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Preparation of hybridizing zeolitic imidazolate frameworks with carboxymethylcellulose for adsorption separation of n-hexane/3-methylpentane

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Chinese Journal of Chemical Engineering 2021年第1期34卷 103-109页

作者： Xiujuan Li Le Chen Dandan Zhu Song Yang Zhong Wu Mingyang He Zhihui Zhang Qun Chen Jiangsu Key Laboratory of Advanced CatalyticMaterials and Technology Advanced Catalysis and Green Manufacturing Collaborative Innovation CenterChangzhou UniversityChangzhou 213164China

A novel ZIF-8-CMC hybrid material was fabricated from the hybridization of ZIF-8 and carboxymethylcellulose(CMC) by impregnation method for n-hexane/3-methylpentane *** surface properties of ZIF-8 were tailored by introducing CMC into ZIF-8 *** this work,adsorption separation of n-hexane(nHEX) and 3-methylpentane(3 MP) on ZIF-8-CMC were investigated by batch vapor-phase adsorption and liquid-phase breakthrough *** adsorption selectivity of nHEX/3 MP reversed from preferable adsorption of nHEX to preferable adsorption of 3 MP upon the increasing of CMC containing in the hybrid *** the temperature increases,the adsorption amounts of nHEX and 3 MP *** the increasing of CMC contents,the nHEX uptake decreased,the uptake capacity of 3 MP increased *** liquid-phase breakthrough adsorption,the dynamic adsorption capacity of nHEX also decreased with the increasing of temperature.

关键词： Zeolitic imidazolate frameworks Carboxymethylcellulose(CMC) n-Hexane Adsorption separation

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Lipid-conjugated siRNA hitchhikes endogenous albumin for tumor immunotherapy

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Chinese Chemical Letters 2023年第11期34卷 202-208页

作者： Bo Hu Sudong Kong Yuhua Weng Deyao Zhao Abid Hussain Qingze Jiao Shijing Zhan Ling Qiu Jianguo Lin Minhao Xie Bo Li Yuanyu Huang School of Life Science Advanced Research Institute of Multidisciplinary ScienceSchool of Medical TechnologyKey Laboratory of Molecular Medicine and BiotherapyKey Laboratory of Medical Molecule Science and Pharmaceutics EngineeringBeijing Key Laboratory for Separation and Analysis in Biomedicine and PharmaceuticalsBeijing Institute of TechnologyBeijing 100081China School of Chemical and Material Engineering Jiangnan UniversityWuxi 214122China NHC Key Laboratory of Nuclear Medicine Jiangsu Key Laboratory of Molecular Nuclear MedicineJiangsu Institute of Nuclear MedicineWuxi 214063China Department of Radiation Oncology The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450000China School of Materials and the Environment Beijing Institute of TechnologyZhuhai 519085China Rigerna Therapeutics Suzhou 215127China

With the development of a small interfering RNA(siRNA)delivery strategy,increasing siRNA therapeutics for tumor treatment appeared in clinical trials and pre-clinical ***,the test results of such therapeutics unveiled that efficient siRNA delivery to tumor tissues is still *** is considered an ideal carrier for delivering hydrophobic agents into tumor tissue because it is highly concentrated and long-circulating in blood and has propensity of tumor ***,we synthesized lipid conjugated siRNAs(LsiRNAs),which showed high affinity to ***,LsiRNAs non-covalently bind to the hydrophobic core of albumin through its octadecyl *** small size of albumin/LsiRNAs allows the complex to penetrate tumor tissue *** test proved that albumin extremely prolonged circulation time and increased tumor retention of associated ***,LsiRNA against programmed death ligand-1(Pdl1)efficiently suppressed tumor growth as well as prolonged survival time of tumor bearing mice by increasing infiltration of CD8^(+)T cells as well as promoted the maturation of dendritic cells both in tumor and ***,LsiRNAs provide a simple but effective way for siRNA tumor delivery that“hitchhikes”on albumin.

