检索结果-内蒙古大学图书馆

Built-In Electric Field Effects Tailoring Solvation Sheath and Desolvation Processes of Solvated Zn2+ Toward Stable Aqueous Rocking-Chair Zinc-Ion Batteries

引用

Carbon Energy 2025年第5期7卷 5-24页

作者： Peng Cai Xin He Kangli Wang Zidong Zhang Qingyuan Wang Yumeng Liu Haomiao Li Min Zhou Wei Wang Kai Jiang State Key Laboratory of Advanced Electromagnetic Technology School of Electrical and Electronic Engineering Huazhong University of Science and Technology State Key Laboratory of Materials Processing and Die & Mould Technology School of Materials Science and EngineeringHuazhong University of Science and Technology

Currently, although some progress has been made in infancy-stage rocking-chair aqueous zinc-ion batteries（AZIBs）, more discussions have focused only on the different electrochemical performances displayed by different material types rather than the intrinsic ion transport migration electrochemistry. Herein, we for the first time delve into the mechanism of tailoring the solvation sheath and desolvation processes at the electrode/electrolyte interfaces to enhance the structural stabilities in the deep discharge states. In this work, the TiO2front interfaces are induced on electrochemically active but unstable TiSe2host materials to construct unique TiO2/TiSe2–C heterointerfaces. According to X-ray absorption near edge structure（XANES）,differential electrochemical mass spectrometry（DEMS）, and electrochemical quartz crystal microbalance（EQCM）, the intercalated species are transformed from [Zn（H2O）6]2+to [Zn（H2O）2]2+due to the built-in electric fields（BEFs） effects, further accelerating the ion transfer kinetics. Furthermore, owing to the absence of high-energy desolvation solvents released from desolvation processes, hydrogen evolution reaction（HER） energy barriers, Ti–Se bond strength, and structural stabilities are significantly improved, and the initial CE and HER overpotentials of the TiO2/TiSe2–C heterointerfaces increased from 13.76%to 84.7%, and from 1.04 to 1.30 V, respectively, and the H2precipitation current density even at-1.3 V decreased by 73.2%. This work provides valuable insights into the complex interface electrochemical mechanism of tailoring the solvation sheath and desolvation processes toward rocking-chair zinc-ion batteries.

关键词： desolvation heterointerfaces hydrogen evolution reaction rocking-chair zinc-ion batteries solvation sheath

来源：评论

学校读者我要写书评

暂无评论

Effect of Active–Passive Deformation on the Thrust by the Pectoral Fins of Bionic Manta Robot

引用

Journal of Bionic engineering 2024年第2期21卷 718-728页

作者： Yang Lu Shaomin Meng Cheng Xing Yiwei Hao Yonghui Cao Guang Pan Yong Cao School of Marine Science and Technology Northwestern Polytechnical UniversityXi’an710072China Unmanned Vehicle Innovation Center Ningbo Institute of NPUNingbo315103China State Key Lab of Fluid Power and Mechatronic Systems School of Mechanical EngineeringZhejiang UniversityHangzhou310027China Zhejiang Key Laboratory of Advanced Manufacturing Technology School of Mechanical EngineeringZhejiang UniversityHangzhou310027China

Bionic manta underwater vehicles will play an essential role in future oceans and can perform tasks,such as long-duration reconnaissance and exploration,due to their efficient *** manta wings’deformation is evident during the swimming *** improve the propulsion performance of the unmanned submersible,the study of the deformation into the bionic pectoral fin is *** this research,we designed and fabricated a flexible bionic pectoral fin,which is based on the Fin Ray®effect with active and passive deformation(APD)*** APD fin was actively controlled by two servo motors and could be passively deformed to variable *** APD fin was moved at 0.5 Hz beat frequency,and the propulsive performance was experimentally verified of the bionic pectoral fins equipped with different extents of *** results showed that the pectoral fin with active–passive deformed capabilities could achieve similar natural biological deformation in the wingspan *** average thrust(T)under the optimal wingspan deformation is 61.5%higher than the traditional passive deformed pectoral *** obtained results shed light on the design and optimization of the bionic pectoral fins to improve the propulsive performance of unmanned underwater vehicles(UUV).

