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Boosting Lithium Storage in Graphene-Sandwiched Cathodes Containing Multi-Carbonyl Polyquinoneimine Nanosheets

Energy & Environmental Materials 2023年第5期6卷 299-306页

作者： Zongying Xiao Gaoqiang Xiang Qing Zhang Yonglin Wang yingkui yang Hubei Engineering Technology Research Centre of Energy Polymer Materials School of Chemistry and Materials ScienceSouth-Central Minzu UniversityWuhan 430074China Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education&Hubei Key Laboratory of Catalysis and Materials Science South-Central Minzu UniversityWuhan 430074China

Carbonyl polymers as booming electrode materials for lithium-organic batteries are currently limited by low practical capacities and poor rate performance due to their inherent electronic insulation and microscopic agglomeration *** graphene/carbonyl-enriched polyquinoneimine(PQI@Gr)composites were readily prepared by in situ hydrothermal polycondensation of dianhydride and anthraquinone co-monomer salts in the presence of graphene oxide(GO).Conductive graphene sheets derived from hydrothermal reduction of GO are fully sandwiched between densely interlaced quinone-containing polyimide ***,the as-fabricated PQI@Gr cathodes exhibit much larger specific capacity(205 mAh g^(-1)at 0.1 A g^(-1)),higher carbonyl utilization(up to 89.9%),and better rate capability(179.4 mAh g^(-1)at 5.0 A g^(-1))due to a surface-dominated capacitive process via fast kinetics compared to bare PQI electrode(162.5 mAh g^(-1)at 0.1 A g^(-1);67.5%;96.9 mAh g^(-1)at 5 A g^(-1)).The capacity retention as high as 73%for PQI@Gr is also achieved over ultra-long 10000 cycles at 5.0 A g^(-1).Such outstanding electrochemical performances are attributable to the combined merits of polyimides and polyquinones,and robust 3D hierarchical heterostructures with efficient conductive networks,abundant porous channels for electrolyte infiltration and ion accessibility,and highly exposed carbonyl *** work offers new insights into the development of high-performance polymer electrodes for sustainable batteries.

关键词： graphene high-capacity cathode high-rate lithium storage polyquinoneimine sandwiched composites

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A Hierarchical Helical Carbon Nanotube Fiber Artificial Ligament

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Advanced Fiber Materials 2023年第5期5卷 1549-1551页

作者： Chunxue Li Ruilong Jia yingkui yang Guangfu Liao College of Ecological Environment and Urban Construction Fujian University of TechnologyFuzhou 350118China The Key Research Laboratory of Benefiting Qi for Acting Blood Circulation Method to Treat Multiple Sclerosis of State Administration of Traditional Chinese Medicine/Research Center of Neurobiology Shanxi University of Chinese MedicineJinzhong 030619People’s Republic of China State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhan 430200China College of Material Engineering Fujian Agriculture and Forestry UniversityFuzhou 350002China

For the optimal functional recovery of force-transmitting connective tissues,obtaining grafts that are mechanically robust and integrating them with host bone effectively to tolerate high loads during violent joint motions is both crucial and *** research proposes that a hierarchical helical carbon nanotube fiber,which has the considerably high mechanical strength,and can integrate with the host bone and restore movement in animals,is a very promising artificial *** above research marks a significant development in artificial ligament via the innovative utilization of hierarchical helical carbon nanotube fiber.

关键词： Hierarchical helical carbon nanotube fiber Artificial ligament Mechanical strength Large animal models

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Interwoven Poly(Anthraquinonyl Sulfide)Nanosheets-Decorated Carbon Nanotubes as Core-Sheath Heteroarchitectured Cathodes for Polymer-Based Asymmetrical Full Batteries

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Energy & Environmental Materials 2023年第5期6卷 468-476页

作者： Yonglin Wang Kai Chen Yunhai Zhu Jiazhi Wang Nan Jiang yingkui yang Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education&Hubei Key Laboratory of Catalysis and Materials Science South-Central Minzu UniversityWuhan 430074China State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhan 430200China School of Chemistry and Materials Science University of Science and Technology of ChinaHefei 230026China