关键词： Albumin siRNA Lipid conjugate Tumor treatment Immunotherapy

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Fabrication of wear-resistant PA6 composites with superior thermal conductivity and mechanical properties via constructing highly oriented hybrid network of SiC-packed BN platelets

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Journal of Materials Science & technology 2023年第15期146卷 200-210页

作者： Jing Chen Jiaming Zhu Yang Pan Hong Wu Shaoyun Guo Jianhui Qiu The State Key Laboratory of Polymer Materials Engineering Sichuan Provincial Engineering Laboratory of PlasticRubber Complex Processing TechnologyPolymer Research Institute of Sichuan UniversityChengdu 610065China Jiangsu Industrial Technology Research Institute of Advanced Polymer Materials Nanjing 211899China Department of Mechanical Engineering Faculty of Systems Science and TechnologyAkita Prefectural UniversityAkita 015-0055Japan

Herein,a strong extensional and shearing field was introduced to construct highly oriented hybrid networks of silicon carbide(SiC)-packed boron nitride(BN)platelets to fabricate high-performance wearresistant PA6 *** show that in-plane and through-plane thermal conductivity(TC)of the prepared PA6 composites with a total filler loading of 20 wt.%reached 1.31 and 0.35 W/(m K),352%and 25%higher than those of pure PA6,*** is attributed to the highly oriented hybrid network that facilitates the formation of efficient thermal conductivity *** monitoring results during friction confirm that high TC favors the friction heat dissipation ***,the yield strength of PA6 composites increased by 39.1%and they still have excellent ductility with an elongation at break of 207.1%.Finally,the wear rate of PA6 composites decreased sharply by 92.5%.This method can be used to manufacture advanced linear bearing and guideway parts,etc。

关键词： Polymer-matrix composites(PMCs) Hybrid Wear Thermal properties

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Regulation of the sintering trajectory of Ho,Pr:Y_(2)O_(3) ceramics for 2.9μm mid-infrared lasers by atmospheric sintering

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Journal of advanced Ceramics 2025年第1期14卷 81-89页

作者： Qing Li Fei Liang Jun Wang Yan Ling Xue Jie Ma Peng Liu Shiyu Sun Zhan Hui Jian Zhang Changhua Zhang Lili Hu Haohai Yu Huaijin Zhang Dingyuan Tang State Key Laboratory of Crystal Materials and Institute of Crystal Materials Shandong UniversityJinan 250100China Jiangsu Key Laboratory of Advanced Laser Materials and Devices School of Physics and Electronic EngineeringJiangsu Normal UniversityXuzhou 221116China Shanghai Key Laboratory of Multidimensional Information Processing School of Communication and Electronics EngineeringEast China Normal UniversityShanghai 200241China Shanghai Branch Hefei National Laboratoryand Shanghai Research Center for Quantum SciencesShanghai 201315China Collaborative Innovation Center of Extreme Optics Shanxi UniversityTaiyuan 030006China Shanghai Institute of Optics and Fine Mechanics Chinese Academy of SciencesShanghai 201800China Shanghai Institute of Ceramics Chinese Academy of SciencesShanghai 201899China Future Technology School Shenzhen Technology UniversityShenzhen 518118China

The sintering trajectory of the Ho,Pr:Y_(2)O_(3) ceramics could be effectively adjusted by sintering in a flowing oxygen atmosphere instead of *** final-stage grain growth was significantly suppressed by the use of oxygen atmosphere presintering,resulting in smaller average grain sizes than those of samples sintered under vacuum,while the same relative density was *** hot isostatic pressing(HIP),the oxygen presintered Ho,Pr:Y_(2)O_(3) ceramics achieved excellent optical quality,with transmittance exceeding 80%at a wavelength of 680 *** codoping of Pr^(3+) as deactivating ions effectively depopulated the lower energy level 5I7 during the Ho^(3+):^(5)I_(6)→^(5)I_(7) transition,thereby making the Ho,Pr:Y_(2)O_(3) ceramics more conducive to promoting population inversion in the 2.9μm laser wavelength range.

