Results in Surfaces and Interfaces最新文献

{"title":"Synthesis, experimental and theoretical analysis of 5-aminoindazole derivatives for corrosion prevention of mild steel in sulfuric acid across different temperatures","authors":"Reginald K. Mothapo,&nbsp;Kgethego Bokgobelo,&nbsp;Kgaugelo Selowa,&nbsp;Thabo Pesha,&nbsp;Bryan P. Moloto,&nbsp;Tlabo C. Leboho","doi":"10.1016/j.rsurfi.2025.100614","DOIUrl":"10.1016/j.rsurfi.2025.100614","url":null,"abstract":"<div><div>Corrosion inhibition investigations were undertaken to assess the efficacy of 5-aminoindazole (<strong>IND</strong>) and its derivatives in preventing corrosion of mild steel within 0.5 M H₂SO₄ solutions. The derivatives underwent synthesis, purification, and characterization through Nuclear Magnetic Resonance (NMR) spectroscopy, which revealed the anticipated carbon and proton signals. Subsequent to synthesis, gravimetric analysis was conducted, revealing that 2-(((1H-indazol-6-yl)amino)methyl)-4-chloro-6-methoxyphenol (<strong>IND–10</strong>), achieving an efficiency of 86.97 %, demonstrated superior inhibition efficiency at 323 K compared to 5-aminoindazole (<strong>IND</strong>) (33.68 %) and 2-(((1H-indazol-6-yl)amino)methyl)-4,6-dinitrophenol (<strong>IND–01</strong>) (51.97 %). Adsorption isotherm and thermodynamic evaluations indicated that <strong>IND–10</strong> adhered to a chemisorption mechanism, whereas <strong>IND</strong> and <strong>IND–01</strong> displayed mixed inhibition (chemisorption-physisorption) at reduced temperatures according to the Langmuir isotherm. Notably, <strong>IND</strong> did not conform well to the Langmuir model but corresponded more closely with the Frumkin isotherm, implying a predominant physisorption mechanism. Analysis of the Frumkin data showed that Gibbs free energy decreased with higher temperatures, while lateral interactions increased. The inhibitor increased activation energy, forming a protective metal layer as its concentration lessened. This was confirmed by Scanning Electron Microscope images displaying inhibitor adherence to the metal surface, offering corrosion protection. Quantum chemical analysis corroborated these findings through energy gap (Δ<em>E</em>) calculations, which demonstrated greater stability for <strong>IND–10</strong> with Δ<em>E</em> = 2.95 eV, compared to IND (3.05 eV) and <strong>IND–01</strong> (3.03 eV). This analysis suggested that <strong>IND–10</strong> served as a more efficacious inhibitor relative to both <strong>IND</strong> and <strong>IND–01</strong>.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"20 ","pages":"Article 100614"},"PeriodicalIF":0.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144766831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Gas-sensitive properties of PECVD nanocrystalline Ga2O3 thin films doped with Zn","authors":"Aleksei Almaev ,&nbsp;Leonid Mochalov ,&nbsp;Dmitry Almaev ,&nbsp;Ekaterina Slapovskaya ,&nbsp;Sergey Telegin ,&nbsp;Bogdan Kushnarev ,&nbsp;Pavel Yunin","doi":"10.1016/j.rsurfi.2025.100633","DOIUrl":"10.1016/j.rsurfi.2025.100633","url":null,"abstract":"<div><div>Nanocrystalline Ga₂O₃ thin films doped by Zn (nc-ZGO) were synthesized by plasma-enhanced chemical vapor deposition. Their gas-sensitive properties have been comprehensively investigated. The thin films exhibit high response and operation speed under exposure to industry-relevant gases such as CO, H₂, NH₃ and NO₂. The highest responses are achieved under H₂ exposure. The responses to 500 ppm and 10⁴ ppm of H₂ are 2.99 a. u. and 24.5 a. u., respectively, at the maximum response temperature of 500 °C. The sum of the response and recovery times do not exceed 27.4 s. The nc-ZGO thin films show only a weak drift of their gas-sensitive characteristics during long-term exposure to CO, H₂, and NO₂ as well as and a weak dependence of the gas-sensitive characteristics on the humidity level in the 10–50 % relative humidity range. A mechanism of the sensing effect of nc-ZGO thin films is proposed within the current paradigm.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"20 ","pages":"Article 100633"},"PeriodicalIF":0.