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| 1 | A novel synthesis strategy to improve cycle stability of LiNio.8Mno.1Co0.1O2 at high cut-off voltages through core-shell structuring显示文摘Nickel-rich cathode materials have attracted considerable interest because of their high specific capacities,voltage ranges,and low cost.However,serious capacity attenuation and poor rate performance limit their application.This study proposes a novel strategy to improve the cycle stability of the nickel-rich LiNi0.sCo0.1Mn0.1O2(NCM811)layer material by designing core-shell LiNio.sCoo.1 Mno.102(CS-NCM811).CS-NCM811 is designed by the characteristic reaction between dimethylglyoxime(C4H8N2O2)and nickel ion to form Ni(C4H7N2O2)2-The CS-NCM811 is characterized with high nickel content in its core and high manganese content on its surface,leading to a high capacity and excellent cycle stability.The capacity retention of CS-NCM811 was 72.8%,much higher than that of NCM811(47.1%)after 500 cycles at a rate of 5 C.Not only is this method a no vel strategy to desig n high capacity cathode materials but also provides some new in sights into the cycle stability of nickel-rich layered cathode materials. | Kang Wu Qi Li Rongbin Dang Xin Deng Minmin Chen Yu Lin Lee Xiaoling Xiao Zhongbo Hu | 2019 | Nano Research2019,12,10: | 12 |
| 2 | Nanotechnology-based strategies for treatment of ocular disease显示文摘Ocular diseases include various anterior and posterior segment diseases. Due to the unique anatomy and physiology of the eye, efficient ocular drug delivery is a great challenge to researchers and pharmacologists. Although there are conventional noninvasive and invasive treatments, such as eye drops,injections and implants, the current treatments either suffer from low bioavailability or severe adverse ocular effects. Alternatively, the emerging nanoscience and nanotechnology are playing an important role in the development of novel strategies for ocular disease therapy. Various active molecules have been designed to associate with nanocarriers to overcome ocular barriers and intimately interact with specific ocular tissues. In this review, we highlight the recent attempts of nanotechnology-based systems for imaging and treating ocular diseases, such as corneal d iseases, glaucoma, retina diseases, and choroid diseases. Although additional work remains, the progress described herein may pave the way to new,highly effective and important ocular nanomedicines. | Yuhua Weng Juan Liu Shubin Jin Weisheng Guo Xingjie Liang Zhongbo Hu | 2017 | Acta Pharmaceutica Sinica B2017,7,3: | 6 |
| 3 | Tailoring interphase structure to enable high-rate, durable sodium-ion battery cathode显示文摘Na-based layered transition metal oxides with O_(3)-type structure have been considered to be promising cathodes for Na-ion batteries. However, the intrinsically limited Na-ion conductivity induced by the Otype Na-coordinate environment compromises their rate and cycle capability, hindering their practical application. Here, we report an interphase-structure tailoring strategy that improves the electrochemical properties of O_(3)-type layered cathodes achieved through surface coating and doping processes.Specifically, a Zr-doped interphase structure is designed in the model compound NaNi_(1/3)Mn_(1/3)Fe_(1/3)O_(2) using the ionic conductor Na_(3)Zr_(2)Si_(2)PO_(12) as the surface coating material and Zr-dopant provider. We discover that the modified NaNi_(1/3)Mn_(1/3)Fe_(1/3)O_(2)cathode shows a stable Na-storage structure as well as an enhanced rate/cycle capability. Combined with theoretical calculations, it is suggested that the superior electrochemical performances originate from the Zr-doped interphase structure, which has an enlarged Na layer spacing that forms favorable Na-ion diffusion channels. This work highlights a general material interface optimization method which opens a new perspective for fabricating high-performance electrodes for Na-ion batteries and beyond. | Na Li Shaofei Wang Enyue Zhao Wen Yin Zhigang Zhang Kang Wu Juping Xu Yoshihiro Kuroiwa Zhongbo Hu Fangwei Wang Jinkui Zhao Xiaoling Xiao | 2022 | Journal of Energy Chemistry2022,31,5: | 4 |
