Journal of Inorganic and Organometallic Polymers and Materials最新文献

{"title":"Nano-sized Binuclear Ag(I) Complexes with Thiocyanate and N-Donor Ligands: Synthesis, Characterization, Antimicrobial, Antioxidant and Anticancer Activities","authors":"Md. Tangebul Islam,&nbsp;Saiful Islam,&nbsp;G. M. Golzar Hossain,&nbsp;Dipa Islam,&nbsp;Pradip K. Bakshi","doi":"10.1007/s10904-025-03608-8","DOIUrl":"10.1007/s10904-025-03608-8","url":null,"abstract":"<div><p>Nano-sized binuclear Ag(I) complexes with thiocyanate and N-donor ligands such as adenine (ade), 1,10-phenanthroline (phen), and 1,8-diaminonaphthalene (dan) were synthesized and characterized by elemental (CHNS) and metal content analysis, FTIR, Raman, and ¹H/¹³C-NMR spectroscopy, thermal analysis (TGA–DSC), XRF, PXRD, FESEM-EDX and TEM methods. The proposed molecular formulas for the synthesized complexes were [Ag₂(ade)₂(μ-SCN)₂].2H₂O, [Ag₂(phen)₂(μ-SCN)₂].H₂O, and [Ag₂(dan)₂(μ-SCN)₂].3H₂O derived from elemental and metal content analysis. The coordination of the ligands with the Ag(I) ion was confirmed by their FTIR and ¹H-NMR spectral data. The SCN⁻ ligand acts as a bidentate bridge between the two Ag(I) ions in all three complexes, binding through S or (N,S) donor sites. Additionally, the other ligands, adenine (ade), 1,10-phenanthroline (phen), or 1,8-diaminonaphthalene (dan), coordinate bidentately with the Ag(I) ion. The crystallite size was determined using the Scherrer equation from XRD data and found to be in the range of 21.46–67.60 nm. The complexes showed rod-like, block-like and spherical morphologies in SEM and TEM analysis and the average particle sizes of the complexes ranged from 56.70 to 81.12 nm. The Ag(I) complexes demonstrated notable antimicrobial activity against both gram-positive and gram-negative bacteria, as well as fungi. In brine shrimp lethality bioassays, the higher LC₅₀ values of the complexes signified low toxicity to healthy cells. The complexes [Ag₂(ade)₂(μ-SCN)₂].2H₂O and [Ag₂(dan)₂(μ-SCN)₂].3H₂O exhibited IC₅₀ values ranging from 50 to 1000 μg/mL, indicating significant free radical scavenging activities. The anticancer potential of Ag(I) complexes was evaluated using HeLa cervical cancer cell lines, revealing cytotoxic effects for the [Ag₂(phen)₂(μ-SCN)₂].H₂O complex. With an IC₅₀ value of 58.80 ± 0.65 μg/mL, the complex displayed enhanced antiproliferation compared to cisplatin against the HeLa cell lines.</p></div>","PeriodicalId":639,"journal":{"name":"Journal of Inorganic and Organometallic Polymers and Materials","volume":"35 7","pages":"5563 - 5577"},"PeriodicalIF":4.9,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144869065","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 of Mn-Doped CrFe2O4 Nanoparticles and Their Composite with CNTs: Advanced Structural and Electronic Modifications for High-Efficiency Pollutant Degradation","authors":"Khadijah MohamedSaleh Katubi,&nbsp;Hira Fatima,&nbsp;Sofia Siddique,&nbsp;Z. A. Alrowaili,&nbsp;M. S. Al-Buriahi,&nbsp;Imran Shakir,&nbsp;Mamoona Anwar,&nbsp;Muhammad Farooq Warsi","doi":"10.1007/s10904-025-03611-z","DOIUrl":"10.1007/s10904-025-03611-z","url":null,"abstract":"<div><p>This research aims to develop and synthesize cost-effective photocatalysts for degrading organic contaminants in industrial wastewater and shows the innovative application of manganese-doped CrFe₂O₄/CNTs composite. Chromium ferrite (CF) and Mn-decorated chromium ferrite (MCF) were synthesized using coprecipitation, while MCF/CNTs composites were fabricated via ultrasonication techniques, respectively. Ferrites are considered promising photocatalysts due to their innovative properties, such as a small bandgap, stability against chemical and thermal degradation, high oxidation potential, and highly efficient photocatalytic activities for environmental remediation. The effects of manganese doping on pure CrFe₂O₄ and the strong interaction between CrFe₂O₄ and