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Multi-anion electrolyte modulates the interactions in solvation structure to construct robust lithium metal batteries

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Journal of Energy Chemistry 2025年第5期104卷 36-43页

作者： Ke-Feng Ren Yun-Fei Du Jia-Xin Guo Zhen-Hui Luo Xin Sun Wen-Bo Tang Tian-Qi Li Cong Guo Weizhai Bao Feng Yu He Liu Xin-Bing Cheng Jingfa Li Jiangsu Key Laboratory of New Energy Devices&Interface Science School of Chemistry and Materials ScienceNanjing University of Information Science and TechnologyNanjing 210044JiangsuChina Z Energy Storage Center Key Laboratory of Energy Thermal Conversion and Control of Ministry of EducationSchool of Energy and EnvironmentSoutheast UniversityNanjing 211189JiangsuChina Tianmu Lake Institute of Advanced Energy Storage Technologies Liyang 213300JiangsuChina

Designing anion-dominated weak solvation structures is often achieved by elevating the concentration of Li ***,this is accompanied by the increase in the ***,a medium concentration electrolyte (1 M) with weak solvation structures is established by the multi-anion *** anions in the electrolyte strengthen the anion-solvent interactions through stronger ion–dipole *** reduces the quantity of free solvent and improves the reduction resistance of *** addition,the Li ion–solvent interaction is weakened,facilitating the anions to enter the solvation sheaths of Li *** multi-anion-dominated weak solvation structures boost Li ion diffusion in the electrolyte,accelerate the desolvation process of Li ions,and induce inorganic-rich solid electrolyte interphase and uniform Li *** average Coulombic efficiency of 99.1%for repeated Li plating/stripping can be ***||LiNi_(0.5)Co_(0.2)Mn_(0.3)O_(2) cells with a high cathode loading of 3.0 m A h cm^(-2) can maintain a capacity retention as high as 95% after 150 *** finding provides novel standpoints to modulate the interaction of solvation structures and extend the lifespan of high-energy–density Li metal batteries.

关键词： Lithium metal battery Multi-anion electrolyte Weak solvation structure Desolvation Solid electrolyte interphase

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Ytterbium-Catalyzed Tandem Diels-Alder/Claisen Rearrangement/Decarboxylation of Hetero-Allenes for the Synthesis of Diarylmethanes

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Chinese Journal of Chemistry 2025年第2期43卷 199-204页

作者： Bin Chen Shan Zhong Huilin Zhan Zhangyu Han Jianwei Sun Hai Huang Jiangsu Key Laboratory of Advanced Catalytic Materials&Technology School of Petrochemical EngineeringChangzhou UniversityChangzhouJiangsu213164 China Department of Chemistry The Hong Kong University of Science and TechnologyClear Water BayKowloonHong KongSAR999077 China

A tandem Diels–Alder reaction/Claisen rearrangement/decarboxylation strategy of N-allenamides (or aryloxyallenes) with 3-alkoxycarbonyl-2-pyrones has been developed for the efficient synthesis of diarylmethanes with moderate to good yields. The reaction exhibits good functional group tolerance and can be applied to late-stage modifications of known drug molecules. Mechanistic studies indicate that the ester group at the 3-position of 2-pyrones is essential, and the initial Diels–Alder reaction between the 2-pyrones and the proximal C=C bond of the N-allenamides (or aryloxyallenes) is crucial for the success of the reaction.

关键词： Hetero-allenes 2-Pyrones Diels-Alder reaction Claisen rearrangement Decarboxylation Tandem reaction

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Multiscale Theories and Applications:From Microstructure Design to Macroscopic Assessment for Carbon Nanotubes Networks

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Chinese Journal of Mechanical Engineering 2023年第3期36卷 18-35页

作者： Jiachao Ji Yulin Jin Anping Hua Chunhua Zhu Junhua Zhao Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology Jiangnan UniversityWuxi 214122China Institute of Mechanics and Advanced Materials School of Mechanical EngineeringJiangnan UniversityWuxi 214122China

