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MOFs-based porous liquids for CO2 capture and utilization

Green Energy and Environment 2025年

作者： Wang, Xun Liu, Yuxi Dai, Hongxing Wei, Zhen Xie, Shaohua Deng, Jiguang Beijing Key Laboratory for Green Catalysis and Separation Key Laboratory of Beijing on Regional Air Pollution Control Key Laboratory of Advanced Functional Materials Education Ministry of China College of Materials Science and Engineering Beijing University of Technology Beijing100124 China Department of Chemical and Environmental Engineering University of California RiversideCA92521 United States

Due to the greenhouse effect caused by carbon dioxide (CO2) emission, much attention has been paid for the removal of CO2. Porous liquids (PLs), as new type of liquid materials, have obvious advantages in mass and heat transfer, which are widely used in gas adsorption and separation. Metal–organic frameworks (MOFs) with the merit like large surface area, inherent porous structure and adjustable topology have been considered as one of the best candidates for PLs construction. This review presents the state-of-the-art status on the fabrication strategy of MOFs-based PLs and their CO2 absorption and utilization performance, and the positive effects of porosity and functional modification on the absorption-desorption property, selectivity of target product, and regeneration ability are well summarized. Finally, the challenges and prospects for MOFs-based PLs in the optimization of preparation, the coupling of multiple removal techniques, the in situ characterization methods, the regeneration and cycle stability, the environmental impact as well as expansion of application are proposed. © 2025 Institute of Process Engineering, Chinese Academy of sciences

关键词： Carbon capture and utilization

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Fabrication of a high-power pump and signal combiner with an asymmetric tapered fiber bundle utilizing un-pretreated pump fibers

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Optics Express 2025年第6期33卷 12349-12360页

作者： Ji, Mengyuan Liu, Kai Chen, Wenqi Yi, Xuezhuan Wang, Meng Tian, Lei Meng, Junqing Wangzhijiang Innovation Center for Laser Aerospace Laser Technology and System Department Shanghai Institute of Optics and Fine Mechanics Chinese Academy of Sciences Shanghai201800 China Shanghai Key Laboratory of All Solid-State Laser and Applied Techniques Shanghai Institute of Optics and Fine Mechanics Chinese Academy of Sciences Shanghai201800 China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing100049 China Advanced Laser and Optoelectronic Functional Materials Department Special Glasses and Fibers Research Center Shanghai Institute of Optics and Fine Mechanics Chinese Academy of Sciences Shanghai201800 China Beijing Institute of Tracking and Telecommunication Technology Beijing100049 China

We report a fabrication method for addressing the non-uniform arrangement issues associated with the asymmetric tapered fiber bundles (TFBs) in high-power pump and signal combiners (PSCs), which do not require pre-treatment of the pump fibers. It employs a homemade thin-walled glass tube with the coating layer, and six pump fibers surround it evenly to collectively form the TFB, while the signal fiber remains unaffected during the tapering process of the fiber bundle. The 3D simulation model of the backward (6 + 1)×1 PSC was established by the refractive index distribution method to calculate the transmission efficiency of the pump light and signal light, and then identify the optimal preparation parameters for achieving the best efficiency. In this model, a simulated quasi-uniform energy distribution light field was used as the input of the pump fiber, which can optimize the previous calculation method. Experimental results exhibited that the backward (6 + 1)×1 PSC achieved signal light and pump light transmission efficiencies of over 96% and 98%, respectively, the beam quality degradation is ∆M2 = 0.09, and the total output pump power was 4.102 kW. The experimental results are in good agreement with the simulation results. © 2025 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement.

