Materials Science and Engineering: B最新文献

{"title":"Synthesis and evaluation of Gd3+-doped Ni-Zn nanocatalyst for structural, optical, magnetic properties, and high photocatalytic activity for wastewater treatment","authors":"Dharavath Balaganesh ,&nbsp;Komatireddy Damodar Reddy ,&nbsp;A. Sridhar ,&nbsp;N. Pavan Kumar ,&nbsp;M. Shruthi ,&nbsp;M. Prasad","doi":"10.1016/j.mseb.2025.118558","DOIUrl":"10.1016/j.mseb.2025.118558","url":null,"abstract":"<div><div>Pure and gadolinium-doped Ni-Zn ferrite nanoparticles were synthesised via the sol–gel auto-combustion route. X-ray diffraction analysis confirms the phase formation of cubic spinel structure with the <em>Fd-3 m</em> space group. Average crystalline size and microstrain were obtained from W-H plots, with values of 52 to 107 nm and 0.9 to 1.6, respectively, indicating the nanoparticle nature of NZGF. FTIR spectra revealed two characteristic spinel bands at 386 cm⁻¹ and 570 cm⁻¹, and the presence of functional groups. SEM micrographs show semi-spherical and polygon-shaped nanoparticles for higher doping levels, suggesting that the Gd doping impacts the morphology of the prepared samples. The optical properties were evaluated by UV–vis spectroscopy. It was found that the optical band gaps ranged from 1.65 to 1.71 eV. A smaller band gap energy signifies the semiconducting behaviour of NZGF. At room temperature, magnetic characterisation revealed that the samples exhibited low coercivity (≤50 Oe), reduced saturation magnetisation, and magnetic anisotropy, as determined by fitting the experimental data to the law of approach to saturation. The photocatalytic performance was assessed via the degradation of methylene blue (MB) dye under visible light irradiation. The incorporation of Gd³⁺ ions significantly enhanced the degradation efficiency from 21.4 % to 66.4 %. These findings indicate that precise tuning of the structural and compositional parameters can simultaneously optimize both the magnetic and photocatalytic functionalities of the material, highlighting its potential suitability for soft magnetic components and wastewater remediation applications.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"321 ","pages":"Article 118558"},"PeriodicalIF":3.9,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144522474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fabrication of novel Tin-doped TiO2/Ti3C2 MXene photocatalyst for enhanced visible light-driven degradation of Rhodamine B and Dinoseb: Response surface methodology optimization","authors":"Sanaz Merci,&nbsp;Tayebeh Shamspur,&nbsp;Ali Mostafavi","doi":"10.1016/j.mseb.2025.118574","DOIUrl":"10.1016/j.mseb.2025.118574","url":null,"abstract":"<div><div>Transition metal carbides (MXenes) have emerged as promising 2D materials for photocatalysis due to their exceptional conductivity and high surface area. In this study, we synthesized a novel Sn-doped TiO₂/Ti₃C₂ MXene nanocomposite via a hydrothermal method and characterized it using various structural, optical, and electrochemical techniques, including Mott–Schottky analysis, Tafel plots, and photocurrent measurements. The incorporation of Sn effectively narrowed the bandgap of TiO₂ from 3.40 eV to 3.26 eV, while integration with Ti₃C₂ MXene further reduced it to 2.76 eV and facilitated efficient charge separation through Schottky junction formation. Under visible light irradiation, the photocatalyst achieved high degradation efficiencies of 95.64 % for Rhodamine B and 91.38 % for Dinoseb, corresponding rate constants of 0.0576 min⁻¹ and 0.0175 min⁻¹. The investigation found that hydroxyl radicals (^•OH) and superoxide radicals (^•O₂⁻) are the main reactive species responsible for pollutant degradation, and TOC analysis confirmed the photocatalyst’s ability to mineralize over 80 % of organic pollutants into inorganic compounds. Response surface methodology (RSM) was employed for multivariate optimization of operational parameters. The material also demonstrated excellent reusability over seven cycles. This nanocomposite is the first report on combining Sn-doped TiO₂ with Ti₃C₂ MXene for synergistic enhancement in visible-light-driven photocatalysis, providing a highly efficient and stable platform for removing hazardous organic pollutants from wastewater.