| 4 | Characteristics of land-atmosphere energy and turbulentfluxes over the plateau steppe in central Tibetan Plateau显示文摘The land-atmosphere energy and turbulence exchange is key to understanding land surface processes on the Tibetan Plateau(TP). Using observed data for Aug. 4 to Dec. 3, 2012 from the Bujiao observation point(BJ) of the Nagqu Plateau Climate and Environment Station(NPCE-BJ), different characteristics of the energy flux during the Asian summer monsoon(ASM) season and post-monsoon period were analyzed. This study outlines the impact of the ASM on energy fluxes in the central TP. It also demonstrates that the surface energy closure rate during the ASM season is higher than that of the post-monsoon period. Footprint modeling shows the distribution of data quality assessments(QA) and quality controls(QC) surrounding the observation point. The measured turbulent flux data at the NPCE-BJ site were highly representative of the target land-use type. The target surface contributed more to the fluxes under unstable conditions than under stable conditions. The main wind directions(180° and 210°) with the highest data density showed flux contributions reaching 100%, even under stable conditions. The lowest flux contributions were found in sectors with low data density, e.g., 90.4% in the 360° sector under stable conditions during the ASM season. Lastly, a surface energy water balance(SEWAB) model was used to gap-fill any absent or corrected turbulence data. The potential simulation error was also explored in this study. The Nash-Sutcliffe model efficiency coefficients(NSEs) of the observed fluxes with the SEWAB model runs were 0.78 for sensible heat flux and 0.63 for latent heat flux during the ASM season, but unrealistic values of-0.9 for latent heat flux during the post-monsoon period. | MaoShan Li ZhongBo Su YaoMing Ma XueLong Chen Lang Zhang ZeYong Hu | 2016 | Research in Cold and Arid Regions2016,8,2: | 3 |
| 5 | Studies on water movement and solute transport in acid land显示文摘 | Zhongbo Yu Bill Hu | 2003 | Journal of hydrology2003,275,: | 1 |
| 6 | Effective removal of Cu ( Q )ions from aqueous solution by amino-functionalized magneticnanoparticles 显示文摘 | Hao Yongmei Man Chen Hu Zhongbo | 2010 | Journal of hazardous materials2010,184,123: | 1 |
| 7 | Synthesis and properties of the negative thermal expansion material cubic ZrMo2O8 显示文摘 | LIND C WILKINSON P A HU ZHONGBO | 1998 | Chem Mater1998,10,9: | 1 |
| 8 | Thermal expansion properties of A2(MO4)3 (A = Ho and Tm; M = W and Mo) 显示文摘 | Kiyanagi R Fieramose J S Hu Zhongbo | 2008 | Solid State Sciences2008,10,3: | 1 |
| 9 | Effect of environmental factors on estrogenic compounds adsorption by MIP显示文摘 | Zhang Zhongbo Hu Jiangyong | 2010 | Water Air Soil Pollut2010,210,: | 1 |
| 10 | Tuning anionic redox activity to boost high-performance sodium-storage in low-cost Na_(0.67)Fe_(0.5)Mn_(0.5)O_(2) cathode显示文摘Na-based layered iron-manganese oxide Na_(0.67)Fe_(0.5)Mn_(0.5)O_(2) containing only low-cost elements is a promising cathode for Na-ion batteries used in large-scale energy storage systems.However,the poor cycle stability restricts its practical application.The capacity decay of Na_(0.67)Fe_(0.6)Mn_(0.5)O_(2) mainly originates from the irreversible anionic redox reaction charge compensation due to the high-level hybridization between oxygen and iron.Herein,we rationally design a surface Ti doping strategy to tune the anionic redox reaction activity of Na_(0.67)Fe_(0.5)Mn_(0.5)O_(2) and improve its Na-storage properties.The doped Ti ions not only enlarge the Na migration spacing layer but also improve the structure stability thanks to the strong Ti-O bond.More importantly,the d0-shell electronic structure of Ti^(4+) can suppress the charge transfer from the oxidized anions to cations,thus reducing the anionic redox reaction activity and enhancing the