Solid State Sciences最新文献

{"title":"Seed-assisted synthesis of ZSM-5 nanozeolites with high catalytic activities for cracking oleic acid to light olefins and light aromatics","authors":"Yanlin Wang ,&nbsp;Hao Liu ,&nbsp;Haoyu Liu ,&nbsp;Hong Yuan","doi":"10.1016/j.solidstatesciences.2025.107912","DOIUrl":"10.1016/j.solidstatesciences.2025.107912","url":null,"abstract":"<div><div>A series of nanosized ZSM-5 (SNZSM-5) zeolites has been synthesized by the seed-assisted method using silicalite-1 as seeds. Catalytic cracking of oleic acid to produce light olefins and light aromatics using SNZSM-5 as the catalyst was performed using a laboratory-scale fixed-bed reactor. The effects of the crystallization time and Si/Al molar ratio on the morphology and multilamellar structure of SNZSM-5 were studied to reveal how these properties affect the catalytic performance. Scanning electron microscopy, transmission electron microscopy, X-ray diffraction, temperature-programmed desorption of ammonia, and N₂ physisorption and desorption were performed to characterize the morphological features, acidities, and pore structures of the SNZSM-5 nanozeolites. Compared with conventional ZSM-5 zeolite, the SNZSM-5 nanozeolites possessed smaller particle diameters (90–450 nm), and they thus contained more intercrystalline voids. The Brunauer–Emmett–Teller surface areas (211–309 m² g⁻¹) and mesopore volumes (0.08–0.27 cm³ g⁻¹) were both higher than those of ZSM-5 zeolite. Moreover, owing to the larger specific surface areas of the nanocrystals, more acidic sites can be exposed. Therefore, the SNZSM-5 nanozeolites showed higher catalytic activity and stability than conventional ZSM-5. The catalytic activity could be sustained for up to 35 h. Under the conditions of a reaction temperature of 500 °C, an oleic acid flow rate of 0.04 mL min⁻¹, and a nitrogen flow rate of 30 mL min⁻¹, the SNZSM-5 nanozeolite prepared with a Si/Al molar ratio of 16 showed the highest catalytic activity, producing up to 67 % yield of light olefins and showing 14.5 % selectivity for light aromatics.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"163 ","pages":"Article 107912"},"PeriodicalIF":3.4,"publicationDate":"2025-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143684639","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":"Fabrication of Sn-doped In2O3 nanoparticles anchored on g-C3N4 nanosheets for enhanced degradation of Rhodamine B","authors":"Yaqian Zhang ,&nbsp;Yuli Song ,&nbsp;Jin Xu ,&nbsp;Xinyu Ge ,&nbsp;Xianguo Wu ,&nbsp;Yalin Lan ,&nbsp;Yanan Zhao ,&nbsp;Dongmao Yan","doi":"10.1016/j.solidstatesciences.2025.107915","DOIUrl":"10.1016/j.solidstatesciences.2025.107915","url":null,"abstract":"<div><div>The application of visible light for the degradation of organic pollutants in wastewater represents a highly effective strategy. In this study, a series of Sn-In₂O₃/g-C₃N₄ composites were synthesized using a simple thermal polymerization method. The composites demonstrated a significant enhancement in photocatalytic properties compared to those of g-C₃N₄ or Sn-In₂O₃ alone. The optimal degradation efficiency was achieved with a RhB removal rate of 96.5 % under 150min of illumination. Furthermore, the photocatalyst maintained a consistent RhB degradation rate of 90.3 % after 5 cycles. ESR and radical scavenging experiments indicated that ·OH and ·O₂⁻ are the primary active species responsible for the degradation process. This study presents an innovative design approach for the cost-effective synthesis of highly efficient photocatalysts aimed at the degradation of organic matter.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"163 ","pages":"Article 107915"},"PeriodicalIF":3.4,"publicationDate":"2025-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143777549","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":"A new transition metal borate, Co6(B24O39(OH)6(H2O)6·2.21H2O, synthesized via a mild hydrothermal synthesis","authors":"Alevtina Maksimova ,&nbsp;Patrick Belt ,&nbsp;Nilah Whitfield ,&nbsp;Mark D. Smith ,&nbsp;Gopabandhu Panigrahi ,&nbsp;Gregory Morrison ,&nbsp;Hans-Conrad zur Loye","doi":"10.1016/j.solidstatesciences.2025.107914","DOIUrl":"10.1016/j.solidstatesciences.2025.107914","url":null,"abstract":"<div><div>A new transition metal borate hydrate, Co₆B₂₄O₃₉(OH)₆(H₂O)₆·2.21H₂O, was synthesized <em>via</em> a mild hydrothermal method using boric acid as the melt. The compound crystallizes in the trigonal space group <em>P</em> <span><math><mrow><mover><mn>3</mn><mo>‾</mo></mover></mrow></math></span> with lattice parameters <em>a</em> = <em>b</em> = 13.17840(10) Å, <em>c</em> = 12.3287(2) Å, and a unit cell volume of 1854.27(4) ų (<em>Z</em> = 2). This borate hydrate crystallizes in a new structure type comprised of layers containing [BO₃] trigonal planar units and [BO₄] tetrahedra that are linked by CoO₆ and Co(OH)₂(H₂O)₄ octahedra <em>via</em> corner-sharing. The crystalline phase was confirmed by powder X-ray diffraction, while single-crystal X-ray diffraction was used to determine the structure. The structure contains eight crystallographically independent boron atoms that connect to each other and form a Fundamental Building Block (FBB) consisting of two triborate rings [B₃O₇OH] and two [BO₃] trigonal planar units connected <em>via</em> corner-sharing. This FBB can be written as 8: <span><math><mrow><mi>∞</mi></mrow></math></span>²[2(3:Δ + 2T) + 2(1:Δ)]. Optical and magnetic measurements, as well as thermal analyss, were carried out to characterize the new borate.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"163 ","pages":"Article 107914"},"PeriodicalIF":3.4,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143734829","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":"Photothermal catalytic activation of peroxydisulfate with porphyrin-based metal-organic framework for removal of organic pollutants","authors":"Cheng-Min Wang ,&nbsp;Qi-Ming Zhang ,&nbsp;Dong-En Zhang ,&nbsp;Xin-Xin Lu ,&nbsp;Guang-Hui Miao ,&nbsp;Yu-Hui Luo","doi":"10.1016/j.solidstatesciences.2025.107913","DOIUrl":"10.1016/j.solidstatesciences.2025.107913","url":null,"abstract":"<div><div>Metal-organic frameworks (MOFs) have been proved to be one of the most promising photocatalysts for removing organic pollutants. However, the disadvantages, such as fast recombination of photogenerated carrier and low light utilization, significantly hinder the practical applications of MOFs. In this paper, porphyrin groups with wide light absorption range and high light-to-thermal conversion efficiency were introduced into MOFs to enhance their photocatalytic performance. These porphyrin-based MOFs can convert red and near-infrared light to heat to improve the utilization of solar energy. In particular, PCN-224-Co, which has a large specific surface area and high stability, was selected, as a proof-of-concept, to investigate the effect of photothermal effect in peroxydisulfate (PDS) activation. The results showed that PCN-224-Co could remove 92 % tetracycline hydrochloride (TC) in 15 min under photothermal condition, giving a high-rate constant of 0.11 min⁻¹, which is much higher than that obtained without photothermal effect. PCN-224-Co/PDS system is capable of removing pollutants from different water bodies, indicating that the system has excellent prospects for practical application. In addition, the catalytic mechanism was also investigated by both experimental methods and theoretical simulations.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"163 ","pages":"Article 107913"},"PeriodicalIF":3.4,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143684637","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":"Thermodynamics and crystallography of hard light-element boron-rich compounds by in situ X-ray diffraction under high-pressure, high-temperature conditions","authors":"Alexandre Courac ,&nbsp;Vladimir Turkevich ,&nbsp;Yann Le Godec","doi":"10.1016/j.solidstatesciences.2025.107909","DOIUrl":"10.1016/j.solidstatesciences.2025.107909","url":null,"abstract":"<div><div>Here we review the available experimental and theoretical data on phase transformations and thermodynamical properties of boron compounds that can be obtained by in situ methods at high-pressure and high-temperature (HPHT) conditions. The thermodynamic analysis allowed to establish the optimized sets of thermodynamic values and mechanical properties for boron allotropes and compounds such as boron suboxide B₆O, boron subnitride B₁₃N₂, and boron carbide.