Journal of Materials Science最新文献

{"title":"Wear and corrosion resistance of an underwater coated epoxy resin reinforced with GO-Fe3O4 hybrid fillers","authors":"Gaoyu Wang,&nbsp;Peizhe Sun,&nbsp;Ting Dai,&nbsp;Leyi Wu,&nbsp;Lijian Xuan,&nbsp;Ping Chen,&nbsp;Chenggang Wang,&nbsp;Lu Zhang","doi":"10.1007/s10853-025-10792-y","DOIUrl":"10.1007/s10853-025-10792-y","url":null,"abstract":"<div><p>During underwater repair of failed marine equipment coatings, the presence of residual liquid between the repair coating and the substrate will weaken the interfacial adhesion. This decrease in adhesion properties significantly impacts on the mechanical properties, tribological properties, and corrosion resistance of the repair coating. This study designed GO-Fe₃O₄ hybrid fillers and prepared the GO-Fe₃O₄/ER composite coating. The hybrid fillers drive the uncured ER matrix to squeeze out the residual liquids, by an external magnetic field. The optimal content of GO-Fe₃O₄ hybrid fillers is 1.5 wt.%, and the effect of the hybrid fillers on the mechanical properties was investigated. The reinforcing and lubricating phases synergistically enhance GO-Fe₃O₄/ER composite coatings to exhibit optimal tribological properties. The influence of the preparation process with/without magnetic field, filler type, and filler content on the corrosion resistance of the ER composite coating was investigated. The synergistic effect of magnetic polymorphic filler enhances the corrosion resistance of GO-Fe₃O₄/ER composite coating, where the magnetic field preparation process excludes residual liquid, and the polymorphic filler hinders the penetration of corrosive media. The magnetic hybrid filler reinforced ER coating has application potential in the underwater repair of marine parts.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 14","pages":"6235 - 6253"},"PeriodicalIF":3.5,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143850952","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":"Multi-functional dressing with curcumin displays anti-inflammatory, antioxidant, angiogenic, and collagen regeneration effects in diabetic wound healing","authors":"Yuling Zhang,&nbsp;Junchao Sun,&nbsp;Yufang Liu,&nbsp;Shudong Sun,&nbsp;Kun Wang","doi":"10.1007/s10853-025-10823-8","DOIUrl":"10.1007/s10853-025-10823-8","url":null,"abstract":"<div><p>Wound healing in individuals with diabetes poses considerable challenges in clinical practice, involving a range of physiologic processes, including the regulation of inflammation, anti-oxidation, angiogenesis, and collagen regeneration. Given the practical requirements for clinical applications, it is essential to develop a versatile dressing that can be tailored to the patient's specific wound morphology. Consequently, there is an urgent need for the development of a multi-functional wound dressing that integrates synergistic anti-inflammatory, anti-oxidative, angiogenic, and collagen regeneration capabilities. Hydrogels have emerged as promising biomaterials for skin wound treatment due to their excellent biocompatibility, remarkable anti-inflammatory properties, injectability, and adhesiveness. In this study, we synthesized a methacryloyl hydrogel (GelMA) dressing infused with curcumin (Cur), exploiting the advantageous biologic characteristics of GelMA to address the challenges associated with the rate of metabolism of Cur and the barriers to its skin permeability. In vitro experiments demonstrated that Cur–GelMA exhibited favorable biocompatibility and possessed anti-inflammatory, antioxidative, and angiogenic properties. Furthermore, in vivo experimental findings confirmed that Cur–GelMA effectively regulated inflammation, promoted angiogenesis, and facilitated collagen regeneration in skin defects of a diabetic mouse model, thereby accelerating the wound healing process. In conclusion, we successfully developed a multi-functional wound dressing with anti-inflammatory, anti-oxidative, angiogenic, and collagen regeneration functions, specifically designed for the treatment of difficult-to-heal diabetic wounds.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 14","pages":"6217 - 6234"},"PeriodicalIF":3.5,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143850963","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":"Understanding the hydride precipitation mechanism in HCP Zr polycrystals: a micromechanical approach","authors":"Yang Liu,&nbsp;Mark R. Wenman,&nbsp;Catrin M. Davies,&nbsp;Fionn P. E. Dunne","doi":"10.1007/s10853-025-10796-8","DOIUrl":"10.1007/s10853-025-10796-8","url":null,"abstract":"<div><p>This study focuses on the hydride precipitation in zirconium polycrystals during thermo-mechanical cycles. The precipitation and dissolution of mesoscale hydrides in Zircaloy-4 is modelled using crystal plasticity finite element methods supported with DFT-informed zirconium lattice hydrogen concentration. Results for a tri-crystal case show the effects of crystallography, thermo-mechanical load and elasto-plastic anisotropy on hydride nucleation and growth. Analyses of polycrystalline models provide new insights into the complex precipitation process of hydrides in Zircaloy-4 with explicit representation of experimental observations that lay the foundation for further research in this field. Micromechanical findings demonstrate the importance of microstructure, pre-thermal condition, and hydrogen concentration limit on hydride precipitation. Overall, the study provides a deeper understanding of hydride formation during industrially relevant reactor conditions.