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"321 ","pages":"Article 118574"},"PeriodicalIF":3.9,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144522475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structure design and supercapacitance properties of zeolite imidazolate framework and their derives: A review","authors":"Yanhong Li ,&nbsp;Chen Yang ,&nbsp;Haotian Jin ,&nbsp;Chunmei Zhang ,&nbsp;Yong Huang ,&nbsp;Xiaoshuai Han ,&nbsp;Hongliang Zhao ,&nbsp;Haimei Mao ,&nbsp;Shuijian He ,&nbsp;Shaohua Jiang ,&nbsp;Gaigai Duan","doi":"10.1016/j.mseb.2025.118565","DOIUrl":"10.1016/j.mseb.2025.118565","url":null,"abstract":"<div><div>Zeolitic imidazolate frameworks (ZIFs), a subclass of metal–organic frameworks (MOFs), have attracted significant attention due to their unique properties and potential applications. ZIFs are composed of metal ions and imidazole linkers and possess a zeolite-like topology. This unique structure endows ZIFs with excellent porosity and thermal stability. This paper analyzes how various nanostructured morphologies derived from ZIF-8 and ZIF-67 precursors significantly influence the electrochemical performance of supercapacitors. The classification of nanostructured morphologies highlights their crucial role in modulating the electrochemical behavior of supercapacitors and significantly enhances their electrochemical performance. Our discussion not only covers the synthesis and characterization of these nanostructures but also emphasizes their core role in shaping the electrochemical properties of the resulting materials. As the research field centered on ZIF-based supercapacitors continues to evolve, innovative achievements based on ZIF-8 and ZIF-67 will redefine the standards of energy storage and pave the way for groundbreaking technological advancements.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"321 ","pages":"Article 118565"},"PeriodicalIF":3.9,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144517781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An investigation into the structure, microhardness, intermolecular interactions, electrical and optical properties in lead-free (CH3CH2CH2NH3)2[BiCl5] single crystals for optoelectronic applications","authors":"Dinesh Kulhary ,&nbsp;Neeraj Dhariwal","doi":"10.1016/j.mseb.2025.118552","DOIUrl":"10.1016/j.mseb.2025.118552","url":null,"abstract":"<div><div>Organic-inorganic hybrid perovskites known for their exceptional optoelectronic properties have garnered considerable attention over the years. In this study, the hirshfeld surface analysis has been employed to uncover significant interactions among the organic and inorganic moieties. The Microhardness of the synthesized crystal was estimated using the microhardness indentation method and the crystals lie in the category of hard materials. HOMO-LUMO of the compound was determined to study the diverse interactions among the molecules. Further, the average value of the distortion parameters, were calculated to be DI (Bi-Cl) = 0.061800 and oct * 10³ = 4.88, respectively. Impedance spectroscopy and modulus spectroscopy were employed to uncover the charge conduction mechanism in the crystal. The compound’s optical band gap and activation energy were calculated to be 3.5 eV and 0.64 eV, respectively. This thorough investigation has revealed interesting properties, making (CH₃CH₂CH₂NH₃)₂[BiCl₅] a significant advancement in the research of organic–inorganic hybrid perovskites.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"321 ","pages":"Article 118552"},"PeriodicalIF":3.9,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144517782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of polyethylene glycol on structural and magnetic properties of SrFe12O19 nanoparticles prepared by sol-gel auto-combustion method","authors":"Linhao Cheng ,&nbsp;Jiacheng Huang ,&nbsp;Yang Sun ,&nbsp;Shuolei Wei ,&nbsp;Bing Teng ,&nbsp;Jie Su ,&nbsp;Yunzhong Chen","doi":"10.1016/j.mseb.2025.118561","DOIUrl":"10.1016/j.mseb.2025.118561","url":null,"abstract":"<div><div>M-type strontium ferrites (SrM) are widely used in permanent magnets, high-density magnetic recording media, and microwave equipment. Herein, the effect of polyethylene glycol (PEG) on the structural and magnetic properties of SrM nanoparticles was studied by using the sol-gel self-combustion method. The properties of the samples were characterized by XRD, SEM, and VSM. XRD indicates that all samples consist of pure SrM phases. Compared to samples without PEG, SrM nanoparticles synthesized with an optimal PEG concentration (1 mg/ml) exhibited reduced lattice parameters and unit cell volume. SEM images reveal that the optimized samples effectively prevented particle agglomeration. The average particle size decreased from 162.3 nm to 91.6 nm. Magnetic studies demonstrated that the M_R increased from 27.7 emu/g to 32.8 emu/g, and M_S increased from 51.4 emu/g to 60.7 emu/g. Furthermore, the magnetocrystalline anisotropy constant increased from 4.3 × 10⁵ erg·cm⁻³ to 5.3 × 10⁵ erg·cm⁻³. This study is of significant importance for understanding the effects of different concentrations of PEG on the various properties of SrM nanoparticles.