Solid State Sciences最新文献

{"title":"Effect of proton-exchange reactions on the ionic conductivity of Li29-3xAlxZr9Nb3O40, an ordered rock-salt oxide","authors":"Satoshi Sugiyanagi,&nbsp;Yasuaki Matsuda","doi":"10.1016/j.solidstatesciences.2024.107810","DOIUrl":"10.1016/j.solidstatesciences.2024.107810","url":null,"abstract":"<div><div>Li_{29-3<em>x</em>}Al_<em>x</em>Zr₉Nb₃O₄₀, an ordered rock-salt oxide, was synthesized by a two-step solid-state method, and sintered bodies with relative densities of approximately 90 % were obtained. The sample with <em>x</em> = 0 exhibited a conductivity of 1.5 × 10⁻⁴ Scm⁻¹ at 500 °C, with an activation energy of 0.99 eV, and lithium conductivity showed no improvement by Al³⁺ substitution. After exposing Li₂₉Zr₉Nb₃O₄₀ to a humidified atmosphere, its surface became strongly alkaline and the lattice constant changed, indicating the formation of lithium hydroxide on the surface by the exchange reaction between Li⁺ and H⁺ in water vapor. The sample exposed to a humidified atmosphere for 1 week exhibited a high conductivity of 4.6 × 10⁻³ Scm⁻¹ at 25 °C, which decreased to 1.75 × 10⁻⁶ Scm⁻¹ at 150 °C. Our results indicate the occurrence of fast ion diffusion at the surface of the ordered rock-salt phase.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"160 ","pages":"Article 107810"},"PeriodicalIF":3.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143098236","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":"Boron nitride nanotubes embedded nylon-6 nanofibers composites for space applications","authors":"Numan Yanar ,&nbsp;Arni G. Pornea ,&nbsp;Duy Khoe Dinh ,&nbsp;Changho Kim ,&nbsp;Eunkwang Park ,&nbsp;Jae-Hak Choi ,&nbsp;Jaewoo Kim","doi":"10.1016/j.solidstatesciences.2024.107819","DOIUrl":"10.1016/j.solidstatesciences.2024.107819","url":null,"abstract":"<div><div>In this article, the enhancement of thermal and mechanical properties, and the moisture resistance of nylon-6 nanofiber fabrics for the space application such as the astronaut suits by compounding boron nitride nanotubes (BNNT) is investigated. For the proposed application, BNNT are first surface modified through the wrapping of nanotubes with Sodium Dodecyl Sulfate (SDS) for enabling the dispersion of BNNT in nylon-6 matrix, then the nylon-6 nanofiber fabrics compounded with SDS modified 2.5 wt% (BNNT2.5), 5.0 wt% (BNNT5.0), 7.5 wt% (BNNT7.5), 10.0 wt% (BNNT10.0) of BNNT are fabricated through electrospinning. Among these samples, BNNT5.0 shows the ultimate performance with its mechanical performance by having the tensile strength of 12.41 MPa and 35 % elongation performance which is 340 % higher tensile strength than neat nylon-6 sample and 152 % higher tensile strength than neat nylon-6 sample having SDS additive (Neat). BNNT5.0 also shows higher water contact angle (86.56°) than Neat (71.38°) proving the enhanced moisture resistance. In terms of thermal performance, BNNT5.0 shows 32 % enhanced thermal conductivity (0.434 W/mK) compared to Neat (0.296 W/mK), and a superior thermal stability showing shrinking resistance at elevated temperatures as high as 200 °C while Neat melts down at same temperature. Finally, BNNT5.0 also shows rapid cooling performance which two times higher than Neat according to the infrared imaging for cooling from 60 °C to room temperature. Consequently, we expect BNNT may provide lighter and robust feasibility for the conventional nylon-6 nanofibers to be used for the astronaut suits.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"160 ","pages":"Article 107819"},"PeriodicalIF":3.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143098788","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":"Formation mechanism and magnetic properties of ferrite composite tubular microstructures","authors":"Yaqi Jiang ,&nbsp;Jiaqi Feng ,&nbsp;Guoqing Liu ,&nbsp;Zixuan Chen ,&nbsp;Qin Xu ,&nbsp;Peipei Lu ,&nbsp;Junmeng Zhang ,&nbsp;Guangyu Wen ,&nbsp;Lihu Liu ,&nbsp;Huiyuan Sun","doi":"10.1016/j.solidstatesciences.2025.107852","DOIUrl":"10.1016/j.solidstatesciences.2025.107852","url":null,"abstract":"<div><div>Changes in the morphology of FeNi alloy nanowires during annealing at different temperatures were studied by transmission electron microscopy. In this work, kinds of morphologies including composite oxide wire/tube, wire@tube (or core-shell) and pure tubular microstructures were obtained successfully. The structure can be tuned by changing the annealing temperature. The formation mechanism was discussed in detail based on ion diffusion and Kirkendal effect. The as-prepared and annealed samples were characterized by the X-ray diffraction (XRD), transmission electron microscopy (TEM) and EDS mapping, respectively. The material composition of the nanostructures with different morphologies was further determined, and the cation diffusion mechanism was deduced. The result of magnetic measurement showed the coercivity and squareness of the nanostructures perpendicular to the AAO film surface decrease with the increase of annealing temperature, and the hysteresis loop of the sample annealed at high temperature is in a wasp-waist shape, which is consistent with the result that the sample contains multiple magnetic phases. Obviously, the present ferrite heterogeneous composite microstructures have potential application as a multifunctional magnetic material.