检索结果-内蒙古大学图书馆

Electrochemical Hydrophobic Tri-layer Interface Rendered Mechanically Graded Solid Electrolyte Interface for Stable Zinc Metal Anode

引用

Angewandte Chemie 2024年第9期136卷

作者： Dr. Chaozheng Liu Dr. Wangwang Xu Dr. Lei Zhang Daotong Zhang Dr. Weina Xu Dr. Xiaobin Liao Weimin Chen Dr. Yizhong Cao Prof. Mei-Chun Li Prof. Changtong Mei Dr. Kangning Zhao Co-Innovation Center of Efficient Processing and Utilization of Forest Resources College of Materials Science and Engineering Nanjing Forestry University Nanjing 210000 China Mechanical & Industrial Engineering Department Louisiana State University Baton Rouge LA-70803 USA State Key Laboratory of Advanced Technology for Materials Synthesis and Processing International School of Materials Science and Engineering Wuhan University of Technology Wuhan 430070 China School of Materials Science and Engineering Dongguan University of Technology Guangdong 523808 China College of Chemistry and Materials Engineering Zhejiang A&F University Hangzhou 311300 China Laboratory of Advanced Separations (LAS) École Polytechnique Fédérale de Lausanne (EPFL) Sion 1950 Lausanne Switzerland

The aqueous zinc-ion battery is promising as grid scale energy storage device, but hindered by the instable electrode/electrolyte interface. Herein, we report the lean-water ionic liquid electrolyte for aqueous zinc metal batteries. The lean-water ionic liquid electrolyte creates the hydrophobic tri-layer interface assembled by first two layers of hydrophobic OTF − and EMIM + and third layer of loosely attached water, beyond the classical Gouy–Chapman–Stern theory based electrochemical double layer. By taking advantage of the hydrophobic tri-layer interface, the lean-water ionic liquid electrolyte enables a wide electrochemical working window (2.93 V) with relatively high zinc ion conductivity (17.3 mS/cm). Furthermore, the anion crowding interface facilitates the OTF − decomposition chemistry to create the mechanically graded solid electrolyte interface layer to simultaneously suppress the dendrite formation and maintain the mechanical stability. In this way, the lean-water based ionic liquid electrolyte realizes the ultralong cyclability of over 10000 cycles at 20 A/g and at practical condition of N/P ratio of 1.5, the cumulated areal capacity reach 1.8 Ah/cm 2 , which outperforms the state-of-the-art zinc metal battery performance. Our work highlights the importance of the stable electrode/electrolyte interface stability, which would be practical for building high energy grid scale zinc-ion battery.

关键词： Electrochemical Tri-Layer Interface Hydrophobic Ionic Liquid Mechanically Graded Solid Electrolyte Interface Zinc Battery

来源：评论

学校读者我要写书评

暂无评论

(Bi_(0.51)Na_(0.47))TiO_(3) based lead free ceramics with high energy density and efficiency

引用

Journal of Materiomics 2019年第3期5卷 385-393页

作者： Yu Huang Fei Li Hua Hao Fangquan Xia Hanxing Liu Shujun Zhang State Key Lab Silicate Materials for Architecture Center for Smart Materials and Device IntegrationSchool of Materials Science and EngineeringWuhan University of TechnologyWuhan430070China Electronic Materials Research Laboratory Key Lab Ministry of Education and International Center for Dielectric ResearchSchool of Electronic and Information EngineeringXi'an Jiaotong UniversityXi'an710049China School of Chemistry and Chemical Engineering University of JinanJinan250022China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Center for Smart Materials and Device IntegrationInternational School of Materials Science and EngineeringWuhan University of TechnologyWuhan430070China Institute for Superconducting and Electronic Materials Australian Institute of Innovative MaterialsUniversity of WollongongNSW2500Australia

Dielectric ceramics with high energy storage density and energy efficiency play an important role in high power energy storage *** this work,lead free relaxor ferroelectric ceramics in (1-x) Bi_(0.51)Na_(0.47)TiO_(3-x)Ba(Zr_(0.3)Ti_(0.7))O_(3)(BNT-BZT100x:x=0.20,0.30,0.40 and 0.50)system are fabricated by conventional solid-state sintering *** BNT-BZT100x ceramics are sintered dense with minimal pores,exhibiting pseudocubic symmetry and strong relaxor characteristic.A high energy storage density of 3.1 J/cm^(3) and high energy efficiency of 91% are simultaneously achieved in BNT-BZT40 ceramic with 0.1mm in thickness,at the applied electric field of 280 kV/*** temperature stability of the energy density is studied over temperature range of 20-160℃ ,showing minimal variation below 1.5%,together with the excellent cycling reliability(the variations of both energy density and efficiency are below 3% up to 106 cycles),making BNT-BZT40 ceramic promising candidate for high-temperature dielectric and energy storage applications.

