Industrial & Engineering Chemistry Research最新文献_第3页

Porous Silica Nanoreactors Encapsulating Pd-SnOx Hybrid Nanostructures for the Catalytic Reduction of 4-Nitrophenol

IF 4.2 3区工程技术

Industrial & Engineering Chemistry Research Pub Date : 2025-04-23 DOI: 10.1021/acs.iecr.4c04838

Kaijie Li, Qin Wang, Qifan Zhao, Hongbo Yu, Hongfeng Yin

{"title":"Porous Silica Nanoreactors Encapsulating Pd-SnOx Hybrid Nanostructures for the Catalytic Reduction of 4-Nitrophenol","authors":"Kaijie Li, Qin Wang, Qifan Zhao, Hongbo Yu, Hongfeng Yin","doi":"10.1021/acs.iecr.4c04838","DOIUrl":"https://doi.org/10.1021/acs.iecr.4c04838","url":null,"abstract":"The synergy between noble metals and metal oxides can effectively improve the catalytic hydrogenation performance. However, precisely controlling the metal–metal oxide interaction remains a significant challenge. In this study, well-defined Pd-SnOx hybrid nanostructures encapsulated in porous silica nanoreactors (Pd-SnOx@pSiO2) were prepared using a microemulsion system comprising water, cetyltrimethylammonium bromide (CTAB), and 1-dodecanethiol (C12–SH). Within the system, CTAB and C12–SH acted as co-surfactants, forming self-assembled micelles, with Pd and Sn ions coordinated to C12–SH. Compared with individual Pd@pSiO2, Pd1-(SnOx)0.75@pSiO2 exhibited significant improvements in catalytic efficient and stability (6 cycles, conversion >99, and 100% selectivity) for the catalytic reduction of 4-nitrophenol. This improvement is ascribed to the synergy between Pd and SnOx, along with the confinement effect provided by the porous silica shells. This research provides a strategy for constructing reactive and stable noble-metal-based catalysts for the hydrogenation of substituted nitroaromatics.","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":"71 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143866353","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

In Situ Exsolvation of Cu Nanoparticles to Enhance Anode Catalysis in Direct Carbon Solid Oxide Fuel Cells

IF 4.2 3区工程技术

Industrial & Engineering Chemistry Research Pub Date : 2025-04-22 DOI: 10.1021/acs.iecr.5c00131

Xiang Guo, Jinshuo Qiao, Hang Zhai, Cheng Zou, Sitong Chen, Rong zheng Ren, Wang Sun, Zhenhua Wang, Kening Sun

{"title":"In Situ Exsolvation of Cu Nanoparticles to Enhance Anode Catalysis in Direct Carbon Solid Oxide Fuel Cells","authors":"Xiang Guo, Jinshuo Qiao, Hang Zhai, Cheng Zou, Sitong Chen, Rong zheng Ren, Wang Sun, Zhenhua Wang, Kening Sun","doi":"10.1021/acs.iecr.5c00131","DOIUrl":"https://doi.org/10.1021/acs.iecr.5c00131","url":null,"abstract":"Direct carbon solid oxide fuel cells (DC-SOFCs) are energy-conversion devices that can be utilized to directly convert the chemical energy in carbon into electrical energy. However, the development of DC-SOFCs is hindered by the inefficient mass transfer process on the anode surface. Herein, B-site Cu-substituted (PrBa)0.95Fe1.8–xTi0.2CuxO6−δ (PBFTCx, x = 0–0.3) materials are synthesized via the sol–gel combustion method and evaluated as anode materials for DC-SOFCs. These Cu@PBFTCx (x = 0–0.3) anode materials show significantly improved CO adsorption capacities and oxygen ion conductivities, leading to improved catalytic performance in DC-SOFCs. Among the Cu-doped samples, Cu@PBFTC0.2 shows the most enhanced CO adsorption capacity and the highest ion conductivity in air. A single cell assembled with a Cu@PBFTC0.2 anode exhibits excellent performance when using nanoactivated carbon as a fuel, achieving a peak power density of 518.98 mW cm–2 at 800 °C. This work demonstrates the excellent potential for utilizing Cu@PBFTCx materials as DC-SOFC anodes.","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":"91 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143862428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Surrogate Modeling with Sensitivity-Based Experiment Design and Process Optimization of Seeded Cooling Crystallization: A Case Study on β-Form LGA

IF 4.2 3区工程技术

Industrial & Engineering Chemistry Research Pub Date : 2025-04-22 DOI: 10.1021/acs.iecr.4c04292

Bo Song, Tao Liu, Mingyan Zhao, Yan Cui, Junghui Chen, Zoltan K. Nagy, Rolf Findeisen