Organic redox-active polymers provide promising alternatives to metal-containing inorganic compounds in Li-ion batteries(LIBs),whereas suffer from low actual capacities,poor rate/power capabilities,and inferior cycling ***,poly(anthraquinonyl sulfide)-coated carbon nanotubes(CNT@PAQS)are readily performed by in situ polymerization to form core-sheath ***,flower-like PAQS nanosheets are interwoven around CNTs to synergistically create robust 3D hierarchical networks with abundant cavities,internal channels,and sufficiently-exposed surfaces/edges,thereby promoting electron transport and making more active sites accessible for electrolytes and guest ***,the as-fabricated CNT@PAQS cathode delivers the large reversible capacity(200.5 mAh g^(-1)at 0.05 A g^(-1)),high-rate capability(161.5 mAh g^(-1)at 5.0 A g^(-1)),and impressive cycling stability(retaining 88.0%over 1000 cycles).In addition,an asymmetric full-battery using CNT@PAQS as a cathode and cyclized polyacrylonitrile-encapsulated CNTs as an anode is assembled that delivers a high energy density of 86.3 Wh kg^(-1),and retains 81.3%of initial capacity after 1000 *** work opens up an efficient strategy to combine highly conductive and redox-active phases into core-sheath heterostructures to unlock the barrier of high-rate charge *** further integration of two polymer-based electrodes into asymmetric full cells would also consolidate the development of low-cost,sustainable,and powerful batteries.

关键词： all-organic batteries core-sheath heterostructures lithium-ion batteries polymer electrode materials

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Electrospun carbon nanofiber-supported V_(2)O_(3) with enriched oxygen vacancies as a free-standing high-rate anode for an all-vanadium-based full battery

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Carbon Energy 2024年第9期6卷 15-28页

作者： Qi Lai Bincen Yin Yu Dou Qing Zhang Yunhai Zhu yingkui yang School of Chemistry and Materials Science South-Central Minzu UniversityWuhanChina State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhanChina

Synergistic regulation of hierarchical nanostructures and defect engineering is effective in accelerating electron and ion transport for metal oxide ***,carbon nanofiber-supported V_(2)O_(3) with enriched oxygen vacancies(OV-V_(2)O_(3)@CNF)was fabricated using the facile electrospinning method,followed by thermal *** from the traditional particles embedded within carbon nanofibers or irregularly distributed between carbon nanofibers,the free-standing OV-V_(2)O_(3)@CNF allows for V_(2)O_(3) nanosheets to grow vertically on one-dimensional(1D)carbon nanofibers,enabling abundant active sites,shortened ion diffusion pathway,continuous electron transport,and robust structural ***,density functional theory calculations confirmed that the oxygen vacancies can promote intrinsic electron conductivity and reduce ion diffusion energy ***,the OV-V_(2)O_(3)@CNF anode delivers a large reversible capacity of 812 mAh g^(-1) at 0.1 A g^(-1),superior rate capability(405 mAh g^(-1) at 5 A g^(-1)),and long cycle life(378 mAh g^(-1) at 5 A g^(-1) after 1000 cycles).Moreover,an all-vanadium full battery(V2O5//OV-V_(2)O_(3)@CNF)was assembled using an OV-V_(2)O_(3)@CNF anode and a V2O5 cathode,which outputs a working voltage of 2.5 V with high energy density and power density,suggesting promising practical *** work offers fresh perspectives on constructing hierarchical 1D nanofiber electrodes by combining defect engineering and electrospinning technology.

关键词： electrospun electrode full battery oxygen vacancy vanadium trioxide

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Superior Anodic Lithium Storage in Core–Shell Heterostructures Composed of Carbon Nanotubes and Schiff-Base Covalent Organic Frameworks

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Energy & Environmental Materials 2024年第6期7卷 150-157页

作者： Nan Jiang Mengpei Qi Yalong Jiang Yin Fan Shiwei Jin yingkui yang School of Chemistry and Materials Science South-Central Minzu UniversityWuhan 430074China State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhan 430200China

Covalent organic frameworks(COFs)after undergoing the superlithiation process promise high-capacity anodes while suffering from sluggish reaction kinetics and low electrochemical utilization of redox-active ***,integrating carbon nanotubes(CNTs)with imine-linked covalent organic frameworks(COFs)was rationally executed by in-situ Schiff-base condensation between 1,1′-biphenyl]-3,3′,5,5′-tetracarbaldehyde and 1,4-diaminobenzene in the presence of CNTs to produce core–shell heterostructured composites(CNT@COF).Accordingly,the redox-active shell of COF nanoparticles around one-dimensional conductive CNTs synergistically creates robust three-dimensional hybrid architectures with high specific surface area,thus promoting electron transport and affording abundant active functional groups accessible for electrochemical utilization throughout the whole ***,upon the full activation with a superlithiation process,the as-fabricated CNT@COF anode achieves a specific capacity of 2324 mAh g^(−1),which is the highest specific capacity among organic electrode materials reported so ***,the superior rate capability and excellent cycling stability are also *** redox reaction mechanisms for the COF moiety were further revealed by Fourier-transform infrared spectroscopy in conjunction with X-ray photoelectron spectroscopy,involving the reversible redox reactions between lithium ions and C=N groups and gradual electrochemical activation of the unsaturated C=C bonds within COFs.

