Materials Research BulletinPub Date : 2026-04-01Epub Date: 2025-12-23DOI: 10.1016/j.materresbull.2025.113975
Xiaopeng Miao , Fanshi Meng , Xinxin Xu , Jiahui Wang , Xinyu Wang , Jian Tian
{"title":"MOF-derived nitrogen-doped carbon nanotubes supported CuNi alloy for electrocatalytic reduction of CO2 to CO","authors":"Xiaopeng Miao , Fanshi Meng , Xinxin Xu , Jiahui Wang , Xinyu Wang , Jian Tian","doi":"10.1016/j.materresbull.2025.113975","DOIUrl":"10.1016/j.materresbull.2025.113975","url":null,"abstract":"<div><div>CuNi alloy nanoparticles loaded on nitrogen-doped carbon nanotubes (CuNi@N<img>C) were synthesized by using a Cu-Ni binary metal MOF as the precursor and adding melamine as an additional nitrogen source through high-temperature pyrolysis. At -1.0 V <em>vs.</em> RHE, the Faraday efficiency (FE) of CO produced by CuNi@N<img>C reaches 95.5%, which is much higher than that of Cu@N<img>C(FE<sub>CO</sub>: 14.0%) and Ni@N<img>C(FE<sub>CO</sub>: 37.0%). <em>In-situ</em> infrared spectra shows that the excellent ECO<sub>2</sub>RR property of CuNi@N<img>C is attributed to the reconfiguration of the electronic structure of the binary alloy catalyst, which increases the adsorption energy for CO<sub>2</sub> and promotes the desorption of *CO. This study explores and expands new paths for the synthesis of alloy catalysts.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"197 ","pages":"Article 113975"},"PeriodicalIF":5.7,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145881055","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":"Two-dimensional layered molybdenum sulfide modified cuprous oxide/zinc oxide nanorod non-enzymatic glucose sensing electrode: Nodule mechanism and bandgap matching","authors":"Hsi-Chao Chen , An-Hsiung Zheng , Ying-Sheng Lin , Hui-Hsiu Chang","doi":"10.1016/j.materresbull.2025.113947","DOIUrl":"10.1016/j.materresbull.2025.113947","url":null,"abstract":"<div><div>Single zinc oxide nano-rods (ZnO NRs) and sputtered molybdenum (Mo) ZnO NRs were prepared, respectively, through the same sulfurization process. The purpose of doing so was to obtain diffusion reaction blocked zinc sulfide (ZnS) and nano-2D layered molybdenum sulfide (MoS<sub>2</sub>) modified ZnO NRs. Following this, electroplated cuprous oxide (Cu<sub>2</sub>O) was employed to complete two hetero-structure non-enzymatic glucose sensing electrodes. Based on the experimental results, 2D layered MoS<sub>2</sub>-modified ZnO NRs grow into a bamboo-like nodular structure to increase not only the contact area but also the independent electron exchange channels. Comparing the two modified electrodes of ZnS and MoS<sub>2</sub>, the sensitivity of cyclic voltammetry (CVs) increased from 396 to 680.4, and the fitting superiority R<sup>2</sup> value increased from 0.985 to 0.993. Finally, the chronoamperometry measurement of the MoS<sub>2</sub> modified sensing electrode obtained two linear ranges of low and high concentrations, which are 1600 (0–5.556 mM) and 722.3 μAmM<sup>-1</sup> cm<sup>-2</sup> (5.556 -11.11 mM), respectively.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"197 ","pages":"Article 113947"},"PeriodicalIF":5.7,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145798284","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}
Materials Research BulletinPub Date : 2026-04-01Epub Date: 2025-12-02DOI: 10.1016/j.materresbull.2025.113933
Faiza Mokhtari, Laura Wollesen, Abdeldjelil Nehari, Kheirreddine Lebbou
{"title":"Experimental and Numerical Analysis on Bubble Behavior in sapphire Rods grown by Micro-Pulling-Down","authors":"Faiza Mokhtari, Laura Wollesen, Abdeldjelil Nehari, Kheirreddine Lebbou","doi":"10.1016/j.materresbull.2025.113933","DOIUrl":"10.1016/j.materresbull.2025.113933","url":null,"abstract":"<div><div>This study integrates experimental and numerical approaches to reveal the mechanisms controlling bubble transport, distribution, and entrapment in sapphire single crystals grown by the micro-pulling-down (µ-PD) technique. Sapphire rods (diameter: 3 mm) were grown from a molybdenum crucible under argon atmosphere using pulling rates of 0.25–2.5 mm/min. A global finite element model, incorporating precise furnace geometry, crucible, and after heater, was developed and validated experimentally with excellent agreement. A systematic analysis of pulling rate, meniscus height (h<sub>m</sub>), and crystal-to-die diameter ratio (D<sub>rod</sub>/D<sub>die</sub>) demonstrates that bubble incorporation is governed by meniscus geometry and melt convection rather than pulling rate alone. When the rod diameter matches exactly the die (D<sub>rod</sub>=D<sub>die</sub>), the meniscus is nearly cylindrical with low height and curvature, decreasing the Marangoni convections at the periphery and the forced convection in the core. This configuration yields at low pulling rates (e.g., 0.25 mm/min), bubble-free crystals. Conversely, D<sub>rod</sub><D<sub>die</sub> produces a taller and curved meniscus, that are ultimately increasing the bubble encapsulation. Peripheral bubbles are driven by Marangoni convection while core bubbles arise from downward flows (forced convection) scaling linearly with pulling rate. These insights establish that obtaining bubble-free crystals requires D<sub>rod</sub>≈D<sub>die</sub> and lowered pulling rates to reduce meniscus height h<sub>m</sub> and thereby convective intensity.