CNTs were examined using various physical and electrochemical techniques, such as XRD, FTIR, SEM, EDX, UV–Vis spectroscopy, and PL analysis. XRD analysis confirmed the cubic crystal structure, with crystallite sizes of 25.5 nm for CF, 22.1 nm for MCF, and 19.3 nm for MCF/CNTs. Bandgap energies calculated from Tauc plots were 2.15 eV for CF and 1.93 eV for MCF, demonstrating improved light absorption. Photocatalytic testing showed that MCF/CNTs composites achieved superior degradation efficiencies of 78% for crystal violet (CV) and 81% for acetylsalicylic acid (ASA), with rate constants of 0.007 min⁻¹ and 0.009 min⁻¹, respectively. These results highlight the synergistic effects of manganese doping and CNTs incorporation, which introduce crystal defects, tuned bandgap, enhanced surface area, more active site availability, reduced crystallite size, and improved charge separation efficiency and stability. This work demonstrates the significant potential of MCF/CNTs nanocomposites as highly efficient photocatalysts for removal of highly toxic compounds present in various types of waste water i.e. industrial waste water etc.</p></div>","PeriodicalId":639,"journal":{"name":"Journal of Inorganic and Organometallic Polymers and Materials","volume":"35 7","pages":"5611 - 5630"},"PeriodicalIF":4.9,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144869066","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":"Optimizing Magnetic, Mechanical, and Electrical Properties of Cobalt-Substituted Zinc Chromite Spinel via Microwave-Hydrothermal Synthesis","authors":"M. A. Hessien,&nbsp;R. M. Khattab,&nbsp;H. E. H. Sadek,&nbsp;H. H. Abo-Almaged,&nbsp;M. A. Taha","doi":"10.1007/s10904-025-03592-z","DOIUrl":"10.1007/s10904-025-03592-z","url":null,"abstract":"<div><p>Using the microwave-hydrothermal technique, researchers synthesized a cobalt-substituted zinc chromite spinel structure with the formula Zn_1 − xCo_xCr₂O₄ (x = 0.0, 0.25, 0.50, 0.75, 1.0). The resulting powder underwent analysis via X-ray diffraction (XRD), differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA) to determine the ideal conditions for eliminating organic components from the fired pellet. After establishing the optimal initial calcination temperature, all powder samples were calcined at 600 °C, then compressed and fired at 1300, 1400, 1500, and 1600 °C. The fired pellets were then examined using X-ray diffraction (XRD) and scanning electron microscopy (SEM). Additionally, researchers evaluated the pellets’ physical, electrical, dielectric, magnetic, and mechanical properties. The findings indicated that 1600 °C was the optimal firing temperature for the pellets. The apparent porosity decreased, and the bulk density increased with increasing Co content and firing temperature. Enhancements in magnetization, mechanical, and electrical conductivity, dielectric properties, and elastic moduli were observed by increasing the cobalt content. Porosity has a significant impact on mechanical properties. The mechanical properties were slightly reduced for zinc-rich pellets. The dielectric constant and the dielectric loss increased with increasing Co content at 1 MHz. In addition, the results show that the dielectric constant and dielectric loss factor decreased with increasing frequency, whereas the A.C. electrical conductivity increased with increasing frequency.