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 14","pages":"6254 - 6287"},"PeriodicalIF":3.5,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10853-025-10796-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143850953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unique hierarchically structured medium-entropy nitride for rechargeable Li–CO2 batteries with high capacity","authors":"Hui Cheng,&nbsp;Diyi Wang,&nbsp;Zhoujie Mao,&nbsp;Jiacheng Yi,&nbsp;Yong Yang","doi":"10.1007/s10853-025-10821-w","DOIUrl":"10.1007/s10853-025-10821-w","url":null,"abstract":"<div><p>The research on Li–CO₂ batteries with substantial energy density is notable for its potential contribution to the carbon neutrality. A pivotal aspect of the study is the advancement of cost-effective and efficient cathode catalysts to improve Li–CO₂ battery performance. Herein, a unique hierarchical medium-entropy nitride (CoNiMnN@C) composite is prepared through the utilization of mixed metal solution construction of metal organic frameworks, aiming at developing cathode catalysts with superior dispersion ability of lithium carbonate and conductivity. As a result, the CoNiMnN@C based Li–CO₂ battery presents an exceptional discharge capacity of 23555 mA h g⁻¹ due to the distinctive medium-entropy effect of CoNiMnN and the hierarchical structure that exposes numerous catalytic active sites. The battery also exhibits impressive durability across multiple cycles lasts 500 h and maintains a low overpotential of 1.48 V at a discharge/charge rate of 100 mA g⁻¹. This work extends the application of medium-entropy materials in Li–CO₂ batteries and provides unique ways to its design.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 14","pages":"6176 - 6187"},"PeriodicalIF":3.5,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143850960","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":"Application of porous carbon materials prepared from polyurethane foam waste in zinc-ion hybrid capacitors","authors":"Song Wang,&nbsp;Lin Duan","doi":"10.1007/s10853-025-10837-2","DOIUrl":"10.1007/s10853-025-10837-2","url":null,"abstract":"<div><p>Porous carbon materials were prepared from polyurethane foam waste (PFW) via a rapid carbonization method. The potential applications of the derived porous carbon materials as the cathode active material in zinc-ion hybrid capacitors (ZHCs) were investigated. The porous carbon material prepared at 800 °C, PFW-800, possesses a specific surface area of 1223.6 m²g⁻¹. When PFW-800 was applied as the cathode active material in ZHCs, the assembled ZHC showed a high specific capacitance of 434.1 F g⁻¹ at 0.2 A g⁻¹. Meanwhile, the energy density reached 212.1 Wh kg⁻¹ at the power density of 190.3 W kg⁻¹. Furthermore, the ZHC employing PFW-800 as the cathode active material demonstrated good rate capability and maintained over 90% capacitance retention after 5000 charge–discharge cycles. This work lays the foundation for the efficient utilization of polymer waste.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 14","pages":"6188 - 6198"},"PeriodicalIF":3.5,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143850961","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 interstitial O on specific orientation moduli and thermal/stress-induced products in bcc Ti–Mo alloys","authors":"Cheng Ren,&nbsp;Xiaohua Min,&nbsp;Jincai Dai","doi":"10.1007/s10853-025-10811-y","DOIUrl":"10.1007/s10853-025-10811-y","url":null,"abstract":"<div><p>O significantly affects the thermal/stress-induced products in β-type titanium alloys. However, the mechanism of O effects on the displacive behaviors involved in the thermal/stress-induced phase transformation and twinning process is still not fully elucidated. The effects of interstitial O on specific orientation moduli and thermal/stress-induced products in bcc Ti–Mo alloys were investigated through first-principles calculations combined with microstructural observations. The addition of O decreased the formation energy of the supercell and formed the Mo–O and Ti–O bonds with the increase in the bonding electron number, thereby enhancing the β phase stability. The specific orientation moduli such as Young’s modulus (<i>E</i>_<i>100</i>), tetragonal shear modulus (<i>C</i>′), and shear moduli (<i>G</i>_<i>111</i> and <i>G</i>_<i>113</i>) were increased, which was attributed to the formation of Mo–O and Ti–O bonds along &lt;100&gt;_β direction and the strengthened Ti–Ti bonds along &lt;110&gt;_β, &lt;111&gt;_β and &lt;113&gt;_β directions, respectively. The addition of O suppressed the thermal-induced ω phase, corresponding to its structural change from hexagonal to tripartite, and the predominant stress-induced product of α\" martensite was inhibited due to the increase in moduli of <i>G</i>_<i>111</i>, <i>C</i>′, and <i>E</i>_<i>100</i>. This study deepens the understanding of the role of O in phase transformation and twinning mechanisms.