关键词： Y_(2)O_(3) ceramics sintering trajectory Ho^(3+)/Pr^(2+) mid-infrared laser fluorescence properties

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Flexible Sensors Used for Lower Assisting Exoskeleton 16th

Flexible Sensors Used for Lower Assisting Exoskeleton

引用

16th International Conference on Intelligent robotics and Applications, ICIRA 2023

作者： Xiao, Yang Chen, Chunjie Liu, Yao Shenzhen Institute of Advanced Technology Chinese Academy of Sciences Shenzhen518055 China Guangdong Provincial Key Laboratory of Robotics and Intelligent System Shenzhen Institute of Advanced Technology Chinese Academy of Sciences Shenzhen518055 China

ISBN: (纸本)9789819964857

In recent years, with the aging of the social population, exoskeleton robots have a wide range of application prospects in rehabilitation assistance, walking assistance, and physical expansion. However, the sensors developed for traditional robots currently have problems such as poor wearability, poor biocompatibility, and poor adaptability. To realize human-machine motion coordination assistance with multiple degrees of freedom and multiple motion states more effectively, and improve the flexibility, real-time performance, and reliability of the interaction between the wearer and the exoskeleton, it is necessary to design a set of flexible sensing systems to monitor the wearer’s motion status. It provides intelligent sensing technology support for adaptive control of exoskeleton in complex environments. This paper proposes a new flexible stretchable capacitive sensor and introduces its selection and manufacturing process. In the following experiments, three different slopes in the static experiment and dynamic experiment were used to test its performance and explore the accuracy and stability of its angle measurement. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2023.

关键词： Capacitive sensors

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Mag-Boost Mechanism for High-Power Ocean Wave Energy Harvesting

SSRN

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SSRN 2024年

作者： Tang, Tianyi Li, Yunfei Huang, Manjuan Mei, Mingqi Wang, Zizhao Zha, Fusheng Sun, Lining Liu, Huicong School of Mechanical and Electrical Engineering Jiangsu Provincial Key Laboratory of Advanced Robotics Soochow University Suzhou215123 China State Key Laboratory of Robotics and System Harbin Institute of Technology Harbin150001 China

Ocean wave energy is a highly anticipated renewable energy source. However, due to the ultra-low frequency and random characteristics of ocean waves, efficient and high-power energy harvesting has been a great challenge. By ingeniously leveraging the phenomenon of sudden magnetic-torque variation in orthogonal magnetic fields, this paper proposes an innovative Mag-Boost mechanism, which is capable of converting ultra-low excitation below 1Hz to high-frequency oscillations of power-magnet more than 50Hz without direct contact. The energy conversion efficiency of this mechanism can be as high as 89.3%. By integrating four Mag-boost units into a circular array, a high-power wave energy harvester (WEH) with ultra-low frequency response capabilities has been proposed. At a frequency of 1Hz and an inclination angle of 30°, the WEH demonstrated a high output performance with power of 1.79W and power density of 1.88kW/m³, which is an order of magnitude higher than those of the previous reported ones. During the off-shore test at Yellow Sea, the WEH reached the peak open-circuit voltage of 10V, ensuring completely independent and stable power supply for wireless temperature and humidity sensors. Furthermore, the Mag-Boost mechanism also shows considerable potential for harvesting other forms of low-frequency environmental energy, including wind, vibration, and human kinetic energy. © 2024, The Authors. All rights reserved.