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"197 ","pages":"Article 113933"},"PeriodicalIF":5.7,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145749720","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 crystal orientation on sintering and physical properties of Al3BC3","authors":"Ryosuke Maki , Shunta Matsumura , Yuta Yamawaki , Eri Takahashi , Satofumi Maruyama , Tomoyuki Maeda , Hatsuo Taira , Yoshihiro Kusano","doi":"10.1016/j.materresbull.2025.113833","DOIUrl":"10.1016/j.materresbull.2025.113833","url":null,"abstract":"<div><div>The ternary metal borocarbide Al<sub>3</sub>BC<sub>3</sub> forms plate-shaped particles having a crystallographic orientation along the <em>c</em>-axis and is expected to have low resistance to shear strain, similar to layered ternary carbides. This work demonstrates the first-ever synthesis of a textured polycrystalline Al<sub>3</sub>BC<sub>3</sub> sample with anisotropic mechanical properties. The sintering characteristics of monophasic Al<sub>3</sub>BC<sub>3</sub> were evaluated and a dense specimen with some degree of <em>c</em>-axis orientation was produced via spark plasma sintering. Nanoscale hardness and modulus maps of an Al<sub>3</sub>BC<sub>3</sub> grain were generated using a nanoindenter and the hardness along the <em>c</em>-axis was shown to be approximately twice that in the basal plane direction. The elastic modulus along the <em>c</em>-axis was also approximately 1.25 times that along the basal plane, in good agreement with predicted anisotropic Young's moduli. Microstructural observations showed that fracture surfaces had laminated structures similar to those of layered ternary carbides, indicating potential applications as damage-tolerant materials.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"195 ","pages":"Article 113833"},"PeriodicalIF":5.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145322246","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":"Engineering white light and thermoluminescence dosimetric response in Eu³⁺ and Dy³⁺ co-doped ZnAl2O4 nanophosphors","authors":"Vikas , Vikas Lahariya , Aditya Yadav , Govind Gupta","doi":"10.1016/j.materresbull.2025.113839","DOIUrl":"10.1016/j.materresbull.2025.113839","url":null,"abstract":"<div><div>This study presents the dual photoluminescence (PL) and thermoluminescence (TL) behaviour of Eu<sup>3+</sup>:Dy<sup>3+</sup> co-doped ZnAl<sub>2</sub>O<sub>4</sub> phosphors synthesized via a microwave combustion method. XRD with Rietveld refinement and HRTEM confirmed the crystalline spinel phase, while EDAX verified dopant incorporation. The co-doping enhanced luminescence, yielding efficient white light emission with CIE coordinates (x = 0.36, y = 0.30), high CRI, suitable CCT, and a quantum efficiency of 64%. PL analysis indicated dipole–dipole mediated energy transfer from Dy<sup>3+</sup> to Eu<sup>3+</sup> with ∼44% efficiency. TL measurements displayed a broad glow peak near 418 K across various γ-irradiation doses, with kinetic analysis providing activation energy and trapping parameters. The TL response showed a linear dose–intensity relationship, confirming the phosphor’s potential for γ-radiation dosimetry. The combined white light generation capability and dosimetric performance highlight ZnAl<sub>2</sub>O<sub>4</sub>:Eu<sup>3+</sup>,Dy<sup>3+</sup> as a promising multifunctional material for solid-state lighting and radiation dosimetry applications.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"195 ","pages":"Article 113839"},"PeriodicalIF":5.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145417729","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}
Materials Research BulletinPub Date : 2026-03-01Epub Date: 2025-10-10DOI: 10.1016/j.materresbull.2025.113834
Wilarachchige D.C.B. Gunatilleke , Thomas Doert , George S. Nolas