关键词： Energy storage Lead free ceramic Relaxor characteristic

来源：评论

学校读者我要写书评

暂无评论

A Blinking Mesoporous TiO2−x Composed of Nanosized Anatase with Unusually Long-Lived Trapped Charge Carriers

引用

Angewandte Chemie 2020年第35期132卷 15110-15117页

作者： Zhang T. Low J. Yu J. Tyryshkin A.M. Mikmeková E. Asefa T. Department of Chemical and Biochemical Engineering Rutgers The State University of New Jersey 98 Brett Road Piscataway NJ 08854 United States State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology 122 Luoshi Road Wuhan Hubei 430070 China Department of Chemistry and Chemical Biology Rutgers The State University of New Jersey 610 Taylor Road Piscataway NJ 08854 United States Institute of Scientific Instruments of the ASCR Czech Academy of Sciences Královopolská 147 Brno 612 64 Czech Republic

A mesoporous TiO2−x material comprised of small, crystalline, vacancy-rich anatase nanoparticles (NPs) shows unique optical, thermal, and electronic properties. It is synthesized using polymer-derived mesoporous carbon (PDMC) as a template. The PDMC pores serve as physical barriers during the condensation and pyrolysis of a titania precursor, preventing the titania NPs from growing beyond 10 nm in size. Unlike most titania nanomaterials, during pyrolysis the NPs undergo no transition from the anatase to rutile phase and they become catalytically active reduced TiO2−x. When exposed to a slow electron beam, the NPs exhibit a charge/discharge behavior, lighting up and fading away for an average period of 15 s for an extended period of time. The NPs also show a 50 nm red-shift in their UV/Vis absorption and long-lived charge carriers (electrons and holes) at room temperature in the dark, even long after UV irradiation. The NPs as photocatalysts show a good activity for CO2 reduction. © 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim

关键词： blinking nanoparticles carbon dioxide reduction long-lived charge carriers photocatalytic energy conversions titanium dioxide

来源：评论

学校读者我要写书评

暂无评论

Scalable microfabrication of three-dimensional porous interconnected graphene scaffolds with carbon spheres for high-performance all carbon-based micro-supercapacitors

引用

Journal of Materiomics 2019年第2期5卷 303-312页

作者： Yiming Chen Minghao Guo Liang He Wei Yang Lin Xu Jiashen Meng Xiaocong Tian Xinyu Ma Qiang Yu Kaichun Yang Xufeng Hong Liqiang Mai State Key Laboratory of Advanced Technology for Materials Synthesis and Processing International School of Materials Science and EngineeringWuhan University of TechnologyWuhan430070China Department of Materials Science and NanoEngineering Rice UniversityHoustonTX77005United States Faculty of Materials Science&Chemistry China University of GeosciencesWuhan430074China Department of Civil Engineering Rice UniversityHoustonTX77005United States

As one of the most important micro energy storage devices(MESDs),graphene-based micro-supercapacitors(G-MSCs)possess the advantages of excellent flexibility,long cycle life,affordability and high *** most cases,constructing three-dimensional(3D)graphene networks is widely utilized to promote the permeation of electrolyte and enhance the utilization of active *** this work,conventional freeze-drying process is utilized in the fabrication of G-MSCs to constitute 3D interconnected networks micro-electrodes,and further by regulating the composition of inks,carbon spheres(CSs)at different mass loadings are introduced into the graphene scaffolds to further increase the active sites of the *** fabricated all carbon-based MSC with the optimal mass loading of CSs(0.406 mg cm^(-2))exhibits a high specific areal capacitance of 17.01mF cm^(-2)at the scan rate of 10mV s^(-1)and a capacitance retention of 93.14%after 10000 cycles at the scan rate of 500 mV s^(-1).The proposed microfabrication process is facile and fully compatible with modern microtechnologies and will be highly suitable for large-scale production and integration.

关键词： Three-dimensional Injecting Freeze-drying Mass loading Supercapacitor

来源：评论

学校读者我要写书评

暂无评论

Sulfur-deficient MoS2 encapsulated in hollow mesoporous carbon spheres as a functional polysulfide mediator

Sulfur-deficient MoS2 encapsulated in hollow mesoporous carb...