关键词： Water waves

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Oxygen-coordinated low-nucleus cluster catalysts for enhanced electrocatalytic water oxidation

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Carbon Energy 2023年第2期5卷 137-147页

作者： Jiapeng Ji Yunpeng Hou Shiyu Zhou Tong Qiu Liang Zhang Lu Ma Chao Qian Shaodong Zhou Chengdu Liang Min Ling Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology College of Chemical and Biological EngineeringZhejiang UniversityHangzhouChina Jiangsu Key Laboratory for Carbon-Based Functional Materials&Devices Joint International Research Laboratory of Carbon-Based Functional Materials and DevicesInstitute of Functional Nano&Soft Materials(FUNSOM)Soochow UniversitySuzhouJiangsuChina National Synchrotron Light Source II Brookhaven National LaboratoryUptonNew YorkUSA Institute of Zhejiang University-Quzhou QuzhouChina

The oxygen evolution reaction(OER)activity of single-atom catalysts(SACs)is closely related to the coordination environment of the active *** atomic metal species bring about unique features beyond nitrogen-coordinated atomic metal species due to the fact that the M-O bond is weaker than the M-N ***,a series of metal-oxygen-carbon structured low-nucleus clusters(LNCs)are successfully anchored on the surface of multiwalled carbon nanotubes(M-MWCNTs,M=Ni,Co,or Fe)through a foolproof low-temperature gas transfer(300℃)method without any further *** morphology and coordination configuration of the LNCs at the atomic level were confirmed by comprehensive *** synthetic Ni-MWCNTs electrocatalyst features excellent OER activity and stability under alkaline conditions,transcending the performances of Co-MWCNTs,Fe-MWCNTs and RuO_(2).Density functional theory calculations reveal that the moderate oxidation of low-nucleus Ni clusters changes the unoccupied orbital of Ni atoms,thereby lowering the energy barrier of the OER rate-limiting step and making the OER process more *** study demonstrates a novel versatile platform for large-scale manufacturing of oxygen-coordinated LNC catalysts.

关键词： electrocatalytic water oxidation low-nucleus cluster low-temperature gas transfer metal-oxygen-carbon structure

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Highly crystalline and water-wettable benzobisthiazole-based covalent organic frameworks for enhanced photocatalytic hydrogen production

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National Science Review 2023年第1期10卷 268-276页

作者： Wei Huang Yongpan Hu Zhengyuan Qin Yujin Ji Xuan Zhao Yunling Wu Qing He Youyong Li Chunfeng Zhang Jun Lu Yanguang Li Institute of Functional Nano and Soft Materials(FUNSOM) Soochow University Jiangsu Key Laboratory for Advanced Negative Carbon Technologies Soochow University National Laboratory of Solid State Microstructures School of Physics and Collaborative Innovation Center for Advanced MicrostructuresNanjing University Macao Institute of Materials Science and Engineering (MIMSE) MUST-SUDA Joint Research Center for Advanced Functional Materials Macau University of Science and Technology College of Chemical and Biological Engineering Zhejiang University

Two-dimensional covalent organic frameworks are promising for photocatalysis by virtue of their structural and functional diversity,but generally suffer from low activities relative to their inorganic *** fulfill their full potential re quires a rational tailoring of their structures at different scales as well as their surface ***,we demonstrate benzobisthiazole-based covalent organic frameworks as a superior photocatalyst for hydrogen *** product features high crystallinity with ordered 2.5-nm-wide cylindrical mesopores and great water *** structural advantages afford our polymeric photo catalyst with fast charge carrier dynamics as evidenced by a range of spectroscopic characterizations and excellent catalytic performances when suspended in solution or supported on melamine *** visible-light irradiation,it enables efficient and stable hydrogen evolution with a production rate of 487 μmol h-1(or a mass-specific rate of 48.7 mmol g-1h-1)—far superior to the previous state of the *** also demonstrate that hydrogen production can be stoichiometrically coupled with the oxidation conversion of biomass as exemplified by the conversion of furfuryl alcohol to 2-furaldehyde.

