检索结果-南通市图书馆

Nano Research 2024年第8期17卷 7020-7026页

作者： Jinhua He Chenhui Wang Mingrui Liu Muhammad Ramzan Zhiwei Long Xian-gang Wu Yu Chen Haizheng Zhong MIIT Key Laboratory for Low-Dimensional Quantum Structure and Devices School of Materials Science and EngineeringBeijing Institute of TechnologyBeijing 100081China Beijing Engineering Research Center for Mixed Reality and Advanced Display Technology School of Optics and PhotonicsBeijing Institute of TechnologyBeijing 100081China

The potential use of large-size ZnSe quantum dots as blue emitters for display applications has greatly inspired the colloidal ***,we report the negative effects of side reactions of large-size ZnSe quantum *** side reactions between oleic acid and oleylamine generated amidation products and H_(2)O,which led to the hydrolysis of Zn(OA)2 to Zn(OH)2 and the subsequent formation of zinc oxide(ZnO)and zinc bis[diphenylphosphinate](Zn(DPPA)2)*** side reactions resulted in the formation of a defective surface including a Se-rich surface and oxygen-related *** negative effects can be overcome by adopting an etching strategy using potassium fluoride and myristic acid in *** overcoating a ZnS shell,blue emissive ZnSe/ZnS quantum dots with a maximum photoluminescence quantum yield of up to 91%were *** further fabricated ZnSe quantum dots-based blue light-emitting diodes with an emission peak at 456 *** device showed a turn-on voltage of 2.7 V with a maximum external quantum efficiency of 4.2%and a maximum luminance of 1223 cd·m^(−2).

关键词： quantum dots ZnSe side reactions surface etching light-emitting diodes

Enhancing electrochemical capacity and interfacial stability of lithium-ion batteries through side reaction modulation with ultrathin carbon nanotube film and optimized lithium cobalt oxide particle size

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano Research 2024年第8期17卷 7230-7241页

作者： Wei Xi Xiaogang Xia Jiacheng Zhu Dehua Yang Sishen Xie Beijing National Laboratory for Condensed Matter Physics and Institute of Physics Chinese Academy of SciencesBeijing 100190China School of Physical Sciences University of Chinese Academy of SciencesBeijing 100049China Advanced Passivation Technology Lab College of Physics Science and TechnologyHebei UniversityBaoding 071002China

Lithium cobalt oxide(LCO),the first commercialized cathode active material for lithium-ion batteries,is known for high voltage and ***,its application has been limited by relatively low capacity and stability at high *** particle size is considered one of the most straightforward and effective strategies to enhance ion transfer,thus increasing the rate ***,side reactions are simultaneously enhanced as the specific surface area ***,we investigate the impact of LCO particles with varying size distributions and optimize the particle *** modulate the side reactions associated with particle size reduction,an ultrathin carbon nanotube film(UCNF)is introduced to coat the cathode *** this simple process and optimized particle size,the rate performance improves significantly,normal commercial LCO achieves 118 mA·h·g^(−1)at 3.0–4.3 V and 20 C(0.72 mA·h·cm^(−2)),corresponding to power density of 8732 W·kg^(−1).This method is applied to high voltage as well,152 mA·h·g^(−1)at 3.0–4.6 V and 20 C(0.99 mA·h·cm^(−2))was achieved with high-voltage LCO(HVLCO),corresponding to power density of 11,552 W·kg^(−1).The cycling stability is also enhanced,with the capacity retention maintaining more than 96%after 100 cycles at 0.1 *** the first time,UCNF is demonstrated to suppress the excessive decomposition of the electrolytes and solvents by blocking electron injection/extraction between LCO and electrolyte *** findings provide a simple method for improving LCO rate performance,especially at high C-rates.

