Electrochimica Acta最新文献

{"title":"Scaling relations and catalytic descriptor for the nitrogen reduction on single-atom catalysts","authors":"Matteo Spotti ,&nbsp;Kevin Maineri ,&nbsp;Francesc Viñes ,&nbsp;Francesc Illas ,&nbsp;Giovanni Di Liberto ,&nbsp;Gianfranco Pacchioni","doi":"10.1016/j.electacta.2025.147389","DOIUrl":"10.1016/j.electacta.2025.147389","url":null,"abstract":"<div><div>Single-atom catalysis is a rapidly advancing frontier in catalysis research, with the electrochemical synthesis of NH₃ from N₂ representing a key transformation. In this study, we conducted a computational investigation of a series of single-atom catalysts (SACs), each composed of a single metal atom anchored on nitrogen-doped graphene, to enhance understanding of their complex chemistry in the nitrogen reduction reaction. The results indicate that the most likely pathway depends on the nature of the metal atom and can differ from the classical pathways found on extended catalytic surfaces. Besides electrochemical intermediates, the formation of molecular adducts such as *N₂ and *NH₃ cannot be neglected. Interestingly, it is possible to correlate the stability of reaction intermediates via scaling relations with a simple yet practical descriptor, depending on the stability of two species only, *NNH and *NH₂. This descriptor enables us to rationalize the volcano-shaped dependence of the nitrogen reduction reaction's rate-limiting step and may serve as a useful proxy for screening large catalyst databases, providing qualitative and semi-quantitative insights for more advanced refinement. Last, we show that the *N₂ and *NH₃ chemical adsorbates must be explicitly considered in order to reliably predict the catalyst behavior.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"542 ","pages":"Article 147389"},"PeriodicalIF":5.6,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145059724","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 developments in electrochemical sensors for the detection and real-time monitoring of non-steroidal anti-inflammatory drugs","authors":"Zeynep Alakus, Ensar Piskin, Fatma Budak, S. Irem Kaya, Ahmet Cetinkaya, Sibel A. Ozkan","doi":"10.1016/j.electacta.2025.147392","DOIUrl":"https://doi.org/10.1016/j.electacta.2025.147392","url":null,"abstract":"The most commonly used medications to control fever, pain, and inflammation are non-steroidal anti-inflammatory drugs (NSAIDs). However, excessive use of them can have negative health consequences on humans, and their uncontrolled disposal in ecosystems raises serious environmental issues. Electrochemical sensors offer enormous potential for the sensitive, selective, effective, and economical detection of pharmaceuticals in complicated media, surpassing the drawbacks of conventional detection techniques. An overview of the most recent advancements in electrochemical sensors that use nanoscale materials as electrode modifiers that target NSAIDs, such as metallic nanomaterials, carbon-based materials, and hybrid materials, is provided in this review. Analysis of real samples, sensor/analyte interactions, and various electrode fabrication techniques was particularly taken into consideration. The studies in the literature were summarized in detail in terms of various analytical properties, such as linearity range, limit of detection (LOD), limit of quantification (LOQ), and detection method, among others. The experimental results were then discussed. Finally, this review discusses the potential, challenges, and opportunities in designing next-generation advanced sensing devices.","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"48 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145059725","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":"Segmented durability testing of solid oxide electrolysis cells: From model-aided design to proof of concept","authors":"Julian Taubmann,&nbsp;Harald Sigurd Okkels,&nbsp;Anders Bogh Jacobsen,&nbsp;Henrik Lund Frandsen","doi":"10.1016/j.electacta.2025.147348","DOIUrl":"10.1016/j.electacta.2025.147348","url":null,"abstract":"<div><div>Spatially varying degradation in a solid oxide cell (SOC) is often caused by the non-uniform operating conditions inside the electrodes. A prime example of such non-uniform conditions is the distribution in fuel electrode overpotential along the H₂O to H₂ conversion length. To achieve measurements of the varying operational conditions and possible non-uniform degradation rates, a segmented testing approach is introduced. Oxygen electrode segment dimensions and efficiency are analysed and designed based on a 2D multi-physics model. Cells with different fuel electrode microstructures are analysed and the degradation responses measured. Galvanostatic and potentiostatic durability tests are performed with separate measurements of the fuel gas inlet, centre, and outlet segments. Impedance spectroscopy measurements of the segments are further shown in the proof of concept of the segmented testing approach. Differences in the impedance response between the segments provide insights into the local extent of degradation unattainable via a non-segment measurement. The lowered variations in operating conditions due to the segmentation are analysed through the measured gas conversion impedance and multi-physics modelling, confirming the effectiveness of the approach.