{"title":"Surrogate Modeling with Sensitivity-Based Experiment Design and Process Optimization of Seeded Cooling Crystallization: A Case Study on β-Form LGA","authors":"Bo Song, Tao Liu, Mingyan Zhao, Yan Cui, Junghui Chen, Zoltan K. Nagy, Rolf Findeisen","doi":"10.1021/acs.iecr.4c04292","DOIUrl":"https://doi.org/10.1021/acs.iecr.4c04292","url":null,"abstract":"To facilitate quality-by-design (QbD) of seeded cooling crystallization, a novel surrogate modeling and process optimization method is proposed in this paper, based on the design of experiments (DoE) with sensitivity analysis on the process operating conditions. To overcome the deficiency of the crystal growth kinetic model related to the population balance equation, which could not reflect the explicit relationship between the process operating conditions (e.g., initial solution supersaturation and cooling rate) and product crystal size distribution (CSD), a surrogate model is established by using the Gaussian process regression (GPR) approach, based on experimental data from a permitted range of operating conditions. Correspondingly, a swarm-based metaheuristic algorithm named beluga whale optimization (BWO) is adopted to determine proper hyperparameters in the surrogate model. By analyzing the global sensitivity analysis (GSA) of product CSD with respect to these operation conditions, a sensitivity-based DoE is developed to reduce the number of batch experiments required for implementation. Based on the established surrogate model, a comprehensive quality criterion is introduced to optimize these operating conditions, which takes into account the information entropy of product CSD together with the desired product yield and size range. The seeded cooling crystallization process of the β-form l-glutamic acid is tested to verify the effectiveness and merits of the proposed modeling and optimization method.","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":"63 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143862297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation of Structure-Performance Relationship of Heat Exchanger using Topology Optimization

IF 4.2 3区工程技术

Industrial & Engineering Chemistry Research Pub Date : 2025-04-22 DOI: 10.1021/acs.iecr.5c00917

Shilin Gao, Yajie Gou, Jintao Xing, Jing Li, Xudong Duan

{"title":"Investigation of Structure-Performance Relationship of Heat Exchanger using Topology Optimization","authors":"Shilin Gao, Yajie Gou, Jintao Xing, Jing Li, Xudong Duan","doi":"10.1021/acs.iecr.5c00917","DOIUrl":"https://doi.org/10.1021/acs.iecr.5c00917","url":null,"abstract":"Heat exchangers often face challenges such as uneven flow distribution, low heat transfer efficiency, and excessive pressure loss, which hinder energy utilization and operational performance. To address these issues, this study employs topology optimization and parameter optimization methods to enhance the flow and heat transfer performance of heat exchanger tube bundles. First, a shape sensitivity analysis is conducted to identify key regions influencing performance, revealing that the intervals of 60–100 and 260–300° exhibit the highest sensitivity. The topology-optimized structure demonstrates significant improvements, with a 6.40% increase in flow performance, a 0.63% enhancement in heat transfer efficiency, and a 7.54% boost in overall performance compared to the original structure with an average deformation of 0.05 mm. Parameter optimization, while yielding slightly lower performance gains, produces more regular and industrially feasible structures. The study highlights the advantages of topology optimization in exploring a broader design space without being constrained by predefined parameters, offering a more efficient approach to performance enhancement. By integrating sensitivity analysis and optimization techniques, this research provides theoretical guidance for the structural design of heat exchangers, contributing to improved energy efficiency and operational stability in industrial applications.","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":"7 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143862429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phosphorus Oxynitride Modified Pt/Al2O3 Catalyst with High Activity and Coke Resistance over Direct Dehydrogenation of Ethylbenzene

IF 4.2 3区工程技术

Industrial & Engineering Chemistry Research Pub Date : 2025-04-22 DOI: 10.1021/acs.iecr.5c00042

Yuan Ma, Baining Lin, Lukai Luo, Chaojun Guo, Le Xie, Yonghua Zhou

{"title":"Phosphorus Oxynitride Modified Pt/Al2O3 Catalyst with High Activity and Coke Resistance over Direct Dehydrogenation of Ethylbenzene","authors":"Yuan Ma, Baining Lin, Lukai Luo, Chaojun Guo, Le Xie, Yonghua Zhou","doi":"10.1021/acs.iecr.5c00042","DOIUrl":"https://doi.org/10.1021/acs.iecr.5c00042","url":null,"abstract":"The low activity and rapid coke deposition issues are challenging for the nonmetal and metal catalysts in the direct dehydrogenation (DDH) of ethylbenzene to styrene, respectively. To address these issues, the synergistic effect between nonmetal and metal species was explored in this paper by successively loading Pt species and phosphorus oxynitride (PNO) on Al2O3 support to fabricate PNO/Pt/Al2O3 catalyst. The XPS, TEM, NH3-TPD, and CO2-TPD characterizations revealed an obvious strong interaction between Pt and P, increasing the loading amount of PNO and significantly modifying the electronic properties of the Pt species. The catalytic performance results showed that PNO/Pt/Al2O3 not only exhibited higher catalytic activity with XEB of 56.68% than that of PNO/Al2O3 (39.55%) and Pt/Al2O3 (41.65%) but also displayed better coke resistance than Pt/Al2O3 at high-concentration of ethylbenzene feed. DFT calculations confirmed that the interaction between Pt and PNO led to the obviously reduced energy barriers for α-C–H and β-C–H bond breaking, which therefore enhanced the catalytic activity.","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":"126 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143862302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reaction Characteristics and Kinetics of Allyl Chloride Epoxidation Catalyzed by Supported Titanium Silicalite-1 in a Fixed-Bed Reactor