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145009958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rubber leaf extract: A green inhibitor for mild steel corrosion in 1.0 M HCl medium, response surface analyzer and electrochemical approach","authors":"O.G. Echem ,&nbsp;V.I. Chukwuike ,&nbsp;T. Tubonemi ,&nbsp;V.C. Anadebe ,&nbsp;F.E. Abeng ,&nbsp;L.G. Barine","doi":"10.1016/j.rsurfi.2025.100607","DOIUrl":"10.1016/j.rsurfi.2025.100607","url":null,"abstract":"<div><div>Strong adsorption is a requisite surface property for long time protection of inhibitors. The present research investigates the potential of the anchoring sites and water expelling characteristics of rubber leave extract on mild steel for corrosion protection in HCl environment. Using rubber leave promises to be advantageous not only because of its abundance but also environmentally friendly. Based on this, atomic absorption spectroscopy (AAS), gasometric, weight loss, electrochemical and surface imaging techniques were employed to investigate the efficiency of the inhibitor extract. Three isotherm models were utilized to explain the adsorption characteristic of the inhibitor. The results showed comparatively high inhibition efficiencies from the techniques as follows; weight loss (96.98 %), AAS (99.68 %), electrochemical (96.52 %) and gasometric (86.53 %). The minor deviation in the case of the gasometric method was attributed to errors relating to unavoidable gas leakage. The overall protection efficiency can be linked to the material adhesion and high electrical resistance (48000 Ω) of rubber extract. The scanning electron microscopy (SEM) shows a surface morphology of the adsorbent molecules on the mild steel surface according to Langmuir and Temkin adsorption isotherms.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"20 ","pages":"Article 100607"},"PeriodicalIF":0.0,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144713735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Novel Mesoporous Taurine-Doped Polyaniline/PVA Electrospun Composite Nanofiber: Comprehensive Study","authors":"M.S. Archana ,&nbsp;C.S. Chitra Lekha ,&nbsp;S. Deepa ,&nbsp;Nandakumar Kalarikkal","doi":"10.1016/j.rsurfi.2025.100610","DOIUrl":"10.1016/j.rsurfi.2025.100610","url":null,"abstract":"<div><div>Conductive polymers, in particular polyaniline (PANI), are gaining a lot of attention because of their unique combination of electrical conductivity, flexibility, and tunable properties, which make them ideal for applications in energy storage, sensors, and flexible electronics. However, PANI's limited mechanical properties, poor machinability, and conductivity loss in physiological environments make them unsuitable for practical use. To overcome these problems, PANI is frequently incorporated into polymer composites. In order to improve PANI's properties, taurine (Tau), a biocompatible amino acid, is doped into PANI, and T-PANI/PVA composite nanofibers are made by electrospinning. Taurine improves PANI's conductivity and biocompatibility by acting as an efficient bioactive dopant with its sulfonic acid group. X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), field emission scanning electron microscopy (FESEM), Brunauer–Emmett–Teller (BET) surface area analysis, UV–visible spectroscopy, photoluminescence (PL) spectroscopy, Thermogravimetric analysis (TGA) and mechanical studies were among the methods used to systematically characterize the electrospun (T- PANI/PVA) composite fibers. According to the findings, taurine doping enhances the nanofibers' mechanical stability, electrical conductivity, and thermal characteristics along with improved ion transport and molecular alignment. These results imply that taurine-doped PANI/PVA nanofibers, equipped with the conductive qualities of PANI, mechanical strength of PVA and the biocompatibility of taurine, provide a potential platform for flexible electronics, sensors, and biomedical applications.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"20 ","pages":"Article 100610"},"PeriodicalIF":0.0,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144704410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"CuO-modified chitosan beads: An efficient adsorbent for nitrate ion removal from aqueous solution for industrial applications","authors":"Subhasini Dhorma Chenchu,&nbsp;Meenal Deo","doi":"10.1016/j.rsurfi.2025.100609","DOIUrl":"10.1016/j.rsurfi.2025.100609","url":null,"abstract":"<div><div>Nitrate contamination in water sources, primarily due to excessive fertilizer use and agricultural runoff, poses serious environmental and health risks. In this study, CuO-modified chitosan beads were developed as a sustainable, cost-effective, and eco-friendly adsorbent for efficient nitrate ion removal from aqueous solutions. Chitosan, a naturally derived biopolymer, was reinforced with varying concentrations of copper oxide nanoparticles (5 %, 25 %, and 50 % in wt %) to enhance active adsorption sites for nitrate ions. The synthesized beads were characterized using XRD, FTIR, and SEM-EDS to confirm structural parameters, functional groups, and surface morphology. The nitrate ion adsorption was a pH-dependent process with pH_PZC at 7.0. The highest nitrate ion adsorption efficiency was achieved at pH 4 of 93.85 % with an adsorption capacity of 9.16 mg/g for Chitosan beads with 25 % CuO. Under neutral pH, the nitrate ion adsorption efficiency was ∼82.2 % with an adsorption capacity of 8.2 mg/g. The isotherm and kinetic analysis revealed a combination of chemisorption at low concentrations (pseudo-second-order) and physisorption at higher concentrations (pseudo-first-order), with the Temkin model (R² = 0.97) indicating the decreasing adsorption energy on heterogeneous surface. FTIR analysis after nitrate ion adsorption confirmed the involvement of surface functional groups in the nitrate adsorption process. These results demonstrate that CuO-modified chitosan beads are effective, eco-friendly adsorbents for nitrate ion removal from water.