关键词： Manta ray Bionic pectoral fin Fin Ray®effect Active-passive deformation(APD)

来源：评论

学校读者我要写书评

暂无评论

Al-F co-doping towards enhanced electrolyte-electrodes interface properties for halide and sulfide solid electrolytes

引用

Chinese Chemical Letters 2025年第1期36卷 610-617页

作者： Han Yan Jingming Yao Zhangran Ye Qiaoquan Lin Ziqi Zhang Shulin Li Dawei Song Zhenyu Wang Chuang Yu Long Zhang College of Physics and Energy Fujian Normal UniversityFuzhou 350117China Clean Nano Energy Center State Key Laboratory of Metastable Materials Science and TechnologyYanshan UniversityQinhuangdao 066004China Tianjin Key Laboratory for Photoelectric Materials and Devices School of Materials Science and EngineeringTianjin University of TechnologyTianjin 300384China Guilin Electrical Equipment Scientific Research Institute Co. Ltd.Guilin 541004China State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430000China

All-solid-state Li batteries(ASSLBs)using solid electrolytes(SEs)have gained significant attention in recent years considering the safety issue and their high energy *** these advantages,the commercialization of ASSLBs still faces challenges regarding the electrolyte/electrodes interfaces and growth of Li *** doping is an effective and direct method to enhance the performance of ***,we report an Al-F co-doping strategy to improve the overall properties including ion conductivity,high voltage stability,and cathode and anode ***,the Al-F co-doping enables the formation of a thin Li-Al alloy layer and fluoride interphases,thereby constructing a relatively stable interface and promoting uniform Li *** similar merits of Al-F co-doping are also revealed in the Li-argyrodite *** assembled with these optimized electrolytes gain good electrochemical performance,demonstrating the universality of Al-F co-doping towards advanced SEs.

关键词： Solid electrolytes Li halides Li_(2)ZrCl_(6) Li argyrodites Fluorine doping

来源：评论

学校读者我要写书评

暂无评论

Characteristics Evaluation of SiC MOSFET in DC Circuit Breaker

Characteristics Evaluation of SiC MOSFET in DC Circuit Break...

引用

2024 CPSS and IEEE International Symposium on Energy Storage and Conversion, CPSS and ISESC 2024

作者： Guo, Zhongqi Liang, Lin Wan, Xiangyu Qing, Zhengheng Zhang, Ziyang Yan, Xiaoxue School of Electrical and Electronic Engineering Engineering Research Center of Power Safety and Efficiency Ministry of Education of China Huazhong University of Science and Technology State Key Laboratory of Advanced Electromagnetic Technology Wuhan China

ISBN: (纸本)9798350380514

In order to evaluate the characteristics of SiC MOSFET under the mission profile of DC Circuit Breaker (DCCB), a complete DCCB test platform considering the RCD transfer loop and the MOV absorption loop is set up. Based on this platform, single and repetitive short-circuit interrupting experiments are carried out. Through these tests, the characteristics evaluation of 1200V/66A SiC MOSFET under DCCB is tested and analyzed. The aging test results are given. DCCB has its unique mission profile (interruption of large short-circuit current, fast current transfer, etc.), and the characteristics evaluation of SiC MOSFET in DCCB is necessary. For the single tests, the maximum interrupted current is 2.02 times the rated current. For the repetitive tests, the number of interruptions exceeds 2000 times and the interruption boundary is 2004 times under 1.85 times rated current. The failure causes of the devices in two cases are drain thermal failure and gate-source short circuit respectively. After 2000 experiments, the interruption time of DCCB increased significantly, and the Idss, Vgs(th), and Rds(on) of the device increased by about 53.36%, 4.29%, and 16.94% respectively. © 2024 IEEE.

关键词： MOSFET devices

来源：评论

学校读者我要写书评

暂无评论

Model and Control of Integrated Six-switch Buck-Boost and CLLLC Cascaded Converter

Model and Control of Integrated Six-switch Buck-Boost and CL...