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 14","pages":"6341 - 6353"},"PeriodicalIF":3.5,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143850965","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":"Laser-clad Al-Matrix coatings reinforced with icosahedral quasicrystals obtained using Al-Cu-Fe–Cr decagonal quasicrystalline powders on Al substrates","authors":"A. V. Rodrigues,&nbsp;A. F. Ramirez,&nbsp;J. B. Fogagnolo,&nbsp;W. Wolf","doi":"10.1007/s10853-025-10815-8","DOIUrl":"10.1007/s10853-025-10815-8","url":null,"abstract":"<p>Coating fabrication using laser cladding process is a versatile method for producing functional surfaces that can be tailored to present enhanced physical and chemical properties. The high cooling rates that are experienced by the materials being deposited favor the formation of refined metastable phases. Among these, the formation of refined icosahedral quasicrystals, embedded in an Al matrix, is an especially desirable surface microstructure, due to its low friction coefficient and high hardness, which are essential for applications demanding resistance to scratches and wear. It has been recently shown that decagonal quasicrystals forming in Al-Cu-Fe–Cr alloys can transform into icosahedral quasicrystals when rapid solidification methods are applied. This trend is further intensified when the Al concentration is increased. In this sense, the present work aims at applying the laser cladding process using a pre-alloyed Al₆₇Cu₂₀Fe₅Cr₈ (%at.) and commercial purity Al powders to study the effect of the rapid cooling rates and Al dilution, that the pre-alloyed powders will be subjected to, on the nature of the quasicrystalline phase formed. In addition, this work also focuses on obtaining adequate laser cladding parameters that yield high quality coatings on the Al substrate. This work shows that using a mixture of Al-Cu-Fe–Cr and pure Al powders resulted in a suitable dilution depth, which led to a homogeneous distribution of the reinforcing particles in the Al matrix. On the other hand, the cladded surfaces produced with only the Al-Cu-Fe–Cr powder resulted in coatings with almost no dilution into the Al substrate and, consequently, poor interfacial microstructure quality. It is also shown that although the pre-alloyed powder consisted mostly of decagonal quasicrystals, when this alloy was diluted to more Al-concentrated compositions and subjected to the fast solidification conditions of the laser cladding process, the quasicrystals formed belong to the icosahedral structure. The laser-clad track with the highest quality was obtained with the Al-Cu-Fe–Cr + Al powder mixture, subjected to a laser power of 200 W, which resulted in a microstructure composed of fine and well-distributed icosahedral quasicrystalline particles dispersed in the Al matrix. This laser-clad track presented the highest microhardness values among all the tested samples, about 251 kgf/mm², substantially higher than the microhardness of 54 kgf/mm² from the Al substrate.</p>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 14","pages":"6369 - 6386"},"PeriodicalIF":3.5,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143850967","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":"Recent advances in selected nanostructured electroactive materials for electrochemical water splitting","authors":"Abdudin G. Temam,&nbsp;Adil Alshoaibi,&nbsp;Seyoum A. Getaneh,&nbsp;Chawki Awada,&nbsp;Assumpta C. Nwanya,&nbsp;Paul M. Ejikeme,&nbsp;Fabian I. Ezema","doi":"10.1007/s10853-025-10814-9","DOIUrl":"10.1007/s10853-025-10814-9","url":null,"abstract":"<div><p>Sustainable renewable energy sources play significant role to encounter the unpredictable effects of climate change and energy deficit. Renewable energy holds great potential to mitigate environmental pollution issue brought on by the combustion of fossil fuels. Hydrogen (H₂) is a clean energy storage and carrier medium that can provide the highest energy density (142 kJ/g) without carbon emissions. Water splitting is a viable method to produce hydrogen (H₂) gas. This approach involves two important electrochemical processes: hydrogen evolution reaction at cathode and oxygen evolution reaction at anode. Water splitting towards hydrogen is highly energetic and requires efficient catalysts. Recently, nanostructured electroactive materials have attracted research attention due to their morphology, composition, and accessible active sites. Several nanostructured materials have been reported as promising catalysts and electrode materials in electrochemical water splitting. Even though water splitting with the use of nanomaterials is progressing, there are still drawbacks, including low stability, high cost, low durability, and insufficient efficiency. Therefore, the area is open for further investigation in synthesis and utilization of nanostructured electroactive materials with enhanced rate of charge transfer, reasonable bandgap and extended stability. Finally, the review highlighted challenges and future perspectives on the potential of electroactive nanomaterials for hydrogen production.