy and phonon energy. Thermal quenching temperature was calculated which is inline with commercially available LEDs. All of these results indicate the candidature of SrB2O4 phosphor doped with Sm3+ ions for solid state lighting and optical thermal sensing applications.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"157 ","pages":"Article 107724"},"PeriodicalIF":3.4,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142527508","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}

引用次数: 0

Enhanced photocatalytic performance of TiO2 with tunable oxygen vacancies induced by H2/N2 mixture treatment H2/N2 混合气处理诱导具有可调氧空位的 TiO2 光催化性能增强

IF 3.4 3区化学

Solid State Sciences Pub Date : 2024-10-18 DOI: 10.1016/j.solidstatesciences.2024.107726

Jiufu Chen , Binghao Wang , Jianzhang Li, Junbo Zhong

{"title":"Enhanced photocatalytic performance of TiO2 with tunable oxygen vacancies induced by H2/N2 mixture treatment","authors":"Jiufu Chen , Binghao Wang , Jianzhang Li, Junbo Zhong","doi":"10.1016/j.solidstatesciences.2024.107726","DOIUrl":"10.1016/j.solidstatesciences.2024.107726","url":null,"abstract":"<div><div>Surface treatment can effectively modulate the surface properties of a photocatalyst to hasten the separation and transfer of photoinduced charges, ultimately achieving high photocatalytic performance. Herein, surface treatment of anatase-phase TiO2 prepared by a hydrothermal method was performed under H2/N2 mixed atmosphere. The experimental results demonstrate that roasting TiO2 in a H2/N2 atmosphere can effectively reduce partial Ti4+ to Ti3+, thereby facilitating the production of tunable oxygen vacancies (OVs) by disrupting Ti-O-Ti bonds. OVs can construct defective energy levels to bring about a decrease in the bandgap of TiO2 and an extension of light absorption range. Moreover, OVs remarkedly improve the separation of photoinduced charges of TiO2 and accelerate the photocatalytic reaction as active sites. The photocatalytic experimental results demonstrate that TiO2 exhibits the highest performance when roasting TiO2 in a H2/N2 atmosphere for 2 h, and the photocatalytic degradation rate constant of rhodamine B (RhB) and tetracycline (TC) on this sample under simulated solar light irradiation is 2.24 and 1.11 times higher than that on the reference TiO2, respectively. These findings provide valuable insights for designing highly efficient photocatalysts for effective water pollution treatment.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"157 ","pages":"Article 107726"},"PeriodicalIF":3.4,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142527507","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}

引用次数: 0

More about the BaO(BaCO3)–Lu2O3–CuO system 关于 BaO(BaCO3)-Lu2O3-CuO 体系的更多信息

IF 3.4 3区化学

Solid State Sciences Pub Date : 2024-10-17 DOI: 10.1016/j.solidstatesciences.2024.107722

Oksana Zaremba, Mariia-Suzanna Teplinska, Pavlo Demchenko, Vasyl Kordan, Roman Gladyshevskii

{"title":"More about the BaO(BaCO3)–Lu2O3–CuO system","authors":"Oksana Zaremba, Mariia-Suzanna Teplinska, Pavlo Demchenko, Vasyl Kordan, Roman Gladyshevskii","doi":"10.1016/j.solidstatesciences.2024.107722","DOIUrl":"10.1016/j.solidstatesciences.2024.107722","url":null,"abstract":"<div><div>The phase diagram of the BaO(BaCO3)–Lu2O3–CuO system was built at 900 °C. It comprises of 8 single-phase, 15 two-phase, and 8 three-phase regions. The boundary oxide systems Lu2O3–CuO and BaO–CuO contain the phases Lu2Cu2O5 (structure type Ho2Cu2O5, Pearson symbol oP36, space group Pna21, a = 10.702(1), b = 3.412(1), c = 12.360(1) Å, RB = 0.076) and Ba44Cu45O90 (own structure type, cI400, Im-3m, a = 18.294(3) Å, RB = 0.114), whereas in the Lu2O3–BaO(BaCO3) system the oxide-carbonate Ba3Lu2[CO3]O5 (Ba3Yb2[CO3]O5, tP26, P4/mmm, a = 4.322(1), c = 11.862(2) Å, RB = 0.107) was identified under the conditions of the experiment. Two quaternary oxides were observed. The structure of BaLu2CuO5 was confirmed (BaY2CuO5, oP36, Pnma), whereas the structure of the phase with approximate composition Ba3LuCu2O6.5 still needs to be established. The electrochemical properties of BaLu2CuO5 as cathode material in Li-ion batteries were investigated. The existence of a (in part) substitutional solid solution BaLu2CuO5:Li was confirmed by the decrease of the unit-cell volume (−0.11 %). No traces of the formation of a phase with YBCO-type structure were detected at 900 °C.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"157 ","pages":"Article 107722"},"PeriodicalIF":3.4,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142527772","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}