{"title":"Low temperature thermal properties of Cs2AgBiBr6","authors":"Wilarachchige D.C.B. Gunatilleke , Thomas Doert , George S. Nolas","doi":"10.1016/j.materresbull.2025.113834","DOIUrl":"10.1016/j.materresbull.2025.113834","url":null,"abstract":"<div><div>An understanding of the thermal properties of materials is integral to any fundamental investigation and is of interest for technologically significant applications. Furthermore, an understanding of low thermal conductivity materials continues to be of fundamental importance. In this work, phase-pure dense polycrystalline Cs<sub>2</sub>AgBiBr<sub>6</sub> was prepared following extensive investigations into preventing the formation of impurity phases upon densification. This allowed for an investigation of the low temperature thermal properties of Cs<sub>2</sub>AgBiBr<sub>6</sub>, which revealed a low Debye temperature of 80 K and an Einstein temperature of 21 K, associated with low-frequency soft modes, that result in low thermal conductivity. This work enhances the ongoing research on inorganic perovskites and elucidates the low temperature thermal properties that will aid investigations of this and similar perovskites.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"195 ","pages":"Article 113834"},"PeriodicalIF":5.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145322247","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}
Materials Research BulletinPub Date : 2026-03-01Epub Date: 2025-10-07DOI: 10.1016/j.materresbull.2025.113830
Khalil Akhtar , Faisal K. Algethami , Jameel Ahmed Baig , Imam Bakhsh Solangi , Hassan Imran Afridi , Latif Ullah Khan , Yasmeen G. Abou El-Reash , Sajjad Hussain
{"title":"Synthesis of cobalt-doped nickel ferrite as a reusable photocatalyst for efficient degradation of industrial dyes","authors":"Khalil Akhtar , Faisal K. Algethami , Jameel Ahmed Baig , Imam Bakhsh Solangi , Hassan Imran Afridi , Latif Ullah Khan , Yasmeen G. Abou El-Reash , Sajjad Hussain","doi":"10.1016/j.materresbull.2025.113830","DOIUrl":"10.1016/j.materresbull.2025.113830","url":null,"abstract":"<div><div>In the current work, cobalt-doped nickel ferrite (Co<sub>0.5</sub>-Ni<sub>0.5</sub>Fe<sub>2</sub>O<sub>4</sub>) was synthesized and applied for photolytic catalytic degradation of industrial dyes including, rhodamine 6G (Rh-G) and crystal violet (CV) by sunlight irradiation. The morphological and structural characterizations of Co<sub>0.5</sub>-Ni<sub>0.5</sub>Fe<sub>2</sub>O<sub>4</sub> confirmed rough and porous morphology, and cubic spinel crystalline structure with the point of zero charge at 6.56 pH. Different experimental parameters including effect of light, pH, contact time, catalyst dose, and initial concentration of dye were optimized to obtain maximum efficiency of catalyst. The Co<sub>0.5</sub>-Ni<sub>0.5</sub>Fe<sub>2</sub>O<sub>4</sub> showed excellent efficiency for photocatalytic degradation of Rh-G and CV with percentage removal of 96.9, and 94.5 % in 60 min for CV and Rh-G degradation, respectively. The reusability of synthesized was also evaluated and showed < than 6% efficiency up to ten cycles. This work offers a cost-effective and eco-friendly solution for industrial wastewater treatment by Co<sub>0.5</sub>-Ni<sub>0.5</sub>Fe<sub>2</sub>O<sub>4</sub> to achieve efficient degradation of dyes with excellent reusability.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"195 ","pages":"Article 113830"},"PeriodicalIF":5.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145322248","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":"Development of multifunctional red-emitting Eu3+ activated BaMoO4 nanophosphors for dual-mode applications in electrochemical sensing and latent fingerprint visualization","authors":"H.S. Yogananda , S.R. Yashodha , Akshay Arjun , R.B. Basavaraj , N.P. Bhagya , G.K. Prashanth , H.S. Lalithamba , C.R. Ravikumar , P.K. Sharanya","doi":"10.1016/j.materresbull.2025.113831","DOIUrl":"10.1016/j.materresbull.2025.113831","url":null,"abstract":"<div><div>The Phosphor Ba<em><sub>1-x</sub></em>MoO<sub>4</sub>:<em>x</em>Eu<sup>3+</sup> (0.00 ≤ <em>x</em> < 0.09) prepared by low-cost solution combustion method were in a space group of I4<sub>1</sub>/a and crystalized in tetragonal phase. The intensity of photoluminescence was found to be maximum for the transition <sup>5</sup>D<sub>0</sub>→<sup>7</sup>F<sub>2</sub> (615 nm) at an excitation wavelength of 394 nm with CIE color coordinates (0.6525, 0.3471) making it a potentially useful substance for red phosphor materials. Electrochemical impedance spectroscopy (EIS) research has demonstrated that the decreased charge transfer resistance of Ba<em><sub>1-x</sub></em>MoO<sub>4</sub>:<em>x</em>Eu<sup>3+</sup> (0.00 ≤ <em>x</em> < 0.09) is responsible for their improved behaviour. When lithium was used as an analyte, Ba<em><sub>1-x</sub></em>MoO<sub>4</sub>:<em>x</em>Eu<sup>3+</sup> (0.00 ≤ <em>x</em> < 0.09) demonstrated improved sensitivity in cyclic voltammetry studies at various scan rates. Further, the use of Ba<em><sub>1-x</sub></em>MoO<sub>4</sub>:<em>x</em>Eu<sup>3+</sup> (<em>x</em> = 0.07) powder as a dusting agent in fingerprint applications suggest that nanophosphor-based techniques offer a promising advancement for non-destructive and high-resolution fingerprint imaging across diverse surfaces.