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and cerium metals by fused salt electrolysis of their anhydrous chloride in molten media such as LiCl-KCl, NaCl-KCl, KCl, NaCl, and LiCl and to characterize the metal deposit by X-ray diffraction, energy...Current efficiency in electro-winning of lanthanum and cerium metals from molten chloride electrolytesDeepak Kumar Sahoo1,Harvinderpal Singh1,Nagaiyar Krishnamurthy21. Rare Earths Development Section......
Electroreduction of Ho3+ on Nickel Cathode in Molten KCl-HoCl3 YANG Qi-qin1,SU Yu-zhi2,LIU Guan-kun1 (1.Department of Chemistry, Zhongshan University, Guangzhou 510275, China;2.Department of Chemistry, Guangzhou Normal University, Guangzhou 510400, China) Abstract:The cyclic voltammetry, open current potential-time curve after potentiostatic electrolysis, the current-time curve at potential......
钕系催化剂合成高顺式窄分布聚丁二烯刘贤光1,张春庆1,胡雁鸣1,张学全21. 大连理工大学化工学院高分子材料系2. 中国科学院长春应用化学研究所摘 要:以新癸酸钕(简称Nd)/氢化二异丁基铝(简称Al)/氯化二乙基铝(简称Cl)为催化剂进行了丁二烯(简称Bd)聚合.考察了催化剂配制时不同Bd用量,[Al]/[Nd],[Cl]/[Nd],聚合温度和时间对Bd聚合的影响.结果表明:催化剂配制时,随Bd用量的增加,催化活性升高,相对分子质量分布变窄.聚合物产率在[Al]/[Nd]比值很低([Al]/[Nd]=10)时即可达到100%.所得聚合物具有高相对分子质量(-Mn=44×104),窄的相对分子质量分布(1.47),高cis-1,4结构含量(98.3%).聚合物的微观结构基本不受反应条件的影响,显示该催......
Low-temperature molten salt synthesis and luminescence properties of Eu(Ⅲ)-based coordination polymer nanosheetsLei Wang,Hao Liu,Shuang Huang,Sheng-Liang ZhongCollege of Chemistry and Chemical... bromide(TBAB) as low-temperature molten salt(LMS),terephthalic acid(PTA) and pyromellitic acid(PMA) as organic building blocks at 160℃.X-ray diffraction(XRD),Fourier transform infrared(FTIR),scanning......
钨酸钕单晶光谱及其上转换发光 刘燕行1,方方1,臧竞存2 (1.北京工业大学环境与能源工程学院,;2.北京工业大学材料科学与工程学院) 摘要:采用提拉法生长出钨酸钕Nd2(WO4)3单晶. 通过光谱测试确定了Nd 3+的能级结构, 采用波长为808 nm激光二极管作为激发光源, 室温下观测到457和65 7 nm两个波段的上转换荧光, 分别相应于2D5/2→4I11/2和 2G7/2→4I9/2跃迁, 457和657 nm处的上转换荧光强度与激发光功率 分别成线性关系和平方关系. 关键词:稀土; 钨酸钕单晶; 上转换发光; 光谱; [全文内容正在添加中] ......
concentrations SO2 fume pollution, a low-temperature molten salt smelting process to directly produce antimony was proposed in this work. Effects of molten salt composition, smelting temperature, reaction time, salt amount, and ZnO addition on the molten salt smelting of stibnite concentrate were investigated. The optimum conditions is determined as follows: w(Na2CO3)/w(NaCl)=0.75, temperature 850......
Synthesis and fluorescence properties of Y2O3:Eu by molten salt synthesis method吴晓勇1,2,梁玉军1,2,刘明宇2,陈蕊2,李永周21. Engineering Research Center of Nano-Geomaterials of Ministry of Education, University of Geosciences2. Faculty of Materials Science and Chemical Engineering, China University of Geosciences摘 要:Red phosphors Y2O3:Eu were synthesized via molten......
Optical properties of NaY(MoO4)2:Eu3+ nanophosphors prepared by molten salt methodLin Bai1,Qingyu Meng2,Mingxue Huo3,Yu Sui11. Department of Physics,Harbin Institute of Technology2. School of Physics...:Eu3+phosphors of different doping concentrations by a molten salt method.This facile way possesses advantages such as simple process,lower calcination temperature(350℃) and small particle size(70 nm......
Synthesis and fluorescence properties of Y2O3:Eu by molten salt synthesis method吴晓勇1,2,梁玉军1,2,刘明宇2,陈蕊2,李永周21. Engineering Research Center of Nano-Geomaterials of Ministry of Education, University of Geosciences2. Faculty of Materials Science and Chemical Engineering, China University of Geosciences摘 要:Red phosphors Y2O3:Eu were synthesized via molten......
Optical properties of NaY(MoO4)2:Eu3+ nanophosphors prepared by molten salt methodLin Bai1,Qingyu Meng2,Mingxue Huo3,Yu Sui11. Department of Physics,Harbin Institute of Technology2. School of Physics...:Eu3+phosphors of different doping concentrations by a molten salt method.This facile way possesses advantages such as simple process,lower calcination temperature(350℃) and small particle size(70 nm......