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"541 ","pages":"Article 147348"},"PeriodicalIF":5.6,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145059727","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":"Accelerating the catalytic conversion of lithium polysulfides in lithium sulfur batteries via NiV-LDH/CNT","authors":"Meiqi Zhai, Dong Wang, Long Zhang, Mingyu Dou, Hua Yang, Erkang Liu, Jianmin Dou","doi":"10.1016/j.electacta.2025.147393","DOIUrl":"https://doi.org/10.1016/j.electacta.2025.147393","url":null,"abstract":"To address the critical challenges of polysulfide shuttle effects and sluggish redox kinetics in lithium-sulfur batteries (LSBs), this study synthesizes a nickel-vanadium layered double hydroxide/carbon nanotube (NiV-LDH/CNT) composite cathode material through a one-step hydrothermal method, as efficient electrocatalysts for LSBs. SEM and BET tests show that the NiV-LDH/CNT composite material increase the specific surface area and exposes more active sites, providing space for sulfur storage and alleviating sulfur volume expansion. Meanwhile, theoretical calculations indicate that NiV-LDH/CNT lowers the reaction energy barrier for lithium polysulfides (LiPSs), effectively accelerating the redox reactions of LiPSs. As a result, the NiV-LDH/CNT electrode demonstrates stable cycling performance, achieving a high initial specific capacity of 1091.7 mAh g^-1 at 1.0 C with a capacity decay rate of only 0.07% per cycle in 800 cycles. Even under harsh conditions (with a sulfur loading of 7.1 mg cm^-2 and an E/S ratio of 6.0 μL mg^-1), an initial specific capacity of 1000.9 mAh g^-1 can still be achieved. This design overcomes the limitations of traditional carbon-based cathodes reliant on physical confinement alone, offering a novel strategy to advance the practical implementation of high-energy-density LSBs.","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"72 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145067803","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":"The effects of anionic doping on the ion transport of Li3TMCl6 (TM=Y, Er) and the heterostructure solid electrolytes interface first-principles study","authors":"Yuan Ren ,&nbsp;Guojian Cai ,&nbsp;Cheng Liu ,&nbsp;Jiahui Ye ,&nbsp;Chao Zhang","doi":"10.1016/j.electacta.2025.147387","DOIUrl":"10.1016/j.electacta.2025.147387","url":null,"abstract":"<div><div>Li₃YCl₆ and Li₃ErCl₆ are widely used as solid electrolytes in all-solid-state batteries due to their good ionic conductivity and wide stable chemical window. Li₃YCl₆ and Li₃ErCl₆, which have a tripartite lattice structure, not only have a high activation energy for transporting ions due to the strong electronegativity of the anion but also have poor interfacial stability with the cathode. The effects of anion X (<em>X</em> = <em>F</em>, Br, and I) doping on the ion transport of Li₃<em>TM</em>Cl₆ (<em>TM</em>=<em>Y</em>, Er) and LiF|Li₃<em>TM</em>Cl₆ are investigated using ab initio molecular dynamics and a climbing image nudged elastic band. The results show that the doping of Br^-/F^- in Li₃<em>TM</em>Cl₆ results in different local anionic coordination in the Li site, which providing a disorder structure for ion transport. The degeneracy and splitting of electron orbitals caused by doping reduce the energy level difference from octahedral to tetrahedral states. The short-range local environment only reduces the migration energy barrier due to the strong electronegativity of F^-. However, the broader anionic coordination results in a significant improvement in overall ion transport performance due to the lower electronegativity of Br^-. The extremely low migration barrier increases the diffusion coefficient of LiF|Li₃<em>TM</em>Cl₆-X due to weak interactions between transport ions and anions.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"541 ","pages":"Article 147387"},"PeriodicalIF":5.6,"publicationDate":"2025-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145056959","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":"Stabilizing ultrahigh-nickel cobalt-free lithium layered oxide cathode via Mg doping: pillar and electromagnetic center roles","authors":"Dongxia Yuan,&nbsp;Shudi Jia,&nbsp;Liping Lu","doi":"10.1016/j.electacta.2025.147388","DOIUrl":"10.1016/j.electacta.2025.147388","url":null,"abstract":"<div><div>Ultrahigh-nickel cobalt-free lithium layered oxide cathodes are widely researched and applied owing to their high capacity and low cost. Unfortunately, the ultrahigh nickel content implies deep lithium-ion extraction/insertion and intense redox reactions, while the cobalt-free results in poor electronic conductivity and serious Li⁺/Ni²⁺ disordering mixing. These factors severely threaten the cycle life and