reversibility of charge compensation.The modified Na_(0.67)Fe_(0.5)Mn_(0.5)O_(2) cathode shows a reversible capacity of 198 mA h g^(-1) and an increased capacity retention from 15% to 73% after about1 month of cycling.Meanwhile,a superior Na-ion diffusion kinetics and rate capability are also observed.This work advances the commercialization process of Na-based layered iron-manganese oxide cathodes;on the other hand,the proposed modification strategy paves the way for the design of high-performance electrode materials relying on anionic redox reactions. | Jianyue Jiao Kang Wu Na Li Enyue Zhao Wen Yin Zhongbo Hu Fangwei Wang Jinkui Zhao Xiaoling Xiao | 2022 | Journal of Energy Chemistry2022,31,10: | 1 |
| 11 | An improved par- ticle swarm optimizer based on tabu detecting and local learning strategy in a shrunk search space显示文摘 | Xuewen Xia Jingnan Liu Zhongbo Hu | 2014 | Applied Soft Computing2014,23,10: | 1 |
| 12 | Highly efficient removal of tannic acid from aqueous solution by chitosan-coated attapulgite显示文摘 | Yuehua Deng Lin Wang Xiaobin Hu Benzhi Liu Zhongbo Wei Shaogui Yang Cheng Sun | 2011 | Chemical Engineering Journal2011,,: | 1 |
| 13 | An improved particle swarm optimizer based on tabu detecting and local learning strategy in a shrunk search space显示文摘 | Xuewen Xia Jingnan Liu Zhongbo Hu | 2014 | Applied Soft Computing2014,23,: | 1 |
| 14 | Three distinct optical-switching states in phase-change materials containing impurities:From physical origin to material design显示文摘Ge2 Sb2 Te5 is the most widely utilized chalcogenide phase-change material for non-volatile photonic applications,which undergoes amorphous-cubic and cubic-hexagonal phase transition under external excitations.However,the cubic-hexagonal optical contrast is negligible,only the amorphous-cubic phase transition of Ge_(2)Sb_(2)Te_(5) is available.This limits the optical switching states of traditional active displays and absorbers to two.We find that increasing structural disorder difference of cubic-hexagonal can increase optical contrast close to the level of amorphous-cubic.Therefore,an amorphous-cubichexagonal phase transition with high optical contrast is realized.Using this phase transition,we have developed display and absorber with three distinct switching states,improving the switching performance by 50%.Through the combination of first-principle calculations and experiments,we reveal that the key to increasing structural disorder difference of amorphous,cubic and hexagonal phases is to introduce small interstitial impurities(like N)in Ge2 Sb2 Te5,rather than large substitutional impurities(like Ag)previously thought.This is explained by the formation energy and lattice distortion.Based on the impurity atomic radius,interstitial site radius and formation energy,C and B are also potential suitable impurities.In addition,introducing interstitial impurities into phase-change materials with van der Waals gaps in stable phase such as GeSb_(4) Te_(7),GeSb_(2) Te_(4),Ge_(3)Sb_(2) Te_(6),Sb_(2)Te_(3) will produce high optical contrast amorphous-metastable-stable phase transition.This research not only reveals the important role of interstitial impurities in increasing the optical contrast between metastable-stable phases,but also proposes varieties of candidate matrices and impurities.This provides new phase-change materials and design methods for non-volatile optical devices with multi-switching states. | Chaobin Bi Kaicheng Xu Chaoquan Hu Ling Zhang Zhongbo Yang Shuaipeng Tao Weitao Zheng | 2021 | Journal of Materials Science & Technology2021,,16: | 1 |
