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| 1 | Ab initio study of the effects of Ag/Mn doping on the electronic structure of LiFePO_4显示文摘Based on density functional theory (DFT) of the first-principle for the cathode materials of lithium ion battery, the electronic structures of Li(Fe1-xMex)PO4 (Me = Ag/Mn, x = 0―0.40) are calculated by plane wave pseudo-potential method using Cambridge serial total energy package (CASTEP) program. The calculated results show that the Fermi level of mixed atoms Fe1-xAgx moves into its conduction bands (CBs) due to the Ag doping. The Li(Fe1-xAgx)PO4 system displays the periodic direct semiconductor characteristic with the increase of Ag-doped concentration. However, for Fe1-xMnx mixed atoms, the Fermi level is pined at the bottom of conduction bands (CBs), which is ascribed to the interaction be-tween Mn(3d) electrons and Fe(4s) electrons. The intensity of the partial density of states (PDOS) near the bottom of CBs becomes stronger with the increase of Mn-doped concentration. The Fermi energy of the Li(Fe1-xMnx)PO4 reaches maximum at x = 0.25, which is consistent with the experimental value of x = 0.20. The whole conduction property of Mn-doped LiFePO4 is superior to that of Ag-doped LiFePO4 cathode material, but the structural stability is reverse. | HOU XianHua HU SheJun LI WeiShan ZHAO LingZhi RU Qiang YU HongWer HUANG ZhaoWen | 2008 | Chinese Science Bulletin2008,53,11: | 9 |
| 2 | 大兴安岭呼中林区狍冬季卧息生境的选择显示文摘大兴安岭呼中林区狍冬季卧息生境的选择关键词狍子,卧息点选择,大兴安岭WINTERRESTINGSITESELECTIONBYROEDEERATHUZHONG,DAXINGANLINGMOUNTAINSNORTHEASTERNCHINA¥JiangZh... | Jiang Zhaowen Xu Li(Institute of Natural Resources,Heilongjang Academy of Sciences Harbin 150040)Wang Yongqing(Daxinganling District Forestry Resource and Policy Administrative Bureau)Jiao Peirong Liu Hongfa(Resouce Management Section,Huzhong,Daxingonling | 1996 | Zoological Research1996,17,2: | 8 |
| 3 | Dead lithium phase investigation of Sn-Zn alloy as anode materials for lithium ion battery显示文摘In this work, based on First-principle plane wave pseudo-potential method, we have carried out an in-depth study on the possible dead lithium phase of Sn-Zn alloy as anode materials for lithium ion batteries. Through investigation, we found that the phases LixSn4Zn4(x = 2, 4, 6, 8) contributed to re-versible capacity, while the phases LixSn4Zn8-(x-4)(x = 4.74, 7.72) led to capacity loss due to high forma-tion energy, namely, they were the dead lithium phases during the charge/discharge process. And we come up with a new idea that stable lithium alloy phase with high lithiation formation energy (dead lithium phase) can also result in high loss of active lithium ion, besides the traditional expression that the formation of solid electrolyte interface film leads to high capacity loss. | HUANG ZhaoWen HU SheJun HOU XianHua RU Qiang YU HongWen ZHAO LingZhi LI WeiShan | 2009 | Chinese Science Bulletin2009,54,6: | 6 |
| 4 | Frequency Modulated Radar Waveform based on Sampled Chaotic Series显示文摘 | YANG Jin NIE Lei QIU Zhaokun LI Xiang ZHUANG Zhaowen | 2013 | Chinese Journal of Electronics2013,22,2: | 4 |
| 5 | Regularization method with two parameters for nonlinear ill-posed problems显示文摘This paper is devoted to the regularization of a class of nonlinear ill-posed problems in Banach spaces. The operators involved are multi-valued and the data are assumed to be known approximately. Under the assumption that the original problem is solvable, a strongly convergent approximation procedure is designed by means of the Tikhonov regularization method with two pa- rameters. | LIU ZhenHai LI Jing LI ZhaoWen | 2008 | Science China Mathematics2008,51,1: | 4 |
