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Construction of Supramolecular Polymers Based on Host-Guest Recognition

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Chinese Journal of Chemistry 2020年第12期38卷 1473-1479页

作者： Xiaofan Ji Feng Wang Xuzhou Yan shengyi dong Feihe Huang Department of Chemistry Zhejiang UniversityHangzhouZhejiang 310027China

What is the most favorite and original chemistry developed in your research group?The establishment of two new types of host-guest recognition building blocks(21-crown-7/secondary ammonium salt and pillar[5]arene/alkyl chain)for supramolecular *** do you get into this specific field?Could you please share some experiences with our readers?I got my introduction to supramolecular chemistry during the postgraduate *** are many phenomena closely related to the weak non-covalent interactions in nature,such as the storage and transmission of genetic information through the DNA double helix *** by these fascinating natural phenomena,scientists try to use non-covalent Interactions to prepare many very complex self-assembled systems including supramolecular polymers from natural and artificially designed structural *** 1987,Lehn,Cram,and Pederson won the Nobel Prize for their contribution to supramolecular *** present,supramolecular chemistry has developed into an emerging discipline formed by the intersection of chemistry,physics,life sciences,materials science,and electronic engineering.

关键词： structure. crown intersection

Effect of spatial configuration on adhesion of 1,2-disubstituted cyclohexane derivatives

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Chinese Chemical Letters 2023年第8期34卷 196-200页

作者： Qiao Zhang Yuhang Yin Jingfu Song Gai Zhao shengyi dong College of Chemistry and Chemical Engineering Hunan UniversityChangsha 410082China State Key Laboratory of Mechanics and Control of Mechanical Structures Nanjing University of Aeronautics and AstronauticsNanjing 210016China

Spatial configuration has a significant effect on chemical ***,the importance of spatial configuration in supramolecular adhesive materials has been frequently *** this study,the effects of the spatial configuration on cohesion and adhesion were *** to the diversities of the chemical structures and assembly patterns,1,2-disubstituted cyclohexane derivatives were used in this combined experimental and theoretical *** self-sorting assembly of enantiopure isomers improved cohesion but had a negative effect on *** contrast,racemic mixtures displayed stronger adhesion ***,it was proven that the cis-configuration was more favorable for supramolecular adhesion than the *** addition,the influence of the spatial configuration of 1,2-disubstituted cyclohexane derivatives could be effectively mitigated by hydrogen bond donors or *** addition of natural acids yielded three-dimensional polymeric networks,in which the spatial configuration was not the decisive factor for supramolecular adhesion.

关键词： Spatial configuration Supramolecular adhesive material Assembly Cohesion Adhesion

Supramolecular control over thermo-responsive systems with lower critical solution temperature behavior

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Aggregate 2021年第1期2卷 35-47页

作者： Qiao Zhang shengyi dong Mingming Zhang Feihe Huang College of Chemistry and Chemical Engineering Hunan UniversityChangshaP.R.China State Key Laboratory for Mechanical Behavior of Materials Shaanxi International Research Center for Soft MatterSchool of Materials Science and EngineeringXi’an Jiaotong UniversityXi’anP.R.China State Key Laboratory of Chemical Engineering Center for Chemistry of High-Performance&Novel MaterialsDepartment of ChemistryZhejiang UniversityHangzhouP.R.China Green Catalysis Center and College of Chemistry Zhengzhou UniversityZhengzhouP.R.China Correspondence Shengyi DongCollege of Chemistry and Chemical EngineeringHunan UniversityChangsha 410082P.R.China

Lower critical solution temperature(LCST)is the critical temperature below which the solution is miscible for all compositions and above which the solution becomes a *** study of LCST properties has become a central research topic due to its profound impact on the applications of stimuli-responsive *** by the marriage between materials science and supramolecular chemistry,the introduction of supramolecular pairs and interactions into polymeric LCST systems is increasingly ***,supramolecular interactions provide precise control over LCST behavior in both water and organic ***,supramolecular interactions not only control or adjust LCST behavior(supramolecular interaction controlled LCST),but also induce LCST phase behavior in species lack of thermo-sensitive properties(supramolecular interaction induced LCST).In this review,we summarize the applications of supramolecular interactions in LCST *** examining the relationship between supramolecular interactions and LCST changes,we further discuss the differences between supramolecular interaction controlled LCST and supramolecular interaction induced *** hope this review will give our readers a snapshot on how the supramolecular interactions influence the LCST behavior in various systems,and benefit them with different applications.