引用次数: 0

Synthesis and investigation of the structure, thermal and electrical properties of new Tl5-xKxLuZr(MoO4)6 (x = 0; 0.1; 0.2; 1; 2) molybdates 新型 Tl5-xKxLuZr(MoO4)6 (x = 0; 0.1; 0.2; 1; 2) 钼酸盐的合成及其结构、热学和电学特性研究

IF 3.4 3区化学

Solid State Sciences Pub Date : 2024-10-17 DOI: 10.1016/j.solidstatesciences.2024.107725

Victoria G. Grossman , Maxim S. Molokeev , Bair G. Bazarov

{"title":"Synthesis and investigation of the structure, thermal and electrical properties of new Tl5-xKxLuZr(MoO4)6 (x = 0; 0.1; 0.2; 1; 2) molybdates","authors":"Victoria G. Grossman , Maxim S. Molokeev , Bair G. Bazarov","doi":"10.1016/j.solidstatesciences.2024.107725","DOIUrl":"10.1016/j.solidstatesciences.2024.107725","url":null,"abstract":"<div><div>The traditional solid-state synthesizing method was employed to prepare Tl5-xKxLuZr(MoO4)6 (x = 0; 0.1; 0.2; 1; 2) ceramics. Structural characterization was performed through the Rietveld method on the X-ray powder diffraction data. The unit cell parameters are defined for Tl5-xKxLuZr(MoO4)6 (x = 0; 0.1; 0.2; 1; 2). Impedance spectra were measured at temperatures ranging from 300 to 800 K, covering a frequency range of 1 Hz to 1 MHz. The results show that the electrical conductivity decreases with an incrementing in the x value in the range of x = 0.1–2.0. Tl4.9K0.1LuZr(MoO4)6 has the best ionic conductivity of this series of molybdates (1.31 × 10−3 S cm−1), and Tl5LuZr(MoO4)6 has the lowest conductivity (5.51 × 10−4 S cm−1). Activation energy was found out to decrease from 1.32 eV for Tl5LuZr(MoO4)6 to 0.92 eV for Tl4.9K0.1LuZr(MoO4)6.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"157 ","pages":"Article 107725"},"PeriodicalIF":3.4,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142527505","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}

引用次数: 0

First TPymT-Ln complexes (TPymT = 2,4,6-Tris(2-pyrimidyl)-1,3,5-triazine; Ln = Eu, Gd, Tb, Dy): Solvothermal synthesis, structure, magnetic and photoluminescent properties 首个 TPymT-Ln 复合物（TPymT = 2,4,6-三(2-嘧啶基)-1,3,5-三嗪；Ln = Eu、Gd、Tb、Dy）：溶热合成、结构、磁性和光致发光特性

IF 3.4 3区化学

Solid State Sciences Pub Date : 2024-10-16 DOI: 10.1016/j.solidstatesciences.2024.107723

Burak Ay , Rina Takano , Takayuki Ishida

{"title":"First TPymT-Ln complexes (TPymT = 2,4,6-Tris(2-pyrimidyl)-1,3,5-triazine; Ln = Eu, Gd, Tb, Dy): Solvothermal synthesis, structure, magnetic and photoluminescent properties","authors":"Burak Ay , Rina Takano , Takayuki Ishida","doi":"10.1016/j.solidstatesciences.2024.107723","DOIUrl":"10.1016/j.solidstatesciences.2024.107723","url":null,"abstract":"<div><div>Four novel mononuclear lanthanide complexes, [Ln(TPymT)(NO3)3(H2O)2] (Ln: Eu3+ (1), Gd3+ (2), Tb3+ (3) and Dy3+ (4)), have been solvothermally synthesized using multidentate 2,4,6-tris(2-pyrimidyl)-1,3,5-triazine (TPymT). Compounds 1–3 have been characterized by means of elemental analysis, FT-IR, and single-crystal/powder X-ray diffraction analysis. Compound 4 was structurally characterized. The Ln3+ ion in 1–4 is ten-coordinated, where TPymT serves as an N3 donor in an isostructural series. The alternating-current magnetic studies showed frequency dependence below ca. 10 K for 3, as an indication of a single-ion magnet. The activation energy for the magnetization reorientation was estimated as Ueff/kB = 95(9) K after applying a dc bias field 2000 Oe for 3. The photoluminescent studies clarified that 1 and 3 behaved as red and green light emitters with quantum yields as high as 17 and 39 %, respectively. The TD-DFT calculation supports the energy level scheme of ground and excited states of TPymT together with the reference compound 4′-phenyl-2,2’:6′,2″-terpyridine. The present work suggests a broad chance and motivation to apply TPymT to the field of 4f coordination chemistry.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"157 ","pages":"Article 107723"},"PeriodicalIF":3.4,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142527506","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}

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Skutterudites as sustainable thermoelectric material- A critical review 作为可持续热电材料的沸石--重要综述

IF 3.4 3区化学

Solid State Sciences Pub Date : 2024-10-10 DOI: 10.1016/j.solidstatesciences.2024.107721

Klinton Brito K , Shobana Priyanka D , Srinivasan M , Sudharsan J B , Fujiwara K , Ramasamy P