关键词： heterostructured anode core-shell nanostructures carbon nanotubes polymeric Schiff-bases covalent organic frameworks

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Synthesis and photo-responsive behaviors of hollow polyazobenzene micro-spheres

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Chinese Science Bulletin 2010年第30期55卷 3441-3447页

作者： WANG XiaoTao yang yingkui yang ZhiFang LIAO YongGui ZHANG Wei XIE XiaoLin State Key Laboratory of Plastic Forming Simulation and Die & Mould Technology School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan 430074 China Faculty of Materials Science and Engineering Hubei University Wuhan 430062 China

By means of distillation precipitation polymerization,the silica-hybrid particles with polyazobenzene shell (PAzo@SiO2) microspheres were prepared with 6-(4-methoxy-4'-oxy-azobenzene) hexyl methacrylate (Azo-M) as monomer,divinylbenzene (DVB) as cross-linker,and ～250 nm vinylated sol-gel silica particles as template. Hollow polyazobenzene microspheres were further developed after selective removal of the silica cores with HF solution. When the content of DVB related to Azo-M is 20 wt%,the acetonitrile is 200 mL,and the polymerization time is 4.5 h,the hollow PAzo microspheres with about 20 nm shell are successfully fabricated. These hollow PAzo microspheres have excellent reversible photoisomerization,and their first-order rate constant of trans-cis isomerization only decreases 11.8% compared with homopolymer of azobenzene (Homo-PAzo).

关键词：空心微球光响应甲基丙烯酸甲酯行为合成二乙烯基苯顺反异构化偶氮苯

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Emerging Carbonyl Polymers as Sustainable Electrode Materials for Lithium-Free Metal-Ion Batteries

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Energy & Environmental Materials 2022年第4期5卷 1037-1059页

作者： Qing Zhang Yu Dou Qiming He Shuyi Deng Qihua Huang Shaozhuan Huang yingkui yang Hubei Engineering Technology Research Centre of Energy Polymer Materials School of Chemistry and Materials ScienceSouth-Central University for NationalitiesWuhan 430074China Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education&Hubei Key Laboratory of Catalysis and Materials Science South-Central University for NationalitiesWuhan 430074China Dr.Q.ZhangQ.HeS.D

Lithium-ion batteries using inorganic electrode materials have been long demonstrated as the most promising power supplies for portable electronics,electric vehicles,and smart ***,the increasing cost and descending availability of lithium resources in combination with the limited electrochemical performance and eco-sustainability have created serious concerns with the competitiveness of lithium-ion *** is a pressing need for the discovery of new redox chemistries between the alternative host materials and charge *** nonlithium batteries using organic electrodes have recently attracted considerable interests as the future substitutes for energy storage systems,because of their combined merits(e.g.,natural abundance,rich chemistry of organics,rapid kinetics,and multielectron redox)of Li-free batteries and organic ***,an overview on the state-of-the-art developments of emerging carbonyl polymers for nonlithium metal-ion batteries is comprehensively presented with a primary focus on polyquinones and polyimides from the perspective of chain *** distinct categories,including monovalent(Na^(+),K^(+)) and multivalent(Mg^(2+),Zn^(2+),Ca^(2+),Al^(3+)) metal-ions batteries are individually *** of polymer electrode materials and characteristics of charge storage mechanisms are *** key performance parameters such as specific capacity,rate capability,and cycle stability are carefully ***,aqueous nonlithium batteries based on carbonyl polymers are specially scrutinized due to the less reactivity of Li-free metals when exposed in aqueous electrolytes and ambient *** challenges and future prospects of developing polymer-based batteries are proposed *** review provides a fundamental guidance for the future advancement of next-generation sustainable batteries beyond lithium-ion batteries.