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 14","pages":"6059 - 6086"},"PeriodicalIF":3.5,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143850950","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":"Review: the revolutionary solutions of graphene-based nanomaterials for desalination and water purification membranes and its applications","authors":"Sachin Sharma Ashok Kumar,&nbsp;Khishn K. Kandiah,&nbsp;K. H. Loh,&nbsp;J. Liew,&nbsp;Z. L. Goh,&nbsp;K. Ramesh,&nbsp;S. Ramesh,&nbsp;S. Ramesh,&nbsp;S. K. Tiong","doi":"10.1007/s10853-025-10813-w","DOIUrl":"10.1007/s10853-025-10813-w","url":null,"abstract":"<div><p>The global challenges of the pollution in aquatic environments and water scarcity have been rapidly addressed via the application of membrane-based separations for water desalination and purification because of its advantages of easy scale-up, easy operation, environmental friendliness and energy efficiency, respectively. Lately, the new generation two-dimensional (2D) graphene and its nanomaterials including aquaporin, carbon nanotubes and zeolites have exhibited great potential for desalination and membrane-based separation fields due to its fascinating features such as large specific surface area, rich modification approaches, single atomic layer structure, nanosized pores, hydrophobic nature, high strength and durability as well as high thermal and electrical characteristics, respectively. Furthermore, an insight on the current research on graphene and its nanomaterials has been described along with its significance as promising nanomaterials in the desalination processes. This review article firstly introduces the history for desalination processes and its properties of interest. Secondly, the recent advancements of incorporating these nanomaterials in desalination processes such as reverse osmosis, forward osmosis, pervaporation, membrane distillation, etc., will be discussed. The challenges and future prospectives of these functional materials have also been described. In overall, these nanomaterials as enhancers have contributed significantly to the desalination technology since they have shown multiple functionalities with enhanced water transport properties. Finally, with respect to the fascinating features of these nanomaterials, we believe that the graphene and its nanomaterials still have a great research value and could potentially revolutionize desalination and the membrane separation technology.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 15","pages":"6454 - 6476"},"PeriodicalIF":3.5,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143875356","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-throughput first-principles prediction of superlubricity at the interfaces of NbS2 based heterostructures","authors":"Lu Chen,&nbsp;Jianbang Chen,&nbsp;Xinyue Bi,&nbsp;Tengfei Cao,&nbsp;Junqin Shi,&nbsp;Xiaoli Fan","doi":"10.1007/s10853-025-10780-2","DOIUrl":"10.1007/s10853-025-10780-2","url":null,"abstract":"<div><p>Heterostructures composed of transition metal dichalcogenides (TMD) monolayers hold great promise in structural superlubricity. Recently, NbS₂ has been synthesized and its potential as the solid lubricant has been demonstrated. In this study, high-throughput first-principles calculations were conducted to investigate the friction behavior of four NbS₂ based heterostructures: NbS₂/TiS₂, NbS₂/MoS₂, NbS₂/NbSe₂, and NbS₂/MoSe₂ heterostructures, aiming to discover novel superlubricants. Among these, the sliding energy barrier and lateral shear strength of NbS₂/TiS₂ and NbS₂/MoS₂ heterostructures are the highest and lowest, respectively. The low bonding strength, differential charge density, and large in-plane stiffness of NbS₂/MoS₂ heterostructures result in lower frictional forces and friction coefficients under various normal loads. Furthermore, under the load of 1nN, the friction coefficient (0.0011) at the interface of NbS₂/MoS₂ heterostructure approaches the superlubricity threshold of 0.001, highlighting its superlubricity. Additionally, it has been proven that the Moiré superlattice formed by interlayer distortion can effectively reduce interlayer friction, and the sliding energy barrier of the rotating NbS₂/TiS₂ and NbS₂/MoS₂ heterostructures is reduced to about 1/100 and 1/500 of the initial heterostructure, respectively. These predictions underscore the potential of NbS₂/MoS₂ heterostructures as promising candidates for atomically thin solid lubricants.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 14","pages":"6138 - 6150"},"PeriodicalIF":3.5,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143850957","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}