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| 1 | A ternary phased SnO_2-Fe_2O_3/SWCNTs nanocomposite as a high performance anode material for lithium ion batteries显示文摘A new SnO_2-Fe_2O_3/SWCNTs(single-walled carbon nanotubes) ternary nanocomposite was first synthesized by a facile hydrothermal approach.SnO_2 and Fe_2O_3 nanoparticles(NPs) were homogeneously located on the surface of SWCNTs,as confirmed by X-ray diffraction(XRD),transmission electron microscope(TEM) and energy dispersive X-ray spectroscopy(EDX).Due to the synergistic effect of different components,the as synthesized SnO_2-Fe_2O_3/SWCNTs composite as an anode material for lithium-ion batteries exhibited excellent electrochemical performance with a high capacity of 692 mAh·g^(-1) which could be maintained after 50 cycles at 200 mA·g^(-1).Even at a high rate of2000 mA·g^(-1),the capacity was still remained at 656 mAh·g^(-1). | Wangliang Wu Yi Zhao Jiaxin Li Chuxin Wu Lunhui Guan | 2014 | Journal of Energy Chemistry2014，23，3： | 5 |
| 2 | Traffic chaos and its prediction based on a nonlinear car-following model显示文摘This paper discusses the dynamic behavior and its predictions for a simulated traffic flow based on the nonlinear response of a vehicle to the leading car’s movement in a single lane.Traffic chaos is a promising field,and chaos theory has been applied to identify and predict its chaotic movement.A simulated traffic flow is generated using a car-following model(GM model),and the distance between two cars is investigated for its dynamic properties.A positive Lyapunov exponent confirms the existence of chaotic behavior in the GM model.A new algorithm using a RBF NN (radial basis function neural network) is proposed to predict this traffic chaos.The experiment shows that the chaotic degree and predictable degree are determined by the first Lyapunov exponent.The algorithm proposed in this paper can be generalized to recognize and predict the chaos of short-time traffic flow {series.} | Hui FU Jianmin XU Lunhui XU | 2005 | 控制理论与应用(英文版)2005，3，3： | 2 |
| 3 | Influence of different Fe doping strategies on modulating active sites and oxygen reduction reaction performance of Fe, N-doped carbonaceous catalysts显示文摘Fe/N/C catalysts,synthesized through the pyrolysis of Fe-doped metal–organic framework (MOF) precursors,have attracted extensive attention owing to their promising oxygen reduction reaction (ORR) catalytic activity in fuel cells and/or metal-air batteries.However,post-treatments (acid washing,second pyrolysis,and so on) are unavoidable to improve ORR catalytic activity and stability.The method for introducing Fe^(3+) sources (anhydrous Fe Cl_(3)) into the MOF structure,in particular,is a critical step that can avoid time-consuming post-treatments and result in more exposed Fe-N_(x) active sites.Herein,three different Fe doping strategies were systematically investigated to explore their influence on the types of active sites formed and ORR performance.Fe-NC(Zn^(2+)),synthesized by one-step pyrolysis of Fe doped ZIF-8 (Zn^(2+)) precursor which was obtained by adding the anhydrous Fe Cl_(3)source into the Zn(NO_(3))_(2)·6H_(2)O/methanol solution before mixing,possessed the highest Fe-N_(x)active sites due to the high-efficiency substitution of Zn^(2+)ions with Fe^(3+) ions during ZIF-8 growth,the strong interaction between Fe^(3+) ions and N atoms of 2-Methylimidazole (2-MIm),and ZIF-8’s micropore confinement effect.As a result,Fe-NC(Zn^(2+)) presented high ORR activity in the entire p H range (p H=1,7,and 13).At p H=13,Fe-NC(Zn^(2+)) exhibited a half-wave potential (E1/2) of 0.95 V (vs.reversible hydrogen electrode),which was 70 m V higher than that of commercial Pt/C.More importantly,Fe-NC(Zn^(2+)) showed superior ORR stability in neutral media without performance loss after 5,000 cycles.A record-high open-circuit voltage(1.9 V) was obtained when Fe-NC(Zn^(2+)) was used as a cathodic catalyst in assembled Mg-air batteries in neutral media.The assembled liquid and all-solid Mg-air batteries with high performance indicated that Fe-NC(Zn^(2+)) has enormous potential for use in flexible and wearable Mg-air batteries. | Yang Liu Suqiong He Bing Huang Ziyan Kong Lunhui Guan | 2022 | Journal of Energy Chemistry2022，31，7： | 1 |
| 4 | Effects of landscape structure, habitat and human disturbance on birds: A case study in East Dongting Lake wetland显示文摘 | Yujie Yuan Guangming Zeng Jie Liang Xiaodong Li Zhongwu Li Chang Zhang Lu Huang Xu Lai Lunhui Lu Haipeng Wu Xun Yu | 2014 | Ecological Engineering2014，，： | 1 |
| 5 | Ferrocene-filled single-walled carbon nanotubes显示文摘 | Lunhui Guan Zujin Shi Meixian Li Zhennan Gu | 2005 | Carbon2005，，13： | 1 |