rate capability for battery. In this work, a Mg²⁺-doped LiNi_0.9Mn_0.1O₂ (NM91 and NM91-Mg) ultrahigh-nickel cobalt-free cathode is prepared to enhance lithium storage performance. Mg²⁺ doping plays a dual role as both an \"electrostatic center\" and a \"pillar\" within the lithium layers. Firstly, Mg²⁺ possesses more extranuclear electrons than Li⁺, resulting in stronger electrostatic interactions within the lithium layer. This enables it to act as an electrostatic center, inhibiting disordered cation migration. XRD refinement results confirm that Mg doping suppresses the detrimental Li⁺/Ni²⁺ mixing, thereby mitigating the negative effects associated with cobalt-free. Secondly, Mg²⁺ fixed within the lithium layers acts as a stable pillar species. It helps prevent the layered structure from collapsing during deep lithium-ion extraction. Battery <em>in-situ</em> XRD results show that Mg doping suppresses the harmful H2 to H3 phase transition, alleviating the negative effects caused by the ultrahigh nickel content. Consequently, NM91-Mg demonstrates significantly superior cycle stability (capacity retention for 100 cycles: 86.6 % <em>vs.</em> 81.1 %) and rate capability (discharge capacity at a high rate of 5 C: 98 mAh g^-1 <em>vs.</em> 89 mAh g^-1) compared to NM91. Remarkably, the constructed full battery also achieves a high capacity retention of 91.7 % after 100 cycles. Mg doping provides targeted improvements for ultrahigh-nickel cobalt-free cathode materials, bringing them closer to practical application.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"541 ","pages":"Article 147388"},"PeriodicalIF":5.6,"publicationDate":"2025-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145056960","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":"Self-supported Ni (OH)2-templated growth of Mo-doped CrNi-MOFs toward Sulfurized heterointerfaced nanospheres for high-energy-density supercapacitors","authors":"Shijie Jiang,&nbsp;Xiaoyan Sun,&nbsp;Junshu Chen,&nbsp;Linyu Pu,&nbsp;Huan Zhang,&nbsp;Yatang Dai,&nbsp;Wei Wang","doi":"10.1016/j.electacta.2025.147386","DOIUrl":"10.1016/j.electacta.2025.147386","url":null,"abstract":"<div><div>Metal-organic frameworks (MOFs) have emerged as promising electrode materials for supercapacitors, owing to their tunable pore architectures, abundant ion diffusion pathways, and accessible active sites. However, their inherent low conductivity and restricted rate capability limit the breakthrough of practical electrochemical performance. Herein, a three-step hydrothermal synthesis strategy is developed to fabricate a three-dimensional heterostructure by in situ growth of Ni (OH)₂ nanosheet arrays on nickel foam as a conductive scaffold, followed by in situ deposition of Mo-doped CrNi-MOF (MIL series), achieving a porous honeycomb-like architecture (HC₂N₁M₁). Subsequent sulfidation treatment further converts the hybrid structure into a porous nanosphere-based heterostructure (HC₂N₁M₁-S₁₂₀), demonstrating controlled morphological evolution. The optimized HC₂N₁M₁-S₁₂₀ material delivers a high specific capacitance of 956.7 C g^-1 at 1 A g^-1 and demonstrates exceptional cycling stability with 76 % capacity retention over 8000 cycles, benefiting from its unique structural hierarchy and multiple charge transport pathways. Furthermore, the asymmetric supercapacitor device assembled with this electrode (HC₂N₁M₁-S₁₂₀//AC) achieves a remarkable energy density of 58.4 Wh kg^-1 at a power density of 800 W kg^-1, showcasing its potential for high-performance energy storage systems. This study has demonstrated a synergistic strategy combining elemental doping and multidimensional structural engineering, thereby paving a new pathway for developing advanced electrode materials toward high-performance supercapacitors through rational material design.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"541 ","pages":"Article 147386"},"PeriodicalIF":5.6,"publicationDate":"2025-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145056963","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-performance Dawson-type polyoxometalate-based electrochromic energy storage devices with Co-doped MnO2 counter electrodes","authors":"Lin Liu, Jing Liang, Kaihua Wang, Guodong Li, Qianshuo Ren, Shi-Ming Wang, Chao Li, Jun Liang Lin","doi":"10.1016/j.electacta.2025.147381","DOIUrl":"https://doi.org/10.1016/j.electacta.2025.147381","url":null,"abstract":"Electrochromic energy storage devices (EESDs) represent an innovative solution for future intelligent energy systems by integrating energy storage with visual status indication. Yet the inherent low electrical conductivity and color interference of conventional MnO₂ electrodes limit both energy storage capacity and optical contrast in EESDs. To overcome these limitations, this study introduces an innovative cobalt doping strategy that simultaneously optimizes the Mn³⁺/Mn⁴⁺ ratio and oxygen vacancy concentration in MnO₂ electrodes. This optimization led to remarkable improvements in both electrochemical and optical performance: the resulting