Carbon nanotube(CNT)networks enable CNTs to be used as building blocks for synthesizing novel advanced materials,thus taking full advantage of the superior properties of individual *** analyses have to be adopted to study the load transfer mechanisms of CNT networks from the atomic scale to the macroscopic scale due to the huge computational *** them,fully resolved structural features include the graphitic honeycomb lattice(atomic),inter-tube stacking(nano)and assembly(meso)of *** an atomic scale,the elastic properties,ultimate stresses,and failure strains of individual CNTs with distinct chiralities and radii are obtained under various loading conditions by molecular *** dependence of the cohesive energies on spacing distances,crossing angles,size and edge effects between two CNTs is analyzed through continuum modeling in *** mesoscale models,which neglect the atomic structures of individual CNTs but retain geometrical information about the shape of CNTs and their assembly into a network,have been developed to study the multi-level mechanism of material deformation and microstructural evolution in CNT networks under stretching,from elastic elongation,strengthening to damage and *** paper summarizes the multiscale theories mentioned above,which should provide insight into the optimal assembling of CNT network materials for elevated mechanical performance.

关键词： Carbon nanotube networks Hierarchical structures Multiscale theories Mesoscale model

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Research on Fast Shaft Hole Assembly technology Based on 2D Point Cloud Matching Shape Recognition Method by Industrial Robot 2

Research on Fast Shaft Hole Assembly Technology Based on 2D ...

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2nd International Symposium on Control Engineering and robotics, ISCER 2023

作者： Wu, Xian Lu, Lei Yang, Chengyun Li, Wenjie Wang, Yinan Zhao, Haoran Zhang, Lei Soochow University Jiangsu Provincial Key Laboratory of Advanced Robotics Collaborative Innovation Center of Suzhou Nano Science and Technology Suzhou China

ISBN: (纸本)9798350336405

Precise and rapid shaft hole assembly is important for improving equipment performance and assembly efficiency. As the variety of parts and shapes, the accuracy and efficiency of manual assembly are limited. In this paper, a shaft hole assembly method by using image recognition algorithm and robot is proposed. In the image recognition process, a shape recognition method based on 2D point cloud matching is presented, and combined with robot to realize grasping and assembly movement. In order to improve the recognition accuracy and reduce the real-time computational complexity, the method with binarization, Gauss filtering and shape recognition are provided to process the image obtained from camera. The experiment results show that the proposed image recognition could effectively identify part shape and complete the assembly process accurately, i.e., the method could effectively improve the efficiency and accuracy of shaft hole assembly. © 2023 IEEE.

关键词： Image recognition

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Enhancing potassium-ion storage of Bi_(2)S_(3) through external–internal dual synergism: Ti_(3)C_(2)T_(x) compositing and Cu^(2+) doping

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Carbon Energy 2024年第9期6卷 39-51页

作者： Dawei Sha Yurong You Rongxiang Hu Jianxiang Ding Xin Cao Yuan Zhang Long Pan ZhengMing Sun Key Laboratory of Advanced Metallic Materials of Jiangsu Province School of Materials Science and EngineeringSoutheast UniversityNanjingJiangsuChina Institute of Technology for Carbon Neutralization College of ElectricalEnergy and Power EngineeringYangzhou UniversityYangzhouJiangsuChina School of Materials Science and Engineering Anhui University of TechnologyMa'anshanAnhuiChina

Potassium-ion batteries(PIBs)offer a cost-effective and resource-abundant solution for large-scale energy ***,the progress of PIBs is impeded by the lack of high-capacity,long-life,and fast-kinetics anode electrode ***,we propose a dual synergic optimization strategy to enhance the K^(+)storage stability and reaction kinetics of Bi_(2)S_(3) through two-dimensional compositing and cation ***,Bi_(2)S_(3) nanoparticles are loaded onto the surface of three-dimensional interconnected Ti_(3)C_(2)T_(x) nanosheets to stabilize the electrode ***,Cu^(2+)doping acts as active sites to accelerate K^(+)storage *** theoretical simulations and ex situ techniques are used to elucidate the external–internal dual *** discharge,Ti_(3)C_(2)T_(x) and Cu^(2+)collaboratively facilitate K+***,Cu^(2+)doping primarily promotes the fracture of Bi2S3 bonds,facilitating a conversion *** cycling,the Ti_(3)C_(2)T_(x) composite structure and Cu^(2+)doping sustain *** resulting Cu^(2+)-doped Bi2S3 anchored on Ti_(3)C_(2)T_(x)(C-BT)shows excellent rate capability(600 mAh g^(-1) at 0.1 A g^(–1);105 mAh g^(-1) at 5.0 A g^(-1))and cycling performance(91 mAh g^(-1) at 5.0 A g^(-1) after 1000 cycles)in half cells and a high energy density(179 Wh kg–1)in full cells.