关键词： host-guest interactions lower critical solution temperature molecular recognition phase separation supramolecular chemistry

Low-molecular-weight supramolecular adhesive with resistance to low temperatures

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Chinese Chemical Letters 2023年第5期34卷 232-236页

作者： Shuanggen Wu Wenbo Wang Changyong Cai Fenfang Li shengyi dong College of Chemistry and Chemical Engineering Hunan UniversityChangsha 410082China College of Chemistry and Chemical Engineering Central South UniversityChangsha 410083China

The design of adhesive materials with strong adhesion capacity at low temperatures is a great ***,we report a low-molecular-weight supramolecular adhesive that exhibits good adhesion performance to various surfaces at low temperatures(from-18℃ to-80℃).Moreover,this supramolecular adhesive has good adhesion ability in the presence of water.

关键词： Supramolecular adhesive Low temperature resistance Underwater adhesion Low-molecular-weight monomer Supramolecular adhesion

Supramolecular Adhesive Materials from Natural Acids and Sugars with Tough and Organic Solvent-Resistant Adhesion

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CCS Chemistry 2021年第6期3卷 1690-1700页

作者： Shuanggen Wu Changyong Cai Fenfang Li Zhijian Tan shengyi dong College of Chemistry and Chemical Engineering Hunan UniversityHunan 410082 Institute of Bast Fiber Crops Chinese Academy of Agricultural SciencesHunan 410205 College of Chemistry and Chemical Engineering Central South UniversityHunan 410083

Natural adhesives have been widely replaced by industrial adhesives made from petroleum-based *** with that of traditional natural adhesives,modern industrial adhesives show improved adhesion ***,the drawbacks of modern adhesives,including toxicity and nonbiodegradability,drive the need for new and high-performance adhesive materials from renewable and biocompatible natural *** this study,a new family of acid-sugar adhesive materials exhibiting excellent and long-term adhesion effects was developed inspired by the concept of deep eutectic solvents(DESs).The supramolecular polymerization between natural sugars and acids gave rise to both strong cohesion and adhesion ***,high resistance to organic solvents is an advantage of acid-sugar supramolecular adhesive *** study not only dramatically expands the applications of DESs but also sheds light on the development of supramolecular adhesive materials as promising alternatives to polymeric adhesives.

关键词： supramolecular adhesive materials deep eutectic solvents supramolecular polymerization supramolecular adhesion supramolecular polymers

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用ASP技术实现信息访问安全控制

计算机工程 2000年第12期26卷 26-27页

作者：李升一蔡淑琴董庆军张金隆华中理工大学管理学院武汉430074

该文简要讨论了Internet/Intranet环境下信息访问安全问题，提出了实现信息访问控制的一种新思路，并给出了具体实现方法。

关键词： Internet网 ASP 信息访问安全控制

Enhanced solid-electrolyte interface efficiency for practically viable hydrogen-air fuel cell systems

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Journal of Energy Chemistry 2025年第1期100卷 356-368页

作者： Venkitesan Sakthivel dong Jin Yoo Graduate School Department of Energy Storage/Conversion Engineering (BK21 FOUR) Hydrogen and Fuel Cell Research Center Jeonbuk National University Jeonju Department of Life Science Jeonbuk National University

Proton exchange membrane fuel cells （PEMFCs） provide an appealing sustainable energy system,with the solid-electrolyte membrane playing a crucial role in its overall ***,sulfonated poly（1,4-phenylene ether-ether sulfone）(SPEES),an aromatic hydrocarbon polymer,has garnered considerable attention as an alternative to Nafion ***,the long-term durability and stability of SPEES present a significant *** this context,we introduce a potential solution in the form of an additive,specifically a core–shell-based amine-functionalized iron titanate （A–Fe2TiO5）,which holds promise for improving the lifetime,proton conductivity,and power density of SPEES in *** modified SPEES/A–Fe2TiO5composite membranes exhibited notable characteristics,including high water uptake,enhanced thermomechanical stability,and oxidative ***,the SPEES membrane loaded with 1.2 wt%of A–Fe2TiO5demonstrates a maximum proton conductivity of 155 mS cm-1,a twofold increase compared to the SPEES membrane,at 80°C under 100%relative humidity （RH）.Furthermore,the 1.2 wt%of A–Fe2TiO5/SPEES composite membranes exhibited a maximum power density of 397.37 mW cm-2and a current density of 1148 mA cm-2at 60°C under 100%RH,with an opencircuit voltage decay of 0.05 m V/h during 103 h of continuous *** study offers significant insights into the development and understanding of innovative SPEES nanocomposite membranes for PEMFC applications.