引用

2023 IEEE PELS Students and Young Professionals Symposium, SYPS 2023

作者： He, Meng Zhang, Yu Qu, Erya Chen, Yangfan Huazhong University of Science and Technology State Key Laboratory of Advanced Electromagnetic China Eu Institute for Clean and Renewable Energy Wuhan China Huazhong University of Science and Technology State Key Laboratory of Advanced Electromagnetic School of Electrical and Electronic Engineering Wuhan China

ISBN: (纸本)9798350307832

An integrated six-switch Buck-Boost and CLLLC cascaded converter (ISSBB-CLLLC) is proposed in this paper, which is suitable for high-voltage applications. To realize the flying capacitor voltage balance, current ripple optimization and output voltage regulation, a model of the converter is established, and a control strategy is proposed. Firstly, the balance of flying capacitor voltage in six-switch Buck-Boost circuit is analyzed, and a voltage balance control method (FCV-BCM) is proposed, which is implemented by alternatively using the redundant switching states. Next, a model of the ISSBB-CLLLC is derived and a dual closed-loop control based on phase shift control (DLC-PSC) is proposed to regulate the output voltage, which can further optimize the current ripple of inductor in six-switch Buck-Boost circuit as well. Finally, the experimental results are given to verify the effectiveness of the control strategies. © 2023 IEEE.

关键词： Buck-Boost converter

来源：评论

学校读者我要写书评

暂无评论

Investigation of gyrotron-based collective Thomson scattering for fast ion diagnostics in a compact high-field tokamak

引用

Plasma Science and technology 2023年第6期25卷 14-22页

作者：徐登峰黄梅陈曦璇张峰夏冬辉王之江潘垣 International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics State Key Laboratory of Advanced Electromagnetic Engineering and TechnologySchool of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074People's Republic of China Southwestern Institute of Physics Chengdu 610041People's Republic of China

As a promising method for fast ion diagnostics,collective Thomson scattering(CTS)can measure the one-dimensional velocity distribution of fast ions with high spatial and temporal *** feasibility of diagnosing fast ions in a compact high-field tokamak by CTS was studied in this work,and the results showed that a wide range of probing frequencies could be applied.A high-frequency case and a low-frequency case were mainly considered for fast ion diagnostics in a compact high-field *** use of a high probing frequency could effectively avoid the refraction effect of the beams,while the application of a low probing frequency allows greater flexibility in the selection of scattering angle which may help to improve the spatial *** on typical plasma conditions(B_(0)=12.2 T,n_(e0)=4.3×10^(20)m^(-3),T_(e0)=22.2 keV,T_(i0)=19.8 keV)for a compact high-field tokamak,a220 GHz CTS diagnostic that utilizes a small scattering angle ofθ=30°and a 160 GHz CTS diagnostic that utilizes an orthogonal geometry were *** study showed that the high-frequency case could operate in a wider range of plasma conditions and provide more information on fast ions while the low-frequency case could achieve higher spatial resolution of the poloidal direction.

关键词： fast ion collective Thomson scattering gyrotron

来源：评论

学校读者我要写书评

暂无评论

Mesoporous polymers:soft-template self-assembly synthesis and applications

引用

Science China Chemistry 2024年第5期67卷 1442-1464页

作者： Facai Wei Tingting Zhang Jianwei Fu Chengbin Jing Jiangong Cheng Shaohua Liu State Key Laboratory of Precision Spectroscopy Engineering Research Center of Nanophotonics&Advanced Instrument(Ministry of Education)School of Physics and Electronic ScienceEast China Normal UniversityShanghai 200241China School of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450052China State Key Lab of Transducer Technology Shanghai Institute of Microsystem and Information TechnologyChinese Academy of SciencesShanghai 200050China

Mesoporous polymers combine the advantages of polymer materials(abundant polar functional groups,lightweight,flexibility,and processability)and mesoporous structures(high specific surface area,adjustable pore structure,and large pore volume);hence,they have great application potential in sensing,adsorption,catalysis,energy storage,biomedicine,***,developing advanced synthetic strategies for mesoporous polymers and investigating their intrinsic applications have become hot research ***-template-based self-assembly is regarded as a promising approach for synthesizing mesoporous *** work reviews recent progress in the synthetic strategy for producing various mesoporous polymers using soft-template selfassembly,focusing on the synthesis of conductive polymers,phenol-based polymers,and resin-based polymers and their potential ***,perspectives on future applications of mesoporous polymers,along with a few challenges that need to be resolved,are also discussed in this review.

