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Electrospinning synthesis of novel lithium-rich 0.4Li2MnO3.0.6LiNi1/3CO1/3Mn1/3O2 nanotube and its electrochemical performance as cathode of lithium-ion battery

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Advances in Manufacturing 2016年第1期4卷 79-88页

作者： Lei-Lei Cui Xiao-Wei Miao yu-feng song Wen-Ying Fang Hong-Bin Zhao Jian-Hui Fang Department of Chemistry Shanghai UniversityShanghai 200444 People's Republic of China Shanghai Key Laboratory of Mechanics in EnergyEngineering Shanghai University Shanghai 200072People's Republic of China Department of Chemical Engineering University ofWaterloo Waterloo N2L3G1 Canada

In this study, a lithium-rich 0.4Li2MnO3.0.6LiNi1/3Co1/3Mn1/3O2 nanotube layered cathode synthesized by novel electrospinning is reported, and the effects of temperature on the electrochemical performance and morphologies are investigated. The crystal structure is characterized by X-ray diffraction patterns, and refined by two sets of diffraction data （R-3m and C2/m）. Refined crystal structure is 0.4Li2MnO3.0.6LiNi1/3COl/3Mn13O2 compos- ite. The inductively coupled plasma optical emission spec- trometer and thermogravimetric and differential scanning calorimetry analysis measurement supply reference to opti- mize the calcination temperature and heat-treatment time. The morphology is characterized by scanning and high- resolution transmission electron microscope techniques, and the micro-nanostructured hollow tubes of Li-rich 0.4Li2MnO3-0.6LiNil/3COl/3Mn1/3O2 composite with outer diameter of 200-400 nm and the wall thickness of 50-80 nm are synthesized successfully. The electrochemical evaluation shows that 0.4Li2MnO3.0.6LiNi1/3Cov3Mn1/3O2 sintered at 800 ℃ for 8 h delivers the highest capacity of the first dis- charge capacity of 267.7 mAh/g between 2.5 V and 4.8 V at 0.1C and remains 183.3 mAh/g after 50 cycles. The electro- spinning method with heat-treatment to get micro-nanos- tructured lithium-rich cathode shows promising application inlithium-ion batteries with stable electrochemical performance and higher C-rate performance for its shorter Li ions transfer channels and stable designed structure.

关键词： Electrospinning Cathode - Nanotube Lithium-rich Lithium battery

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Effect of order–disorder transition on thermodynamic and electronic properties of σ and χ phases in W–Re alloy: the first-principles calculation

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Tungsten 2025年第1期7卷 195-213页

作者： Zhi-Peng Zhu Dian Jia William Yi Wang Jun-Lei Yin Xing-yu Gao Shu-feng Yang Hai-feng song Jin-Shan Li State Key Laboratory of Solidification Processing Northwestern Polytechnical University Laboratory of Computational Physics Institute of Applied Physics and Computational Mathematics School of Metallurgical and Ecological Engineering University of Science and Technology Beijing

The Tungsten-Rhenium(W-Re) alloys,celebrated for their high melting point,strength at elevated temperatures,electrical resistivity,and radiation resistance,have been widely utilized in high-temperature components,aerospace,electronics,and nuclear *** constituents of the topologically close-packed(TCP) phases,the sigma phase(σ) and chi phase(χ) formed within W-Re alloys wield considerable influence on the mechanical properties and the stability of the *** calculations were utilized in the present work to explore the structural,thermodynamic,and electronic properties of both ordered and disordered configurations within the σ and χ phases,culminating in a systematic elucidation of the higher phase stability exhibited by the ordered *** is found that the bulk modulus of these two phases is directly proportional to the concentration of Re in the alloy,while the equilibrium volume is inversely *** thermodynamic parameters of the σ and χ phases are calculated via the mean-field potential *** similar trends observed in the isobaric heat capacity,enthalpy increment,and entropy change curves for these two phases suggest they possess comparable thermodynamic *** is noteworthy that the contribution of ionic vibrations predominantly affects the isobaric heat capacity,while the contribution of thermal electronic excitations increases linearly with *** the structure and thermodynamic properties of TCP phases in W-Re alloys at low temperatures has profound significance for optimizing material performance,microstructures features,establishing theoretical foundations,and predicting material behavior.