关键词： Refractive index

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Aluminum introduced to the anion framework of cobalt silicate compositing with reduced graphene oxide showing improved electrochemical performances for hybrid supercapacitor

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Journal of Power Sources 2025年 648卷

作者： Liu, Yuxuan Zhang, Yifu Gao, Zhanming Tan, Xianfang Lv, Tianming Wang, Yang Chen, Dongzhi Cui, Miao Hu, Tao Meng, Changgong School of Chemistry Dalian University of Technology Dalian116024 China Hubei Key Laboratory of Radiation Chemistry and Functional Materials School of Nuclear Technology and Chemistry & Biology Hubei University of Science and Technology Xianning437100 China State Key Laboratory of New Textile Materials & Advanced Processing Technology Wuhan Textile University Wuhan430073 China College of Environmental and Chemical Engineering Dalian University Dalian116622 China

Transition metal silicates (TMSs) are frequently utilized as supercapacitor electrode materials because of their great thermal stability, plentiful reserves, and controlled structure. However, improving the conductivity of silicate materials is still the research goal. In order to create an effective carbon composite strategy, the sandwich structure of TMSs/carbon materials/TMSs is built in this article. Additionally, the Al element is included to enhance the electrochemical performance of silicate materials. This study describes the preparation of an aluminum-doped cobalt silicate/reduced graphene oxide/aluminum-doped cobalt silicate sandwich-like structure (Al-doped Co2SiO4/rGO/Al-doped Co2SiO4, denoted as rGO/ACS), applying a straightforward hydrothermal process with aluminum-doped silica/GO/aluminum-doped silica (Al-doped SiO2/GO/Al-doped SiO2, denoted as GO/Al-SiO2) as the template. At 1 A g−1, the specific capacity of rGO/ACS can reach 573 F g−1, which is 10 times that of CS (Co2SiO4, 57 F g−1) and 1.6 times that of rGO/CS (Co2SiO4/rGO/Co2SiO4, 362 F g−1). After 10,000 cycles, the capacitance retention of rGO/ACS is still 91 %, whose electrochemical performance is far superior to other silicon-based materials. In addition to having a surface capacitance of 763 mF cm−2 at 1 mA cm−2 with 81 % cycle performance after 8000 cycles, the rGO/ACS//AC hybrid supercapacitor performs exceptionally well electrochemically. This work demonstrates how the creation of Al-introduced TMSs/carbon materials/Al-introduced TMSs sandwich structure enhances the performance of silicate materials by combining the benefits of carbon composite and metal introduction, and it offers an option to further boost the conductivity of silicate. © 2025 Elsevier B.V.

关键词： Carbon carbon composites

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Tuning competition between charge order and superconductivity in the square-lattice t−t′−J model

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Physical Review B 2025年第3期111卷 035139-035139页

作者： Xin Lu Huaiming Guo Wei-Qiang Chen D. N. Sheng Shou-Shu Gong School of Physics Beihang University Beijing 100191 China Department of Physics and Guangdong Basic Research Center of Excellence for Quantum Science Southern University of Science and Technology Shenzhen 518055 China Shenzhen Key Laboratory of Advanced Quantum Functional Materials and Devices Southern University of Science and Technology Shenzhen 518055 China Department of Physics and Astronomy California State University Northridge Northridge California 91330 USA School of Physical Sciences Great Bay University Dongguan 523000 China Great Bay Institute for Advanced Study Dongguan 523000 China

Recently, a flurry of works have found strong competition between charge density wave (CDW) and superconductivity (SC) in the doped Hubbard and t−J models on the square lattice. Interestingly, some recent results suggest that the electron-phonon coupling may suppress CDW order and enhance SC. In this work, we consider the square-lattice Hubbard model with the Holstein or Su-Schrieffer-Heeger electron-phonon coupling at the large-U and antiadiabatic (infinite phonon frequency) limits, which gives an effective t−J model with either a density attractive interaction V or a JP term that contributes a larger spin exchange and a density repulsive interaction. To explore how these effective couplings may tune the competition between CDW and SC, we implement the density matrix renormalization group simulations on the t−t′−J model with V or JP coupling. We focus on the six-leg cylinder system with the next-nearest-neighbor hopping t′, which hosts partially filled stripe and d-wave SC in phase diagram. By tuning t′/t>0 and V or JP, we establish two quantum phase diagrams at 112 doping ratio. In the SC phases, the increased V or JP coupling can enhance the quasi-long-range SC order, consistent with some previous findings. Nonetheless, no SC emerges when the partially filled stripe phase disappears with increased V or JP. Instead, the system has a transition to either a phase-separation-like regime or a filled stripe phase. On the other hand, with increased t′/t, not only the partially filled stripe but the phase separation and filled stripe can also be tuned to SC phase. Our results suggest that although V and JP couplings may strengthen hole binding, the hole dynamics controlled by t′/t appears to play a more crucial role for obtaining a SC in the t−J model.