</p></div>","PeriodicalId":639,"journal":{"name":"Journal of Inorganic and Organometallic Polymers and Materials","volume":"35 7","pages":"5326 - 5344"},"PeriodicalIF":4.9,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10904-025-03592-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144869067","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":"Er2O3-Doped Lead Borate Glasses: Advanced Optical and Radiation Shielding Performance","authors":"A. S. Abouhaswa,&nbsp;U. Perişanoğlu,&nbsp;S. Saltık,&nbsp;N. Ekinci,&nbsp;M. H. Nasr,&nbsp;S. Kalecik,&nbsp;E. Kavaz Perişanoğlu","doi":"10.1007/s10904-024-03563-w","DOIUrl":"10.1007/s10904-024-03563-w","url":null,"abstract":"<div><p>A new glass system with the composition 60B₂O₃ + 30PbF₂ + (10−x)K₂O + x Er₂O₃ (x = 0 to 3 mol%) were synthesized using the melt-quenching technique and comprehensively analyzed to evaluate their structural, optical, mechanical, and radiation shielding properties. Increasing Er₂O₃ concentration enhanced the density (from 4.260 to 4.89 g/cm³) and reduced the molar volume (from 29.28 to 28.98 cm³/mol), indicating a denser and more compact glass matrix. Optical studies revealed increased UV absorbance, a red shift in the cutoff wavelength, and a reduction in the optical energy gap from 3.487 to 3.335 eV (direct transitions). Urbach energy values increased from 0.722 to 1.083 eV, signifying heightened structural disorder. Enhanced refractive index and extinction coefficients further underscored the glasses’ potential for optical applications. Mechanical analyses demonstrated a significant increase in all elastic moduli, including Young’s, bulk, and shear moduli, with Er₂O₃ incorporation, indicating improved rigidity and mechanical stability. The radiation shielding performance of the glasses was assessed across photon energies of 0.015–15 MeV, incorporating both experimental data and machine learning (ML)-based predictions of mass attenuation coefficients (MAC). The ML model, developed using a neural network architecture, successfully predicted MAC values with high accuracy, demonstrating excellent agreement with XCOM-calculated results. Key shielding parameters, including half-value layer (HVL), effective atomic number (Z_eff), and buildup factors (EABF and EBF), improved significantly with higher Er₂O₃ content. BPKE3 glass, with the highest Er₂O₃ concentration, exhibited the best shielding efficiency, outperforming conventional shielding materials in terms of lower HVL and buildup factors, coupled with higher MAC and Z_eff values. This study highlights the dual role of Er₂O₃-doped lead borate glasses as efficient optical and radiation shielding materials. Machine learning effectively predicts shielding parameters, aiding material optimization for applications in nuclear, medical, and industrial fields.</p></div>","PeriodicalId":639,"journal":{"name":"Journal of Inorganic and Organometallic Polymers and Materials","volume":"35 6","pages":"4865 - 4883"},"PeriodicalIF":4.9,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10904-024-03563-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145168037","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":"Synthesis of 3,4-Dihydropyrimidinone Derivatives by Using Mag@TOS as a Strong and Magnetically Recoverable Nanocatalyst","authors":"Marjan Yazdani,&nbsp;Dawood Elhamifar,&nbsp;Masoumeh Shaker","doi":"10.1007/s10904-025-03617-7","DOIUrl":"10.1007/s10904-025-03617-7","url":null,"abstract":"<div><p>In this study, a novel magnetic titanium-containing organosilica (Mag@TOS) nanocomposite with core-shell structure is synthesized <i>via</i> alkaline hydrolysis and co-condensation of tetramethoxysilane (TMOS), tetrabutyl orthotitanate (TBOT) and 1,2-bis(triethoxysilyl)ethane (BTEE) around Mag@SiO₂ in the presence of cetyltrimethylammonium bromide (CTAB) surfactant. The Mag@TOS composite was characterized by using FTIR, SEM, PXRD, EDX, ICP and VSM techniques. The inverse cubic spinel phase of Fe₃O₄ and no formation of TiO₂ phases in the synthesis path of Mag@TOS were confirmed by the wide-angle PXRD technique. Also, the formation of the mesoporous shell and the superparamagnetic behavior of Mag@TOS were confirmed by low-angle PXRD and VSM analyses, respectively. Mag@TOS was successfully used as a strong catalyst in the Biginelli reaction and gave the desired 3,4-dihydropyrimidinone products in high yields. In addition, this catalyst was recovered and reused at least 5 times with keeping its efficiency. Some other advantages of the present study are high stability and no-leaching of active catalytic species during reaction conditions, high reaction rate and also easy recoverability and reusability of the catalyst.