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"161 ","pages":"Article 107852"},"PeriodicalIF":3.4,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143350313","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":"Evaluating chemical states in a single microcrystal of chromium boride with the micro-focused ion and quantum beams","authors":"Yanze Guan ,&nbsp;Xiaoni Zhang ,&nbsp;Masashige Miyamoto ,&nbsp;Yuki Tsujikawa ,&nbsp;Kunio Yubuta ,&nbsp;Masafumi Horio ,&nbsp;Hironari Isshiki ,&nbsp;Jun-ichi Yamaura ,&nbsp;Tadashi Abukawa ,&nbsp;Fumio Komori ,&nbsp;Iwao Matsuda","doi":"10.1016/j.solidstatesciences.2025.107838","DOIUrl":"10.1016/j.solidstatesciences.2025.107838","url":null,"abstract":"<div><div>We present a series of procedures that prepared and analyzed chromium borides (Cr-B) microcrystals using a combination of micro-focused ion and quantum beam techniques. The chemical state analyses were carried out using micro-photoemission spectroscopy and structural analyses were performed using micro-reflection high-energy electron diffraction and single-crystal X-ray diffraction. This approach successfully identified the existence of CrB<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span> and Cr<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>B<span><math><msub><mrow></mrow><mrow><mn>3</mn></mrow></msub></math></span> phases in a Cr-B microcrystal and also provided detailed chemical state evaluation of Cr<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>B<span><math><msub><mrow></mrow><mrow><mn>3</mn></mrow></msub></math></span> phase. Our integration of these techniques enabled to distinguish and evaluate micro-scale phases within complex materials, identifying different phases or unexpected secondary products of microcrystal.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"161 ","pages":"Article 107838"},"PeriodicalIF":3.4,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143210962","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":"Particle interactions in SrFe12O19/NiFe2O4 magnetic composites: Effect of composition ratios and nickel ferrite size","authors":"V. Bilovol ,&nbsp;M. Sikora ,&nbsp;A. Quesada ,&nbsp;K. Berent ,&nbsp;M. Gajewska","doi":"10.1016/j.solidstatesciences.2025.107839","DOIUrl":"10.1016/j.solidstatesciences.2025.107839","url":null,"abstract":"<div><div>The magnetic interactions in SrFe₁₂O₁₉/NiFe₂O₄ composites have been studied using the component fractions (90/10, 85/15, 80/20, 75/25 wt%) and the size of magnetically soft nickel ferrite particles as variables. It was observed that the greater the amount of nickel ferrite (NFO) in the composites, the stronger the intensity of the dipolar interactions. Reducing the NFO particle size (from 190 nm to about 25 nm) resulted in an improvement in the M_s and M_r values of the composite, despite the fact that the M_s of NFO is smaller than the M_s of the hexaferrite ancestor (SrM). This fact is attributed to the diffusion of Ni atoms into the SrM lattice as a result of the heat treatment following the mechanosynthesis of the two ferrites, the method of their fine mixing. An increase in the net magnetization of the composite can be explained by the substitution of Fe³⁺ ions by Ni²⁺ ions in the 4f₁ and/or 4f₂ positions of the SrM lattice. Such an exclusive exchange takes place in the complex system only when small nickel ferrite particles are present in the composite. That is, their reactivity is increased compared to larger ones.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"161 ","pages":"Article 107839"},"PeriodicalIF":3.4,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143161578","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":"Investigation of vacuum cryodeposited water films capturing carbon monoxide on an optical surface","authors":"E. Korshikov,&nbsp;A. Aldiyarov,&nbsp;A. Nurmukan,&nbsp;O. Vorobyova,&nbsp;D. Sokolov","doi":"10.1016/j.solidstatesciences.2025.107830","DOIUrl":"10.1016/j.solidstatesciences.2025.107830","url":null,"abstract":"<div><div>In recent years, many researchers have focused on studying interstellar dust and astrophysical ices. These objects are particularly significant because they are key components of the interstellar medium and play a decisive role in the formation of stars and planets. Studies of the properties of vacuum deposited