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The world new and high technology development has brought up huge growing space for the rare earth metals industry. This......
Synthesis and photophysical properties of Ir~Ⅲ-Ln~Ⅲ(Ln=Nd,Yb,Er) bimetallic complexes containing bip
Bipyrimidines have been chosen as(N^N)(N^N) bridging ligands for connecting metal centers.IrⅢ-LnⅢ(Ln = Nd,Yb,Er) bimet......
Biginelli于1893年首次报道了乙酰乙酸乙酯、芳香醛和脲在浓盐酸催化下缩合得到3,4-二氢嘧啶-2-酮衍生物,这一合成方法被称为Bigin......
合成了组成为ＬｎＣｌ３．３ＰＡ的丙酰胺氯化稀土配合物（Ｌｎ＝Ｐｒ，Ｎｄ，Ｅｕ，Ｄｙ：ＰＡ＝Ｃ２Ｈ５ＣＯＮＨ２），ＩＲ表明，丙酰胺是通过酰胺基团的Ｏ与Ｎｄ进行配位，ＮｄＣｌ３．３ＰＡ配合物与烷基铝组成的二元体系，无论是三异丁基铝，二异丁......
用ＸＲＤ，ＴＰＲ，ＴＧ－ＤＴＡ考察了氧化镍／莫来石－刚玉催化剂添加Ｌａ２Ｏ３对ＮｉＯ性质的影响及两者间的相互作用，Ｌａ２Ｏ３使得催化剂中ＮｉＯ的晶格常数及分散容量增大，而晶相含量减少，还发现......
皖南地区震旦系蓝田组是新元古代冰期后形成的岩石地层,它的中下段以黑色页岩沉积为主,上段为白云质灰岩.黑色页岩段的分析结果表......
通过热失重分析、示差扫描量热分析、氧化诱导期和维卡软化点测定等手段研究了稀土化合物氧化镧（La2O3）对硅烷交联线形低密度聚乙烯（P......
Adding lanthanum to carbon-manganese purity steel, the existing forms of lanthanum were investigated. The results show t......
目的探讨犬脑枪弹伤后血脑屏障(BBB)通透性改变及意义.方法杂种犬12只,随机分成正常对照、脑贯通伤(PCI)15min、1h、6h组(n=3),采......
由原子的主量子数、价电子数及价电子能级值定义一个价电子平均能级指数L，它不仅对所有的原子具有优异的选择性，达到唯一性表征，而且......
测定了三个三元体系LaX3-PIAP-H2O(X-=ClO-4,NO-3,Cl-,PIAP为4-(邻苯二甲酰基)亚氨基安替比林)在30℃时的溶解度.研究发现La(NO3)3......
Purpose: To evaluate the function and the morphological changes of the blood aqueousbarrier (BAB) after phacoemulsificat......
为了研究制备工艺和掺杂对纳米钡铁氧体形貌及性能的影响规律,采用柠檬酸溶胶-凝胶法与燃烧相结合的方法制备出了BaFe12O19及掺镧......
本文回顾在日本筑波市举行的第四次中、日、座谈会上关于有机金属化学和催化作用最新的研究成果。......
在不同氧分压下合成了ＬａＭｎＯ３＋λ系列催化剂，用ＸＲＤ法进行了结构测定怀分析，和化学滴定分析了Ｍｎ＾４＋含量。在脉冲催化微型反应器上测定了ＬａＭｎＯ３＋λ１催化剂对ＣＯ催化......
本文报道了双（１１－钨锆）镧系元素三元杂多酸钾的合成，并通过ＩＲ，ＵＶ，ＴＧ－ＤＴＡ等物理方法及化学分析，离子交换，摩尔光度实验，电导滴定实验等进行了表征。......
The effect of single addition of La or Sm on the microstructures and mechanical properties of an Al-Cu-Mn alloy were inv......
The catalytic activity in the soot combustion is reported for a series of potassium-promoter alumina supported catalysts......
A series of perovskite type oxides with formula La1-xHoxFeO3, with Ho substitute for La, where (x = 0.1, 0.2, 0.3 and 0.......
NUMBER 3 RARE EARTH FACTORY OF BAOTOU IRON—STEEL AND RARE EARTH CORPORATION,FORGING AHEAD IN THE MAR
The Baotou iron-Steel and Rare Earth Co. is located in Baotou of the AutonomousRegion of Inner Mongolia, where China has......