关键词： covalent organic frameworks photocatalysis hydrogen evolution benzobisthiazole water-wettable

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Defects in monolayer WS2 grown via sulfurization of WSe2

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Progress in Natural Science:Materials International 2024年第2期34卷 323-328页

作者： Shunhui Zhang Xiang Lan Hang Liu Xuyang Zhang Baihui Zhang Zhikang Ao Tian Zhang Peng Chen Xiangdong Yang Fangping Ouyang Zhengwei Zhang Hunan Key Laboratory of Nanophotonics and Devices School of Physics Central South University College of Materials Science and Engineering Hunan University Physical Sciences and Engineering Division King Abdullah University of Science and Technology School of Energy and Power Engineering Changsha University of Science and Technology School of Flexible Electronics (Future Technologies) Institute of Advanced Materials Jiangsu National Synergetic Innovation Centre for Advanced Materials Nanjing Tech University School of Microelectronics Southern University of Science and Technology Institute of Micro/Nano Materials and Devices Ningbo University of Technology

The conversion of chalcogen atoms into other types of chalcogen atoms in transition metal dichalcogenides exhibits significant advantages in tuning the bandgaps and constructing lateral ***,despite atomic defects at the atomic scale were inevitably formed during conversion process,the construction of dislocations remains ***,we conducted in-situ sulfurization to achieve structural transformation from monolayer WSe2to *** probe these transformations at atomic scale using high-angle annular dark field scanning transmission electron microscopy（HAADF-STEM） and study structural defects of sulfurizedWS2by strain and displacement *** discovered that high-quality WSe2flakes were completely sulfurized while dislocations were successfully constructed,manifesting atomic surface roughness and structural *** work provides insights into designing and optimizing customized Transition metal dichalcogenides（TMDs）materials in controlled synthesis and defect engineering.

关键词： Tungsten disulfide Tungsten diselenide Sulfurization Dislocations Strain and displacement fields

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In-situ photoisomerization of azobenzene to inhibit ion-migration for stable high-efficiency perovskite solar cells

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Journal of Energy Chemistry 2022年第10期31卷 556-564,I0014页

作者： Xuejiao Zuo Yiyang He Hongyu Ji Yong Li Xiuying Yang Binxun Yu Tao Wang Zhike Liu Wenliang Huang Jing Gou Ningyi Yuan Jianning Ding Shengzhong Frank Liu Shaanxi Key Laboratory for Advanced Energy Devices Shaanxi Engineering Lab for Advanced Energy TechnologySchool of Materials Science and EngineeringShaanxi Normal UniversityXi’an 710119ShaanxiChina School of Chemistry and Chemical Engineering Shaanxi Normal UniversityXi’an 710119ShaanxiChina School of Materials Science and Engineering Jiangsu Collaborative Innovation Center of Photovoltaic Science and EngineeringJiangsu Province Cultivation Base for StateKey Laboratory of Photovoltaic Science and TechnologyChangzhou UniversityChangzhou 213164JiangsuChina

Ion migration is a notorious problem in perovskite solar cells(PSCs)that severely mutilates device ***,a strategy to inhibit ion migration in situ is developed by using photoisomerization of azobenzene(AZO)to immobilize cations in the *** the nucleation process,the photoisomerized cis-AZO reacts with FA^(+),MA^(+)and Pb2+cations in the perovskite precursor by synergistic cation-πinteraction and Lewis base coordination,leading to heterogeneous nucleation to produce uniform perovskite ***,it accelerates conversion of intermediate yellowδ-phase to desired black aphase of FAPb I3for improved crystallinity with well-passivated grain ***,defect density is effectively reduced for the perovskite film to demonstrate suppressed carrier recombination and enhanced carrier ***,the solar cell efficiency is elevated from 21.29%to 23.58%with negligible J-V ***-term stability is also improved,with the bare device without any encapsulation retaining 84%of its initial efficiency after aging 744 hours in ambient.

关键词： Perovskite Solar cell Photovoltaic Photoisomerization

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