|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Application of Fe_2O_3/Al_2O_3 Composite Particles as Oxygen Carrier of Chemical Looping Combustion显示文摘碳的混合物的化学循环燃烧(CLC ) 被建议了,在过去的十年,作为为没有额外的精力惩罚的费用的 CO2 俘获的一个有效方法。这种技术作为从燃烧空气把氧转移到燃料的载氧体包含金属氧化物的使用。燃烧在一个二拍子的圆舞过程被执行:在燃料反应堆,燃料被金属氧化物氧化,并且在空气反应堆,减少的金属被氧化回到原来的阶段。载氧体在这篇文章被调查了的氧化铁的使用。粒子 80 wt% Fe2O3 创作了,和象文件夹的 Al2O3,被浸渍法准备了。X 射线衍射(XRD ) 分析表明 Fe2O3 不在多周期以后与 Al2O3 文件夹交往。载氧体粒子的反应在热 gravimetrical 分析(TGA ) 的二十周期的减小氧化测试被学习了反应堆。在插头气体的部件被分析了。大约 85% CEU 在大多数减小时期期间变换成 CO2 和 H2O,这被观察了。载氧体把相当高反应放在二十周期的反应。在开始的二十个反应周期,反应速率与周期的反应增加的数字变得稍微更高,它被扫描电子显微检查法(SEM ) 证实测试结果。SEM 分析表明在粒子内的孔径大小被热应力在反应期间扩大了,它为进粒子的气体的反应物的散开是有利的。试验性的结果建议 Fe2O3/Al2O3 载氧体是一个 CLC 系统的一个有希望的候选人。给词调音:化学循环燃烧;氧化铁;载氧体;CO2 | Fang He Hua Wang Yongnian Dai | 2007 | Journal of Natural Gas Chemistry2007，16，2： | 11 |
| 2 | Kinetics of iron removal from metallurgical grade silicon with pressure leaching显示文摘In this paper, the kinetics of pressure leaching for purification of metallurgical grade silicon with hydrochloric acid was investigated. The effects of particle size, temperature, total pressure, and concentration of hydrochloric acid on the kinetics and mechanism of iron removal were studied. It was found that the reaction kinetic model followed the shrinking core model, and the apparent activation energy of the leaching reaction was 46.908 kJ/mol. And the apparent reaction order of iron removal with pressure leaching was 0.899. The kinetic equation was ob-tained and the mathematical model of iron removal from metallurgical grade silicon (MG-Si) was given as follows: 1-2/3x-(1-x)2/3=exp(5.1654-4811.4591/T+1.287lnp+1.046ln[C])·t/r02· The values calculated from the equation were consistent with the experimental results. | YU Zhanliang XIE Keqiang MA Wenhui ZHOU Yang XIE Gang DAI Yongnian | 2011 | Rare Metals2011，30，6： | 9 |
| 3 | Thermal stability of LiFePO_4/C-LiMn_2O_4 blended cathode materials显示文摘Safety is important to lithium ion battery materials. The thermal stability of LiFePO_4/C-LiMn_2O_4 blended cathode materials is characterized by using TG, XRD, and SEM etc. The results show that LiFePO_4/C-LiMn_2O_4 possesses a worse thermal stability than pure spinel LiMn_2O_4 and pure olivine LiFePO_4/C. When LiFePO_4/C-LiMn_2O_4 blended cathode materials are sintered at 500°C under Ar atmosphere, the sintered cathode materials emit O_2, and appear impurity phases(Li_3PO_4, Fe_2O_3, Mn_3O_4). It is deduced that some chemical reactions take place between different materials, which leads to a worse discharge specific capacity. LiFePO_4/C-LiMn_2O_4 blended cathode materials, therefore, need to be managed and controlled strictly for the sake of thermal stability and safety. | DU YuanChao HUANG XiaoPeng ZHANG KeYu LIANG Feng LI QiuXia YAO YaoChun DAI YongNian | 2017 | Science China(Technological Sciences)2017，60，1： | 5 |
| 4 | THE SEPARATION OF Pb-Sb ALLOYS BY VACUUM DISTILLATION显示文摘This paper summarizes the research results of vacuum distillation of Pb-Sb alloy and crude antimony.In our study,we have found the basic law which states that in Pb-Sb phase diagrams,the part which is rich in lead can be used to guide the purification of lead by distillation,while the part rich in antimony can be used to guide the purification of Sb.where the compositional point C is the azeotropic mixture.The technical experi-mental results at temperatures between 7OO-85OC are coincident with those of theorical study.The expanding experiment at the 100kg scale produced satisfactory results. | Dai Yongnian Zhang Guojing | 1991 | Transactions of Nonferrous Metals Society of China1991，1，1： | 2 |