关键词： mesoporous polymer porous material self-assembly soft templates interface synthesis

来源：评论

学校读者我要写书评

暂无评论

Emerging hierarchical mesoporous materials of covalent organic frameworks

引用

Science China Chemistry 2024年第9期67卷 2796-2802页

作者： Lingyan Huang Wenda Li Hongyi Zhang Shanzhe Ke Hao Chen Jianwei Fu Chengbin Jing Jiangong Cheng Shaohua Liu State Key Laboratory of Precision Spectroscopy/Engineering Research Center of Nanophotonics&Advanced Instrument(Ministry of Education) School of Physics and Electronic ScienceEast China Normal UniversityShanghai 200241China School of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450052China State Key Lab of Transducer Technology Shanghai Institute of Microsystem and Information TechnologyChinese Academy of SciencesShanghai 200050China

Benefiting from abundant exposed active sites,minimized diffusion resistance of guest molecules,facilitated mass transfer process and enhanced storage capacity,covalent organic frameworks(COFs)have gained widespread scientific attention[1–4].Further construction of mesopores regarding pore engineering(pore size,pore geometry,pore volume,and framework compositions)in COFs can improve mass transport,accessibility as well as size-selectivity of the special guest moieties,thus exhibiting potential in catalysis,energy storage and separation and so on[5,6].

关键词： gained catalysis separation

来源：评论

学校读者我要写书评

暂无评论

Modulation Strategy for Cascaded DC/DC Converter through Integration of CLLLC and Six-Switch Buck-Boost Topology

Modulation Strategy for Cascaded DC/DC Converter through Int...

引用

2023 IEEE PELS Students and Young Professionals Symposium, SYPS 2023

作者： Qu, Erya Zhang, Yu He, Meng Chen, Yangfan State Key Laboratory of Advanced Electromagnetic China-EU Institute for Clean and Renewable Energy Huazhong University of Science and Technology WuHan China Huazhong University of Science and Technology State Key Laboratory of Advanced Electromagnetic School of Electrical and Electronic Engineering WuHan China

ISBN: (纸本)9798350307832

This paper proposes a cascaded DC/DC converter which integrates the six-switch Buck-Boost circuit with CLLLC converter by sharing a bridge arm and shows advantages of bidirectional energy flow, high voltage rating, high efficiency and wide input voltage range. First, an alternative PWM strategy (APWM) for the six-switch Buck-Boost circuit is proposed to balance its flying capacitor voltage. Next, a control method for both current ripple optimization and power control (CRO-PC) is proposed which can reduce 73.5% of current ripple. Finally, a 2 kW/ 20 kHz prototype was built to demonstrate the performance of the proposed method. © 2023 IEEE.

关键词： Buck-Boost converter

来源：评论

学校读者我要写书评

暂无评论

Plasma-activated ethanol solution and it's decontamination effect

引用

High Voltage 2023年第4期8卷 833-840页

作者： YiQian Li JiaLin Liu Feng Zhao Ke Song LanLan Nie DaWei Liu XinPei Lu State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhanHubeiChina Department of Thoracic Surgery Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina Center of Stomatology Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina

Ethanol solution as a disinfectant has been widely used in various ***,it has a significant bactericidal capability only when the volume fraction of ethanol is around 70%-75%.For such high concentration of ethanol solution,it has an irritating *** it is used for applications such as wound disinfection,it causes a stinging *** concentrations of ethanol solution are less irritating,but it is also less effective at killing *** this study,an idea for producing a green,efficient and less irritating disinfectant is *** is based on a plasma-activated low-concentration ethanol solution(PAES).It is found that the plasma-activated 10% volume fraction of ethanol solution can kill more than seven orders of magnitude of Escherichia coli,while the untreated 10% volume fraction of ethanol solution has no bactericidal ***,the PAES's activity remains unchanged after being stored at -20℃ for three *** investigation shows that new compositions including peracetic acid,peroxynitrite,hydrogen peroxide and acetic acid are detected in the PAES,which together are playing the main role of the excellent and prolonged bactericidal effect.

关键词： effect. ethanol unchanged

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：