</p></div>","PeriodicalId":639,"journal":{"name":"Journal of Inorganic and Organometallic Polymers and Materials","volume":"35 7","pages":"5705 - 5720"},"PeriodicalIF":4.9,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144869068","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-Pot, for the Green Preparation of Benzimidazoles and 2,3-Dihydroquinazolin-4(1H)-ones Catalyzed by In2O3 NPs/Glycerol","authors":"Fadhil Faez Sead,&nbsp;Vicky Jain,&nbsp;Anjan Kumar,&nbsp;Subbulakshmi Ganesan,&nbsp;Aman Shankhyan,&nbsp;Girish Chandra Sharma,&nbsp;Pushpa Negi Bhakuni,&nbsp;Mosstafa Kazemi,&nbsp;Ramin Javahershenas","doi":"10.1007/s10904-025-03604-y","DOIUrl":"10.1007/s10904-025-03604-y","url":null,"abstract":"<div><p>Benzimidazoles and 2,3-dihydroquinazolin-4(1<i>H</i>)-ones are of great interest in medicinal chemistry for their potential to develop new therapeutic agents. This research presents an innovative one-pot synthesis method for these compounds using indium oxide nanoparticles (In₂O₃ NPs) as a catalyst, which has shown consistent efficiency and reusability over seven cycles. Glycerol is used as an environmentally friendly solvent under mild conditions. The study demonstrates that various substituents on the benzene ring do not affect reaction efficiency, resulting in high product yields. Indium oxide nanoparticles outperform previous catalysts, often leading to lower yields and longer reaction times while less reusable. The catalyst was characterized using techniques such as FT-IR, BET, TEM, XRD, and TGA, confirming its retained activity after multiple uses.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":639,"journal":{"name":"Journal of Inorganic and Organometallic Polymers and Materials","volume":"35 7","pages":"5494 - 5508"},"PeriodicalIF":4.9,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144869063","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":"Enhancement of Structure and Optical Aspects by Thermally Induced Amorphous-Crystalline Transition in As30Te55Ga15 Films","authors":"Rashed M. Hassan,&nbsp;Fadwa F. Mehdi,&nbsp;Alaa M. Abd-Elnaiem","doi":"10.1007/s10904-024-03573-8","DOIUrl":"10.1007/s10904-024-03573-8","url":null,"abstract":"<div><p>The synthesis of As-Te-Ga glass films with a higher Ga ratio is essential to improve their structural and optical properties for practical applications. Herein, 150 nm thick films of As₃₀Te₅₅Ga₁₅ chalcogenide were prepared utilizing the thermal evaporation technique from their bulk melted quench glass. The influences of annealing temperature (<span>(:{T}_{a})</span>) performed through the amorphous-crystalline region on the crystal structure and optical characteristics of As₃₀Te₅₅Ga₁₅ films were investigated. The structure of As₃₀Te₅₅Ga₁₅ films was investigated using differential scanning calorimetry and X-ray diffraction techniques, while the optical properties were accomplished utilizing a double-beam spectrophotometer. The As₃₀Te₅₅Ga₁₅ glass exhibits one glass transition and crystallization phenomenon, implying its homogeneity and purity. Both as thermally evaporated and annealed As₃₀Te₅₅Ga₁₅ films at <span>(:{T}_{a})</span> &lt; 433 K are noncrystalline, whereas the thermal-treated films at <span>(:{T}_{a})</span> ≥ 433 K are semicrystalline. The annealed As₃₀Te₅₅Ga₁₅ films are composed of hexagonal Ga₇Te₁₀ at <span>(:{T}_{a})</span> = 433 K, monoclinic As₂Te₃ and hexagonal Ga₇Te₁₀ at <span>(:{T}_{a})</span> = 473 K, and monoclinic As₂Te₃, hexagonal Ga₇Te₁₀ and hexagonal Ga₂Te₅ at <span>(:{T}_{a})</span> = 513 K. The change in optical constants and dispersion parameters showed two opposite trends associated with the amorphous and crystalline nature. For example, the band-gap energy demonstrated both direct and indirect optical transitions that dropped as <span>(:{T}_{a})</span> was elevated to 433 K, but increased again for films annealed at <span>(:{T}_{a})</span> = 473 K. The control of crystallite size and induced imperfections by annealing contributes to the improvement in optical characteristics.