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"195 ","pages":"Article 113831"},"PeriodicalIF":5.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145322286","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}
Materials Research BulletinPub Date : 2026-03-01Epub Date: 2025-11-13DOI: 10.1016/j.materresbull.2025.113892
Dandan Wang , Jing Li , Yuan Xu , Changyu Lu , Huan Ma , Jifeng Guo , Liping Wang
{"title":"Visible light-driven photocatalytic degradation of BiOBr/BiVO4 S-scheme: Performances, DFT calculations and mechanism","authors":"Dandan Wang , Jing Li , Yuan Xu , Changyu Lu , Huan Ma , Jifeng Guo , Liping Wang","doi":"10.1016/j.materresbull.2025.113892","DOIUrl":"10.1016/j.materresbull.2025.113892","url":null,"abstract":"<div><div>Bismuth halide materials are promising semiconductors due to unique layered and band structures. However, the monolithic nature of bismuth halide-based materials limits their applications because of rapid photogenerated carrier recombination and low reuse rates. To address this, the S-scheme BiOBr/BiVO<sub>4</sub> was fabricated via straightforward two-step synthesis. SEM and TEM analyses confirmed intimate interfacial contact between BiOBr and BiVO<sub>4</sub>, and BET measurements indicated the preservation of well-defined mesoporous structure in the composite. 3:1-BiOBr/BiVO<sub>4</sub>(3-BBV) displayed enhanced visible-light absorption and improved charge separation efficiency, supported by electrochemical impedance spectroscopy (EIS) showing notable decrease in charge transfer resistance. During photocatalytic tetracycline (TC) degradation, the 3-BBV sample exhibited first-order rate constants 2.61 and 3.70 times greater than those of pristine BiOBr and BiVO<sub>4</sub>, respectively. Furthermore, the composite demonstrated remarkable recyclability, maintaining 71.48 % of its initial degradation efficiency over multiple cycles. Free radical trapping experiments revealed that h⁺ and·O<sub>2</sub><sup>-</sup> serve as the dominant reactive species. Together with DFT simulations, these results confirm that the performance enhancement originates from S-scheme charge transfer mechanism driven by internal electric field, which efficiently separates and utilizes photogenerated carriers. This study offers a practical approach for developing efficient and durable S-scheme photocatalysts for the treatment of antibiotic-contaminated wastewater.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"196 ","pages":"Article 113892"},"PeriodicalIF":5.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145532380","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}
Materials Research BulletinPub Date : 2026-03-01Epub Date: 2025-11-14DOI: 10.1016/j.materresbull.2025.113893
Qingtao Wang , Yikun Xian , Zhenyang Shen
{"title":"Research progress on the preparation of MXenes and their composites for oxygen reduction reaction","authors":"Qingtao Wang , Yikun Xian , Zhenyang Shen","doi":"10.1016/j.materresbull.2025.113893","DOIUrl":"10.1016/j.materresbull.2025.113893","url":null,"abstract":"<div><div>Two-dimensional transition metal carbides and nitrides (MXenes) hold great potential in oxygen reduction reaction (ORR) electrocatalysis due to their unique layered structure. This paper reviews their fabrication methods (traditional hydrofluoric acid etching and emerging fluorine-free etching) and comparatively analyzes the advantages and disadvantages of each regarding etching efficiency, product quality, and safety. It focuses on the construction of MXenes-based composites (e.g., composites with metals, MOF derivatives, and carbon materials) to enhance electrocatalytic performance, and explores their ORR electrocatalytic properties as well as the structure-function relationship. By summarizing the progress in MXenes fabrication and the application of their composites in ORR, this paper provides a reference for developing high-performance, low-cost ORR electrocatalysts and advances relevant fields.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"196 ","pages":"Article 113893"},"PeriodicalIF":5.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145578380","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}