引用次数: 0

Structure and physical properties of modified Ti2MnAl compound – Ti2Fe0.5Cr0.5Al and Ti2MnAl0.5In0.5 case 改性 Ti2MnAl 化合物 - Ti2Fe0.5Cr0.5Al 和 Ti2MnAl0.5In0.5 的结构和物理性质

IF 3.4 3区化学

Solid State Sciences Pub Date : 2024-10-10 DOI: 10.1016/j.solidstatesciences.2024.107720

Jerzy Goraus , Wojciech Gumulak , Jacek Czerniewski , Marcin Fijałkowski , Jerzy Kubacki , Ondrej Zivotsky

{"title":"Structure and physical properties of modified Ti2MnAl compound – Ti2Fe0.5Cr0.5Al and Ti2MnAl0.5In0.5 case","authors":"Jerzy Goraus , Wojciech Gumulak , Jacek Czerniewski , Marcin Fijałkowski , Jerzy Kubacki , Ondrej Zivotsky","doi":"10.1016/j.solidstatesciences.2024.107720","DOIUrl":"10.1016/j.solidstatesciences.2024.107720","url":null,"abstract":"<div><div>Ti2MnAl was believed to be Spin Gapless Semiconducting (SGS) material, but this state can be achieved only in an inverted variant of Heusler structure. This specific structure is not realized under normal conditions, however, earlier reports suggest that substituting Al by In or Sn should make it possible. This was the motivation for studying the structural and physical properties of Ti2MnAl0.5In0.5 alloy in this paper. We also studied isoelectronic Ti2Fe0.5Cr0.5Al material, as it is well known that properties of Heusler compounds strongly depend on the valence electron count. We report a combined experimental and theoretical study, where we synthesized substituted variants and measured their diffraction patterns. Additionally we performed ab initio calculations using several methods to study the stability of the resulting compounds. We also examined the impact of disorder within Coherent Potential Approximation. Experimental XPS (X-ray Photoemission Spectroscopy) spectra, magnetic susceptibility and electrical resistivity are also discussed.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"157 ","pages":"Article 107720"},"PeriodicalIF":3.4,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142432012","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}

引用次数: 0

Growth mechanism and SERS effect of Ag nanowire arrays prepared by solid-state ionics method 固态离子法制备的银纳米线阵列的生长机理和 SERS 效应

IF 3.4 3区化学

Solid State Sciences Pub Date : 2024-10-09 DOI: 10.1016/j.solidstatesciences.2024.107718

Dapeng Xu, Yarui Liu, Song Zhang, Zixiong Wang, Wei Yang, Qiaoqin Guo, Jian Chen

{"title":"Growth mechanism and SERS effect of Ag nanowire arrays prepared by solid-state ionics method","authors":"Dapeng Xu, Yarui Liu, Song Zhang, Zixiong Wang, Wei Yang, Qiaoqin Guo, Jian Chen","doi":"10.1016/j.solidstatesciences.2024.107718","DOIUrl":"10.1016/j.solidstatesciences.2024.107718","url":null,"abstract":"<div><div>Solid-state ionic method has attracted more and more attention due to its simple operation and controllable preparation, but its growth mechanism is still uncertain. In this work, Ag nanowire (Ag NW) arrays prepared by solid-state ionics method at 5 μA impressed currents using fast ionic conductor RbAg4I5 films and different metal electrodes were reported. The conduction mode of Ag+ in RbAg4I5 films, the growth mechanism of Ag NW arrays prepared by solid-state ionics method and the effect of microscopic morphology on surface-enhance Raman scattering (SERS) performance were investigated. The results show that Ag nanoparticles (Ag NPs) with diameters from 40 nm to 70 nm were attached to the surface of Ag NW arrays with diameters of 80–150 nm prepared with different metal electrodes, which lead to Ag NW arrays have high surface roughness. The conduction velocity and stability of Ag+ in RbAg4I5 films are closely related to the morphology of Ag NW arrays. The irregular electrode interface and apical growth advantage resulted in the fractal dimension of Ag NW arrays prepared with Ag electrodes is 1.69 due to macroscopic dendritic structure. Ag NW arrays have excellent SERS performance due to the many Ag NPs attached to the surface of the closely aligned Ag NWs, the limit of detection (LOD) for Basic Fuchsin (BF) and Crystal Violet (CV) detected by Ag NW arrays SERS substrates prepared with Ag electrodes are as low as 10−11and 10−14mol/L, respectively. This paper provides a reference for the preparation method of metal nanostructures, Ag NW arrays have good potential for application in the field of trace analysis.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"157 ","pages":"Article 107718"},"PeriodicalIF":3.4,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142424666","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}

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La2O2MQ2 phases: Stability and synthetic challenges La2O2MQ2 相：稳定性与合成挑战

IF 3.4 3区化学

Solid State Sciences Pub Date : 2024-10-09 DOI: 10.1016/j.solidstatesciences.2024.107719

Glen R. Hebberd, Budhika G. Mendis, Leon Bowen, Stewart J. Clark, Emma E. McCabe

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