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"20 ","pages":"Article 100609"},"PeriodicalIF":0.0,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144702999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fabrication of ZnAl layered double hydroxide films on recycled aluminum sheets and phosphate removal","authors":"Soontorn Suvokhiaw ,&nbsp;Cholaphan Deeleepojananan ,&nbsp;Kittipong Konraeng ,&nbsp;Kritapas Laohhasurayotin ,&nbsp;Cheewita Suwanchawalit","doi":"10.1016/j.rsurfi.2025.100606","DOIUrl":"10.1016/j.rsurfi.2025.100606","url":null,"abstract":"<div><div>Phosphate removal is a process essentially required for the treatment of natural and wastewater. It is widely known that such removal process exploiting adsorption mechanism is one of the most effective methods. A type of anionic clay named zinc aluminum layered double hydroxide (ZnAl-LDH) with a few numbers of its series was synthesized on an aluminum substrate using a microwave-assisted method at a microwave power of 300 W, 450 W, and 600 W. The as-received LDHs were examined to confirm the layered structure and intercalating ions through X-ray diffraction (XRD), field emission-scanning electron microscopy (FE-SEM), X-ray photoelectron spectroscopy (XPS), and Fourier-transformed infrared spectroscopy (FT-IR). Their BET surface areas were also determined. Experiments on phosphate adsorption were conducted by varying the LDHs dosage, contact time, and the initial pH of the phosphate solution. Point of zero charge (pzc) and FT-IR analyses indicated that phosphate abstraction by LDHs involved electrostatic attraction, ligand exchange, and ion exchange. Of all studied LDH samples, the ZnAl-LDH prepared at 600 W exhibited the highest phosphate removal efficiency mainly due to its larger surface area. Langmuir isotherm also represents the equilibrium adsorption onto ZnAl-LDHs-600W. The calculated maximum adsorption capacity of ZnAl-LDHs-600W was 658 mg/g. In addition, the phosphate removal efficiency of the prepared ZnAl-LDHs was not affected by interference of other anions (Cl⁻, NO₃⁻, BrO₄⁻, CO₃²⁻, SO₄²⁻, and I⁻) during adsorption.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"20 ","pages":"Article 100606"},"PeriodicalIF":0.0,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144704409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Deposition of AlCuFe and AlCuFeCr thin films on Ti6Al4V alloy and investigating microstructural and tribological characteristics","authors":"M. Abaei ,&nbsp;M. Farvizi ,&nbsp;M.R. Rahimipour ,&nbsp;M.J. Eshraghi","doi":"10.1016/j.rsurfi.2025.100604","DOIUrl":"10.1016/j.rsurfi.2025.100604","url":null,"abstract":"<div><div>Ti–6Al–4V alloy has extensive use in different industries, including aerospace and automotive. Nevertheless, despite the excellent features of this alloy, it shows high susceptibility to the wear process, restricting its applications. This paper focused on sputtering the AlCuFe and AlCuFeCr thin films on Ti–6Al–4V alloy. After the deposition process, the annealing was carried out for 2 h at 700 °C under a protective atmosphere. The microstructural studies confirmed the formation of crack-free 5 and 4.5 μm-thick Al–Cu–Fe and Al–Cu–Fe–Cr coatings, respectively. A five-facet morphology appeared on the surface of the Al–Cu–Fe thin films, which is a sign of quasicrystal (QC) development. The average contact angle (CA) for the AlCuFe and AlCuFeCr thin films was 98 and 87°, respectively. CA results of thin films indicate their lower wettability compared to the substrate. The coefficient of friction (COF) of AlCuFe and AlCuFeCr thin films was measured to be about 0.15, which is much lower than the Ti–6Al–4V substrate. The AlCuFe and AlCuFeCr coatings showed much better wear resistance compared to the Ti–6Al–4V substrate.