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"321 ","pages":"Article 118561"},"PeriodicalIF":3.9,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144517780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Engineered metamorphosis: Neodymium-driven phase transformation in zirconia nanoarchitectures for next-generation radiation shields","authors":"Mohammad W. Marashdeh ,&nbsp;K.A Mahmoud ,&nbsp;Hanan Akhdar ,&nbsp;Islam G. Alhindawy","doi":"10.1016/j.mseb.2025.118570","DOIUrl":"10.1016/j.mseb.2025.118570","url":null,"abstract":"<div><div>Tetragonal zirconia (ZrO₂) is a promising material for radiation shielding due to its high density, chemical stability, and non-toxic nature. In this study, tetragonal ZrO₂ nanoparticles doped with neodymium (Nd³⁺) were synthesized using a modified hydrothermal method to enhance phase stability and radiation attenuation efficiency. Structural and morphological analyses confirmed successful stabilization of the tetragonal phase, with reduced particle size and improved homogeneity at higher Nd concentrations. Gamma-ray shielding performance was evaluated across energies from 0.059 to 2.506 MeV. The highest linear attenuation coefficient (LAC) obtained was 1.129 cm⁻¹ at 0.059 MeV for the 3 mol% Nd-doped sample. Monte Carlo simulations and experimental results showed strong agreement. These findings demonstrate that Nd-doped tetragonal ZrO₂ is a viable, environmentally friendly alternative to lead-based materials for low- to intermediate-energy gamma shielding, offering potential for safe and effective use in medical, industrial, and nuclear applications.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"321 ","pages":"Article 118570"},"PeriodicalIF":3.9,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144514017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Insights into the effects of physico-chemical parameters in tailoring zinc stannate nanostructures for UV protection and gas barrier properties of thermoplastic polyurethane nanocomposites","authors":"Bharti Rana,&nbsp;Syed Wazed Ali,&nbsp;Mangala Joshi","doi":"10.1016/j.mseb.2025.118556","DOIUrl":"10.1016/j.mseb.2025.118556","url":null,"abstract":"<div><div>Zinc stannate nanostructures have attracted attention from researchers because of their tunable physical and chemical characteristics. The challenge, however, lies in understanding the synthesis of ternary metal oxides, as it is quite complex. Herein, zinc stannate nanostructures (nanocubes, nanoparticles, nanoplatelets, nanorods, and polyhedra) have been synthesized using an efficient and low-cost hydrothermal approach considering various physico-chemical parameters. Unique-morphing nanostructures were selected to fabricate thermoplastic polyurethane (TPU) nanocomposite films. Altering the filler’s morphology considerably alters the UV protection factor. Zinc stannate nanorods with high aspect ratio offer superior UV-blocking, with an 80 % improvement in UPF mean value compared to pristine TPU film. The presence of nanorods in TPU films creates a tortuous pathway, resulting in a substantial enhancement of about 34 % and 39 % of the gas barrier property against helium and oxygen, respectively. Moreover, the effect of varied morphology and their dispersion on the gas barrier mechanism is also illustrated.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"321 ","pages":"Article 118556"},"PeriodicalIF":3.9,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144514082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hybrid modeling with supervised learning and SCAPS simulations for performance analysis of Cs0.17FA0.83PbI3−xBrx perovskite solar cells","authors":"Subham Subba,&nbsp;Joy Sarkar,&nbsp;Suman Chatterjee","doi":"10.1016/j.mseb.2025.118482","DOIUrl":"10.1016/j.mseb.2025.118482","url":null,"abstract":"<div><div>In this study, we integrate numerical simulations with supervised learning to predict the performance of Cs_0.17FA_0.83PbI<span><math><msub><mrow></mrow><mrow><mn>3</mn><mo>−</mo><mi>x</mi></mrow></msub></math></span>Br<span><math><msub><mrow></mrow><mrow><mi>x</mi></mrow></msub></math></span>-based perovskite solar cells. A dataset of 3,240 points was generated using SCAPS by varying absorber thickness (<span><math><mi>t</mi></math></span>), defect density (<span><math><msub><mrow><mi>N</mi></mrow><mrow><mi>t</mi></mrow></msub></math></span>), and donor density (<span><math><msub><mrow><mi>N</mi></mrow><mrow><mi>d</mi></mrow></msub></math></span>) across six bromine compositions (x = 0, 0.5, 1, 1.5, 2, and 2.5). Four Random Forest models were trained to predict power conversion efficiency (PCE), open-circuit voltage (Voc), short-circuit current density (Jsc), and fill factor (FF), achieving test R<span><math><msup><mrow></mrow><mrow><mn>2</mn></mrow></msup></math></span> values consistently above 0.99. The corresponding RMSE values were 0.197%, 0.008 V, 0.317 mA/cm<span><math><msup><mrow></mrow><mrow><mn>2</mn></mrow></msup></math></span>, and 1.181% for PCE, Voc, Jsc, and FF, respectively. To validate generalization, the models were tested on Cs_0.17FA_0.83PbI_2.6Br_0.4 composition, showing strong agreement with simulations. Feature correlation analysis identified <span><math><msub><mrow><mi>N</mi></mrow><mrow><mi>t</mi></mrow></msub></math></span> and <span><math><msub><mrow><mi>N</mi></mrow><mrow><mi>d</mi></mrow></msub></math></span> as key performance factors. This approach can be extended to other perovskite compositions, device configurations, transport layers, and alternative ML techniques for improved generalization.