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A dual-functional poly(vinyl alcohol)/poly(lithium acrylate)composite nanofiber separator for ionic shielding of polysulfides enables high-rate and ultra-stable Li-S batteries

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Nano Research 2021年第5期14卷 1541-1550页

作者： Chunyang Zhou Jing Wang Xiaobo Zhu Kai Chen yue ouyang yue Wu yue-E Miao Tianxi Liu State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringInnovation Center for Textile Science and TechnologyDonghua University2999 North Renmin RoadShanghai201620China Key Laboratory of Synthetic and Biological Colloids Ministry of EducationSchool of Chemical and Material EngineeringJiangnan UniversityWuxi214122China Research Center for Analysis and Measurement Donghua UniversityShanghai201620China Bristol Composites Institute(ACCIS) Department of Aerospace EngineeringQueen’s BuildingUniversity of BristolUniversity WalkBristolBS81TRUK

Despite the high theoretical specific capacity,the main challenges of rechargeable lithium-sulfur(Li-S)batteries,including the unceasing shuttle of soluble lithium polysulfides(LiPSs)and severe Li corrosion,seriously hinder their commercial and practical ***,a bifunctional polyvinyl alcohol/poly(lithium acrylate)(C-PVA/PAA-Li)composite nanofiber separator is developed to address the main challenges in Li-S batteries by simultaneously allowing rapid lithium ion transport and ionic shielding of *** C-PVA/PAA-Li composite nanofiber membrane is prepared via the facile electrospinning strategy,followed by thermal crosslinking and in-situ lithiation *** from the conventional Celgard-based coating methods accompanied by impaired lithium ion transport efficiency,the C-PVA/PAA-Li composite nanofiber membrane possesses well-developed porous structures and high ionic conductivity,thus synergistically reducing the charge transfer resistance and inhibiting the growth of lithium *** resulting Li-S batteries exhibit an ultra-low fading rate of 0.08%per cycle after 400 cycles at 0.2 C,and a capacity of 633 mAhg−1 at a high current density of 3 *** study presents an inspiring and promising strategy to fabricate emerging dual-functional separators,which paves the pathway for the practical implementation of ultra-stable and reliable Li-S battery systems.

关键词： nanofiber separator electrospinning ionic shielding dendrite-free lithium-sulfur battery

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Carbon Fiber Supported Binary Metal Sulfide Catalysts with Multi-Dimensional Structures for Electrocatalytic Nitrogen Reduction Reactions Over a Wide pH Range

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Advanced Fiber Materials 2021年第4期3卷 229-238页

作者： Tianyi Zhang Wei Zong yue ouyang yue Wu yue-E Miao Tianxi Liu State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringInnovation Center for Textile Science and TechnologyDonghua University2999 North Renmin RoadShanghai 201620People’s Republic of China Research Center for Analysis and Measurement Donghua UniversityShanghai 201620People’s Republic of China Key Laboratory of Synthetic and Biological Colloids Ministry of EducationSchool of Chemical and Material EngineeringJiangnan UniversityWuxi 214122People’s Republic of China

Green and environmentally friendly electrocatalytic nitrogen(N_(2))fixation to synthesize ammonia(NH3)is recognized as an effective method to replace the traditional Haber-Bosch ***,the difficulties in N_(2) adsorption and fracture of hard N≡N bond still remain major challenges in electrocatalytic N_(2) reduction reactions(NRR).From the perspectives of enhancing N_(2) adsorption and providing more catalytic sites,two-dimensional(2D)FeS_(2) nanosheets and three-dimensional(3D)metal organic framework-derived ZnS embedded within N-doped carbon polyhedras are grown on the carbon cloth(CC)template in this ***,a composite NRR catalyst with multi-dimensional structures,which is signed as FeS_(2)/ZnS-NC@CC,is obtained for using over a wide pH *** uniform distribution of hollow ZnS-NC frameworks and FeS_(2) nanosheets on the surface of CC largely increase the N_(2) enrichment efficiency and offer more active sites,while the CC skeleton acts as an independent conductive substrate and S-doping helps promote the fracture of N≡N bond during the NRR *** a result,the FeS_(2)/ZnS-NC@CC electrode achieves a high Faraday efficiency of 46.84%and NH3 yield of 58.52μg h^(−1) mg^(−1) at-0.5 V ***/AgCl in 0.1 M ***,the FeS_(2)/ZnS-NC@CC electrode displays excellent NRR catalytic activity in acidic and neutral electrolytes as well,which outperforms most previously reported electrocatalysts including noble ***,this work provides a new way for the design of multi-dimensional electrocatalysts with excellent electrocatalytic efficiency and stability for NRR applications.

