检索结果-南通市图书馆

Energy & Environmental Materials 2020年第4期3卷 529-534页

作者： Yanyou Yin Yu Zhang Nannan Liu lishuang fan Naiqing Zhang State Key Laboratory of Urban Water Resource and Environment School of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin 150001China Academy of Fundamental and Interdisciplinary Sciences Harbin Institute of TechnologyHarbin 150001China

Transitional metal phosphides(TMPs)anode materials usually have large volume change and weak diffusion kinetics,leading to poor cycle *** TMPs with conductive carbon matrix has been widely used to boost sodium ***,it still needs to make efforts in the rational and facile design of nano/micro-structural TMPs/carbon hybrid anode ***,a MOFs-derived strategy is developed to synthesize porous yolk–shell Mo P/Cu_(3)P@carbon microcages(Mo P/Cu_(3)P@C)through in situ and confined phosphidation reaction as a high-performance sodium-ion batteries *** yolk–shell structure can offer adequate internal space to buffer the large volume expansion,shorten diffusion distance,and create more active sites of Na+.Especially,the Cu nanoparticles generated from Cu_(3)P have remarkable electronic conductivity of 5.73107S m-1(the second most conductive metal)to benefit transporting *** the introduction of Mo(Mo P has high theoretical capacity of 633 mA h g^(-1))can enhance the reversible capacity of the whole anode ***,these porous yolk–shell Mo P/Cu_(3)P@carbon microcages possess excellent reversible capacity of 307.8 mA h g^(-1)at 1.0 A g^(-1)and extraordinary cycle stability of 132.1 m A h g^(-1)at 5.0 A g^(-1)even after 6000 cycles.

关键词： sodium-ion batteries metal–organic frameworks MoP Cu_(3)P yolk–shell

Kinetically enhanced electrochemical redox reactions by chemical bridging SnO_(2)and graphene sponges toward high-rate and long-cycle lithium ion battery

在线全文

学校读者我要写书评

暂无评论

Journal of Materials Science & Technology 2021年第29期88卷 250-257页

作者： lishuang fan Yu Zhang Hao Zhou Zhikun Guo Yujie Feng Naiqing Zhang State Key Laboratory of Urban Water Resource and Environment Harbin Institute of TechnologyChina Academy of Fundamental and Interdisciplinary Sciences Harbin Institute of TechnologyHarbin150001China School of Energy Science and Engineering Harbin Institute of TechnologyHarbinChina

Graphene has been widely used to improve the electrochemical performance in rate and cycling stability for SnO_(2).However,the mechanism of the synergistic effect and the interfacial interaction between SnO_(2)and graphene are still not fully ***,we put forward a novel,cost effective strategy to construct hierarchical SnO_(2)nanoclusters anchored on the graphene sponges for lithium storage by in situ self *** result shows that the synergistic effect and interfacial interaction origin form the existence of strong oxygen bridges between SnO_(2)and graphene via the C-O-Sn *** is demonstrated for the first time that the interfacial interaction by C-O-Sn bonding plays a crucial role in the rate and cycling stability both experimentally and ***,the SnO_(2)@graphene sponges exhibit remarkable rate capability(a reversible capability of 1141,997,912,831,693,536,and 302 mA h g^(-1)at 0.2 C,0.5 C,1 C,2 C,5 C,10 C and 20 C,respectively)and cycling performance(after 625 cycles at 6 A g^(-1)with a capacity retention of 537 m A h g^(-1)).