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"321 ","pages":"Article 118482"},"PeriodicalIF":3.9,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144514083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A novel Ni–zeolite–biochar green catalyst: optimization of composition and preparation strategy revealed by TPR, TPD, and XPS","authors":"Suryamol Nambyaruveettil ,&nbsp;Labeeb Ali ,&nbsp;Mirza Belal Beg ,&nbsp;Abbas Khaleel ,&nbsp;Mohammednoor Altarawneh","doi":"10.1016/j.mseb.2025.118566","DOIUrl":"10.1016/j.mseb.2025.118566","url":null,"abstract":"<div><div>The development in green hydrogenation technology depends on the production of robust and reasonably priced catalyst supports. This study synthesized and optimized a novel Ni-zeolite-biochar hybrid catalyst, improved by changes in composition, method of synthesis, and metal loading. The catalyst was developed using commercially obtained mordenite zeolite with a high-silica framework-type material known for its strong acidity and thermal stability, and biochar derived from date pit powder through controlled pyrolysis, providing acidity and surface oxygenation functionalities, respectively. The investigation of reducibility, metal dispersion, metal support interaction strength and electronic interactions of the material was conducted using temperature-programmed reduction (TPR), temperature-programmed desorption (TPD), and X-ray photoelectron spectroscopy (XPS), thereby fully describing it. Out of different nickel loading (5 %,15 %,25 %), 15 % was identified as optimal. Similarly, the effects of zeolite content, impregnation order, and the roles of wet impregnation and co-impregnation in catalyst reducibility were critically analyzed. The best formulation of Nickel zeolite biochar (NZB) exhibited a low reduction temperature (Tmax = 390 °C), high hydrogen consumption (7135.2 μmolg-1), medium metal-support interaction, and high dispersion (63.27 %). Compared to conventional Ni-based catalysts such as Ni/Al₂O₃ and Ni/SiO₂, the hybrid system demonstrated an improved reducibility and high metal dispersion. The robustness of the system was enhanced by the acidity of the zeolite and the oxygenation properties of the biochar together. The Ni 2<em>p</em> binding energy exhibited a positive shift on the XPS test, therefore confirming a strong electrical link between the metal and the substrate. This work presents a fresh, environmentally friendly, flexible catalytic support system that enhances nickel dispersion and reducibility. This study will provide the foundation for catalytic applications including selective hydrogenations. The catalytic relevance of the optimized NZB system was demonstrated through its successful application in 1,3-butadiene selective hydrogenation, achieving 100 % conversion with excellent deactivation resistance.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"321 ","pages":"Article 118566"},"PeriodicalIF":3.9,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144514121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High-thermal-stability PA6T separators via non-solvent induced phase separation for high-performance supercapacitors","authors":"Qiang Shi ,&nbsp;Meiyan Liu ,&nbsp;Haiyan Zhang ,&nbsp;Wanjun Liu ,&nbsp;Jiankui Sun ,&nbsp;Xiufang Sun ,&nbsp;Zijin Wang","doi":"10.1016/j.mseb.2025.118563","DOIUrl":"10.1016/j.mseb.2025.118563","url":null,"abstract":"<div><div>A heat-resistant semi-aromatic polyamide PA6T separator was successfully fabricated via non-solvent induced phase inversion using concentrated sulfuric acid as the solvent, demonstrating significant potential for supercapacitor applications. Optimized fabrication conditions-a 50:50 Na₂SO₄/glycerol coagulation bath and a 7 % PA6T/5% glycerol casting solution-yielded a thermally robust separator with zero shrinkage at 170 °C after 60 min. The PA6T-7 % separator demonstrated exceptional electrochemical properties: 10.4 mS/cm ionic conductivity, 240.1F/g specific capacitance at 0.1 A/g, and 86.2 % capacitance retention at 5 A/g. It maintained 97.8 % capacitance over 1,000 cycles at 0.5 A/g, supported by its optimized porous structure (91.3 % porosity, 45.7° contact angle, 70.4 % electrolyte uptake). Combining thermal resilience, facile processing, and stable charge storage, this material shows great potential as a next-generation separator for high-power energy storage systems.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"321 ","pages":"Article 118563"},"PeriodicalIF":3.9,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144514015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}