关键词： First-principles calculations Phase stability TCP phases Thermodynamic properties W–Re alloy

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Vector soliton and noise-like pulse generation using a Ti3C2 MXene material in a fiber laser

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Frontiers of Information Technology & Electronic Engineering 2021年第3期22卷 318-324页

作者： Shuai WANG Lei LI yu-feng song Ding-yuan TANG De-yuan SHEN Lu-ming ZHAO Jiangsu Key Laboratory of Advanced Laser Materials and Devices Jiangsu Collaborative Innovation Center of Advanced Laser Technology and Emerging IndustrySchool of Physics and Electronic EngineeringJiangsu Normal UniversityXuzhou 221116China Shenzhen Engineering Laboratory of Phosphorene and Optoelectronics International Institute of Microscale OptoelectronicsInternational Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of EducationShenzhen UniversityShenzhen 518060China School of Electrical and Electronic Engineering Nanyang Technological UniversitySingapore 639798Singapore Kunshan Shunke Laser Technology Co. Ltd.Suzhou 215300China

We built a Tm:Ho co-doped fiber laser using a Ti3C2 MXene material as a saturable absorber(SA).The formation of vector solitons(VSs)and noise-like pulses(NLPs)was *** SA was prepared by dripping a Ti3C2 solution on a side-polished D-shaped fiber and then naturally *** VS is characterized by two coexisting sets of Kelly *** modulating the polarization controller in the fiber laser,NLPs with about 3.3 nm bandwidth can be switched from the *** the best of our knowledge,this is the first time that VSs have been generated in a fiber laser using a Ti3C2 MXene material as the SA.

关键词： Vector soliton Noise-like pulse MXene Laser fiber

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基于核和灰度的区间灰数型灰色聚类模型

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控制与决策 2017年第10期32卷 1844-1848页

作者：党耀国冯宇丁松魏龙南京航空航天大学经济与管理学院南京211106

对传统灰色聚类模型进行延拓,考虑了观测值和白化权函数转折点为区间灰数的情形.通过"核"和灰度来表征区间灰数,以"灰度不减公理"作为理论依据,给出区间灰数型白化权函数的表达式,并将聚类过程中区间灰数运算转化为实数运算,进而建立灰... 详细信息

对传统灰色聚类模型进行延拓,考虑了观测值和白化权函数转折点为区间灰数的情形.通过"核"和灰度来表征区间灰数,以"灰度不减公理"作为理论依据,给出区间灰数型白化权函数的表达式,并将聚类过程中区间灰数运算转化为实数运算,进而建立灰色定权聚类模型.最后将该模型应用于南京市江宁区高新技术企业核心竞争力的聚类评估中,说明了所提出方法的有效性和实用性.

关键词：灰色聚类区间灰数白化权函数核及灰度

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Precise gradient separation of nanoparticles using reduced graphene oxide-polyoxomolybdate membranes

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Science China Chemistry 2025年第1期68卷 209-216页

作者： Yixin Yang Wanlei Zhao Ruoxuan Zheng Hongqiang Li Wei Chen yu-Fei song State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Quzhou Institute for Innovation in Resource Chemical Engineering

The purification and size sieving of nanoparticles （NPs） represents a significant scientific ***,the r GO-polyoxometalates (POMs=PMo12,Mo132and Mo368) membranes were fabricated successfully via a simple and scalable POMsassisted in-situ photoreduction *** the mass ratio of r GO to PMo12was 1:30,the resultant r GO-PMo12membranes with highly ordered and uniform nanochannels of 1.0 nm can be obtained,which showed an accurate carbon quantum dots（CQDs） separation with a cut-off size approximately 1.0 *** increase of the size of the interlayered POMs from PMo12（1.0 nm）,{Mo132}（2.9 nm） to{Mo368}（3.8 nm）,the resultant r GO-PMo12,r GO-Mo132and r GO-Mo368exhibited precise gradient separation of CQDs and Au nanoparticles by size exclusion *** results pave a promising way to construct new twodimensional （2D） membranes for highly efficient size-selective separation.