| 15 | Understanding the roles of Ti on the structure and electrochemical performances of Li2Ru1-xTixO3 cathode materials for Li-ion batteries显示文摘The lattice doping has been widely used to improve the electrochemical performances of Li-rich cathode materials but the roles of the introduced foreign atoms are still not very clear.Herein,a series of Li2Ru1-xTixO3 solid solutions have been synthesized and the roles of Ti doping on the structural and electrochemical properties of Li2RuO3 have been comprehensively investigated.The Rietveld refinement exhibits that the interlayer spacing gradually shortens with increasing Ti content.This shrinkage is favorable to the layered structure stability but increases the lithium diffusion barrier.Galvanostatic measurements show that Li2Ru0.8Ti0.2O3 possesses the best cyclability with 196.9 and 196.1 m Ah g-1for charge and discharge capacity retaining after 90 cycles,respectively.Cyclic voltammetry scanning indicates that Ti dopant promotes the formation of more peroxo-or superoxo-like species but reduces the initial coulumbic efficiency.Results of electrochemical impedance spectroscopy display that Ti doping reduces the charge transfer impedance,which facilitates the lithium-ion diffusion across the electrolyteelectrode interface and improves the electronic conductivity.Li2Ru0.8Ti0.2O3exhibits the best electrochemical performance owing to the balance among all the factors discussed above.This study also offers some new insights into optimizing the electrochemical performances of Li-rich cathode materials through the lattice doping. | Hu Zhao Yanchao Shi Li Xue Yingzhi Cheng Zhongbo Hu Xiangfeng Liu | 2019 | Journal of Energy Chemistry2019,28,6: | 1 |
| 16 | Electrodeposition of bismuth onto glassy carbon electrodes from nitrate solutions显示文摘 | Minli Yang Zhongbo Hu | 2005 | Journal of Electroanalytical Chemistry2005,,583: | 1 |
| 17 | An improved particle swarm optimizer based on tabu detecting and local learning strategy in a shrunk search space显示文摘 | Xuewen Xia Jingnan Liu Zhongbo Hu | 2014 | Applied Soft Computing Journal2014,,: | 1 |
| 18 | Electrodeposition of bismuth onto glassy carbon electrodes from nitrate solutions显示文摘 | Yang Minli Hu Zhongbo | 2005 | Journal of Electroanalytical Chemistry2005,583,: | 1 |
| 19 | Crystal structures and thermal expansion properties of Y_(2-x)Er_xMo_4O_(15) (x=0.0-2.0) solid solutions显示文摘A new series of rare earth compounds,Y2-xErxMo4O15 (x=0.0-2.0),were synthesized and their structures were determined by powder X-ray diffraction (XRD). Rietveld analysis of XRD patterns reveals that the compounds of this series crystallize in monoclinic system with space group P21/c. The lattice parameters a,b,c,β and the unit cell volume V de-crease linearly with increasing Er content. The thermal expansion properties of these compounds were studied under high-temperature XRD. Positive thermal expansions of compounds Y2-xErxMo4O15 are found to be anisotropic along the three crystallographic directions where a and c axes expand while b axis contracts in the whole temperature range. By analysis of data,the expansion of weak band Mo2-O14 with rising temperature should be responsible for positive thermal expansion. | YU Zhouxiang CHEN Dongfeng WANG Hui PENG Jie CHENG Yingzhi WU Meimei HU Zhongbo | 2007 | Rare Metals2007,26,5: | 0 |
| 20 | Effects of combined substitution of Dy and Mo or Si on the crystal structures and magnetic properties of Nd_(1-y)Dy_yFe_(11-x)TiM_x(M=Mo,Si) compounds显示文摘A series of Nd1-yDyyFe11-xTiMx(M=Mo,Si) alloys have been prepared by arc melting and studied by X-ray diffraction and neutron diffraction.All samples are found to crystallize in the ThMn12-type structure.The lattice parameters a and c and unit cell volume V of Nd0.5Dy0.5Fe11-xTiMox alloys increase linearly with increasing content of Mo(x),while the lattice parameters a and c and unit cell volume V of Nd0.5Dy0.5Fe11-xTiSix alloys decrease linearly with increasing content of Si(x).In NdyDy1-yFe11-xTiMx(M=Mo,Si) compounds,Ti and Mo atoms preferentially occupy the 8i sites and Si atoms preferentially occupy the 8j and 8f sites.Magnetic measurements show that the substitution of Fe by either Mo or Si leads to a decrease in the Curie temperature. | LI XiangJun,ZHENG Na,HU ZhongBo & YUAN ZhuoBin College of Chemistry and Chemical Engineering,Graduate University of Chinese Academy of Sciences,Beijing 100049,China | 2009 | Science China Chemistry2009,52,8: | 0 |