关键词： Charge density waves

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PolarBEVU: Multi-Camera 3D Object Detection in Polar Bird's-Eye View via Unprojection

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IEEE Transactions on Circuits and Systems for Video technology 2025年

作者： Hou, Minghui Lyu, Chuanhao Wang, Gang Ma, Baorui Xu, Rongtao Hu, Jue Fan, Xiaopeng Jilin University College of Computer Science and Technology Changchun China Tsinghua University School of Software Beijing China Chinese Academy of Sciences State Key Laboratory of Multimodal Artificial Intelligence Systems Institute of Automation Beijing China Harbin Institute of Technology National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Harbin150080 China Harbin Institute of Technology Centre for Composite Materials and Structures Harbin150001 China Harbin Institute of Technology Faculty of Computing Harbin150001 China

3D object detection from a Bird's Eye View (BEV) has emerged as a novel perception paradigm for autonomous driving scenarios. While most current 3D object detection methods still rely on the conventional Cartesian coordinates, they fail to align with the non-aligned coordinate system inherent in image geometry. The Polar coordinates, on the other hand, better fit with the geometric shape corresponding to the perception of cameras. However, transforming between coordinate systems introduces distortions in the perception information, resulting in issues such as "Weak Adaptability to Heatmap Distribution"and "Offset in the Center Point of the Bounding Box."To address these challenges, this paper proposes a cutting-edge 3D object detection model named PolarBEVU, which leverages the bird's-eye view under the Polar coordinates along with multi-camera unprojection. The model introduces an innovative "Deformable Uniform Heatmap Distribution"method that adjusts heatmap computations based on box shapes, generating high-quality heatmaps and effectively resolving the issue of "Weak Adaptability to Heatmap Distribution."Moreover, the model incorporates the concept of "Dynamic High-risk Regression Region"to enhance the accuracy and robustness of the center point regression at the bounding box, thus mitigating the issue of "Offset in the Center Point of the Bounding Box."In extensive experiments on the nuScenes dataset, PolarBEVU achieves impressive results with 49.9% mAP and 57.4% NDS on the test set, surpassing other comparative approaches and reaching the state-of-the-art (SOTA) performance among methods utilizing Polar coordinates. This clearly demonstrates the efficacy and superiority of PolarBEVU. In addition, the model is successfully deployed on Nvidia Jetson AGX Orin, showcasing real-time inference speeds of 31.42ms. These findings affirm PolarBEVU's potential for practical applications. Code is available at https: //***/JLUrob/PolarBEVU. © 2025 IEEE.

关键词： Object tracking

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An Unprecedented Efficiency with Approaching 21%Enabled by Additive‑Assisted Layer‑by‑Layer Processing in Organic Solar Cells

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Nano-Micro Letters 2025年第2期17卷 372-375页