关键词： reduced graphene oxide polyoxometalates membranes gradient separation nanoparticles

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Recent Advances in Fibrous Materials for Hydroelectricity Generation

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Nano-Micro Letters 2025年第2期17卷 109-133页

作者： Can Ge Duo Xu Xiao feng Xing Yang Zheheng song yuhang song Jingyu Chen Yingcun Liu Chong Gao Yong Du Zhe Sun Weilin Xu Jian Fang College of Textile and Clothing Engineering Soochow UniversitySuzhou 215123People’s Republic of China National Engineering Laboratory for Modern Silk Soochow UniversitySuzhou 215123People’s Republic of China State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhan 430200People’s Republic of China Institute of Functional Nano&Soft Materials(FUNSOM) Soochow UniversitySuzhou 215123People’s Republic of China Department of Electrical and Computer Engineering University of MassachusettsAmherstMA 01003USA Department of Materials Imperial College LondonSouth Kensington CampusLondon SW72AZUK College of Textile Science and Engineering Zhejiang Sci-Tech UniversityHangzhou 310018People’s Republic of China School of Materials Science and Engineering Shanghai Institute of Technology100 Haiquan RoadShanghai 201418People’s Republic of China

Depleting fossil energy sources and conventional polluting power generation pose a threat to sustainable *** generation from ubiquitous and spontaneous phase transitions between liquid and gaseous water has been considered a promising strategy for mitigating the energy *** materials with unique flexibility,processability,multifunctionality,and practicability have been widely applied for fibrous materials-based hydroelectricity generation(FHG).In this review,the power generation mechanisms,design principles,and electricity enhancement factors of FHG are first ***,the fabrication strategies and characteristics of varied constructions including 1D fiber,1D yarn,2D fabric,2D membrane,3D fibrous framework,and 3D fibrous gel are ***,the advanced functions of FHG during water harvesting,proton dissociation,ion separation,and charge accumulation processes are analyzed in ***,the potential applications including power supply,energy storage,electrical sensor,and information expression are also ***,some existing challenges are considered and prospects for future development are sincerely proposed.

关键词： Hydroelectricity Fibrous material Streaming potential Ion diffusion

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Inspires effective alternatives to backpropagation:predictive coding helps understand and build learning

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Neural Regeneration Research 2025年第11期20卷 3215-3216页

作者： Zhenghua Xu Miao yu yuhang song School of Health Sciences and Biomedical Engineering Hebei University of TechnologyTianjinChina Department of Computer Science University of OxfordOxfordUK

Artificial neural networks are capable of machine learning by simulating the hiera rchical structure of the human *** enable learning by brain and machine,it is essential to accurately identify and correct the prediction errors,referred to as credit assignment(Lillicrap et al.,2020).It is critical to develop artificial intelligence by understanding how the brain deals with credit assignment in neuroscience.

关键词： assignment learning enable

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Universal design of three-dimensional porous graphene-iron based promotors for kinetically rationalized lithium-sulfur chemistry

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Journal of Energy Chemistry 2025年第1期100卷 192-200页

作者： Hua Gao yunfeng Zhang Menglei Wang Ruoxuan Yang Shuai feng Xuan Cao Yaping Zhang Zhongyuan Lu Yingze song State Key Laboratory of Environment-Friendly Energy Materials School of Materials and Chemistry Southwest University of Science and Technology School of Material Science and Engineering Henan University of Technology College of Chemistry and Chemical Engineering Taishan University

Lithium-sulfur （Li-S） batteries are widely deemed to be one of the most potential candidates for future secondary batteries because of their remarkable energy ***,notorious polysulfide shuttling and retarded sulfur reaction kinetics pose significant obstacles to the further application of Li-S *** rationally designed highly active electrocatalysts can facilitate polysulfide conversion,the universal and scalable synthesis strategies need to be ***,a universal synthetic strategy to construct a series of three-dimensional （3D） porous graphene-iron （3DGr-Fe） based electrocatalysts involving 3DGr-FeP,3DGr-Fe3C,and 3DGr-Fe3Se4is exploited for manipulating the Li-S redox *** has been observed that the implementation of a 3D porous Gr architecture leads to the well-designed conductive networks,while the uniformly dispersed iron nanoparticles introduce an abundance of active sites,fostering the lithium polysulfide conversion,thereby bolstering the overall electrochemical *** Li-S battery with the 3DGr-Fe based electrocatalyst exhibits remarkable capacity retention of 94.8%upon 100 times at 0.2 ***,the soft-packaged Li-S pouch cell based on such a 3DGr-Fe electrocatalyst delivers superior capacity of 1060.71 mA h g-1and guarantees for the continuous 30 min work of fan *** investigation gives comprehensive insights into the design,synthesis,and mechanism of 3DGr-Fe based electrocatalysts with high activity toward efficient and durable Li-S batteries.