| 5 | Preparation of titanium carbide pow- ders by carbothermal reduction of titania/charcoal at vacuum condi- tion 显示文摘 | Wei Sen Hongyan Sun Bin Yang Baoqiang Xu Wenhui Ma Daehun Liu Yongnian Dai | 2010 | International Journal of Refractory Metals and Hard Mate- rials2010，28，5： | 1 |
| 6 | Purification of indium bu vacuum distillation and its analysis显示文摘 | Li Dongsheng Dai yongnian Yang Bin | 2013 | J Central South University of Technology2013，20，4： | 1 |
| 7 | Synthesis and characterization of LiCo x Mn2?x O4 cathode materials显示文摘 | Yaochun Yao Ph D Yongnian Dai Bin Yang Wenhui Ma Takayuki Watanabe | 2007 | Journal of Wuhan University of Technology - Mater Sci Ed2007，，2： | 1 |
| 8 | Nonflame combustion technology (NFCT) using thermal cyclic carrier of molten salt and thermodynamic analysis显示文摘 | He Fang Wang Hua Dai Yongnian | 2002 | Journal of Chinese Rare Earth2002，20，： | 1 |
| 9 | Boron removal from metallurgical grade silicon using a CaO–Li 2 O–SiO 2 molten slag refining technique显示文摘 | Jijun Wu Wenhui Ma Binjie Jia Bin Yang Dachun Liu Yongnian Dai | 2012 | Journal of Non-Crystalline Solids2012，，23： | 1 |
| 10 | Effect of cy- cles and ion-exchange on the purification of lithium carbonate 显示文摘 | Wu Jian Yao Yaochun Dai Yongnian | 2012 | Adv Mater Res2012，443，444： | 1 |
| 11 | Synthesis of LaGaO3-based electrolyte material and its compatibility with novel electrode materials显示文摘 | Liu Ronghui Ma Wenhui Wang Hua Yang Bin Dai Yongnian | 2005 | Journal of Rare Earth2005，23，： | 1 |
| 12 | Highly enhanced luminescence of Tb 3+ -activated gadolinium oxysulfide phosphor by doping with Zn 2+ ions显示文摘 | Fei Wang Bin Yang Jinchao Zhang Yongnian Dai Wenhui Ma | 2009 | Journal of Luminescence2009，，3： | 1 |
| 13 | Synthesis of LaGaO3-based electrolyte material and its compatibility with novel electrode materials 显示文摘 | Liu Ronghui Ma Wenhui Wang Hua Dai Yongnian | 2005 | Journal of Rare Earths2005，23，： | 1 |
| 14 | Study on volatilization rate of silicon in multicrystalline silicon preparation from metallurgical grade silicon显示文摘 | Kuixian Wei Wenhui Ma Bin Yang Dachun Liu Yongnian Dai Kazuki Morita | 2010 | Vacuum2010，，7： | 1 |
| 15 | Influence of synergistic effect of LiNi_(0.8)Co_(0.15)Al_(0.05)O_(2)@Cr_(2)O_(5)composite on the electrochemical properties显示文摘LiNi_(0.8)Co_(0.15)Al_(0.05)O_(2)@Cr_(2)O_(5)composite electrode combines the high rate-capability characteristics of NCA with the stability of Cr_(2)O_(5),playing a synergistic role in improving the cyclic stability,initial discharge capacity and the security of low cut-off voltage(2.0 V).When the mass ratio of Cr_(2)O_(5)in NCA is 45%(mass),the capacity retention rate increases from 58.5% without Cr_(2)O_(5)to 69.3% in the range of 2.0-4.3 V.The initial discharge capacity of NCA@Cr_(2)O_(5)composite material is 211.4 mA·h·g^(-1),its first coulombic efficiency is 94.2%,and the charging capacity remains approximately constant when mixed with 15%(mass)Cr_(2)O_(5).The reason for the improvement of the initial charge-discharge efficiency(ICDE)was explained.Impedance and cyclic voltammetry analysis reveal more detailed reasons of the observed improvements.Compared with NCA cathode material,the NCA@Cr_(2)O_(5)composite material can provide not only additional stable sites and channels for Li^(+)insertion/extraction to make up for the loss of active Li^(+)sites and prevent the accumulation of Li+in the circulation process,but also protect the NCA electrode from the corrosion of the electrolyte decomposition by the Cr_(2)O_(5)nanoparticles adhering to NCA interface. | Yunke Wang Yongjia Li Yenan Zhang Guozheng Zha Feng Liang Yongnian Dai Yaochun Yao | 2021 | Chinese Journal of Chemical Engineering2021，34，5： | 1 |