作者： Shuai Xu Youdi Zhang Yanna Sun Pei Cheng Zhaoyang Yao Ning Li Long Ye Lijian Zuo Ke Gao Key Laboratory of Advanced Green Functional Materials College of ChemistryChangchun Normal UniversityChangchun 130032People’s Republic of China Shandong Provincial Key Laboratory for Science of Material Creation and Energy Conversion School of Chemistry and Chemical EngineeringShandong UniversityQingdao 266237People’s Republic of China College of Polymer Science and Engineering Sichuan UniversityChengdu 610065People’s Republic of China State Key Laboratory and Institute of Elemento‑Organic Chemistry Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer MaterialsRenewable Energy Conversion and Storage Center(RECAST)College of ChemistryNankai UniversityTianjin 300071People’s Republic of China Institute of Polymer Optoelectronic Materials and Devices State Key Laboratory of Luminescent Materials and Devices South China University of TechnologyGuangzhou 510640People’s Republic of China Tianjin Key Laboratory of Molecular Optoelectronic Sciences School of Materials Science and EngineeringTianjin UniversityTianjin 300350People’s Republic of China State Key Laboratory of Silicon Materials MOE Key Laboratory of Macromolecular Synthesis and FunctionalizationDepartment of Polymer Science and EngineeringZhejiang UniversityHangzhou 310027People’s Republic of China

Recently published in Joule,Feng Liu and colleagues from Shanghai Jiaotong University reported a record-breaking 20.8%power conversion efficiency in organic solar cells(OSCs)with an interpenetrating fibril network active layer morphology,featuring a bulk p-in structure and proper vertical segregation achieved through additive-assisted layer-by-layer *** optimized hierarchical gradient fibrillar morphology and optical management synergistically facilitates exciton diffusion,reduces recombination losses,and enhances light capture *** approach not only offers a solution to achieving high-efficiency devices but also demonstrates the potential for commercial applications of OSCs.

关键词： Organic solar cells Additive-assisted layer-by-layer processing Three-dimensional fibril morphology Bulk p-i-n structure Optical management

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Epigenetics in the modern era of crop improvements

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science China Life sciences 2025年第6期 1570-1609页

作者： Yan Xue Xiaofeng Cao Xiangsong Chen Xian Deng Xing Wang Deng Yong Ding Aiwu Dong Cheng-Guo Duan Xiaofeng Fang Lei Gong Zhizhong Gong Xiaofeng Gu Chongsheng He Hang He Shengbo He Xin-Jian He Yan He Yuehui He Guifang Jia Danhua Jiang Jianjun Jiang Jinsheng Lai Zhaobo Lang Chenlong Li Qing Li Xingwang Li Bao Liu Bing Liu Xiao Luo Yijun Qi Weiqiang Qian Guodong Ren Qingxin Song Xianwei Song Zhixi Tian Jia-Wei Wang Yuan Wang Liang Wu Zhe Wu Rui Xia Jun Xiao Lin Xu Zheng-Yi Xu Wenhao Yan Hongchun Yang Jixian Zhai Yijing Zhang Yusheng Zhao Xuehua Zhong Dao-Xiu Zhou Ming Zhou Yue Zhou Bo Zhu Jian-Kang Zhu Qikun Liu State Key Laboratory of Wheat Improvement Peking University Institute of Advanced Agricultural Sciences Shandong Laboratory of Advanced Agricultural Sciences in Weifang State Key Laboratory of Plant Genomics and National Center for Plant Gene Research Institute of Genetics and Developmental Biology Chinese Academy of Sciences State Key Laboratory of Hybrid Rice College of Life Sciences Wuhan University School of Life Sciences Division of Life Sciences and Medicine University of Science and Technology of China State Key Laboratory of Genetic Engineering Collaborative Innovation Center of Genetics and Development Department of Biochemistry and Biophysics Institute of Plant Biology School of Life Sciences Fudan University Key Laboratory of Plant Design National Key Laboratory of Plant Molecular Genetics Shanghai Center for Plant Stress Biology CAS Center for Excellence in Molecular Plant Sciences Chinese Academy of Sciences Center for Plant Biology School of Life Sciences Tsinghua University Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE) Northeast Normal University State Key Laboratory of Plant Environmental Resilience Frontiers Science Center for Molecular Design Breeding College of Biological Sciences China Agricultural University College of Life Sciences Institute of Life Science and Green Development Hebei University Biotechnology Research Institute Chinese Academy of Agricultural Sciences College of Biology Hunan Key Laboratory of Plant Functional Genomics and Developmental Regulation Hunan Engineering and Technology Research Center of Hybrid Rapeseed Hunan University Institute of Advanced Agricultural Sciences School of Advanced Agricultural Sciences Peking University State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources Guangdong Laboratory for Lingnan Modern Agriculture South China Agricultural University National Institute of Biological Sciences Key Laboratory of Seed Innovation Institute of Genetics and Developme