关键词： Multi-dimensional structure Heteroatom doping Carbon fiber cloth Electrocatalytic nitrogen reduction

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Electrochemical biomaterials for self-powered implantable“tissue batteries”:A tutorial review

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Nano Research 2023年第4期16卷 5447-5463页

作者： Manhui Zheng Xuechuan Wang ouyang yue Zhongxue Bai Boqiang Cui Xinhua Liu College of Bioresources Chemical and Materials Engineering Shaanxi University of Science&TechnologyXi'an 710021China Institute of Biomass&Functional Materials Shaanxi University of Science&TechnologyXi'an 710021China

Currently,due to improvements in living standards,people are paying more attention to all-around disease prevention and health ***-powered implantable“tissue batteries”integrated with electrochemical materials are essential for disease prevention,diagnosis,treatment,postoperative therapy,and healthcare *** propose and define new concepts of“tissue batteries”-self-powered tissue batteries(SPTBs)-are flexible self-powered implantable systems or platforms based on electroactive biomaterials,acting at the interface of biological *** on the electrical phenomenon of living organisms in life activities,there has been an increased attention to SPTBs for tissue repair *** take advantages of both the preeminent biocompatibility of biomaterials and the promotion of time-honored electrical stimulation therapy for tissue recovery,which are very promising for human illness ***,studies on clinical applications of SPTBs are impeded by a lack of comprehensive cognitive assessment of ***,SPTBs for life and health applications are comprehensively ***,electrochemical materials and their across-the-board applications for several types of SPTBs are introduced and compared with regard to disease prevention,diagnosis,precision therapy,and personalized health ***,the potential mechanisms for SPTBs for tissue repair promotion are ***,the prospective challenges are summarized and recommendations for future research are *** review elucidates on the significance and versatility of SPTBs for various medical applications.

关键词： electrochemical biomaterials self-powered implantable tissue batteries medical applications

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Microstructure evolution of Ti_(48)Zr_(27)Cu_(6)Nb_(5)Be_(14)amorphous alloy after semi-solid isothermal treatment

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China Foundry 2024年第3期21卷 287-294页

作者： Xin-hua Huang Jing-wen Pu Yong-xin Luo yue-jun ouyang School of Material Electricity and Intelligent ManufacturingHuaihua UniversityHuaihua 330031HunanChina Hunan Renewable Aluminum Innovation Research Center Huaihua UniversityHuaihua 330031HunanChina

The as-cast amorphous Ti_(48)Zr_(27)Cu_(6)Nb_(5)Be_(14)composites,comprising in situ formedβ-Ti ductile crystalline precipitates,were prepared by water cooled copper mold suction ***,the semi-solid composites were obtained after the as-cast composites were treated by semi-solid isothermal *** microstructure evolution and kinetics of the composites were *** show that the microstructures of both the as-cast and semi-solid composites comprise ofβ-Ti crystal phases and amorphous matrix *** and after treatment,the crystals evolve from fine granular or fine dendritic crystals to coarse *** the treatment temperature increasing or the time prolonging,the average crystal size gradually increases and the surface morphology of the crystals gradually becomes *** studying the microstructural evolution and dynamics during the isothermal treatment process,it is found that the final morphology ofβ-Ti crystals is influenced by the isothermal treatment temperature and time(t),and theβ-Ti evolution rate increases with an increase in treatment *** addition,a linear relationship was observed between the size of cubicβ-Ti crystals(D^(3))and t;the growth kinetics factor K is 3.8μm^(3)·s^(-1).As the K value closes to 4μm^(3)·s^(-1),it is inferred the morphology evolution ofβ-Ti crystals is a coarsening behavior controlled by the diffusion of solute elements.