关键词： lithium-ion batteries lithium cobalt oxides carbon nanomaterials side reactions

Interfacial parasitic reactions of zinc anodes in zinc ion batteries:Underestimated corrosion and hydrogen evolution reactions and their suppression strategies

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2022年第1期31卷 246-262,I0007页

作者： Aruuhan Bayaguud Yanpeng Fu Changbao Zhu State Key Laboratory of Optoelectronic Materials and Technologies Department of Materials Science and EngineeringKey Laboratory for Polymeric Composite and Functional Materials of Ministry of EducationSun-Yat Sen UniversityGuangzhou 510275GuangdongChina School of Materials and Energy Guangdong University of TechnologyGuangzhou 510006GuangdongChina

Featured with high power density,improved safety and low-cost,rechargeable aqueous zinc-ion batteries(ZIBs) have been revived as possible candidates for sustainable energy storage systems in recent ***,the challenges inherent in zinc(Zn) anode,namely dendrite formation and interfacial parasitic reactions,have greatly impeded their practical *** the critical issue of dendrite formation has attracted widespread concern,the parasitic reactions of Zn anodes with mildly acidic electrolytes have received very little *** that the low Zn reversibility that stems from interfacial parasitic reactions is the major obstacle to the commercialization of ZIBs,thorough understanding of these side reactions and the development of correlative inhibition strategies are ***,in this review,the brief fundamentals of corrosion and hydrogen evolution reactions at Zn surface is *** addition,recent advances and research efforts addressing detrimental side reactions are reviewed from the perspective of electrode design,electrode-electrolyte interfacial engineering and electrolyte *** facilitate the future researches on this aspect,perspectives and suggestions for relevant investigations are provided lastly.

关键词： Zinc anodes Mildly acidic electrolytes side reactions Coulombic efficiency Corrosions HER

Interfacial Engineering Strategy for High-Performance Zn Metal Anodes

在线全文

学校读者我要写书评

暂无评论

Nano-Micro Letters 2022年第1期14卷 121-151页

作者： Bin Li Xiaotan Zhang Tingting Wang Zhangxing He Bingan Lu Shuquan Liang Jiang Zhou School of Chemical Engineering North China University of Science and TechnologyTangshan 063009People’s Republic of China School of Materials Science and Engineering Key Laboratory of Electronic Packaging and Advanced Functional Materials of Hunan ProvinceCentral South UniversityChangsha 410083People’s Republic of China School of Physics and Electronics Hunan UniversityChangsha 410082People’s Republic of China

Due to their high safety and low cost,rechargeable aqueous Zn-ion batteries(RAZIBs)have been receiving increased attention and are expected to be the next generation of energy storage ***,metal Zn anodes exhibit a limited-service life and inferior reversibility owing to the issues of Zn dendrites and side reactions,which severely hinder the further development of *** have attempted to design high-performance Zn anodes by interfacial engineering,including surface modification and the addition of electrolyte additives,to stabilize Zn *** purpose is to achieve uniform Zn nucleation and flat Zn deposition by regulating the deposition behavior of Zn ions,which effectively improves the cycling stability of the Zn *** review comprehensively summarizes the reaction mechanisms of interfacial modification for inhibiting the growth of Zn dendrites and the occurrence of side *** addition,the research progress of interfacial engineering strategies for RAZIBs is summarized and ***,prospects and suggestions are provided for the design of highly reversible Zn anodes.

关键词： Interfacial engineering Zn anode Dendrites side reactions Aqueous zinc-ion batteries

Toward stable and highly reversible zinc anodes for aqueous batteries via electrolyte engineering

在线全文

学校读者我要写书评

暂无评论

能源化学:英文版 2023年第8期83卷 209-228,I0007页

作者： Ang Li Jiayi Li Yurong He Maochun Wu Department of Mechanical Engineering The Hong Kong Polytechnic UniversityHong Kong 999077China Schoolof Energy Science and Engineering Harbin Institute of TechnologyHarbin 150001HeilongjiangChina