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"163 ","pages":"Article 107909"},"PeriodicalIF":3.4,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143703908","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":"Effect of self partial crystallization with heavy cation addition on radiation shielding properties","authors":"Cansu Karakaya,&nbsp;Ediz Ercenk,&nbsp;Şenol Yilmaz","doi":"10.1016/j.solidstatesciences.2025.107911","DOIUrl":"10.1016/j.solidstatesciences.2025.107911","url":null,"abstract":"<div><div>This study produced glass materials by adding La₂O₃ to Blast Furnace Slag in specific proportions. Partial crystallization was attempted to be achieved by a composition effect. A partial crystallization effect is provided by composition and Spinodal phase separation. X-ray diffraction analysis (XRD), Raman analysis, and differential thermal analysis (DTA) tests were performed on the produced samples. An optical microscope was used to observe phase separation. Mass attenuation coefficient (MAC), linear attenuation coefficient (LAC), mean free path (MFP), values of half-value layers (HVL), and tenth-value layers (TVL) measurements were made experimentally for radiation shielding properties. Experimental values were checked with theoretical calculations, and experimental/theoretical results were very close. LAC values were determined in the range of 0.1537–0.2607 cm⁻¹ depending on energy and composition. While the values decreased with photon energy, they increased with La₂O₃ addition. HVL values were measured as 2.6588–4.5109 cm depending on the energy and composition, these values increased with energy and decreased with La₂O₃ addition. Phase separation controlled partial crystallization effect was achieved by specific La₂O₃ addition. It was observed that the La₂O₃ effect improved shielding properties, and partial crystallization provided positive effects, especially in LAC values.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"163 ","pages":"Article 107911"},"PeriodicalIF":3.4,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716184","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":"Lattice expansion due to hydrogen absorption into β-rhombohedral boron","authors":"Takanobu Hiroto ,&nbsp;Hossein Sepehri-Amin ,&nbsp;Naoki Uemura ,&nbsp;Naoya Miyauchi ,&nbsp;Wataru Hayami ,&nbsp;Tadakatsu Ohkubo ,&nbsp;Tadashi Ogitsu ,&nbsp;Kohei Soga ,&nbsp;Kaoru Kimura","doi":"10.1016/j.solidstatesciences.2025.107907","DOIUrl":"10.1016/j.solidstatesciences.2025.107907","url":null,"abstract":"<div><div>β-Rhombohedral boron (<em>β</em>-boron) represents one of the most popular and important allotropic forms of elemental boron. The unit cell of β-boron crystal consists of B_106.6 with a complicated and relatively open structure. We have previously reported the abrupt lattice expansion and shrinkage of <em>β</em>-boron crystal by thermal treatment above 700 K and photoirradiation at room temperature. Our recent studies, combined with X-ray diffraction and atom probe tomography experiments, suggest that the lattice expansion and shrinkage are related to the absorption and release of hydrogen into the structure. The results lead us to a new application of <em>β</em>-boron as a photo-switchable hydrogen storage material.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"163 ","pages":"Article 107907"},"PeriodicalIF":3.4,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143684640","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":"Syntheses, crystal structures, and physical properties of three new chalcospinels: Ag2Sc2Sn2S8, Cu1.9(1)Sc1.9(1)Sn2.1(1)S8, and Cu1.4(1)Sc1.4(1)Sn2.6(1)Se8","authors":"Omair Shahid,&nbsp;Jai Prakash","doi":"10.1016/j.solidstatesciences.2025.107910","DOIUrl":"10.1016/j.solidstatesciences.2025.107910","url":null,"abstract":"<div><div>The present work describes the syntheses of three new chalcogenides, Ag₂Sc₂Sn₂S₈, Cu_1.9(1)Sc_1.9(1)Sn_2.1(1)S₈, and Cu_1.4(1)Sc_1.4(1)Sn_2.6(1)Se₈ with disordered spinel structures (space group: <em>Fd</em><span><math><mrow><mover><mn>3</mn><mo>‾</mo></mover></mrow></math></span><em>m</em>) as established from single crystal X-ray diffraction studies. As expected, the unit cell volume of the cubic Ag₂Sc₂Sn₂S₈ (<em>a</em> = 10.722(4) Å) structure is bigger than that of the Cu-containing sulfide Cu_1.9(1)Sc_1.9(1)Sn_2.1(1)S₈ (<em>a</em> = 10.4431(3) Å). Similarly, the refined <em>a</em>-lattice constant of 10.8961(10) Å for the Cu_1.4(1)Sc_1.4(1)Sn_2.6(1)Se₈ structure is longer than the sulfide Cu_1.9(1)Sc_1.9(1)Sn_2.1(1)S₈. These structures are based on cubic close packing of chalcogen atoms (S/Se) where the Sc and Sn atoms co-occupy the same octahedral sites, unlike the Cu/Ag atoms, which are distributed over the tetrahedral sites in the title structures. A phase pure polycrystalline selenide with the loaded composition of Cu_1.4Sc_1.4Sn_2.6Se₈ was prepared by a high-temperature reaction of elements at 1223 K. The polycrystalline