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"20 ","pages":"Article 100604"},"PeriodicalIF":0.0,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144694482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of Gambir extract as green corrosion inhibitor for API 5L X65 steel in 3.5 % NaCl solution containing 100 ppm NaHCO3","authors":"A.F. Suryono ,&nbsp;M.N. Ilman ,&nbsp;P.T. Iswanto ,&nbsp;T. Ariyanto","doi":"10.1016/j.rsurfi.2025.100600","DOIUrl":"10.1016/j.rsurfi.2025.100600","url":null,"abstract":"<div><div>The corrosion inhibition characteristics of <em>Gambir extract</em> (GE) as a green inhibitor for API 5L X65 pipeline steel in a 3.5 % NaCl solution containing 100 ppm NaHCO₃ at temperature of 25 °C (298 K) have been investigated. The purpose of the present work was to evaluate the potency of GE for protection of the steel from sweet corrosion which often occurs in oil and gas industries. The results of potentiodynamic polarization (PP) and electrochemical impedance spectroscopy (EIS) demonstrated that GE was a mixed-type inhibitor having a maximal inhibition efficiency of 89.7 % based on PP which was equivalent to 90.5 % based on EIS at a concentration of 700 ppm. The adsorption mechanism of GE on the API 5L X65 pipeline steel surface obeyed the Langmuir adsorption isotherm equation. Furthermore, the results of AFM/SEM examination demonstrated that the steel samples in the solution with GE were smoother than those immersed in the blank solution. Based on the quantum chemical calculations, the inhibition effect of GE was mainly attributable to its phytoconstituents, namely catechin and tannin.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"20 ","pages":"Article 100600"},"PeriodicalIF":0.0,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144656773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Metal-dielectric nanostructures with quadrupolar response for sensing applications","authors":"Aswathy P. Vijayan,&nbsp;Bindu Krishnan,&nbsp;A.P. Jayadevan","doi":"10.1016/j.rsurfi.2025.100605","DOIUrl":"10.1016/j.rsurfi.2025.100605","url":null,"abstract":"<div><div>Metal-dielectric core-shell nanoparticles have attracted a great amount of interest in nano photonics due to the wide variety of applications. The aim of this study was to look at the effect of refractive index of the surrounding medium on Absorption Cross Section (ACS) of core-shell structures with various combinations of interfaces such as Ag–TiO₂, TiO₂–Ag, TiO₂–Ag–TiO₂. SPR peak exhibited red-shift with an increase in the refractive index of the medium. When size of the core metal is increased, besides dipolar peak, other multipolar peaks emerge. By optimising parameters such as core radius and shell thickness, quadrupolar peak can be made stronger. Quadrupolar peak is sharper compared to dipolar peak which yields higher sensitivity. Besides the shift of quadrupolar peak of SPR with respect to refractive index exhibits more linearity. Sensitivity can be optimized by trying different combinations and their parameters. Using simulation, we demonstrated the 3 systems optimized sensitivity for shell thickness of 20 nm, 15 nm, 10 nm and 5 nm. And for core-shell systems, maximum sensitivity optimized for 5 nm shell thickness and for multilayer case 20 nm outer shell thickness is optimized. These optimized metal-dielectric nanostructures are especially suited for biosensing applications.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"20 ","pages":"Article 100605"},"PeriodicalIF":0.0,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144663095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The effect of thin coating on the formation of the oxide-scale layer on FeCrAl metal fibers at elevated temperature","authors":"Abdullah A. Alazemi,&nbsp;Abdulaziz A. Alhassan,&nbsp;Osama M. Ibrahim","doi":"10.1016/j.rsurfi.2025.100601","DOIUrl":"10.1016/j.rsurfi.2025.100601","url":null,"abstract":"<div><div>This study investigates the development and impact of thin coatings on the formation of a protective oxide-scale layer on FeCrAl metal fibers. The objective is to examine the effects of applying a thin coating layer using nano-oxide colloidal solutions on the oxidation rate and surface microstructure of 40 μm FeCrAl metal fibers. Two nano-oxide particles dispersed in water-based solutions were considered: (1) Aluminum hydroxide oxide (AlOOH) with nanoparticle sizes ranging from 10 to 45 nm, and (2) Zirconium oxide (ZrO₂) with nanoparticle sizes smaller than 100 nm. The samples' weight gain and oxidation rate were measured using Thermo-Gravimetric Analysis (TGA) during a 4-h isothermal heating process at 800 °C. Additionally, a Scanning Electron Microscope (SEM) was used to analyze the surface and cross-sectional micromorphology, while X-ray diffraction (XRD) was employed to examine the crystalline structure on the surface of the FeCrAl fiber. TGA results indicated that the thin-coated metal fibers effectively reduced the oxidation rate compared to the uncoated baseline fibers. Specifically, the thin-coated samples with AlOOH and ZrO₂ showed a 21 % and 42 % reduction in weight change after five isothermal heat treatment cycles, respectively, compared to the baseline metal fibers.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"20 ","pages":"Article 100601"},"PeriodicalIF":0.0,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144656777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}