Featuring low cost, high abundance, low electrochemical potential, and large specific capacity, zinc(Zn)metal holds great potential as an anode material for next-generation rechargeable aqueous ***, the poor reversibility resulting from dendrite formation and side reactions poses a major obstacle for its practical application. Electrolyte, which is regarded as the “blood” of batteries, has a direct impact on reaction kinetics, mass transport, and side reactions and thus plays a key role in determining the electrochemical performance of Zn electrodes. Therefore, considerable efforts have been devoted to modulating the electrolytes to improve the performance of Zn electrodes. Although significant progress has been made, achieving stable and highly reversible Zn electrodes remains a critical challenge. This review aims to provide a systematic summary and discussion on electrolyte strategies for highperformance aqueous Zn batteries. The(electro)-chemical behavior and fundamental challenges of Zn electrodes in aqueous electrolytes are first discussed. Electrolyte modulation strategies developed to address these issues are then classified and elaborated according to the underlying ***, remaining challenges and promising future research directions on aqueous electrolyte engineering are highlighted. This review offers insights into the design of highly efficient electrolytes for new generation of rechargeable Zn batteries.

关键词： Rechargeable aqueous zinc batteries Zinc anode Dendrite growth side reactions Electrolyte engineering

Interface engineering of Zn meal anodes using electrochemically inert Al_(2)O_(3)protective nanocoatings

在线全文

学校读者我要写书评

暂无评论

Nano Research 2022年第8期15卷 7227-7233页

作者： Rui Wang Qiongfei Wu Minjie Wu Jiaxian Zheng Jian Cui Qi Kang Zhengbing Qi JiDong Ma Zhoucheng Wang Hanfeng Liang State Key Laboratory of Physical Chemistry of Solid Surfaces College of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005China Key Laboratory of Functional Materials and Applications of Fujian Province School of Materials Science and EngineeringXiamen University of TechnologyXiamen 361024China Department of Polymer Science and Engineering Shanghai Key Laboratory of Electrical Insulation and Thermal AgeingShanghai Jiao Tong UniversityShanghai 200240China

Aqueous rechargeable Zn-ion batteries are regarded as a promising alternative to lithium-ion batteries owing to their high energy density,low cost,and high ***,their commercialization is severely restricted by the Zn dendrite formation and side ***,we propose that these issues can be minimized by modifying the interfacial properties through introducing electrochemically inert Al_(2)O_(3)nanocoatings on Zn meal anodes(Al_(2)O_(3)@Zn).The Al_(2)O_(3)nanocoatings can effectively suppress both the dendrite growth and side *** a result,the Al_(2)O_(3)@Zn symmetric cells show excellent electrochemical performance with a long lifespan of more than 4,000 h at 1 mA·cm^(−2)and 1 mAh·cm^(−2).Meanwhile,the assembled Al_(2)O_(3)@Zn//V_(2)O_(5)full cells can deliver a high capacity(236.2 mAh·g^(−1))and long lifespan with a capacity retention of 76.11%after 1,000 cycles at 4 A·g^(−1).

关键词： aqueous Zn-ion batteries Zn dendrites side reactions Al2O3 protective nanocoatings interface engineering

An organosulfide-based energetic liquid as the catholyte in highenergy density lithium metal batteries for large-scale grid energy storage

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano Research 2022年第7期15卷 6138-6147页

作者： Zhengkun Xie Zeying Yang Xiaowei An Xiyan Yue Jiajia Wang Shusheng Zhang Weihua Chen Abuliti Abudula Guoqing Guan College of Chemistry Zhengzhou UniversityZhengzhou 450001China Graduate School of Science and Technology Hirosaki UniversityAomori 036-8560Japan Energy Conversion Engineering Laboratory Institute of Regional Innovation(IRI)Hirosaki UniversityAomori 030-0813Japan Department of Chemical Engineering Taiyuan University of TechnologyTaiyuan 030024China