| 6 | Size and support effects for CO oxidation on supported Pd catalysts显示文摘Supporting Pd catalysts characterized significant different size distribution were obtained using PdCl2,[Pd(NH3)4](NO3)2 and Pd(acac)2 as precursors.High-resolution transmission electron microscopy(TEM),X-ray diffraction(XRD),in-situ Fourier transform infrared spectroscopy(FTIR) and Raman spectroscopy were used to examine the dispersion of Pd.Catalytic performance measurements show that the activities for CO oxidation increase as the Pd particle size decreases and the O2/CO ratio increases.The activities under oxygen rich conditions are significantly higher than those at near the stoichiometric conditions.Pd on TiO2 prepared by the Pd(acac)2 precursor is highly dispersed,leading to a considerable activity for CO oxidation at near room temperature.CO oxidation on the 1 wt% Pd/TiO2 and under an O2/CO ratio of 1 characterized an apparent activation energy of 36.7 kJ/mol,which is closed to those reported for CO oxidation on the supported Au catalysts.The present work demonstrates a high catalytic activity of highly dispersed noble metals,and suggests a promising approach of using noble metals as catalysts with exceeding high efficiency. | WANG ZhaoWen,LI Bin,CHEN MingShu,WENG WeiZheng & WAN HuiLin State Key Laboratory of Physical Chemistry of Solid Surfaces National Engineering Laboratory for Green Chemical Productions of Alcohols-Ethers-Esters Department of Chemistry,College of Chemistry and Chemical Engineering,Xiamen University,Xiamen 361005,China | 2010 | Science China Chemistry2010,53,9: | 2 |
| 7 | High-speed Target ISAR Imaging via Compressed Sensing Based on Sparsity in Fractional Fourier Domain显示文摘 | LIU Jihong LI Xiang GAO Xunzhang ZHUANG Zhaowen | 2013 | Chinese Journal of Electronics2013,22,3: | 2 |
| 8 | A New Study on Bubble Behavior on Carbon Anode in Aluminum Electrolysis 显示文摘 | Bingliang Gao Haitao Li Zhaowen Wang | 2005 | Light Metals2005,,: | 1 |
| 9 | CO2 sequestration in depleted oil and gas reservoirs-caprock characterization and storage capacity显示文摘 | Zhaowen Li Mingzhe Dong Shuliang Li Sam Huang | 2006 | Energy Conversion and Management2006,47,: | 1 |
| 10 | Experimental study of diffusive tortuosity of liquid-saturated consolidated porous media显示文摘 | Li Zhaowen Dong Mingzhe | 2010 | Industrial and Engineering Chemistry Research2010,49,13: | 1 |
| 11 | A new method for gas effective diffusion coefficient measurement in water-saturated porous rocks under high pressures显示文摘 | Li Zhaowen Dong Mingzhe Li Shuliang Dai Liming | 2006 | Journal of Porous Media2006,9,5: | 1 |
| 12 | Shading during the grain filling period increases 2-acetyl-1-pyrroline content in fragrant rice显示文摘 | Zhaowen Mo Wu Li Shenggang Pan Timothy L Fitzgerald Feng Xiao Yongjian Tang Yilei Wang Meiyang Duan Hua Tian Xiangru Tang | 2015 | Rice2015,,1: | 1 |
| 13 | Densities and solubilities for binary systems of carbon dioxide + water and carbon dioxide+brine at 59℃ and pressures to 29 MPa 显示文摘 | LI Zhaowen DONG Mingzhe LI Shuliang | 2004 | J Chem Eng Data2004,49,4: | 1 |
| 14 | CO2 sequestration in depleted oil and gas reservoirs-caprock characterization and storage capacity 显示文摘 | Li Zhaowen Dong Mingzhe | 2006 | Energy Conversion and Management2006,47,1: | 1 |
| 15 | Certain covering-maps and k-networks, and related matters显示文摘 | TANAKA Y LI Zhaowen | 2003 | Top Proc2003,27,1: | 1 |
| 16 | Antenna geom- etry conditions for MIMO radar with uncoupled direction esti- mation显示文摘 | Chena Haowen Li Xiang Zhuang Zhaowen | 2012 | IEEE Transactions on Antennas and Propaga- tion2012,60,7: | 1 |
| 17 | A New Study on Bubble Behavior on Carbon Anode in Aluminum Electrolysis 显示文摘 | Bingliang Gao Haitao Li Zhaowen Wang | 2005 | Light Metals2005,,: | 1 |
| 18 | Study on Bubble Behavior on Anode in Aluminum Electrolysis- Part I 显示文摘 | Zhaowen Wang Bingliang Gao Haitao Li | 2006 | Light Metals2006,,: | 1 |
| 19 | Oscillation results for higher even order nonlinear () functional differential equations of neutral type显示文摘 | Li Lianzhong Meng Fanwei Zheng Zhaowen | | 0,,1: | 1 |
| 20 | Densities and solubilities for binary systems of carbon dioxide + water and carbon dioxide + brine at 59℃ and pressures to 29 MPa显示文摘 | Li Zhaowen Dong Mingzhe Li Shuliang | 2004 | J Chem Eng Data2004,49,4: | 1 |