EESD exhibits an outstanding optical contrast of 76.5% at 700 nm, fast response (3.2/2.7 s for coloration / bleaching respectively), excellent coloring efficiency (150.3 cm²/C), and substantially improved areal capacitance reaching 12.45 mF/cm² (88% improvement compared to undoped devices). The synergistic enhancement stems from improved charge transfer kinetics and Li⁺ diffusion efficiency (<em>D</em> = 1.494 × 10^-8 cm²/s), along with excellent stability demonstrated by 80% optical modulation retention after 150 cycles and memory time up to 10 hours (14% decay). These findings offer a fundamental materials development approach for developing EESDs that integrate superior energy storage performance with real-time optical display functions.","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"66 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2025-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145043281","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":"Restricting alloying reaction of sns nanoparticles as negative electrode towards building high-performance lithium-ion batteries and capacitors with robust cycling","authors":"Manohar Akshay ,&nbsp;Yun-Sung Lee ,&nbsp;Vanchiappan Aravindan","doi":"10.1016/j.electacta.2025.147385","DOIUrl":"10.1016/j.electacta.2025.147385","url":null,"abstract":"<div><div>The lithium-ion capacitor (LIC) is a relatively new device that has emerged on the battlefield and can potentially put down the LIBs. These hybrid devices have two different electrode mechanisms (Faradaic and non-Faradaic) that bridge the gap between the LIBs and conventional supercapacitors. Herein, we introduce an appropriate electrode material, tin sulphide, SnS, which could be used as an anode in LIBs and LICs by limiting only an alloy-type reaction. This work explores the possibility of fabricating LIB and LIC with SnS nanoparticles as anode and commercial LiNi_0.5Mn_1.5O₄ and activated carbon (AC) as a cathode under balanced loading conditions. For the case of LIC, prior to the fabrication, the Li/SnS cell is electrochemically pre-lithiated (Li<em>_x</em>Sn + Li₂S) and paired with the cathode AC. The LIB and LIC displayed a maximum energy density of 387 and 172 Wh kg^–1, respectively, with ultra-long cyclability and capacity retention. The adaptability of these devices to various climatic conditions is validated by testing the full cell at different temperature conditions (–10 to 50 °C). Thus, from all the studies, we discovered that the SnS could be a potential candidate that could replace the graphitic carbon anode in both Li-ion batteries and capacitor configurations.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"542 ","pages":"Article 147385"},"PeriodicalIF":5.6,"publicationDate":"2025-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145056934","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":"Exploiting metal-organic framework intercalation in vanadium oxide for enhanced cathodic performance in aqueous zinc-ion batteries","authors":"Heng Lv ,&nbsp;Chenxiao Liu ,&nbsp;Yongwen Wang ,&nbsp;Xinyu Gao ,&nbsp;Yunfei Shen ,&nbsp;Ping Liu ,&nbsp;Haijiao Xie ,&nbsp;Gang Wang ,&nbsp;Long Chen ,&nbsp;Tiantian Gu","doi":"10.1016/j.electacta.2025.147382","DOIUrl":"10.1016/j.electacta.2025.147382","url":null,"abstract":"<div><div>Vanadium oxides hold great promise in aqueous zinc-ion batteries due to their high theoretical capacity, however, the strong electrostatic interactions between Zn²⁺ and vanadium oxides hinder their development. Organic species-intercalated vanadium oxides can enhance the diffusion of Zn²⁺ between layers, showing positive results in improving for vanadium oxides. Nevertheless, most organic materials have poor conductivity and risk detaching from the layers during cycling. In this study, vanadium oxides intercalated with squaric acid (SQ) were synthesized. Then, the further introduction of Zn²⁺ and SQ²^- coordination to formed a metal-organic framework (Zn-SQ), which reduced the risk of squaric acid release and further stabilized the structure of <em>V</em>+Zn-SQ (Zn-SQ intercalated NH₄V₄O₁₀). DFT calculation, GITT, and impedance tests demonstrate that <em>V</em>+Zn-SQ exhibits higher conductivity and faster Zn²⁺ diffusion rates compared to <em>V</em>+SQ (SQ intercalated NH₄V₄O₁₀). Consequently, <em>V</em>+Zn-SQ demonstrates excellent electrochemical performance (413.0 mAh g⁻¹ at 0.2 A g⁻¹), particularly under high current densities (91.4 mAh g⁻¹ after 10,000 cycles at 10 A g⁻¹), where its capacity and stability surpass <em>V</em>+SQ. Furthermore, ex-situ experiments investigated the reaction mechanism of <em>V</em>+Zn-SQ, revealing that the square ligands participate in zinc storage alongside vanadium oxides. This work provides a new avenue for constructing high-performance vanadium oxides.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"541 ","pages":"Article 147382"},"PeriodicalIF":5.6,"publicationDate":"2025-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145043282","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}