Development of catholytes with long-cycle lifespan,high interfacial stability,and fast electrochemical kinetics is crucial for the comprehensive deployment of high-energy density lithium metal batteries(LMBs)with *** this study,a lithiated 2-mercaptopyridine(2-MP-Li)organosulfide was synthesized and used as the soluble catholyte for the first *** the routine working mode,the LMB using this 2-MP-Li catholyte possessed high capacity retention of 55.4%with a Coulombic efficiency(CE)of near 100%after 2,000 *** a cell system was fully filled with 2-MP-Li catholyte,it yielded a double capacity with 15%improvement in the capacity retention,corresponding to 0.0182%capacity decay per cycle,as well as excellent rate performance even at 6 mA·cm^(−2).These superior achievements resulted from the enhanced interfacial stability of Li anode induced by the salt-type 2-MP-Li molecule and the avoiding of using neutral catholyte as the initial active material,thereby mitigating the side reactions originating from the polysulfide shuttle ***,density functional theory(DFT)calculation and kinetics investigations proved the pseudocapacitive characteristic and faster ion diffusion coefficient with this ***,the fabricated energy storage device showed excellent performance but with low economic cost and easy *** a LMB with an alterable amount of capacity has a high potential to be applied in flow-cell type batteries for large-scale grid energy storage in the future.

关键词： Li anode catholyte side reactions density functional theory(DFT)calculation interfacial stability cycle lifespan

Synergistic“Anchor‑Capture”Enabled by Amino and Carboxyl for Constructing Robust Interface of Zn Anode

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

纳微快报:英文版 2023年第11期15卷 265-280页

作者： Zhen Luo Yufan Xia Shuang Chen Xingxing Wu Ran Zeng Xuan Zhang Hongge Pan Mi Yan Tingting Shi Kai Tao Ben Bin Xu Yinzhu Jiang School of Materials Science and Engineering Zhejiang UniversityHangzhou 310027People’s Republic of China ZJU‑Hangzhou Global Scientific and Technological Innovation Center Zhejiang UniversityHangzhou 311215People’s Republic of China State Key Laboratory of Fluid Power and Mechatronic Systems Key Laboratory of Advanced Manufacturing Technology of Zhejiang ProvinceSchool of Mechanical EngineeringZhejiang UniversityHangzhou 310027People’s Republic of China Institute of Science and Technology for New Energy Xi’an Technological UniversityXi’an 710021People’s Republic of China State Key Laboratory of Baiyunobo Rare Earth Resource Researches and Comprehensive Utilization Baotou Research Institute of Rare EarthsBaotou 014030People’s Republic of China Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials Department of PhysicsJinan UniversityGuangzhou 510632GuangdongPeople’s Republic of China Zhejiang-Israel Joint Laboratory of Self-Assembling Functional Materials Hangzhou 311200People’s Republic of China Mechanical and Construction Engineering Faculty of Engineering and EnvironmentNorthumbria UniversityNewcastle upon Tyne NE18STUK

While the rechargeable aqueous zinc-ion batteries(AZIBs)have been recognized as one of the most viable batteries for scale-up application,the instability on Zn anode–electrolyte interface bottleneck the further development ***,we utilize the amino acid glycine(Gly)as an electrolyte additive to stabilize the Zn anode–electrolyte *** unique interfacial chemistry is facilitated by the synergistic“anchor-capture”effect of polar groups in Gly molecule,manifested by simultaneously coupling the amino to anchor on the surface of Zn anode and the carboxyl to capture Zn^(2+)in the local *** such,this robust anode–electrolyte interface inhibits the disordered migration of Zn^(2+),and effectively suppresses both side reactions and dendrite *** reversibility of Zn anode achieves a significant improvement with an average Coulombic efficiency of 99.22%at 1 mA cm^(−2)and 0.5 mAh cm^(−2)over 500 *** at a high Zn utilization rate(depth of discharge,DODZn)of 68%,a steady cycle life up to 200 h is obtained for ultrathin Zn foils(20μm).The superior rate capability and long-term cycle stability of Zn–MnO_(2)full cells further prove the effectiveness of Gly in stabilizing Zn *** work sheds light on additive designing from the specific roles of polar groups for AZIBs.