| 16 | Activated carbon prepared from waste tire pyrolysis carbon black via CO_(2)/KOH activation used as supercapacitor electrode显示文摘As the quantity of waste tires increases,more pyrolysis carbon black(CBp),a type of low value-added carbon black,is being produced.However,the application of CBp has been limited.Therefore,it is necessary to identify and expand applications of CBp.This work focuses on the preparation of activated carbon(AC)from CBp using the physicochemical activation of carbon dioxide(CO_(2))and potassium hydroxide(KOH).Thereafter,AC is applied to the electrode of the electrical double-layer capacitor(EDLC).The AC prepared by CO_(2)/KOH activation exhibited a hierarchical pore structure.The specific surface area increased from 415 to 733 m^(2)g^(−1),and in combination with low ash content of 1.51%,ensured abundant ion diffusion channels and active sites to store charge.The EDLC comprising the AC(AC-2)electrode prepared by excitation of CO_(2)(300 sccm)and KOH had a reasonable gravimetric specific capacitance of 192 F g^(−1)at 0.5 A g^(−1),and exhibited a good rate capability of 73%at 50 A g^(−1)in a three-electrode system.Moreover,the EDLC device comprising the AC-2 electrode delivered excellent cycling stability(capacitance retention of 106%after 10000 cycles at 2 A g^(−1)in a two-electrode system).Furthermore,a symmetric supercapacitor based on an AC electrode that exhibits a supreme energy density of 4.7 Wh kg^(−1)and a maximum power density of 6362.6 W kg^(−1)is demonstrated. | HOU ShengPing ZHANG Da XIE ZhiPeng KANG Yao TANG ZhengGang DAI YongNian LEI Yong CHEN Jian LIANG Feng | 2022 | Science China(Technological Sciences)2022，65，10： | 1 |
| 17 | Integrated purification of gadolinium and preparation of Gd2O_(3) nanoparticles by DC arc plasma显示文摘The rare-earth metal Gd plays an important role in the energy,information,and national defence fields due to its special optical,electrical,magnetic,and catalytic properties.In this study,Gd was purified by direct current(DC)arc plasma,and Gd2O_(3) nanoparticles were prepared via an integration method using purified Gd.The effects of arc current,melting time,gas pressure,and atmosphere on the purification of Gd by DC arc plasma were investigated.With an increase in the arc current and melting time,the rate of removal of impurities from Gd enhances.Moreover,Gd melting was conducted by H_(2)-Ar arc plasma,which improves the impurity removal rate by increasing the H_(2) content.High thermal conductivity and chemical activity of the activated H atoms generated by the dissociation of H_(2) are the main reasons for the significant improvement in the impurity removal rate.The mechanism of Gd purification was analysed based on the above-mentioned experimental results.The as-synthesised Gd2 O_(3) nanoparticles have a uniform spherical structure(average diameter of 32.7 nm),appropriate dispersibility,and high purity.This study provides a new strategy for the integrated purification of metals and preparation of metal/metal-based nanomaterials by DC arc plasma. | Zhenggang Tang Minjie Hou Xin He Kai Ye Da Zhang Zhipeng Xie Yongnian Dai Feng Liang | 2021 | Journal of Rare Earths2021，39，12： | 1 |
| 18 | Effect of Zn doping on the performance of LiMnPO 4 cathode for lithium ion batteries显示文摘 | Haisheng Fang Huihua Yi Chenglin Hu Bin Yang Yaochun Yao Wenhui Ma Yongnian Dai | 2012 | Electrochimica Acta2012，，： | 1 |
| 19 | Removal of iron and aluminum impurities from metallurgical grade silicon with hydrometallurgical silicon with hydrometallurgical route 显示文摘 | Yu Zhanliang Ma Wenhui Dai Yongnian | 2007 | Transactions of Nonferrous Metals Society of China2007，17，： | 1 |
| 20 | Purification of Indium by Vacuum Distillation and its Analysis显示文摘 | Li Dongsheng Dai Yongnian Yang Bin | 2013 | Journal of central South University of Technology2013，20，： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员