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Simple Preparation of LaPO4:ce, Tb Phosphors by an Ionic--Liquid--Driven Supported Liquid Membrane System

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Simple Preparation of LaPO4:Ce, Tb Phosphors by an Ionic--Li...

稀土元素镧铈钇应用研究研讨会暨广东省稀土产业技术联盟成立大会

作者： Jianguo Li Hongying Dong Fan Yang Liangcheng Sun Zhigang Zhao Ruixi Bai Hao zhang School of Chemical Engineering Inner Mongolia University of Technology Xiamen Institute of Rare Earth Materials Chinese Academy of Sciences Key Laboratory of Design and Assembly of Functional Nanostructures Fujian Provincial Key Laboratory of Nanomaterials Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Baotou Research Institute of Rare Earths

In this work, LaPO:ce, Tb phosphors were prepared by firing a LaPO:ce, Tb precipitate using an ionic-liquid-driven supported liquid membrane system. The entire system consisted of three parts: a mixed rare earth ion supply phase, a phosphate supply phase, and an ionic-liquid-driven supporting liquid membrane phase. This method showed the advantages of a high flux, high efficiency, and more controllable reaction process. The release rate of POfrom the liquid film under different types of ionic liquid, the ratio of the rare earth ions in the precursor mixture, and the structure, morphology, and photoluminescence properties of LaPO:ce, Tb were investigated by inductively coupled plasma-atomic emission spectroscopy, X-ray diffraction, Raman spectra, scanning electron microscopy, and photoluminescence emission spectra methods. The results showed that a pure phase of lanthanum orthophosphate with a monoclinic structure can be formed. Due to differences in the anions in the rare earth supply phase, the prepared phosphors showed micro-spherical(when using rare earth sulfate as the raw material) and nanoscale stone-shape(when using rare earth nitrate as the raw material) morphologies. Moreover, the phosphors prepared by this method had good luminescent properties, reaching a maximum emission intensity under 277 nm excitation with a predominant green emission at 543 nm which corresponded to the 5 D4-7 F5 transition of Tb.

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The effect of MM content in the magnetic(NdMM)FeB casting strips on microstructure and macroscopic properties

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The effect of MM content in the magnetic(NdMM)FeB casting st...

2016中国功能新材料学术论坛

作者： YU Xiaoqiang ZHU Minggang YUE Ming LIU Weiqiang HAN Rui zhang Jiuxing LI Wei College of Materials Science and Engineering Beijing University of Technology Division of Functional Materials Central Iron & Steel Research Institute

The MM substituted[NdMM]FeB casting strips were prepared with induction melting and strip casting *** saturation magnetization(Ms) and saturation magnetic field(Hs) decreased with the MM content(x).Microstructure and properties of magnetic(NdMM)FeB casting strips could be influenced by the MM *** the more MM substitution in(NdMM)FeB casting strips,XRD analysis showed that the main phase MM2Fe14)B was more difficult to derive and La2O3 and ceFe2 phases coexisted in MMFeB(when x=1) casting *** x was more than 0.6,the saturation magnetization(Ms) decreased ***,the saturation magnetic field(Hs) dropped *** intrinsic coercivity of sintered magnets made of these casting strips would come down quickly as well,which is due to the distribution of La/ce/Pr/Nd element in the different regions.

关键词： MM casting strip microstructure MM2Fe14B saturation magnetization

An Integrated Device based on Dye-sensitized Solar cells and Li-ion Battery

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An Integrated Device based on Dye-sensitized Solar Cells and...

第二届新型太阳能电池学术研讨会

作者：云斯宁 Taihong zhang Yanfang Liu Xiao Zhou Yuzhi Hou Wen Fang 张培新西安建筑科技大学材料与矿资学院功能材料研究所深圳大学化学与化工学院

The new generation battery which can harvest energy from sunlight and chemically store energy that make energy storage and transportation more flexible, are of great significance for energy recycling and society sustainable development. We design and synthesize novel transition metal oxide nitride by situ self-assembly and hydrothermal/solvothermal process, which were used as counter electrode(ce) in dye-sensitized solar cells(DSSC) and anode materials of Li-ion battery(LIB), respectively, assembling into an integrated power pack of DSSC and LIB via a back-to-back pattern. The effects of synthesis conditions, surface morphologies, surface composition, grain size, crystalline defects, doping levels and electronic structure on the electrochemical performance of these hybrid materials in an integrated power pack were systematically investigated. We explore a new technical route to realize the morphology-controllable preparation and the optimized performance of low-cost hybrid materials used in the integrated devices, which will promote the rapid development of new concept integrated devices that coupling energy harvesting, energy conversion and energy storage techniques.