关键词： Bi_(2)S_(3) cation doping potassium-ion batteries synergic mechanism Ti_(3)C_(2)T_(x)compositing

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Intelligent control for quality improvement in green tea fixation assisted with aroma detection

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Food Bioscience 2023年第3期53卷 2939-2951页

作者： Feihu Song Xiaohu Jia Zhenfeng Li Chunfang Song Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment&Technology School of Mechanical EngineeringJiangnan UniversityWuxiJiangsu214122PR China

An intelligent control system is designed in green tea fixation,which can automatically and continuously adjust the fixation parameters for quality *** is detected with PEN-3 electronic nose,and signals are sent to the *** the aroma signals,the fixation process is separated into two stages:in the first stage,the key purpose is enzymatic reaction,which can be suppressed with high temperature;it is the oxidation re-action which should be concentrated on in the second stage,and a middle temperature is a good *** the designed fuzzy logic algorithm,the pot temperature is kept at a high level at the beginning,and the enzymatic reaction can be successfully *** the second stage,the temperature is kept at a middle value to decrease *** the designed intelligent control,the green tea product quality is improved for aroma,taste,appearance,liquor color,and residues.

关键词： Intelligent control Green tea fixation Fuzzy algorithm Aroma detection

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Effects of different annealing temperatures on microstructure, mechanical properties, and magnetic properties of cold-rolled 20Mn23AlV non-magnetic structural steel

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Journal of Iron and Steel Research International 2025年第4期32卷 961-978页

作者： Xing-chang Tang Gang-hu Cheng Zhi-hui Jia Da-yang Qi Zhi-jian Zhang Ying-ying Shen Wei-lian Zhou Yuan-yuan Hou State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals Lanzhou University of TechnologyLanzhou730050GansuChina College of Materials Science and Engineering Lanzhou University of TechnologyLanzhou730050GansuChina Jiangsu Binxin Steel Group Co. Ltd.Lianyungang222113JiangsuChina

The variations in the mechanical and magnetic properties of cold-rolled 20Mn23AlV non-magnetic structural steel after annealing at different temperatures were *** microstructure and precipitation changes during annealing were studied by optical microscopy,scanning electron microscopy,and transmission electron *** results show that recrystallization completed after annealing at 620℃,resulting in grain sizes of approximately 800 nm and the best combination of strength and *** yield-to-tensile ratio of the non-magnetic structural steel after cold rolling continuously decreases from low to high temperatures after annealing,with the highest value being 0.89 and the lowest value being 0.43,indicating a wide range of yield-to-tensile ratio *** introduction of numerous dislocations during cold rolling provided favorable nucleation sites for precipitation,leading to abundant precipitation of the fine second-phase V(C,N).The phase composition of the samples remained unchanged as single-phase austenite after annealing,and the relative permeability values were calculated to be less than 1.002,meeting the requirements for non-magnetic steel in terms of magnetic properties.

关键词： 20Mn23AlV non-magnetic structural steel Recrystallization V(C,N)precipitation Mechanical property Magnetic property

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KOH-assisted aqueous synthesis of ZIF-67 with high-yield and its derived cobalt selenide/carbon composites for high-performance Li-ion batteries

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Chinese Journal of Chemical Engineering 2023年第5期57卷 214-223页

作者： Kai Xue Yanchun Xue Jing Wang Shuya Zhang Xingmei Guo Xiangjun Zheng Fu Cao Qinghong Kong Junhao Zhang Zhong Jin School of Environmental and Chemical Engineering Jiangsu University of Science and TechnologyZhenjiang 212003China MOE Key Laboratory of Mesoscopic Chemistry MOE Key Laboratory of High Performance Polymer Materials and TechnologyJiangsu Key Laboratory of Advanced Organic MaterialsSuzhou Tierui New Energy Technology Co.LtdSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China School of the Environment and Safety Engineering Jiangsu UniversityZhenjiang 212013China