关键词： SnO_(2) Graphene sponges C-O-Sn bond Pseudocapacitive contributions Lithium ion battery

A New and Facile Strategy for Determination of Lead and Cadmium Using Silver Electrodes Manufactured from Digital Versatile Discs

在线全文

学校读者我要写书评

暂无评论

Chemical Research in Chinese Universities 2017年第5期33卷 799-803页

作者： CUI Wenyu fan lishuang GENG Lin AN Maozhong ZHANG Fujun School of Materials Science and Engineering Harbin Institute of Technology Harbin 150001 P. R. China School of Pharmacy Harbin University of Commerce Harbin 150076 P. R. China School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin 150001 17. R. China Jixi Enviromental Inspection Detachment Jixi 158100 P. R. China

The use of a digital versatile disc（DVD）-based Ag electrode for the square-wave anodic stripping voltammetric determination of Pb2＋ and Cd2＋ was described. The effect of I- on the stripping analysis of Pb2＋ and Cd2＋ at Ag electrodes was first studied. F significantly improved the stripping peaks of both Pb2＋ and Cd2＋. The square-wave voltammetric stripping response was linear over 5-50 μg/L for Pb2＋ and Cd2＋ with a deposition time of 118 s. The detection limits were 0.2 and 2.6 μg/L for Pb2＋ and Cd2＋, respectively. The high sensitivity, selectivity, and stability of this DVD-based Ag electrode enabled its practical application for simple, rapid and economical determination of trace levels of Cd2＋ and Pb2＋ in tap water samples. In addition, detection can be achieved without sample deoxygenation and the electrode can be easily manufactured.

关键词： Digital versatile disc(DVD)-basedAg electrode Ag pb2+ Cd2+ Stripping analysis

Fabrication of layered structure VS4 anchor in 3D graphene aerogels as a new cathode material for lithium ion batteries

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Frontiers in Energy 2019年第3期13卷 597-602页

作者： Lijun WU Yu ZHANG Bingjiang LI Pengxiang WANG lishuang fan Naiqing ZHANG Kening SUN State Key Laboratory of Urban Water Resource and Environment School of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin 150001China School of Chemistry and Chemical Engineering Academy of Fundamental and Interdisciplinary SciencesHarbin Institute of TechnologyHarbin 150001China

VS4 has gained more and more attention for its high theoretical capacity (449 mAh/g with 3e^- transfer) in lithium ion batteries (LIBs). Herein, a layered structure VS4 anchored in graphene aerogels is prepared and first reported as cathode material for LIBs. VS4@GAs composite exhibits an exceptional high initial reversible capacity (511 mAh/g), an excellent high-rate capability (191 mAh/g at the 5 C), and an excellent cyclic stability (239 mAh/g after 15 cycles).

关键词： VS4 graphene aerogels cathode lithium storage

The discovery of interfacial electronic interaction within cobalt boride@MXene for high performance lithium-sulfur batteries

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2021年第7期32卷 2249-2253页

作者： Bin Guan Xun Sun Yu Zhang Xian Wu Yue Qiu Maoxu Wang lishuang fan Naiqing Zhang State Key Laboratory of Urban Water Resource and Environment School of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin 150001China Academy of Fundamental and Interdisciplinary Sciences Harbin Institute of TechnologyHarbin 150001China

Lithium-sulfur battery is strongly considered as the most promising next-generation energy storage system because of the high theoretical specific *** serious"shuttle effect"and sluggish reaction kinetic limited the commercial application of lithium-sulfur *** hetero structure s were applied to accelerate polysulfides conversion and suppress their migration in lithium-sulfur ***,the effect of the interface in heterostructure was not ***,the Co_(2)B@MXene heterostructure is synthesized through chemical reactions at room temperature and employed as the interlayer material for Li-S *** theoretical calculations and experimental results indicate that the interfacial electronic interaction of Co_(2)B@MXene induce the transfer of electrons from Co_(2)B to MXene,enhancing the catalytic ability and favoring fast redox kinetics of the polysulfides,and the theoretical calculations also reveal the underlying mechanisms for the electron transfer is that the two materials have different Fermi energy *** cell with Co_(2)B@MXene exhibits a high initial capacity of1577 mAh/g at 0.1 C and an ultralow capacity decay of 0.0088%per cycle over 2000 cycles at 2 *** at5.1 mg/cm^(2) of sulfur loading,the cell with Co_(2)B@MXene delivers 5.2 mAh/cm^(2) at 0.2 C.