引用

中国化学会第二十次全国电化学大会

作者： Hong-En Wang State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology

Lithium-sulfur batteries have the advantages of high theoretical energy density(2600 Wh kg-1), low-cost and environmental friendliness, which is one of the most promising secondary battery systems. However, the practical application of Li-S batteries has still been restricted by the low Coulombic efficiency and rapid capacity decay deriving from the low conductivity of sulfur cathode, large volume expansion（～80%） during discharging, and serious lithium corrosion/dendrite of anode, particularly, high dissolution of the discharge intermediate polysulfides（LiPSs） in electrolyte and shuttle effect between cathode and anode.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Self-assembled Nanostructures and Derived Nanocarbon materials for Electrochemical Energy Storage

Self-assembled Nanostructures and Derived Nanocarbon Materia...

引用

中国化学会第二十次全国电化学大会

作者： Qi Li Liqiang Mai State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology

Self-assembly of functional units represents an important synthetic approach in the rational design of nanomaterials with precisely-controlled chemical compositions, nanostructures and desired properties, and hence finds vast applications in areas including but not limited to biomedical engineering, separation, energy storage and conversion. The functional units which can be used in self-assembly range from small molecules, metal ions, clusters, nanoparticles to large polymeric molecules. Finely tuning the functional groups of assembly units and the bonding/interactions between the units can generate versatile materials with unique structures and properties, thus leading to the desired performances for various applications. Notably, under varied external conditions, the chemical bonding, interactions between the assembly units and the structures can also be varied, which further endows these materials with responsive properties for applications in multidisciplinary areas. In recent years, I have studied a series of self-assembled nanostructured materials which are based on metal-organic coordinative compounds constructed between metal ions and organic ligands. Nanostructuring of these materials endow them with greatly enhanced properties in electrochemical energy storage. Moreover, in combination with controlled pyrolysis and understanding of the structure-property relationship, the rational design and controlled synthesis of nanocarbon composite electrode materials towards high-performance electrochemical energy storage and conversion becomes feasible. In this talk, I will present some of our recent work on the rational design of self-assembled metal-organic nanostructures and their derived nanocarbon materials for electrochemical energy storage.

关键词：

来源：评论

学校读者我要写书评

暂无评论

One Dimensional Nanomaterials for Emerging Energy Storage

One Dimensional Nanomaterials for Emerging Energy Storage

引用

中国化学会第十届全国无机化学学术会议

作者： Liqiang (Mai) State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology

One-dimensional nanomaterials can offer large surface area, facile strain relaxation upon cycling and efficient electron transport pathway to achieve high electrochemical performance. Hence, nanowires have attracted increasing interest in energy related fields. We designed the single nanowire electrochemical device for in situ probing the direct relationship between electrical transport, structure, and electrochemical properties of the single nanowire electrode to understand intrinsic reason of capacity fading. The results show that during the electrochemical reaction, conductivity of the nanowire electrode decreased, which limits the cycle life of the devices. We have developed a facile and high-yield strategy for the oriented formation of CNTs from metal-organic frameworks（MOFs）. The appropriate graphitic N doping and the confined metal nanoparticles in CNTs both increase the densities of states near the Fermi level and reduce the work function, hence efficiently enhancing its oxygen reduction activity. In addition, we demonstrated the critical role of structural HO. The results suggest that the HO-solvated Zn possesses largely reduced effective charge and thus reduced electrostatic interactions with the VO framework, effectively promoting its diffusion. We also identified the exciting electrochemical properties（including high electric conductivity, small volume change and self-preserving effect） and superior sodium storage performance of alkaline earth metal vanadates through preparing CaVO nanowires. Furthermore, a novel assembled nanoarchitecture was also presented, which consists of VO nanoparticles embedded in amorphous carbon nanotubes that are then coassembled within a reduced graphene oxide network. The naturally integrated advantages of each subunit exhibit highly stable and ultrafast sodium-ion storage. Our work presented here can inspire new thought in constructing novel one-dimensional structures and accelerate the development of energy storage applica

关键词： One-dimensional nanomaterials energy storage

来源：评论

学校读者我要写书评

暂无评论

Metal-organic-gel method derived (TiZrNbTa)C high-entropy nanopowders and ceramics with high performance

引用

Ceramics International 2025年

作者： Didi Cao Meiling Yu Qizheng Dong Lin Zhao Peng Wang Hongkang Wei Zhiyang Lv Xunyan Tan Jian Gu Yinsheng Li Zhipeng Xie Chang-an Wang Jiangxi Key Laboratory of Advanced Ceramic Materials School of Materials Science and Engineering Jingdezhen Ceramic University Jingdezhen 333403 China College of Materials Science and Engineering Nanjing Tech University Nanjing 211816 China Zhejiang Key Laboratory of Data-Driven High-Safety Energy Materials and Applications Ningbo Key Laboratory of Special Energy Materials and Chemistry Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo 315201 China State Key Lab of New Ceramics and Fine Processing School of Materials Science and Engineering Tsinghua University Beijing 100084 China