关键词： Zn anode–electrolyte interface Polar groups Synergistic“anchor-capture”effect side reactions Dendrite growth

Tailoring the LiNbO_(3)coating of Ni-rich cathode materials for stable and high-performance all-solid-state batteries

在线全文

学校读者我要写书评

暂无评论

Nano Research Energy 2022年第3期1卷 4-10页

作者： Seyedhosein Payandeh Florian Strauss Andrey Mazilkin Aleksandr Kondrakov Torsten Brezesinski Battery and Electrochemistry Laboratory Institute of NanotechnologyKarlsruhe Institute of Technology(KIT)Hermann-von-Helmholtz-Platz 176344 Eggenstein-LeopoldshafenGermany Karlsruhe Nano Micro Facility Karlsruhe Institute of Technology(KIT)Hermann-von-Helmholtz-Platz 176344 Eggenstein-LeopoldshafenGermany BASF SE Carl-Bosch-Str.3867056 LudwigshafenGermany

The research and development of advanced nanocoatings for high-capacity cathode materials is currently a hot topic in the field of solid-state batteries(SSBs).Protective surface coatings prevent direct contact between the cathode material and solid electrolyte,thereby inhibiting detrimental interfacial decomposition *** is particularly important when using lithium thiophosphate superionic solid electrolytes,as these materials exhibit a narrow electrochemical stability window,and therefore,are prone to degradation during battery *** we show that the cycling performance of LiNbO_(3)-coated Ni-rich LiNi_(x)Co_(y)Mn_(z)O_(2)cathode materials is strongly dependent on the sample history and(coating)synthesis *** demonstrate that post-treatment in a pure oxygen atmosphere at 350℃results in the formation of a surface layer with a unique microstructure,consisting of LiNbO_(3)nanoparticles distributed in a carbonate *** tested at 45℃and C/5 rate in pellet-stack SSB full cells with Li_(4)Ti_(5)O_(12)and Li_(6)PS_(5)Cl as anode material and solid electrolyte,respectively,around 80%of the initial specific discharge capacity is retained after 200 cycles(~160 mAh·g^(−1),~1.7 mAh·cm^(−2)).Our results highlight the importance of tailoring the coating chemistry to the electrode material(s)for practical SSB applications.

关键词： solid-state battery layered Ni-rich oxide cathode superionic solid electrolyte protective surface coating side reactions

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

超稳定铁磁界面助力锌金属电池实用化

Science Bulletin 2023年第22期68卷 2750-2759,M0005页

作者：孙闯张文多邱大平童敏曼陈张森孙书会赖超侯仰龙 School of Materials Science and Engineering Beijing Key Laboratory for Magnetoelectric Materials and DevicesBeijing Innovation Center for Engineering Science and Advanced TechnologyPeking UniversityBeijing 100871China School of Chemistry and Materials Science Jiangsu Normal UniversityXuzhou 201116China Institut National de la Recherche Scientifique CenterÉnergie Matériaux TélécommunicationsVarennes QC J3X 1P7Canada

可充电的水系锌金属电池由于其低成本和高安全的特性,已成为大规模储能电池最有潜力的备选之一.然而,锌枝晶的不可控生长以及副反应多的问题(尤其在高容量充放条件下)严重阻碍了其实用化进程.本文提出了铁磁界面和磁场相结合的改性策略... 详细信息

可充电的水系锌金属电池由于其低成本和高安全的特性,已成为大规模储能电池最有潜力的备选之一.然而,锌枝晶的不可控生长以及副反应多的问题(尤其在高容量充放条件下)严重阻碍了其实用化进程.本文提出了铁磁界面和磁场相结合的改性策略,有效地解决了这些问题.引入的高稳定铁磁界面层,不仅能够保证磁场在电极表面长效地调节锌均匀沉积,而且可有效地抑制表面副反应的发生.这些优势使得锌金属负极能够在82%的深度放电条件下稳定循环350 h;匹配五氧化二钒正极材料后,全电池在13.1 mg/cm^(2)的高载量条件下展现出超稳定的循环.该研究对于促进可充电锌金属电池实用化具有重要指导意义.

关键词： Zn metal battery Ferromagnetic interface Magnetic field Dendrite-free side reactions