</p></div>","PeriodicalId":639,"journal":{"name":"Journal of Inorganic and Organometallic Polymers and Materials","volume":"35 6","pages":"5008 - 5020"},"PeriodicalIF":4.9,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145167324","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 Comprehensive DFT Insight on Thermoelectric Response of Halide Perovskites TlGeZ3 (Z = Cl, Br and I) for Renewable Energy Devices","authors":"Mumtaz Manzoor,&nbsp;Ramesh Sharma,&nbsp;Preeti Kumari,&nbsp;Bandar Ali Al-Asbahi,&nbsp;Yedluri Anil Kumar,&nbsp;Hamid Ullah","doi":"10.1007/s10904-024-03587-2","DOIUrl":"10.1007/s10904-024-03587-2","url":null,"abstract":"<div><p>The diverse perovskites are considered innovative solids for optoelectronic devices and photovoltaic cells. We investigated the structural, electrical, phonon dispersion, mechanical, optical, as well as transport properties of TlGeZ₃ (Z = Cl, Br, I) using calculations based on density functional theory (DFT). A phonon dispersion shows the examined materials' structural stability and formation energy of the TlGeZ₃ (Z = Cl, Br, I) compound, whilst positive phonon dispersion frequencies and elastic constants supported thermal and mechanical stability. In addition, the brittle and ductile behavior of the Poisson and Pugh ratios are investigated. The mechanical investigation has also documented the Debye and melting temperatures. The bandgap is tuned from 2.43 eV, 0.94 eV, and 0.57 eV with a modified Becke Johnson (mBJ) approximation by replacing Cl with Br and I. The optical spectrum reveals a transition <span>({varepsilon }_{1}(0))</span> (3.19, 6.10, 8.99) from the ultraviolet to the absorption spectrum area. The refractive index for each compound (TlGeZ₃ (Z = Cl, Br, I)) is (1.87, 2.51, 3.01) respectively. Additionally, the study's affinity for solar cells and optoelectronic uses is promised by the low light reflection (0.99, 0.18, 0.25) and optical energy loss range (1.9–3.1 eV) in the visible region. The thermal characteristic reveals the thermal stability, and the figure of merits values 0.9–1 advocate that the perovskite materials are suitable for use in thermal devices.</p></div>","PeriodicalId":639,"journal":{"name":"Journal of Inorganic and Organometallic Polymers and Materials","volume":"35 7","pages":"5287 - 5300"},"PeriodicalIF":4.9,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144869015","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":"Sustainable Supercapacitors: Exploring the Electrochemical Performance of Acacia Leucophloea Wood Sawdust-Based Activated Carbon and ZnCo₂O₄@PPy Composite","authors":"S. Nirmaladevi,&nbsp;R. Boopathiraja,&nbsp;S. Sathishkumar,&nbsp;T. Ravi Prakash,&nbsp;K. Ramachandran,&nbsp;Khalid Mashay Al-Anazi","doi":"10.1007/s10904-024-03569-4","DOIUrl":"10.1007/s10904-024-03569-4","url":null,"abstract":"<div><p>This project aims to convert renewable waste Acacia leucophloea wood sawdust into low-cost, environmentally friendly porous activated carbon (AC) through a hydrothermal process that produces zinc cobaltite and ALWSD (whereas polypyrrole is produced chemically and used in renewable energy storage devices). The statistical analysis of the diffusive and capacitive contributions to the supercapacitor performance is conducted by the application of numerical techniques. Asymmetric Supercapacitor (ASC) is a technology that uses sawdust from Acacia Leucophloea wood to create innovative activated carbon and zinc cobaltite composited polypyrrole. The instruments used are FESEM, XRD, and EDX to analyse elements, crystallinity, structural, and morphological features. The