Epigenetic mechanisms are integral to plant growth, development, and adaptation to environmental stimuli. Over the past two decades, our comprehension of these complex regulatory processes has expanded remarkably, producing a substantial body of knowledge on both locus-specific mechanisms and genome-wide regulatory patterns. Studies initially grounded in the model plant Arabidopsis have been broadened to encompass a diverse array of crop species, revealing the multifaceted roles of epigenetics in physiological and agronomic traits. With recent technological advancements, epigenetic regulations at the single-cell level and at the large-scale population level are emerging as new focuses. This review offers an in-depth synthesis of the diverse epigenetic regulations, detailing the catalytic machinery and regulatory functions. It delves into the intricate interplay among various epigenetic elements and their collective influence on the modulation of crop traits. Furthermore, it examines recent breakthroughs in technologies for epigenetic modifications and their integration into strategies for crop improvement. The review underscores the transformative potential of epigenetic strategies in bolstering crop performance, advocating for the development of efficient tools to fully exploit the agricultural benefits of epigenetic insights.

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Mechanical Properties and Damage Tolerance of Bulk Yb_3Al_5O_(12) Ceramic

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Journal of Materials science & technology 2015年第4期31卷 369-374页

作者： Xiaofei Wang Huimin Xiang Xin Sun Jiachen Liu Feng Hou Yanchun Zhou Science and Technology of Advanced Functional Composite Laboratory Aerospace Research Institute of Materials and Processing Technology Key Laboratory of Advanced Ceramics and Machining Technology of Ministry of Education School of Materials Science and EngineeringTianjin University

Yb3Al5O12has potential applications as thermal barrier coatings（TBCs） because it shows low thermal conductivity and close thermal expansion coefficient to nickel-based *** a prospective TBC material,besides superior thermal properties,the mechanical properties are also *** this paper,we present the mechanical properties of Yb3Al5O12including elastic moduli,hardness,strength,and fracture *** Young’s modulus of Yb3Al5O12is 282 *** shear-modulus-to-bulkmodulus ratio of Yb3Al5O12is 0.63,which indicates relatively low shear deformation *** addition,Yb3Al5O12exhibits high strength and fracture toughness but low hardness compared to yttria stabilized zirconia（YSZ）,the most successful TBC *** observation reveals that the fracture surface of Yb3Al5O12displays 'layered structure feature',which is caused by crack *** based on Hertzian contact test demonstrates that Yb3Al5O12is a damage-tolerant *** deflection and bridging can arouse shear faults,dissipate the local damage energy,and restrict the crack propagation within the material,which play an important role in enhancing the damage *** superior mechanical properties and good damage tolerance ensure Yb3Al5O12a promising candidate for TBC applications.

关键词： Yb3Al5O12 Mechanical properties Damage Strength

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Superconductivity of the hybrid Ruddlesden‒Popper La5Ni3O11 single crystals under high pressure

arXiv

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arXiv 2025年

作者： Shi, Mengzhu Peng, Di Fan, Kaibao Xing, Zhenfang Yang, Shaohua Wang, Yuzhu Li, Houpu Wu, Rongqi Du, Mei Ge, Binghui Zeng, Zhidan Zeng, Qiaoshi Ying, Jianjun Wu, Tao Chen, Xianhui CAS Key Laboratory of Strongly coupled Quantum Matter Physics Department of Physics University of Science and Technology of China Anhui Hefei230026 China Hefei National Laboratory for Physical Sciences at the Microscale University of Science and Technology of China Anhui Hefei230026 China Shanghai Synchrotron Radiation Facility Shanghai Advanced Research Institute Chinese Academy of Sciences Shanghai China Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing210093 China Hefei National Laboratory University of Science and Technology of China Hefei230088 China Shanghai China Center for High Pressure Science and Technology Advanced Research Shanghai China Information Materials and Intelligent Sensing Laboratory of Anhui Province Anhui Key Laboratory of Magnetic Functional Materials and Devices Institutes of Physical Science and Information Technology Anhui University Hefei China