| 6 | Application of fuzzy fault-tree analysis to assess the reliability of a protection system for a switchyard 显示文摘 | HONG Yingyi LEE Lunhui CHENG Henghsing | 2008 | International Journal of Emerging Electric Power Systems2008，9，4： | 1 |
| 7 | Pre-fixing defects in carbon framework for revealing the active sites of oxygen reduction reaction at nitrogen-doped carbon nanotubes显示文摘Nitrogen-doped carbon-based materials are promising non-platinum group metal electrocatalysts for the oxygen reduction reaction(ORR).Understanding their ORR active sites is vital for the rational design and development of nitrogen-doped carbon-based electrocatalysts with enhanced catalytic efficiency and selectivity.However,the conclusive analysis of the ORR mechanism of nitrogen-doped carbon-based electrocatalysts remains a grand challenge because the catalysts have a complex inhomogeneous structure.Here,we elucidate this problem using nitrogen-doped carbon nanotubes framework catalysts with fixed defect concentrations prepared by pre-thermal treatment at a low temperature.The generation of defects under high-temperature treatment was effectively suppressed to enable a simple model for ORR mechanism study.A correlation between ORR pathways and the different nitrogen species in the nitrogen-doped carbon catalysts was revealed through a combination of structural and electrochemical properties investigations.Besides,our results also demonstrate the importance of defects for ORR.We believe that the results will provide instructive guidance for designing and developing novel carbon nanomaterials for ORR. | Bing Huang Kun Hou Yang Liu Rongtao Hu Lunhui Guan | 2021 | Journal of Energy Chemistry2021，30，12： | 1 |
| 8 | Coaxial MWNTs@MnO 2 confined in conducting PPy for kinetically efficient and long-term lithium ion storage显示文摘 | Jiaxin Li Mingzhong Zou Yi Zhao Yingbin Lin Heng Lai Lunhui Guan Zhigao Huang | 2013 | Electrochimica Acta2013，，： | 1 |
| 9 | Efficient visual feedback method to control a three-dimensional overhead crane显示文摘 | LEE Lunhui CHUNG-HAO H SUNG-CHIH K | 2014 | IEEE Transactions on Industrial Electronics2014，61，8： | 1 |
| 10 | Defect engineering of single-walled carbon nanohorns for stable electrochemical synthesis of hydrogen peroxide with high selectivity in neutral electrolytes显示文摘Hydrogen peroxide(H_(2)O_(2))is one of the most important chemicals,which are commonly used in the paper and pulp industry,water purification and environmental protection[1-3].Most of the commercial available H_(2)O_(2) is produced by the anthraquinone oxidation process,which is environment unfriendly. | Yang Liu Jianshuo Zhang Suqiong He Yaqi Cui Lunhui Guan | 2021 | Journal of Energy Chemistry2021，30，3： | 1 |
| 11 | CuO/polypyrrole core–shell nanocomposites as anode materials for lithium-ion batteries显示文摘 | Zhigang Yin Yunhai Ding Qingdong Zheng Lunhui Guan | 2012 | Electrochemistry Communications2012，，： | 1 |
| 12 | Topological vortex phase transitions in iron-based superconductors显示文摘We study topological vortex phases in iron-based superconductors. Besides the previously known vortex end Majorana zero modes(MZMs) phase stemming from the existence of a three dimensional(3 D) strong topological insulator state, we show that there is another topologically nontrivial phase as iron-based superconductors can be doped superconducting 3 D weak topological insulators(WTIs). The vortex bound states in a superconducting 3 D WTI exhibit two different types of quantum states, a robust nodal superconducting phase with pairs of bulk MZMs and a full-gap topologically nontrivial superconducting phase which has single vortex end MZM in a certain range of doping level. Moreover, we predict and summarize various topological phases in iron-based superconductors, and find that carrier doping and interlayer coupling can drive systems to have phase transitions between these different topological phases. | Shengshan Qin Lunhui Hu Xianxin Wu Xia Dai Chen Fang Fu-Chun Zhang Jiangping Hu | 2019 | Science Bulletin2019，64，17： | 0 |