关键词： Co_(2)B@MXene Separator Interfacial electronic interaction Catalytic activity Lithium-sulfur batteries

Heterogeneous Mediator Enabling Three-Dimensional Growth of Lithium Sulfide for High-Performance Lithium-Sulfur Batteries

在线全文

学校读者我要写书评

暂无评论

Energy & Environmental Materials 2022年第4期5卷 1214-1221页

作者： Da Tian Xueqin Song Yue Qiu Xun Sun Bo Jiang Chenghao Zhao Yu Zhang Xianzhu Xu lishuang fan Naiqing Zhang School of Chemistry and Chemical Engineering Harbin Institute of TechnologyHarbin 150001China Academy of Fundamental and Interdisciplinary Sciences Harbin Institute of TechnologyHarbin 150001China State Keys Laboratory of Urban Water Resource and Environment Harbin Institute of TechnologyHarbin 150001China

Two-dimensional(2D)deposition regime of insulating lithium sulfide(Li_(2)S)is a major obstacle to achieve high reversible capacity in the conventional glyme-based lithium-sulfur(Li-S)batteries as it leads to rapid loss of active electrode surface and low sulfur *** three-dimensional(3D)growth of Li_(2)S is therefore considered to be necessary,but the available strategies are mainly based on the electrolyte manipulations,which inevitably lead to added complexity of the electrode-electrolyte compatibility and,in particular,instability of the lithium *** this work,we have developed a heterogeneous polysulfide mediator composed of discrete Mo_(5)N_(6) anchored on graphene,which functions on the cathode side,to regulate the deposition mode of Li_(2)***_(5)N_(6) can efficiently boost the formation of Li_(2)S as demonstrated by a series of experimental and computational *** importantly,the discrete distribution of Mo_(5)N_(6) nucleants on graphene postpones the merging of adjacent Li_(2)S nuclei to promote their isotropic ***,3D deposits of Li_(2)S is guided by the heterogeneous *** from these unique superiorities,Li-S cells with high rate capability of 954 mAh g^(-1) at 2 C and long cycle life exceeding 1000 cycles are realized without advanced lithium anode protection.

关键词： electrocatalysis lithium sulfide nucleation lithium-sulfur batteries polysulfide redox reaction shuttle effect

High-Index Faceted Nanocrystals as Highly Efficient Bifunctional Electrocatalysts for High-Performance Lithium-Sulfur Batteries

在线全文

学校读者我要写书评

暂无评论

Nano-Micro Letters 2022年第2期14卷 324-338页

作者： Bo Jiang Da Tian Yue Qiu Xueqin Song Yu Zhang Xun Sun Huihuang Huang Chenghao Zhao Zhikun Guo lishuang fan Naiqing Zhang State Key Laboratory of Urban Water Resource and Environment School of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin 150001People’s Republic of China Academy of Fundamental and Interdisciplinary Sciences Harbin Institute of TechnologyHarbin 150001People’s Republic of China School of Energy Science and Engineering Harbin Institute of TechnologyHarbin 150001People’s Republic of China

Precisely regulating of the surface structure of crystalline materials to improve their catalytic activity for lithium polysulfides is urgently needed for high-performance lithium-sulfur(Li-S)***,high-index faceted iron oxide(Fe_(2)O_(3))nanocrystals anchored on reduced graphene oxide are developed as highly efficient bifunctional electrocatalysts,effectively improving the electrochemical performance of Li-S *** theoretical and experimental results all indicate that high-index Fe_(2)O_(3)crystal facets with abundant unsaturated coordinated Fe sites not only have strong adsorption capacity to anchor polysulfides but also have high catalytic activity to facilitate the redox transformation of polysulfides and reduce the decomposition energy barrier of Li_(2)*** Li-S batteries with these bifunctional electrocatalysts exhibit high initial capacity of 1521 mAh g^(-1)at 0.1 C and excellent cycling performance with a low capacity fading of 0.025%per cycle during 1600 cycles at 2 *** with a high sulfur loading of 9.41 mg cm^(-2),a remarkable areal capacity of 7.61 mAh cm^(-2)was maintained after 85 *** work provides a new strategy to improve the catalytic activity of nanocrystals through the crystal facet engineering,deepening the comprehending of facet-dependent activity of catalysts in Li-S chemistry,affording a novel perspective for the design of advanced sulfur electrodes.