关键词： Energy conversion and storage Integrated device Solar cells Lithium ion battery

西准噶尔塔尔巴哈台-谢米斯台地区火山热液型铜矿床(点)地质及含矿火山岩年代学、地球化学特征

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岩石学报 2015年第8期31卷 2259-2276页

作者：张若飞袁峰周涛发邓宇峰张达玉许超赵冰冰合肥工业大学资源与环境工程学院合肥230009

西准噶尔塔尔巴哈台-谢米斯台地区研究和找矿勘探工作十分薄弱,近年来随着谢米斯台铜矿的发现,本项目组陆续发现了喀因德、乌兰浩特、阿依德、巴汗等铜矿点,指示该区具有与火山热液活动有关的铜成矿作用有的潜力。本文对这些矿床(点)开... 详细信息

西准噶尔塔尔巴哈台-谢米斯台地区研究和找矿勘探工作十分薄弱,近年来随着谢米斯台铜矿的发现,本项目组陆续发现了喀因德、乌兰浩特、阿依德、巴汗等铜矿点,指示该区具有与火山热液活动有关的铜成矿作用有的潜力。本文对这些矿床(点)开展了地质特征、年代学和地球化学研究显示,区内发育的阿尔木强、谢米斯台铜矿床以及喀因德、乌兰浩特、阿依德、巴汗等铜矿点与火山岩地层密切相关,矿化主要表现为黄铁矿化、孔雀石化,发育绿帘石化、绿泥石化、硅化、碳酸岩化等蚀变,具有火山热液型铜矿特点。锆石LA-ICP-MS U-Pb测年获得喀因德铜矿点火山岩年龄为455.1±5.4Ma,乌兰浩特铜矿点火山岩年龄为428.6±4.6Ma,阿依德铜矿点火山岩年龄为428.8±7.2Ma,谢米斯台铜矿床火山岩年龄为424.3±4.3Ma,阿尔木强铜矿床火山岩年龄为426.7Ma,巴汗铜矿点火山岩年龄为411.7±4.7Ma,可分为晚奥陶世、中志留世、早泥盆世三个阶段,以中志留世为主。地球化学特征显示晚奥陶世、中志留世、早泥盆世三个阶段的火山岩均形成于岛弧环境;且具有类似的岩浆源区和演化过程;岩浆在上升侵位过程中没有明显的受到外来物质混染。综合地质、年代学和地球化学特征显示,塔尔巴哈台-谢米斯台地区与火山热液有关的铜矿床(点)主要受控于构造背景、地层组合、岩石类型、蚀变、控矿构造等因素,其中中志留世中基性火山岩、与火山机构相关的深部可能存在的次火山岩或浅成侵入岩分布区具有较好的找矿潜力。

关键词：火山热液锆石U-Pb测年地球化学塔尔巴哈台-谢米斯台西准噶尔

Low-cost Cr doped Pt3Ni alloy supported on carbon nanofibers composites counter electrode for efficient dye-sensitized solar cells

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Low-cost Cr doped Pt3Ni alloy supported on carbon nanofibers...

第三届新型太阳能电池学术研讨会

作者： Ling Li Junying Xiao Mingkun Wang Xichuan Yang Wenming zhang Xiaowei Li Mingxing Wu Hebei Key Lab of Optic-electronic Information and Materials College of Physics Science and TechnologyHebei University State Key Laboratory of Fine Chemicals DUT-KTH Joint Education and Research Center on Molecular DevicesDalian University of Technology (DUT) College of Chemistry and Material Science Hebei Normal University

PtNi alloy supported by carbon nanofibers(CNF) composites(PtNi/CNF) synthesized by a simple solvothermal process were introduced into dye-sensitized solar cells(DSCs) as counter electrode(ce) for the first time,and the DSCs based on PtNi/CNF ce obtained a power conversion efficiency(Pce) of 8.85%.To enhance the catalytic activity of PtNi/CNF composites,transition metal chrome(Cr) was doped in PtNi/CNF to synthesized the composites of Cr-PtNi/CNF using the same *** to high electrocatalytic activity and rapid charge transfer ability,the Pce of the DSCs employing Cr-PtNi/CNF as ce increased to 9.25%,much higher than that of Pt ce(7.35%) measured in the same *** impressive results along with low cost and simple synthesis process demonstrated transition metal doping was a promising method to produce substitutes for Pt to reduce the cost and increase the Pce of DSCs.