films have expanded our understanding of the processes involved in the formation of clathrates and hydrates in CO and water mixtures, their physical characteristics, and how specific features emerge based on the method of formation. Capturing and storing CO molecules is considered one of the most promising strategies for combating the potential environmental disaster of global warming. The aim of this study was to investigate the IR spectra of thin films composed of a mixture of CO and water created via vapor deposition within the temperature range 11–180 K. Through spectral analysis, the formation of hydrates and clathrates, which are phenomena of interest in modern condensed matter physics, was examined. The research utilized IR spectroscopy methods to study the resulting thin films. During the experiments, CO and gas hydrate structures were formed within the mixture. In these cases, the sublimation temperature of the CO molecules integrated into the hydrate structures was found to be significantly higher than the equilibrium values, whereas the unbound CO molecules sublimated earlier. The results obtained provide further insights into the formation processes of clathrates and hydrates in CO and water mixtures, their physical properties, and the emergence of characteristics depending on the method of formation.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"161 ","pages":"Article 107830"},"PeriodicalIF":3.4,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143161577","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":"Hectoborides: Crystal structure of NdB65 and ThB60","authors":"Gerda Rogl ,&nbsp;Vilma Bursikova ,&nbsp;Jiri Bursik ,&nbsp;Gerald Giester ,&nbsp;Henri Noel ,&nbsp;Peter Rogl","doi":"10.1016/j.solidstatesciences.2025.107826","DOIUrl":"10.1016/j.solidstatesciences.2025.107826","url":null,"abstract":"<div><div>The crystal structures of the \"hectoborides\" NdB₆₅ and ThB₆₀ have been elucidated from single crystal X-ray structure determination supported by TEM-SAED analyses. Both compounds crystallize in a face-centred cubic lattice with space group <em>Fm</em><span><math><mrow><mover><mn>3</mn><mo>‾</mo></mover></mrow></math></span><em>c</em> (No. 226) (<em>a</em>_NdB65 = 2.35385(4) nm, R_F = 0.0491; <em>a</em>_ThB60 = 2.35170(5) nm, R_F = 0.0489) isotypic with the aristo-type of hectoborides, namely YB₆₆. With respect to the structure type of YB₆₆ in its original version by Richards and Kaspar [2], we observe for both compounds, NdB₆₅ and ThB₆₀, a split position (total occupancies ˜0.5) for the metal atoms in site 48<em>f</em> as well as a second metal atom position in site 8<em>a</em> at a reduced occupancy; furthermore, we only arrive at seven B-sites 192<em>j</em> and 5 B-sites 96<em>i</em>, but did not find a B-atom (B13) in site 64<em>g</em> (x = 0.23, x, x). In contrast to the earlier structure determination of ThB₆₆(O) [11] our WDX analysis did not present any hints for oxygen contamination, therefore site 8<em>a</em> (¼,¼,¼) hosts a Th atom at low occupancy of 0.12(1) Th instead. Similarly, the 8<em>a</em> site is also partially occupied by 0.04(1) Nd in NdB₆₅. Whereas the present investigation removes all doubts on the formation of NdB₆₅ (YB₆₆-type), our analysis did not reveal the formation of isotypic \"PrB_˜66\". On the basis of our SEM data, revised phase relations for the three systems Nd-B, Pr-B and Th-B have been designed for the boron-rich part (&gt;85 at.% B).</div><div>Whereas at room temperature hardness of ThB₆₀ (23.8 GPa) and for NdB₆₅ (24.3 GPa) fit well among hardness data for the corresponding rare earths hectoborides, the by-product material ThB₉₉ (βB-type) with 42 GPa is a superhard material.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"162 ","pages":"Article 107826"},"PeriodicalIF":3.4,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143445394","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":"Self-assembly of polyoxometalate-based metal-organic framework with trefoil sign structural feature as efficient anode for lithium ion batteries","authors":"Lizhou Wu ,&nbsp;Guanghui Yuan ,&nbsp;Fangxiong Gao ,&nbsp;Xin Qiang ,&nbsp;Junfeng Hui ,&nbsp;Bin Liu","doi":"10.1016/j.solidstatesciences.2024.107774","DOIUrl":"10.1016/j.solidstatesciences.2024.107774","url":null,"abstract":"<div><div>To extend the practical applications of polyoxometalates (POMs) based metal–organic frameworks (POMOFs) in the most cut-ting-edge (lithium ion batteries) LIBs, a new crystalline POMOFs, [Ag₆(H₂trz)₆]·[H₄SiW₁₂O₄₀]·6H₂O (SiW₁₂-Ag-trz), was successfully synthesized and well characterized in the work. Crystal analysis reveals that Keggin-typed POMs [H₄SiW₁₂O₄₀] (SiW₁₂) are inserted into the Ag-trz helical chain to construct 3D POMOFs with open pore channels with trefoil sign structural feature, in which SiW₁₂ polyoxoanion exhibiting the most diverse coordination modes in the reported crystalline POMOFs, to the best our knowledge. Because the pore channels facilitate the storage and release of lithium ions, and the SiW₁₂ polyoxoanion growing on the framework serves as an excellent electron sponge, crystalline SiW₁₂-Ag-trz as an anode material for lithium-ion batteries (LIBs) exhibits highly reversible capacity and rate capability. Moreover, to illustrate the lithium storage, the impedance spectra and cyclic voltammetry (CV) with different scan rates during the first and 50th charge process were studied in details.