samples with the loaded compositions of Cu_1.9Sc_1.9Sn_2.1S₈ and Ag₂Sc₂Sn₂S₈ were biphasic, consisting of the target spinel and SnS phases. The resistivity, Seebeck coefficient, and optical absorption studies show that the polycrystalline Cu_1.4Sc_1.4Sn_2.6Se₈ is an <em>n</em>-type semiconductor with a direct bandgap of 1.0(1) eV. The magnitude of the Seebeck coefficient value of the Se-sample varies from 122 μV/K (at 773 K) to 185 μV/K (at 573 K). The Se-sample shows a relatively high thermal conductivity (<em>κ</em>_<em>tot</em>) value of 1.75 Wm⁻¹K⁻¹ near room temperature, which drops to a low value of 0.77 Wm⁻¹K⁻¹ at 773 K. The biphasic samples, Cu_1.9Sc_1.9Sn_2.1S₈ and Ag₂Sc₂Sn₂S₈, also show semiconducting behavior from the resistivity and optical absorption studies.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"163 ","pages":"Article 107910"},"PeriodicalIF":3.4,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143684641","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":"Structural, thermal and electrical properties of the ceramics in the NdBaFe2/3Co2/3Cu2/3O6–δ–NdSrFe2/3Co2/3Cu2/3O6–δ system","authors":"Yana Yu Zhuravleva ,&nbsp;Andrei I. Klyndyuk ,&nbsp;Ekaterina A. Tugova ,&nbsp;Nikolai N. Gundilovich ,&nbsp;Maria V. Tomkovich","doi":"10.1016/j.solidstatesciences.2025.107906","DOIUrl":"10.1016/j.solidstatesciences.2025.107906","url":null,"abstract":"<div><div>Using ceramic method, the continuous serie of NdBa_{1–<em>x</em>}Sr_<em>x</em>Fe_2/3Co_2/3Cu_2/3O_6–δ (0.0 ≤ <em>x</em> ≤ 1.0) (NBS) solid solutions was prepared, their crystal structure, microstructure, oxygen nonstoichiometry, thermal expansion, electrical conductivity, and Seebeck coefficient were studied. It was found, that NBS compounds possessed perovskite-like structure and were <em>p</em>-type semiconductors, which lattice constants, oxygen nonstoichiometry index (δ), and Seebeck coefficient decreased, but electrical conductivity increased at substitution of barium by strontium. Near <em>x</em> ≈ 0.5 the phase transition from tetragonal phase into cubic one took place. The complex oxides with composition near this point (<em>x</em> = 0.4, 0.6) were possessed the lowest sinterability, had maximal microstrains, and minimal microhardness and values of grain sizes among the samples studied. Thermal and chemical expansion coefficients of NBS samples varied within (15.3–17.2)·10⁻⁶ K⁻¹ and (0.94–17.0)·10⁻³ respectively, and, all in all, increased by <em>x</em> rising. The largest value of electrical conductivity (σ₈₀₀ ≈ 290 S·cm⁻¹) was fixed for the NdBa_0.2Sr_0.8Fe_2/3Co_2/3Cu_2/3O_6–δ solid solution.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"163 ","pages":"Article 107906"},"PeriodicalIF":3.4,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143684638","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":"Synthesis and characterization of P-doped g-C3N4/CuBi2O4 as a new heterogeneous nanocomposite for photocatalytic reduction of nitroaromatic compounds","authors":"Elham Hosseinian,&nbsp;Ali Oji Moghanlou,&nbsp;Farshid Salimi Nanekaran,&nbsp;Behnam Khanizadeh,&nbsp;Nayer Mohammadian Tarighi","doi":"10.1016/j.solidstatesciences.2025.107897","DOIUrl":"10.1016/j.solidstatesciences.2025.107897","url":null,"abstract":"<div><div>In this research, the carbon substrate of graphitic carbon nitride was synthesized by polymerization route, and at the same time phosphorus element was successfully doped in its structure. Then CuBi₂O₄ nanoparticles were coupled and decorated on the layers of g-C₃N₄. Morphology, structural properties, and photocatalytic activity of the new heterogeneous nanocomposites (P-doped g-C₃N₄/CuBi₂O₄) were identified and evaluated using different and suitable spectroscopic and imaging methods. The synthesized nanocomposites were used as photocatalysts in the reduction of nitroaromatic compounds, which had high photocatalytic activity so that the conversion of nitrobenzene to aminobenzene (aniline) had a 100 % yield within 60 min. In the above reactions, hydrazine monohydrate was used as a hydrogen supplier. P-doped g-C₃N₄/CuBi₂O₄ photocatalyst had high recyclability and reusability. So after seven reuses, no measurable change was observed in the amount of nanocomposite and the rate of reaction efficiency.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"163 ","pages":"Article 107897"},"PeriodicalIF":3.4,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143642413","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}