关键词： Ti_(48)Zr_(27)Cu_(6)Nb_(5)Be_(14) amorphous matrix composites semi-solid as-cast microstructure

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In-situ constructed polymer/alloy composite with high ionic conductivity as an artificial solid electrolyte interphase to stabilize lithium metal anode

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Nano Research 2023年第3期16卷 3888-3894页

作者： Ai-Long Chen Yushan Qian Shujun Zheng Yuyang Chen yue ouyang Lulu Mo Zheng-Long Xu yue-E Miao Tianxi Liu State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringDonghua UniversityShanghai 201620China Department of Industrial and Systems Engineering The Hong Kong Polytechnic UniversityHong HumKowloonHong Kong 999077China Key Laboratory of Synthetic and Biological Colloids Ministry of EducationSchool of Chemical and Material EngineeringJiangnan UniversityWuxi 214122China

Lithium(Li)metal is regarded as the best anode material for lithium metal batteries(LMBs)due to its high theoretical specific capacity and low redox ***,the notorious dendrites growth and extreme instability of the solid electrolyte interphase(SEI)layers have severely retarded the commercialization process of ***,a double-layered polymer/alloy composite artificial SEI composed of a robust poly(1,3-dioxolane)(PDOL)protective layer,Sn and LiCl nanoparticles,denoted as PDOL@Sn-LiCl,is fabricated by the combination of in-situ substitution and polymerization processes on the surface of Li metal *** lithiophilic Sn-LiCl multiphase can supply plenty of Li-ion transport channels,contributing to the homogeneous nucleation and dense accumulation of Li *** mechanically tough PDOL layer can maintain the stability and compact structure of the inorganic layer in the long-term cycling,and suppress the volume fluctuation and dendrites formation of the Li metal *** a result,the symmetrical cell under the double-layered artificial SEI protection shows excellent cycling stability of 300 h at 5.0 mA·cm^(−2)for 1 mAh·cm^(−2).Notably,the Li||LiFePO_(4)full cell also exhibits enhanced capacity retention of 150.1 mAh·g^(−1)after 600 cycles at 1.0 ***,the protected Li foil can effectively resist the air and water corrosion,signifying the safe operation of Li metal in practical *** present finding proposed a different tactic to achieve safe and dendrite-free Li metal anodes with excellent cycling stability.

关键词： polymer/alloy composite in-situ polymerization artificial solid electrolyte interphase(SEI) double-layered structure lithium metal battery.

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A simple and convenient method for the synthesis of S-aryl phosphorothioates catalyzed by cesium hydroxide

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Chinese Chemical Letters 2013年第12期24卷 1103-1105页

作者： yue-Jun ouyang Yuan-Yuan Li Ning-Bo Li Xin-Hua Xu Department of Chemistry and Chemical Engineering Huaihua University College of Chemistry and Chemical Engineering Hunan University

In the presence of a catalytic amount of cesium hydroxide, the corresponding S-aryl phosphorothioates can he obtained by the reactions of dialkyl phosphites with diaryldisulfides in excellent yields at room temperature, using DMSO as a solvent. The reaction mechanism was discussed. The method provides a new and expedient path for the preparation of $-aryl phosphorothioates.

关键词： Cesium hydroxide Diaryldisulfides O O-Dialkyl-S-arylphosphorothioates

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Interface-induced polymerization strategy for constructing titanium dioxide embedded carbon porous framework with enhanced chemical immobilization towards lithium polysulfides

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Nano Research 2024年第3期17卷 1473-1481页

作者： yue ouyang Xiaoxiao Li Jiexin Zhu Wei Zong Yuhang Dai Xuan Gao Wei Zhang Shengyuan Yang Roohollah Bagherzadeh Feili Lai yue-E Miao Tianxi Liu State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringDonghua University2999 North Renmin RoadShanghai 201620China The Key Laboratory of Synthetic and Biological Colloids Ministry of EducationSchool of Chemical and Material EngineeringJiangnan UniversityWuxi 214122China Advanced Fibrous Materials LAB Institute for Advanced Textile Materials and Technologies(ATMT)School of Advanced Materials and ProcessesAmirkabir University of TechnologyTehran 15914Iran Christopher Ingold Laboratory Department of ChemistryUniversity College London20 Gordon StreetLondon WC1H 0AJUK Department of Chemistry KU LeuvenCelestijnenlaan 200FLeuven 3001Belgium