关键词： High-index faceted Fe_(2)O_(3)nanocrystals Unsaturated coordinated Lithium-sulfur batteries Electrocatalysis

High lithiophilic nitrogen-doped carbon nanotube arrays prepared by in-situ catalyze for lithium metal anode

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2021年第7期32卷 2254-2258页

作者： Chenyang Zhao Xiaoju Yin Zhikun Guo Dan Zhao Guiye Yang Aosai Chen lishuang fan Yu Zhang Naiqing Zhang State Key Laboratory of Urban Water Resource and Environment School of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin 150001China Academy of Fundamental and Interdisciplinary Sciences Harbin Institute of TechnologyHarbin 150001China

Lithium metal has a very outstanding theoretical capacity(3860 mAh/g)and is one of the most superior anode materials for high energy density ***,the uncontrollable dendrite growth and the fo rmation of"dead lithium"are the important hidden dangers of short cycle life and low ***,the uncontrollable dendrite growth and the fo rmation of dead lithium leads to short cycle life and hidden dange r,which hinder its practical *** the nucleation and growth process of lithium is an effective strategy to inhibit lithium ***,a simple in situ self-catalytic method is used to construct nitrogen doped carbon nanotube arrays on stainless steel mesh(N-CNT@SS)as a lithium composite *** N-doped CNTs provide a great number of N-functional groups,which enhance the lithiophilic of anode and provide a large number of uniform nucleation sites,hence it has excellent structural stability for *** arrays provide neat lithium-ion transport channels to uniform lithiumion flux and inhibits dendrite generation,revealed by the COMSOL multi-physics concentration field *** N-CNT@SS composite anode sustain stable at 98.9%over 300 cycles at 1 mA/***@SS as the anode is coupled LiFePO_(4)(LFP)as the cathode construct a full battery,demonstrating excellent cycling stability with a capacity of 152.33 mAh/g and capacity retaining ratio of 95.4%after 100 cycles at 0.5 C.

关键词： Lithium metal batteries Nitrogen doped carbon nanotubes Stainless steel mesh COMSOL multi-physics concentration field Simulation Lithiophilic anode

数字经济对海洋渔业经济高质量发展的影响研究

在线全文

学校读者我要写书评

暂无评论

海洋经济 2024年第6期14卷 56-64页

作者：范丽爽中国海洋大学经济学院青岛266100

基于2011-2020年我国11个沿海地区的面板数据,运用全局熵值法测度我国沿海地区的海洋渔业经济高质量发展水平,并构建中介效应模型考察数字经济对其影响及科技创新在该影响机制中发挥的作用。结果显示,我国沿海地区的海洋渔业经济高质量... 详细信息

基于2011-2020年我国11个沿海地区的面板数据,运用全局熵值法测度我国沿海地区的海洋渔业经济高质量发展水平,并构建中介效应模型考察数字经济对其影响及科技创新在该影响机制中发挥的作用。结果显示,我国沿海地区的海洋渔业经济高质量发展水平整体呈现上升趋势;数字经济能够通过提高科技创新水平,从而推动海洋渔业经济的高质量发展,且科技创新发挥着部分中介效应。

关键词：数字经济海洋渔业经济高质量发展科技创新中介效应全局熵值法

在线全文

学校读者我要写书评

暂无评论

体育产业成为我国经济增长点的影响因素分析

吉林体育学院学报 2007年第1期23卷 7-8页

作者：范立双北京师范大学发展委员会北京100875

影响体育产业成为国民经济新的经济增长点的因素是多方面的,既有观念上的突破,又有政策的变革和市场需求的推动。可以说,是多种因素综合作用的结果。

关键词：体育产业经济增长点影响因素