关键词： carbonyl polymers lithium-free batteries organic electrodes polyimides polyquinones

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Control on self-assembly structures of rod-coil-rod (PANI)_(98) -(PEG)_(136) -(PANI)_(98) triblock copolymer

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Frontiers of Chemical Science and Engineering 2008年第1期2卷 85-88页

作者： Zhifang yang Jingao WU yingkui yang Xingping ZHOU Xiaolin XIE Department of Chemistry and Chemical Engineering Huazhong University of Science and TechnologyWuhan 430074China

The self-assembly behaviors of the rod-coil-rod(PANI)_(98)-(PEG)_(136)-(PANI)_(98) triblock copolymer are investigated in different solvents,such as N-methyl-2-pyrrolidone(NMP),dimethyl formamide(DMF),ethanol and *** effects of solvents,concentration and ultrasonic irradiation on self-assembly are *** results indicate that the triblock copolymer forms particles,rods,fiber,networks and fiber bands in the above solvents,***,the triblock copolymer can form a multi-layer,tri-dimensional fibrous network and a petaline structure from the mono-layer fibrous network with the increase of its concentration in ***,the ultrasonic irradiation has a great effect on the self-assembly of the triblock copolymer.

关键词： block copolymer self-assembly selective solvent

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Designing Advanced Aqueous Zinc-Ion Batteries:Principles,Strategies,and Perspectives

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Energy & Environmental Materials 2022年第3期5卷 823-851页

作者： Yan Li Zhouhao Wang Yi Cai Mei Er Pam yingkui yang Daohong Zhang Ye Wang Shaozhuan Huang Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education&Hubei Key Laboratory of Catalysis and Materials Science South-Central University for NationalitiesWuhan 430074China School of Materials Science and Engineering Nanyang Technological UniversitySingapore Singapore Department of Electrical&Computer Engineering National University of Singapore4 Engineering Drive 3Singapore 117583Singapore Key Laboratory of Material Physics Ministry of EducationSchool of Physics and MicroelectronicsZhengzhou UniversityZhengzhou 450052China

Aqueous zinc-ion batteries(AZIBs)are an appealing battery system due to their low cost,intrinsic safety,and environmental-friendliness,while their application is plagued by the obstacles from the cathode,electrolyte,and zinc *** the design principles and strategies toward the optimization of cathode,electrolyte,and zinc anode is crucial for the development of ***,we present a comprehensive analysis of the design principles and promising strategies toward the improvement of ***,the various reaction mechanisms are summarized and the existing issues associated with the cathode,electrolyte,and zinc anode are discussed to guide the rational design of ***,we provide an in-depth and comprehensive discussion on the design principles and strategies for the electrodes/electrolyte/separator optimization,and analyze the advantages and disadvantages of various ***,the design principles and strategies of the newly appeared conversion-type AZIBs,such as Zn-S battery and Zn-Se battery,are also discussed and *** effect of design strategies on the electrochemical performance and the relationship between the current issues and strategies are also unveiled in ***,some research trends and perspectives are provided for designing better AZIBs.

关键词： aqueous zinc-ion batteries cathode modification design principles electrolyte regulation zinc anode optimization

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Photothermal‐boosted polaron transport in Fe_(2)O_(3)photoanodes for efficient photoelectrochemical water splitting

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Carbon Energy 2023年第9期5卷 38-48页

作者： Xiaoqin Hu Jing Huang Yu Cao Bing He Xun Cui Yunhai Zhu yang Wang Yihuang Chen yingkui yang Zhen Li Xueqin Liu State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhanHubeiChina Faculty of Materials Science and Chemistry China University of GeosciencesWuhanHubeiChina College of Chemistry and Materials Engineering Wenzhou UniversityWenzhouZhejiangChina

Introduction of the photothermal effect into transition-metal oxide photoanodes has been proven to be an effective method to improve the photoelectrochemical(PEC)water-splitting ***,the precise role of the photothermal effect on the PEC performance of photoanodes is still not well ***,spinel-structured ZnFe_(2)O_(4)nanoparticles are deposited on the surface of hematite(Fe_(2)O_(3)),and the ZnFe_(2)O_(4)/Fe_(2)O_(3)photoanode achieves a high photocurrent density of 3.17 mA cm^(-2)at 1.23 V versus a reversible hydrogen electrode(VRHE)due to the photothermal effect of ZnFe_(2)O_(4).Considering that the hopping of electron small polarons induced by oxygen vacancies is thermally activated,we clarify that the main reason for the enhanced PEC performance via the photothermal effect is the promoted mobility of electron small polarons that are bound to positively charged oxygen *** the synergistic effect of oxygen vacancies and the photothermal effect,the electron conductivity and PEC performance are significantly improved,which provide fundamental insights into the impact of the photothermal effect on the PEC performance of small polaron-type semiconductor photoanodes.

关键词： Fe_(2)O_(3)nanorods oxygen vacancies photoelectrochemical performance photothermal effect small polaron transport

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