关键词： Acid-base Hybrid membrane Proton conductivity Polymer electrolyte fuel cell Single-cell performance

Low-temperature chlorination roasting technology for the simultaneous recovery of valuable metals from spent LiCoO_(2)cathode material

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 80-91页

作者： Junjie Shi Changle Hou Jingjing dong dong Chen Jianzhong Li Key Laboratory for Ecological Metallurgy of Multimetallic Mineral(Ministry of Education) Northeastern UniversityShenyang 110819China School of Metallurgy Northeastern UniversityShenyang 110819China

With the continuous increase in the disposal volume of spent lithium-ion batteries(LIBs),properly recycling spent LIBs has become essential for the advancement of the circular *** study presents a systematic analysis of the chlorination roasting kinetics and proposes a new two-step chlorination roasting process that integrates thermodynamics for the recycling of LIB cathode *** activation energy for the chloride reaction was 88.41 kJ/mol according to thermogravimetric analysis–derivative thermogravimetry data obtained by using model-free,model-fitting,and Z(α)function(αis conversion rate).Results indicated that the reaction was dominated by the first-order(F1)model when the conversion rate was less than or equal to 0.5 and shifted to the second-order(F2)model when the conversion rate exceeded *** conditions were determined by thoroughly investigating the effects of roasting temperature,roasting time,and the mass ratio of NH_(4)Cl to LiCoO_(2).Under the optimal conditions,namely 400℃,20 min,and NH_(4)Cl/LiCoO_(2)mass ratio of 3:1,the leaching efficiency of Li and Co reached 99.43% and 99.05%,*** of the roasted products revealed that valuable metals in LiCoO_(2)transformed into CoCl_(2) and ***,the reaction mechanism was elucidated,providing insights for the establishment of a novel low-temperature chlorination roasting technology based on a crystal structure *** technology can guide the development of LIB recycling processes with low energy consumption,low secondary pollution,high recovery efficiency,and high added value.

关键词： spent lithium-ion battery thermodynamics chlorination roasting kinetics circular economy

An Artificial Intelligence-Assisted Flexible and Wearable Mechanoluminescent Strain Sensor System

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NANO-MICRO LETTERS 2025年第1期17卷 1-15页

作者： dong, Yan An, Wenzheng Wang, Zihu Zhang, dongzhi China Univ Petr East China Coll Control Sci & Engn Qingdao 266580 Peoples R China

The sandwich-structured flexible mechanoluminescent sensor (SFLC) film shows great application potential as wireless wearable strain sensor and encryption ***-level integration of SFLC film with deep learning-based artificial intelligence enables fast and accurate interpretation of color data to strain values with automatic correction of errors caused by varying color *** smart glove wearable sensor based on the SFLC film combined with deep learning neural network enables fast and accurate hand gesture recognition. The complex wiring, bulky data collection devices, and difficulty in fast and on-site data interpretation significantly limit the practical application of flexible strain sensors as wearable devices. To tackle these challenges, this work develops an artificial intelligence-assisted, wireless, flexible, and wearable mechanoluminescent strain sensor system (AIFWMLS) by integration of deep learning neural network-based color data processing system (CDPS) with a sandwich-structured flexible mechanoluminescent sensor (SFLC) film. The SFLC film shows remarkable and robust mechanoluminescent performance with a simple structure for easy fabrication. The CDPS system can rapidly and accurately extract and interpret the color of the SFLC film to strain values with auto-correction of errors caused by the varying color temperature, which significantly improves the accuracy of the predicted strain. A smart glove mechanoluminescent sensor system demonstrates the great potential of the AIFWMLS system in human gesture recognition. Moreover, the versatile SFLC film can also serve as a encryption device. The integration of deep learning neural network-based artificial intelligence and SFLC film provides a promising strategy to break the "color to strain value" bottleneck that hinders the practical application of flexible colorimetric strain sensors, which could promote the development of wearable and flexible strain sensors from laboratory research to

关键词： Mechanoluminescent Strain sensor Flexible Deep learning Wireless