IF 4.2 3区工程技术

Industrial & Engineering Chemistry Research Pub Date : 2025-04-22 DOI: 10.1021/acs.iecr.4c04526

Fuqiang Qi, Zhentao Zhang, Junling Yang, Zhenqun Wu, Jinfang Zhi, Guanyue Gao

{"title":"Reaction Characteristics and Kinetics of Allyl Chloride Epoxidation Catalyzed by Supported Titanium Silicalite-1 in a Fixed-Bed Reactor","authors":"Fuqiang Qi, Zhentao Zhang, Junling Yang, Zhenqun Wu, Jinfang Zhi, Guanyue Gao","doi":"10.1021/acs.iecr.4c04526","DOIUrl":"https://doi.org/10.1021/acs.iecr.4c04526","url":null,"abstract":"The direct epoxidation of allyl chloride (ALC) to produce epichlorohydrin as a green and sustainable production technology is gaining global attention due to the significant reduction in wastewater and residues compared to traditional methods. This study conducted epoxidation experiments of ALC in a fixed-bed reactor using a titanium silicalite-1 supported catalyst to reveal the catalytic characteristics and kinetics. The effects of the operating conditions on the reaction performance are studied using the single-factor variable method. The results indicate that decreasing the liquid hourly space velocity, increasing the temperature, solvent amount, and feed ratio influence the reaction rates of the main epoxidation reaction and the side ring-opening reaction, leading to the tendency of increasing hydrogen peroxide (HP) conversion and decreasing epichlorohydrin selectivity. The optimal HP conversion and epichlorohydrin selectivity reached 96.34% and 95.88%, respectively. Based on the Eley–Rideal and Langmuir–Hinshelwood mechanism, kinetic modeling of the surface reaction as a rate-controlling step is constructed. Under the condition of eliminating external and internal diffusion limitations, kinetic data reflecting the intrinsic catalytic reaction rate are measured. The predicted reaction rates based on the Eley–Rideal model with HP being adsorbed show good agreement with the experimental data and accurately describe the intrinsic kinetic behavior of ALC epoxidation. This work provides theoretical support for the design and optimization of reactors for the direct epoxidation of ALC, thereby promoting the development and application of environmentally friendly production processes.","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":"24 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143862298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modeling and Optimization of PET Hydrogenolysis in a Slurry Bubble Column Reactor 浆泡柱反应器中 PET 加氢分解的建模与优化

IF 4.2 3区工程技术

Industrial & Engineering Chemistry Research Pub Date : 2025-04-22 DOI: 10.1021/acs.iecr.4c04608

Jae Hwan Choi, Chan Kim, Jong Min Lee

引用次数: 0

Multiple Electrochemical Interfaces in Lithium-Ion Batteries: A Fluid Density Functional Theory Study

IF 4.2 3区工程技术

Industrial & Engineering Chemistry Research Pub Date : 2025-04-22 DOI: 10.1021/acs.iecr.5c00269

Meifeng Zhu, Jin Cheng, Qing Wang, Mingyang Zhu, Yiting Lin, Cheng Lian, Honglai Liu

{"title":"Multiple Electrochemical Interfaces in Lithium-Ion Batteries: A Fluid Density Functional Theory Study","authors":"Meifeng Zhu, Jin Cheng, Qing Wang, Mingyang Zhu, Yiting Lin, Cheng Lian, Honglai Liu","doi":"10.1021/acs.iecr.5c00269","DOIUrl":"https://doi.org/10.1021/acs.iecr.5c00269","url":null,"abstract":"Lithium-ion batteries encompass multiple electrochemical interfaces. At the electrode–electrolyte interface, the structure of the electric double layer (EDL), especially the ion distribution, directly influences the characteristics and efficiency of the electrochemical process. A fast and accurate description of ion distribution is essential for advancing EDL research and improving the performance of quasi-solid-state polymer electrolytes (QPEs). However, experimental methods currently struggle to directly measure the density distribution of the EDL, and traditional molecular simulations are known for their long computational times. In this article, we have developed fluid density functional theory (FDFT), tailored specifically for the QPE system. The use of polymers increases the ionic density at the interface due to the occupying effect. The thickness of EDL is affected by different polymers’ polymerization degrees. Furthermore, the addition of additives increases the concentration of Li+ on the surface of the lithium metal anode. With the application of FDFT and the theoretical direction of the design of QPEs, this paper further develops the design method and puts forward some theoretical suggestions.","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":"15 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143857879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Highly Efficient Glycolysis of Polybutylene Terephthalate to Value-Added Monomers Catalyzed by 1,4-Butanediol Dispersions of Ultrasmall Zinc Oxide Nanoparticles