| 13 | Monodispersed SWNTs Assembled Coating Layer as an Alternative to Graphene with Enhanced Alkali-ion Storage Performance显示文摘Graphene coating is commonly used to improve the performance of electrode materials,while its steric hindrance effect hampers fast ion transport with compromised rate capability.Herein,a unique single-walled carbon nanotubes(SWNTs)coating layer,as an alternative to graphene,has been developed to improve the battery behavior of iron-based anodes.Benefiting from the structure merits of mesoporous SWNTs layer for fast electron/ion transport and hollow Fe_(3)O_(4) for volume accommodation,as-prepared Fe_(3)O_(4)@SWNTs exhibited excellent lithium storage performance.It delivers a high capacity,excellent rate capability,and long lifespan with capacities of 582 mA·h·g^(-1) at 5 A·g^(-1) and 408 mA·h·g^(-1) at 8 A·g^(-1) remained after 1000 cycles.Such performance is better than graphene-coated Fe_(3)O_(4) and other SWNT-Fe_(3)O_(4) architectures.Besides,SWNTs coating is also used to improve the sodium and potassium storage performance of FeSe_(2).The kinetics analysis and ex-situ experiment further reveal the effect of SWNTs coating for fast electron/ion transfer kinetics and good structure stability,thus leading to the superior performance of SWNTs-coated composites. | Chaoying Wang Qianqian Yao Yanmei Gan Qixin Zhang Lunhui Guan Yi Zhao | 2022 | Chinese Journal of Structural Chemistry2022，41，1： | 0 |
| 14 | Approaching Superior Potassium Storage of Carbonaceous Anode Through a Combined Strategy of Carbon Hybridization and Sulfur Doping显示文摘Carbonaceous materials are promising anode candidates for potassium-ion batteries(PIBs)given its high conductivity,stable property,and abundant resource,while its practical implementation is still hampered by its limited capacity and inferior rate behavior.Herein,we report a superior carbonaceous anode through a combined strategy of carbon hybridization and heteroatom doping.In this composite,hollow carbon spindles(HCS)were anchored on the surface of graphene(G)followed with sulfur doping treatment,aiming to integrate the high conductivity of graphene,the good structure stability of HCS,and the S doping-induced ample active sites.As a PIB anode,the S-G@HCS composite can display high capacity(301 mAh g^(-1)at 0.1 A g^(-1)after 500 cycles)and long-term cyclability up to 1800 cycles at 2 A g^(-1).Impressively,it can deliver an outstanding rate capacity of 215 mAh g^(-1)at 10 A g^(-1),which is superior to most carbon anodes as-reported so far for PIBs.Experimental and theoretical analysis manifests that the construction of graphene/amorphous carbon interface as well as S doping enables the regulation of electronic structure and ion adsorption/transportation properties of carbonaceous material,thus accounting for the high capacity and superior rate capability of S-G@HCS composite. | Qianqian Yao Yanmei Gan Zuju Ma Xiangying Qian Suzhi Cai Yi Zhao Lunhui Guan Wei Huang | 2022 | Energy & Environmental Materials2022，5，3： | 0 |
| 15 | Highly Dispersive Metal Atoms Anchored on Carbon Matrix Obtained by Direct Rapid Pyrolysis of Metal Complexes显示文摘The oxygen reduction reaction(ORR)and oxygen evolution reaction(OER)are critical in energy conversion and storage devices.Single-atom catalysts(SAC)with atomic utilization efficiency are among the most promising candidates for oxygen reactions.Focusing on the controllable and efficient synthesis of SACs,we develop a direct rapid pyrolysismethod that shortens the synthesis process from several hours to 1 min. | Bing Huang Minghao Wang Chuxin Wu Lunhui Guan | 2022 | CCS Chemistry2022，4，9： | 0 |
| 16 | Field-effect Transistors Based on Single-wall Carbon Nanotubes Bundles显示文摘 | WANG Xiaofeng GUO Ao GUAN Lunhui SHI Zujin GU Zhennan FU Yunyi ZHANG Xing Huang Ru | 2005 | Chinese Journal of Electronics2005，14，4： | 0 |
| 17 | Boosting Stable and Fast Potassium Storage of Iron Sulfide through Rational Yolk-Shell Design and Ni Doping显示文摘Metal sulfides have been regarded as promising anodes for potassium-ion batteries(PIBs)due to their high theoretical capacities,while the performance is limited by their intrinsic poor conductivity and large volume fluctuation during the insertion/extraction of large potassium ion.Herein,the battery performance of iron sulfide anode is significantly enhanced through yolk-shell(Y-S)structure design and nickel doping,aiming to realize good structure stability and superior electron/ion transportation.For potassium storage,as-prepared Y-S Ni-FeS_(2)@C shows excellent cyclic performance and sustains high capacities of 328 mA h g^(-1)after 100 cycles at 0.2 A g^(-1)and 226 mA h g^(-1)after 1000 cycles at 1 A g^(-1).Especially,it displays a superior rate capacity of 200 mA h g^(-1)at 20 A g^(-1),higher than that of Y-S FeS_(2)@C and most as-reported metal sulfide anodes for PIBs.The experimental analysis and theoretical calculation illuminate the effect of Ni-doping on decreasing the particle size of iron sulfide and enhancing the ion/electron transport ability,thus accounting for the exceptional rate capability of Y-S Ni-FeS_(2)@C composite. | Yanmei Gan Jiajie Zhu Qixin Zhang Chaoying Wang Lunhui Guan Yi Zhao | 2022 | Chinese Journal of Structural Chemistry2022，41，5： | 0 |
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