Multi-component high-entropy carbide ceramics have emerged as a promising class of materials due to their exceptional mechanical performance, thermal stability, and chemical corrosion resistance. In this study, we employed pyromellitic acid as the carbon source and developed a metal-organic-gel method to synthesize (TiZrNbTa)C high-entropy precursors. Through carbothermal reduction at relatively low temperature of 1500°C, homogeneous single-phase face-centered cubic solid solution were obtained successfully. Subsequently, the carbide ceramics were fabricated using SPS. Characterization results demonstrate that the synthesized powders exhibit quasi-spherical morphology with uniform particle size distribution and average diameter of 57 nm. The SPS-sintered (TiZrNbTa)C high-entropy ceramics demonstrate remarkable performance, achieving relative density as high as 99.8% with uniform microstructure and particle size of 0.44 ± 0.1 μm. The material exhibited outstanding mechanical performance, with Vickers hardness and fracture toughness reaching 21.82 ± 1.5 GPa and 4.565 ± 0.5 MPa·m 1/2 , respectively.

关键词： (TiZrNbTa)C high-entropy ceramics Carbothermal reduction Mechanical performance Metal-organic-gel Nanopowders Precursors

来源：评论

学校读者我要写书评

暂无评论

Phase Compositions and Mechanical Properties of Chinese Blue-and-white Porcelain

Phase Compositions and Mechanical Properties of Chinese Blue...

引用

作者： Gangqin Shao Xiaobin Zhong Xinyi Feng Yong Zhang Can Zhu Zhenchang Zhong Jun Wang Qi Liu Hongbin Li Zhaobiao Qiu Youyan Zhong State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology

Chinese blue-and-white porcelain has engendered a unique appeal and gained a worldwide popularity throughout history, with its unmatched translucency of the body, the shine of the glaze, the permanency of the variegated blue tints, the fineness of decorations and the mysteries behind the manufacturing. Mechanical properties are vital for the manufacturing, transportation and usage of this kind of stunner. In this work, the mechanical properties of Chinese blue-and-white porcelain with Hakka style and Dabu geographical indication were optimized, based on the distinct characteristics of local resources.

关键词： CSW Phase Compositions and Mechanical Properties of Chinese Blue-and-white Porcelain

来源：评论

学校读者我要写书评

暂无评论

Flexible quasi-solid-state dual-ion asymmetric supercapacitor based on Ni（OH）2 and Nb2O5 nanosheet arrays

引用

Green Energy & Environment 2019年第4期4卷 382-390页

作者： Xiaolan Deng Yuqi Jiang Zengxi Wei Minglei Mao Ramyakrishna Pothu Hongxia Wang Caiyun Wang Jinping Liu Jianmin Ma School of Physics and Electronics Hunan UniversityChangsha410082China School of Chemistry Chemical Engineering and Life Science State Key Laboratory of Advanced Technology for Materials Synthesis and ProcessingWuhan University of TechnologyWuhan430070China School of Chemistry Physics and Mechanical EngineeringQueensland University of TechnologyBrisbaneQLD4001Australia ARC Centre of Excellence for Electromaterials Science Intelligent Polymer Research InstituteAIIMInnovation CampusUniversity of WollongongNorth WollongongNSWAustralia Key Laboratory of Materials Processing and Mold(Zhengzhou University) Ministry of EducationZhengzhou UniversityZhengzhou450002China

Increasing the energy density, power density as well as widening the operation voltage are essential to electrochemical capacitors to meet the practical energy demands. Herein, a novel flexible quasi-solid-state dual-ion asymmetric supercapacitor(ASC) with Ni(OH)2 and Nb2O5 nanosheets directly grown on stainless steel mesh is developed. In the dual-ion ASC, Nb2O5 negative and Ni(OH)2 positive electrodes react with Li+ and OH- respectively in alkaline gel electrolyte to store energy, which is quite different from conventional alkali metal ion SCs and alkaline SCs. The as-assembled flexible device has an extended working voltage of 1.7 V and delivers a capacity of 5.37 mAh cm-2, a maximum energy density and power density of 0.52 mWh cm-3 and 170 mW cm-3 , respectively. The device maintains around 60% capacity retention after long cycling up to 1000 cycles. Moreover, our device can light up a LED light efficiently upon fast charging. The proposed quasi-solid-state dual-ion ASC has potential applications in future portable electronics and flexible energy storage devices.

关键词： Nickel hydroxide Niobium pentoxide Nanoarrays Flexible supercapacitor Dual ion capacitor

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：