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铈对1Cr17不锈钢夹杂物的影响

稀土 2010年第2期31卷 48-50,54页

作者：徐掌印张峰姜银举内蒙古科技大学材料与冶金学院内蒙古包头014010

采用金相显微镜、扫描电镜等分析测试手段研究了ce对1Cr17不锈钢的净化作用及其夹杂物的形态和颗粒直径的影响。结果表明,ce可使1Cr17钢中的夹杂物的含量显著降低,夹杂物的形态变小,高温机械性能提高。

关键词：铈 1Cr17不锈钢净化夹杂物

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滇中地区云南松林分胸径生长模型

东北林业大学学报 2018年第3期46卷 1-6页

作者：罗恒春张超西南林业大学昆明650224

应用云南省五期森林资源连续清查样地数据,用非线性回归方法构建云南松林分生长模型,并分析各环境因子对云南松林分胸径的综合影响。结果表明:(1)林分径阶株数随胸径的增大整体呈倒"J"型分布,林分直径分布曲线向左偏斜程度较大,且呈低... 详细信息

应用云南省五期森林资源连续清查样地数据,用非线性回归方法构建云南松林分生长模型,并分析各环境因子对云南松林分胸径的综合影响。结果表明:(1)林分径阶株数随胸径的增大整体呈倒"J"型分布,林分直径分布曲线向左偏斜程度较大,且呈低峰态分布,分布相对离散;(2)林分胸径最优生长模型为坎派兹模型,决定系数(R2)和均方根误差(RMSE)分别为0.648和3.384,预估精度(P)为96.53%;(3)林龄、地位级指数、风速、郁闭度和相对湿度等是对林分平均胸径影响较为重要的因子。

关键词：云南松林分平均胸径生长模型滇中地区

The role of crustal contamination in the formation of Ni-Cu sulfide deposits in Eastern Tianshan,Xinjiang,Northwest China:Evidence from trace element geochemistry,Re-Os,Sr-Nd,zircon Hf-O,and sulfur isotopes

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The role of crustal contamination in the formation of Ni-Cu ...

中国科学院地质与地球物理研究所2012年度（第12届）学术年会

作者： Dong-Mei Tang Ke-zhang Qin He Sun Ben-Xun Su Qing-Hua Xiao Key Laboratory of Mineral Resources Institute of Geology and GeophysicsChinese Academy of Sciences Institute of Mineral Resources Research China Metallurgical Geology Bureau

Tulaergen,Xiangshan,***,and Baishiquan magmatic Ni-Cu sulfide deposits,which are all located in the eastern part of the central Asian Orogenic Belt,and associated with small mafic-ultramafic intrusions with high-grade Cu and Ni orebodies have similar ages of *** magma sources are MORB-like and OIB-like depleted *** calculations of Sr-Nd and zircon Hf isotopic data show that about 10-15% of oceanic slab components are added into the source of Baishiquan and Tianyu intrusions,but only less than 5% are in the three other *** higher degree of subduction metasomatism in the Baishiquan and Tianyu magma sources is likely Lhe resulL of the Paleozoic multiple-stage ***,the relative enrichment of LILE,depletion of HFSE,and lower ce/Pb ratios indicate that these intrusions experienced crustal *** effects of crustal contamination are also identified in the magmatic sulfide deposits by the higher zircon δO,higher sulfide γOs,and δS values *** propose a two-stage crustal contamination model of the Tulaergen,Xiangshan,Tianyu,and Baishiquan ***,the Huangshan intrusion,which has the highest degree of crustal contamination, likely experienced only single-stage upper crustal contamination(～14.2% ).The addition of crustal S appears to be directly related to triggering S saturation in these *** to a simple S isotopic modeling calculation,11% ,2.9% ,1.2% and 2.1% of the crustal sulfur addition into the parental magma would be required to form the Tianyu,Baishiquan,Xiangshan,and Tulaergen deposits, respectively.

关键词： Eastern Tianshan Ni-Cu sulfide deposits Re-Os and S geochemistry Source characteristics Crustal contamination

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双掺钾钠铌酸锶钡晶体光学特性研究

红外与毫米波学报 2001年第1期20卷 47-49页

作者：张曰理阳生红李辉遒莫党中山大学凝聚态物理研究所物理系广东广州510275

成功地生长、制备出了双掺 (Cu,ce)钾钠铌酸锶钡晶体样品 .测量了双掺 (Cu,ce)钾钠铌酸锶钡晶体在红光波段的二波耦合特性及其光诱导吸收变化 .实验结果显示 ,双掺 (Cu,ce)钾钠铌酸锶钡晶体在红光波段具有好的光折变性能 ,其红光波段的... 详细信息

成功地生长、制备出了双掺 (Cu,ce)钾钠铌酸锶钡晶体样品 .测量了双掺 (Cu,ce)钾钠铌酸锶钡晶体在红光波段的二波耦合特性及其光诱导吸收变化 .实验结果显示 ,双掺 (Cu,ce)钾钠铌酸锶钡晶体在红光波段具有好的光折变性能 ,其红光波段的二波耦合增益可达 10 cm- 1 ;且存在着较强的光诱导吸收现象 ,其光诱导吸收变化明显地依赖于泵浦束光强和探测束光偏振 ,探测束偏振方向平行晶体 c轴时的光诱导吸收系数和探测束偏振方向垂直于晶体 c轴时的光诱导吸收系数分别达 0 .5 3cm- 1 和 0 .2 6 cm- 1 。

关键词：钾钠铌酸锶钡光诱导吸收铜铈双掺杂二波耦合光学特性光折变晶体材料