关键词： Redox reactions

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Exploration of Gas‑Dependent Self‑Adaptive Reconstruction Behavior of Cu_(2)O for Electrochemical CO_(2)Conversion to Multi‑Carbon Products

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Nano-Micro Letters 2025年第3期17卷 280-296页

作者： Chaoran Zhang Yichuan Gu Qu Jiang Ziyang Sheng Ruohan feng Sihong Wang Haoyue Zhang Qianqing Xu Zijian yuan Fang song State Key Laboratory of Metal Matrix Composites School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240People’s Republic of China

Structural reconstruction of electrocatalysts plays a pivotal role in catalytic performances for CO_(2)reduction reaction(CO_(2)RR),whereas the behavior is by far superficially ***,we report that CO_(2)accessibility results in a universal self-adaptive structural reconstruction from Cu_(2)O to Cu@CuxO composites,ending with feeding gas-dependent microstructures and catalytic *** CO_(2)-rich atmosphere favors reconstruction for CO_(2)RR,whereas the CO_(2)-deficient one prefers that for hydrogen evolution *** the assistance of spectroscopic analysis and theoretical calculations,we uncover a CO_(2)-induced passivation behavior by identifying a reductionresistant but catalytic active Cu(I)-rich amorphous layer stabilized by*CO ***,we find extra CO production is indispensable for the robust production of *** inverse correlation between durability and FECO/FEC2H4 is disclosed,suggesting that the selfstabilization process involving the absorption of*CO intermediates on Cu(I)sites is essential for durable *** by this insight,we design hollow Cu_(2)O nanospheres for durable and selective CO_(2)RR electrolysis in producing *** work recognizes the previously overlooked passivation reconstruction and self-stabilizing behavior and highlights the critical role of the local atmosphere in modulating reconstruction and catalytic processes.

关键词： CO_(2)reduction reaction Electrocatalysts Cu_(2)O Reconstruction Self-adaptive electrocatalysis

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中国足球场场地质量评价体系构建——基于评价指标的认知度建立足球场场地质量分级评价体系

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草业科学 2017年第3期34卷 488-501页

作者：陈雨峰宋桂龙韩烈保北京林业大学草坪研究所北京100083

足球场场地作为足球运动的基础,其质量直接影响到比赛的竞技性和观赏性。目前国际上的各类足球场评价体系都是基于"通过式分级评价"或"平均重要性指标"进行评价的。本研究通过总结国内外足球场评价的相关标准和书籍,整理和筛选出足球场... 详细信息

足球场场地作为足球运动的基础,其质量直接影响到比赛的竞技性和观赏性。目前国际上的各类足球场评价体系都是基于"通过式分级评价"或"平均重要性指标"进行评价的。本研究通过总结国内外足球场评价的相关标准和书籍,整理和筛选出足球场质量评价的指标和指标的分级阈值。通过调查专家、足球运动员、足球爱好者对指标的认知重要程度,发现3类受调查者对于各指标的认知重要性有较明显差异,但对于一些场地质量核心指标却有相似的认知程度和趋势。这证明了传统的平均重要性假设或通过性评价的方式其评价和分级的方法是不客观的。将各类场地使用者对评价指标认知重要性引入评价体系并建立足球场场地质量评价,可以很好地解决评价场地不够客观的问题,可以更好地了解使用者对场地的需求,从而更好地建设和管理足球场场地,使我国足球场场地质量评价体系更具有科学性和实用性,使草坪质量更能满足场地使用者的需求。

关键词：足球场场地质量指标认知度层次分析法分级评价体系

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