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"159 ","pages":"Article 107774"},"PeriodicalIF":3.4,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143147208","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":"Enhanced thermoelectric properties in Bi2Sr2-xBaxCo2Oy via doping and texturing for integration in more efficient thermoelectric generators","authors":"Pınar Özkurt ,&nbsp;M.A. Madre ,&nbsp;Berdan Özkurt ,&nbsp;M.A. Torres ,&nbsp;A. Sotelo","doi":"10.1016/j.solidstatesciences.2024.107772","DOIUrl":"10.1016/j.solidstatesciences.2024.107772","url":null,"abstract":"<div><div>Bi₂Sr_2-xBa_xCo₂O_y (0 ≤ x ≤ 0.15) thermoelectric samples have been sintered, and textured through the laser floating zone process using a Nd:YAG laser. Powder XRD studies showed that the thermoelectric phase is the major one in all cases, with higher amount of secondary phases in the textured ones due to their incongruent melting. Microstructural characterization revealed a drastic microstructural modification in the textured samples, when compared to the sintered ones, producing much larger and well oriented grains along the growth direction. These characteristics led to lower electrical resistivity in textured samples, reaching the minimum at 650 °C (14.8 mΩ cm) in 0.125Ba-doped samples, which is lower than those typically reported in this system. On the other hand, no significant variation in Seebeck coefficient has been found between the samples. This behaviour is associated to the isovalent doping which does not modify the charge carrier concentration in the material, and the highest values at 650 °C (166 μV/K) are in the order of the reported in the literature. As a consequence, power factor values are mainly driven by the electrical resistivity values, leading to the highest values at 650 °C in 0.125Ba-doped textured samples (0.19 mW/K²m) due to their lowest resistivity. These values are higher than the reported for textured materials and in the order of the best reported for this compound in bulk form. All these properties, together with the possibility of the direct integration of these compounds in thermoelectric modules, make them very attractive for practical applications ensuring access to affordable, reliable, and sustainable energy for all.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"159 ","pages":"Article 107772"},"PeriodicalIF":3.4,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143147207","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":"Efficient photocatalytic elimination of antibiotics over metal-free CNx/PANI/graphene sponge system","authors":"Beibei Zhu ,&nbsp;Jie Zhou ,&nbsp;Lubin Ni ,&nbsp;Guowang Diao","doi":"10.1016/j.solidstatesciences.2024.107781","DOIUrl":"10.1016/j.solidstatesciences.2024.107781","url":null,"abstract":"<div><div>Purification of antibiotic wastewater has been recognized as one of the most important issues in the environmental community, for which, developing the metal-free photocatalyst system is an environment-friendly and economic-feasible way. Herein, we designed the metal-free C₃N_x/PANI photocatalyst wrapped around the graphene sponge (CPG) for coupled antibiotic wastewater adsorption and purification. The properties of CPG and their relation with purification performance were investigated using various characterization techniques and photocatalysis evaluation. As a result, we found that the advanced porous structure of graphene sponge can favor wastewater adsorption and photon utilization efficiency due to the crosslink channels with a higher crosslinking density. Meanwhile, the layered structure of CN_x effectively facilitates the transfer of charge carriers while the PANI exhibits high-capacity visible light adsorption. Consequently, after optimization, CPG8 exhibited better photocatalytic activity with a sulfamethazine degradability of 10 mg/L within 40 min. The novel approach and new insights obtained in this work give important guidance for designing advanced photocatalytic systems used in wastewater purification.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"159 ","pages":"Article 107781"},"PeriodicalIF":3.4,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142757350","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}