The shuttle effect induced by soluble lithium polysulfides(LiPSs)is known as one of the crucial issues that limit the practical applications of lithium-sulfur(Li-S)***,a titanium dioxide nanoparticle embedded in nitrogen-doped porous carbon nanofiber(TiO_(2)@NCNF)composite is constructed via an interface-induced polymerization strategy to serve as an ideal sulfur *** the protection of the nanofiber walls,the uniformly dispersed TiO_(2) nanocrystalline can act as capturing centers to constantly immobilize LiPSs towards durable sulfur ***,the mesoporous microstructure in the fibrous framework endows the TiO_(2)@NCNF host with strong physical reservation for sulfur and LiPSs,sufficient pathways for electron/ion transfer,and excellent endurance for volume *** expected,the sulfur-loaded TiO_(2)@NCNF composite electrode presents a fabulous rate performance and long cycle lifespan(capacity fading rate of 0.062%per cycle over 500 cycles)at 2.0 ***,the assembled Li-S batteries harvest superb areal capacity and cycling stability even under high sulfur loading and lean electrolyte conditions.

关键词： interface-induced polymerization electrospun porous nanofibers lithium-sulfur(Li-S)batteries high sulfur loading lithium polysulfides(LiPSs)immobilization

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Multifunctional electroactive bio-adhesive for robustly-integrated wound therapy and postoperative wound-status warning and assessment

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Nano Research 2024年第5期17卷 4359-4370页

作者： ouyang yue Xuechuan Wang Mengdi Hou Siwei Sun Manhui Zheng Xiaoliang Zou Zhongxue Bai Chunlin Liu Xinhua Liu College of Bioresources Chemical and Materials Engineering Shaanxi University of Science&TechnologyXi’an 710021China College of Pharmacy Shaanxi University of Chinese MedicineXi’an 710021China Institute of Basic and Translational Medicine Xi’an Medical UniversityXi’an 710021China School of Mechanical Engineering Chengdu UniversityChengdu 610000China

Wound abnormalities such as secondary wound laceration and inflammation are common postoperative health hazards during clinical *** continuous treatment,healing induction,and real-time visualization of wound status and complications,including wound re-tearing,inflammation,and morphology,are key focal points for comprehensive ***,an on-demand quadruple energy dissipative strategy was proposed for the nanoengineering of a physically and chemically synergistic double-layer gelatin-based bio-adhesive(DLGel)by combining a multi-network adhesive layer and a versatile electroactive energy dissipative layer based on contrivable interlocking micro-pillar arrays and crosslinked polymer *** subtly multiple energy dissipation designs enable DLGel with robust adhesive strength to omnipotently wet and dynamic tissue,providing a basis for reliable wound *** achieves comprehensive wound-healing induction through electrical stimulation and possesses reversible underwater light/thermal adhesion,excellent hemostatic performance,outstanding antimicrobial properties,and self-repair ***,a novel deep-learning strategy is creatively established to respond to mechanical deformation due to wound *** strategy translates biological information into visual graphics,providing real-time early warning and assessment of postoperative wound-abnormality/-morphology,such as laceration,inflammation,and ***,DLGel and its associated signal collection and processing protocol enable the integration of reliable wound closure,wound healing,and real-time postoperative wound-status warning and assessment within the unobservable and undetectable“black box”regions in a context of non-clinical comprehensive therapy.

关键词： electroactive bio-adhesive quadruple energy dissipation comprehensive wound therapy postoperative wound-status warning and assessment

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Nature-skin-derived multi-responsive e-skin as on-demand drug-delivery system facilitated melanoma postoperative therapy

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Journal of Materials Science & Technology 2024年第21期188卷 155-168页