ZAHC has excellent electrochemical stability, maintaining 98.6% after 10,000 cycles, and outstanding capacitive performance of 331 Fg⁻¹ at 2 Ag⁻¹ in a three-electrode arrangement. The ZAHC electrode exhibits a small series resistance of 0.17 Ω and a charge transfer resistance of 1.2 Ω respectively. Based on the Trasatti method, the ZCOP electrode exhibits 13.2% capacitive behaviour at 5 mVs⁻¹ and 86.8% capacitive behaviour at 100 mVs⁻¹. The ZnCo₂O₄@PPy exhibits excellent electrochemical stability, maintaining 96.9% after 10,000 cycles, and outstanding capacitive performance of 853 Fg⁻¹ at 2 Ag⁻¹. The ZCOP electrode exhibits a small series resistance of 0.12 Ω and a charge transfer resistance of 3.2 Ω respectively The ZAHC/ZCOP ASC in a two-electrode configuration shows long durability of 99.09% after 10,000 cycles in addition to a large specific capacity of 320 Cg⁻¹at 2 Ag⁻¹, the manufactured ZAHC/ZCOP ASC displays a high power and energy density of 108 Whkg⁻¹ and 6821 Wkg⁻¹. Capacitive and diffusive behaviours of the prepared electrode and ASC device were discussed by using the Trsasatti model.</p></div>","PeriodicalId":639,"journal":{"name":"Journal of Inorganic and Organometallic Polymers and Materials","volume":"35 6","pages":"4952 - 4972"},"PeriodicalIF":4.9,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145167323","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":"Europium(III) Diphenylphosphinate 1D1 Structures: Coordination Polymers as Nanothermometers for Wide Temperature Ranges","authors":"Vinícius Rodrigues da Motta,&nbsp;Luís Felipe Bricks Bim,&nbsp;Sergio Luis Scarpari,&nbsp;Elizabeth Berwerth Stucchi,&nbsp;Marco Aurélio Cebim","doi":"10.1007/s10904-025-03603-z","DOIUrl":"10.1007/s10904-025-03603-z","url":null,"abstract":"<div><p>In this work, a new ratiometric sensor for nanothermometry is proposed, based on the coordination polymer [Eu(<i>dpp</i>)₃]_n – europium(III) diphenylphosphinate – in which the compound’s multicentric emissions are used to determine the absolute temperature across a wide range, from cryogenic temperatures (–100 °C) up to 200 °C. The compound was prepared by wet route precipitation synthesis, resulting in one-dimensional cylindrical particles that can be classified as nanorods or nanowires, with a length-to-diameter ratio greater than 10. The high chemical and thermal stability of the compound allows its use in this temperature range. Thermogravimetric analysis showed its decomposition to europium(III) polymetaphosphate, followed by the formation of europium(III) orthophosphate, with diphenylphosphinate ligands starting to decompose at 450 °C. FT-IR revealed at least two different types of coordination of the diphenylphosphinate ligands to the Eu^III ions, corroborating the presence of more than one Eu^III center in the asymmetric unit of the coordination polymer. The [Eu(<i>dpp</i>)₃]_n exhibits an excitation spectrum primarily dominated by ligand excitation, with charge transfer and intraconfigurational transitions of Eu^III showing lower intensity. Two types of transition are observed in the emission spectrum: one associated with a high-symmetry site and the other with low-symmetry sites. These emission bands were deconvoluted in the spectrum. The intensity ratio between emissions of the high and low symmetry sites was used as the luminescent intensity ratio (LIR), demonstrating through the analysis of the thermometric parameter as a function of temperature that the energy levels of the two Eu^III centers are thermally coupled. Finally, the relative sensitivity of the thermometers was calculated, yielding a value of 0.98% K⁻¹ at 172.65 K.</p></div>","PeriodicalId":639,"journal":{"name":"Journal of Inorganic and Organometallic Polymers and Materials","volume":"35 7","pages":"5483 - 5493"},"PeriodicalIF":4.9,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144869012","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}