To solve the environmental pollution and low yield during the sythesis of zeolitic imidazolate frameworks(ZIFs)and their derived materials,a KOH-assisted aqueous strategy is proposed to synthesize cobalt zeolitic imidazolate framework(ZIF-67)polyhedrons,which are used as precursors to prepare cobalt selenide/carbon composites with different crystal phases(Co_(0.85)Se,CoSe_2).When evaluated as anode material for lithium ion batteries,Co_(0.85)Se/C composites deliver a reversible capacity of 758.7 m A·h·g^(-1)with a capacity retention rate of 90.5%at 1.0 A·g^(-1)after 500 cycles,and the superior rate capability is 620 m A·h·g^(-1)at 2.0 A·g^(-1).The addition of KOH accelerates the production of ZIF-67 crystals by boosting deprotonation of dimethylimidazole,resulting in rapid growth and structures transition from two-dimensional to three-dimensional of ZIF-67 in aqueous solution,which greatly promotes the application of MOFs in the field of energy storage and conversion.

关键词： KOH-assisted strategy Synthesis Aqueous solution Nanostructure Lithium-ion batteries Long cycle performance

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Non-noble metal-based amorphous high-entropy oxides as efficient and reliable electrocatalysts for oxygen evolution reaction

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Nano Research 2022年第10期15卷 8751-8759页

作者： Qianqian Wang Jiaqi Li Yongjie Li Genmiao Shao Zhe Jia Baolong Shen School of Materials Science and Engineering Jiangsu Key Laboratory for Advanced Metallic MaterialsSoutheast UniversityNanjing 211189China School of Materials Science and Engineering Jiangsu Key Laboratory of Advanced Structural Materials and Application TechnologyNanjing Institute of TechnologyNanjing 211167China

Exploring high-performance and cost-effective electrocatalysts that are applicable in oxygen evolution reaction(OER)is crucial for water splitting and energy *** this work,a facile and scalable chemical reduction strategy is developed to synthesize FeCoNiPB non-noble metal-based amorphous high-entropy oxides for the OER in alkaline *** FeCoNiPB oxides exhibit overpotentials of 235 and 306 mV at current densities of 10 and 100 mA/cm^(2),respectively,as well as a small Tafel slope of 53 mV/dec in 1.0 M KOH solution,outperforming the performance of FeCoPB,FeNiPB,and CoNiPB oxides and the commercial RuO_(2),while maintaining excellent stability with negligible overpotential amplification over 40 *** superior OER electrocatalytic efficiency and stability of the FeCoNiPB catalyst is primarily attributed to its unique amorphous high-entropy nanostructure,synergistic effect of the multiple components,and in situ-formed amorphous sheets with a thin(FeCoNi)OOH crystalline layer on the edge during long-term *** work provides new insights to design and prepare low-cost,highly efficient,and durable OER electrocatalysts.

关键词： FeCoNiPB amorphous high-entropy oxides oxygen evolution reaction synergistic effect self-reconstruction

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Palladium-Catalyzed[4+2]and[6+2]Dipolar Cycloadditions for the Construction of Benzo[d]isothiazole 1,1-Dioxide Fused 1,3-Oxazinanes and 1,3-Oxazocanes

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Chinese Journal of Chemistry 2024年第8期42卷 829-834页

作者： Lei Chen Hongling Xie Yu Xue Zhengyu Han Jianwei Sun Hai Huang Jiangsu Key Laboratory of Advanced Catalytic Materials&Technology School of Petrochemical EngineeringChangzhou UniversityChangzhouJiangsu213164 China Department of Chemistry The Hong Kong University of Science and TechnologyClear Water BayKowloonHong Kong SARChina

Comprehensive Summary,The Pd-catalyzed dipolar cycloaddition represents a significant synthetic strategy for the construction of useful heterocyclic *** study developed the dipolar[4+2]and[6+2]cycloaddition reactions of benzo[d]isothiazole 1,1-dioxides(BDs)leading to the synthesis of BD-fused 1,3-oxazinane and 1,3-oxazocane derivatives,*** particular,the synthesis of BD-fused 1,3-oxazinanes demonstrated regio-and enantioselective characteristics,resulting in products with good yields,enantioselectivity and regioselectivity(if applicable).Furthermore,the[6+2]cycloaddition reaction developed in this work represented the first strategy for the synthesis of medium-sized ring compounds based on BDs.

关键词： Cycloaddition 1,3-Oxazinanes 1,3-Oxazocanes Medium-ring compounds Stereochemistry N-Heterocycles Sulfonamides Enantioselectivity Asymmetricsynthesis

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