作者： Manhui Zheng Xuechuan Wang Jiamin Zhang ouyang yue Jingyu Zhang Zhongxue Bai Huie Jiang Jiang Wu Ling Wen Xinhua Liu College of Bioresources Chemical and Materials Engineering Shaanxi University of Science&TechnologyXi’an 710021China Institute of Biomass&Functional Materials Shaanxi University of Science&TechnologyXi’an 710021China Department of General Surgery The Second Affiliated Hospital of Soochow UniversitySuzhou 215004China School of Pharmaceutical Sciences Key Laboratory of Biotechnology and Pharmaceutical EngineeringWenzhou Medical UniversityWenzhou 325035China Department of Radiology Dushu Lake Hospital Affiliated to Soochow UniversitySuzhou 215000China

An ideal strategy for integrated melanoma treatment involves the pursuit of multifunctional biomaterials that possess adjuvant therapy functions,enabling full-scale postoperative relapse prevention,wound healing,and real-time postoperative *** simulation of electronic skin(e-skin),which emulates the mechanical properties and functions of natural skin,holds significant potential for broad biomedical ***,a novel multi-responsive controlled-release e-skin(PADM-MX-Ag-Si@Dox)was developed using natural porcine dermal matrix,MXene nanosheets,silver nanowires(AgNWs),and mesoporous hollow silica microspheres(TSOHSiO_(2)@Dox)for *** resulting e-skin exhibited temperature-,pH-,and electric-responsiveness due to the incorporation of TSOHSiO_(2)@Dox microspheres,which allowed for on-demand controlled-release of *** biomimetic structure of porcine acellular dermal matrix(PADM)can significantly accelerate the wound healing process under the synergistic effect of electrical stimulation(ES).PADM-MX-Ag-Si@Dox has demonstrated remarkable antimicrobial and electrophysiological activities,thereby establishing a robust basis for enhancing wound healing and facilitating real-time postoperative tumor *** in vitro and in vivo investigations have substantiated that the combined utilization of PADM-MX-Ag-Si@Dox and ES results in a proactive amalgamation of melanoma postoperative relapse prevention,wound healing,and real-time postoperative surveillance,thereby establishing a potent therapeutic approach for postoperative cancer adjuvant therapy and paving the way for novel precision medical care.

关键词： Acellular dermal matrix Multi-responsive properties Drug-delivery system Melanoma postoperative therapy,Wound healing

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Electroactive polymeric nanofibrous composite to drive in situ construction of lithiophilic SEI for stable lithium metal anodes

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eScience 2022年第2期2卷 192-200页

作者： Ai-Long Chen Nan Shang yue ouyang Lulu Mo Chunyang Zhou Weng Weei Tjiu Feili Lai yue-E Miao Tianxi Liu State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringDonghua UniversityShanghai201620PR China Key Laboratory of Synthetic and Biological Colloids Ministry of EducationSchool of Chemical and Material EngineeringJiangnan UniversityWuxi214122PR China Department of Chemistry KU LeuvenCelestijnenlaan 200FLeuven3001Belgium Institute of Materials Research and Engineering Agency for ScienceTechnology and Research(A^(*)STAR)2 Fusionopolis Way138634Singapore

Uncontrolled lithium dendrite growth hinders the practical application of lithium metal batteries(LMBs).Herein,we report a novel Li^(+) flux distributor achieved by placing an electroactive polyvinylidene fluoride/polymethyl methacrylate(PVDF/PMMA)composite nanofiber interlayer on a current collector,inducing uniform lithium deposition to mitigate the dendrite ***,the released PMMA reacts with Liþto form abundant C–O–Li bonds and generate in situ a stable lithiophilic PMMA-Li solid electrolyte interphase *** calculations reveal that polar C–F groups in the PVDF framework and lithiophilic PMMA-Li provide homo-dispersed Li^(+) migration pathways with low energy ***,uniform Li nucleation is achieved at the molecular level,resulting in ultrahigh cycling stability with dendrite-free Li deposition at 5 mA cm^(-2) and 5 mAh cm^(-2)for over 500 *** PVDF/PMMA||Li||LiFePO_(4)(LFP)full cell presents an increased rate capacity of 110 mAh g^(-1) at 10 *** addition,a soft-package battery demonstrates a high energy density of 289 Wh kg^(-1).This work provides a facile design for stable lithium metal anodes to promote the practical use of LMBs and other alkali metal batteries.

关键词： Electroactive polymer nanofibers Electrospinning Li^(+)flux regulation Dendrite-free Lithium metal battery

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