IF 4.2 3区工程技术

Industrial & Engineering Chemistry Research Pub Date : 2025-04-21 DOI: 10.1021/acs.iecr.5c01051

Xiao-Xuan Peng, Ze-Peng Bai, Kang Wu, Hua Zou, Hang-Tian Zhang, Jie-Xin Wang

{"title":"Highly Efficient Glycolysis of Polybutylene Terephthalate to Value-Added Monomers Catalyzed by 1,4-Butanediol Dispersions of Ultrasmall Zinc Oxide Nanoparticles","authors":"Xiao-Xuan Peng, Ze-Peng Bai, Kang Wu, Hua Zou, Hang-Tian Zhang, Jie-Xin Wang","doi":"10.1021/acs.iecr.5c01051","DOIUrl":"https://doi.org/10.1021/acs.iecr.5c01051","url":null,"abstract":"The escalating global demand for poly(butylene terephthalate) (PBT), as one of the five major engineering plastics, has led to severe ecological crises and significant resource consumption. In this work, we employ 1,4-butanediol dispersions of ultrasmall zinc oxide nanoparticles (ZnO NPs) with an average size of 2.8 nm and excellent dispersity as catalysts for the highly efficient glycolysis of PBT using 1,4-butanediol. Specifically, complete depolymerization of PBT and approximately 98% yield of bis(4-hydroxybutyl) terephthalate (BHBT) are achieved within 45 min at 200 °C by only a minimal amount of ZnO NPs (0.1 wt %). More importantly, 95% PBT conversion can still remain after five cycles, exhibiting high recyclability of ZnO NPs. The possible reaction mechanism for glycolysis of PBT in 1,4-butanediol over ZnO NPs is proposed, and the reaction kinetics is also studied with an activation energy of 149.7 kJ/mol. Furthermore, ZnO NPs also show outstanding catalytic activity in the methanolysis of PBT, reaching over 97% yield of dimethyl terephthalate (DMT) within 60 min at 160 °C. This work provides a sustainable pathway for efficient recycling and reuse of PBT and broadens its market prospect.","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":"43 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143857877","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Beyond Wetting: Unveiling the Theoretical and Practical Power of Superhydrophobic Coatings in Multifunctional Applications

IF 4.2 3区工程技术

Industrial & Engineering Chemistry Research Pub Date : 2025-04-21 DOI: 10.1021/acs.iecr.4c03665

Ahmed Bahgat Radwan, Magdy A. Ibrahim, Eman H. Ismail, Moustafa M. Zagho, Soliman I. El-Hout, Mohammad K. Hassan, Noora Al-Qahtani, Loredana Santo

{"title":"Beyond Wetting: Unveiling the Theoretical and Practical Power of Superhydrophobic Coatings in Multifunctional Applications","authors":"Ahmed Bahgat Radwan, Magdy A. Ibrahim, Eman H. Ismail, Moustafa M. Zagho, Soliman I. El-Hout, Mohammad K. Hassan, Noora Al-Qahtani, Loredana Santo","doi":"10.1021/acs.iecr.4c03665","DOIUrl":"https://doi.org/10.1021/acs.iecr.4c03665","url":null,"abstract":"Superhydrophobic coatings have gained substantial attention in recent years due to their remarkable water-repellent properties and diverse applications across various fields. This comprehensive literature review delves into superhydrophobic coatings’ advances, challenges, and underlying principles. We explore the evolution of these coatings from natural inspirations to state-of-the-art nanotechnology-driven solutions. The review encompasses an in-depth analysis of the fundamental mechanisms behind superhydrophobicity, including surface morphology, chemical composition, and the interaction of water with structured surfaces. Furthermore, we highlight the wide spectrum of applications that superhydrophobic coatings have found, ranging from self-cleaning surfaces and anti-icing materials to corrosion protection and biomedical devices. Factors such as mechanical stability, long-term performance, and scalability are discussed in the context of advancing these coatings from the laboratory to real-world applications. We also assess the current state of characterization techniques that enable precise evaluation and optimization of superhydrophobic properties.","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":"6 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143853672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0