The discovery of high-temperature superconductivity in La3Ni2O7 and La4Ni3O10 under high pressure indicates that the Ruddlesden‒Popper (RP) phase nickelates Rn+1NinO3n+1 (R = rare earth) is a new material family for high-temperature superconductivity. Exploring the superconductivity of other RP or hybrid RP phase nickelates under high pressure has become an urgent and interesting issue. Here, we report a novel hybrid RP nickelate superconductor of La5Ni3O11. The hybrid RP nickelate La5Ni3O11 is formed by alternative stacking of La3Ni2O7 with n=2 and La2NiO4 with n=1 along the c axis. The transport and magnetic torque measurements indicate a density-wave transition at approximately 170 K near ambient pressure, which is highly similar to both La3Ni2O7 and La4Ni3O10. With increasing pressure, high-pressure transport measurements reveal that the density-wave transition temperature (TDW) continuously increases to approximately 210 K with increasing pressure up to 12 GPa before the appearance of pressure-induced superconductivity, and the density-wave transition abruptly fades out in a first-order manner at approximately 12 GPa. The optimal superconductivity with Tconset = 64 K and Tczero = 54 K is achieved at approximately 21 GPa. On the other hand, high-pressure X-ray diffraction experiments reveal a structural phase transition from an orthorhombic structure to a tetragonal structure at approximately 4.5 GPa. In contrast to La3Ni2O7 and La4Ni3O10, the pressure-induced structural transition has no significant effect on either the density-wave transition or the superconductivity, suggesting a minor role of lattice degree of freedom in La5Ni3O11. The present discovery extends the superconducting member in the RP nickelate family and sheds new light on the superconducting mechanism. © 2025, CC BY.

关键词： High temperature superconductors

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High-temperature Si-Pr eutectic filler for brazing RBSiC composites: Wettability and bonding mechanisms

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Journal of the European Ceramic Society 2025年第14期45卷

作者： Xue, Xiaoqian Lu, Fugang Yang, Jia Fu, Yibo Zhang, Qianrun Wu, Tong Fu, Mengchun Lin, Panpan Wang, Ce Dong, Yongkang Lin, Tiesong Liu, Zhanguo He, Peng State Key Laboratory of Precision Welding and Joining of Materials and Structures Harbin Institute of Technology Harbin150001 China Zhengzhou Research Institute Harbin Institute of Technology Zhengzhou450018 China National Key Laboratory of Science and Technology on Tunable Laser Harbin Institute of Technology Harbin150001 China Key Laboratory of Advanced Structural-Functional Integration Materials & Green Manufacturing Technology Harbin Institute of Technology Harbin150001 China

This study investigates the brazing of Si-Pr eutectic filler with Reaction-bonded Silicon Carbide (RBSiC), offering a comprehensive analysis of the wetting mechanism, microstructural evolution, mechanical properties, and fracture behavior of the joints. The results demonstrate that the Si-Pr eutectic filler achieves exceptional wettability with RBSiC, with no new phases formed at the interface, indicating stable and reliable interfacial interactions. Notably, the joint shear strength reaches 62.6 MPa at 1290 °C, with fracture occurring within the substrate, highlighting the superior mechanical properties of the brazed joints. The bonding mechanism involves Si adsorption and atomic bond formation facilitated by the diffusion of the filler and interface reconstruction. This work not only enhances our understanding of Si-Pr eutectic brazing alloys but also provides valuable insights for advancing composite material joining technologies, paving the way for more robust and efficient material connections in high-performance applications. © 2025 Elsevier Ltd

关键词： Shear strength

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