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lanthanide n.【化學】鑭化物,鑭族元素。

lanthanide series

Some trends in the studies of cellular inorganic chemistry have been described in this review , which mainly contains the aspects of effects of metal ions including calcium ions and lanthanide ions and activated small molecule on ion channels , receptor proteins in the membrane , intracellular receptor proteins and cellular function 本文評述了當前細胞無機化學研究中的幾個方面,主要是包括鈣離子和稀土離子在內的金屬離子和活性小分子對細胞膜離子通道、膜受體蛋白、胞內受體蛋白以及對細胞功能的影響。

Nano - alkali metal hydrides and lanthanide hydrides can be prepared easily by the direct hydrogenation catalyzed by ticl4 in tetrahydrofunan ( thf ) under normal pressure . lanthanide powder of nanometric size in a finely dispersed active form was generated by the thermal decomposition of organolanthanide in vacuum . 1 本文應用絡合催化法,在常溫常壓下,在萘/ ticl4催化體系作用下合成納米尺寸堿金屬氫化物(以nah為代表) 、納米尺寸鑭系金屬氫化物(以smh3為代表)和鑭系金屬有機化合物(以蒽鑭為代表) ,并通過真空熱解鑭系金屬有機化合物得到高分散度的納米尺寸鑭系金屬粉末(以la為代表) ,主要考察如下三個方面的內容。

The composite films comprising europium - containing lanthanide polyoxometalates all exhibited the characteristic red light emissions of eu3 + ion and the emission intensity increased with the number of bilayers . the films made up of keggin - type [ a - siw12o40 ] 4 - polyanion and polyaniline had conductivities with a magnitude of 10 - 3 s cm - 1 含銪多金屬氧酸鹽-聚電解質無機-有機復合膜在室溫下均顯示出eu ~ ( 3 + )離子的特征紅光發射,而且發射峰強度隨雙層數的增加而增長。

1 lanthanide hydrides ( m = la , nd , sm , dy and yb ) can be prepared easily by the direct hydrogenation of lanthanide metals catalyzed by ticl4 in tetrahydrofunan ( thf ) under normal pressure . the rate of hydrogenation decreased with increasing atomic number of lanthanides . transmission electron micrographs showed that the resulted lanthanide hydrides were in the form of nanoparticles with an average primary particle size around 20 - 40 nm 本論文首次提出一種在溫和條件下催化合成納米尺寸的鑭系金屬氫化物的方法,介紹在常溫常壓下,鑭、釹、釤、鏑、鐿五種鑭系金屬在四氫呋喃( thf )溶劑中,催化劑作用下與氫氣直接化合形成相應的納米尺寸的鑭系金屬氫化物。

The path - way controlling of neptunium in co - decontamination step of purex process , the extraction thermodynamics of amido podand and its usage in recovery of actinides from simulated hllw have been investigated . more than 95 % np were maintained in np ( v ) in 1a extractor and flowed into 1 aw , if enough amount of hno2 was added in feed adjustment and then hno2 scavenger ( urea ) was added before extraction . three kinds of amido podand were synthesized , and the extraction of lanthanides , actinides and some fission products were studied . one of them ( tbopda , n , n , n ' , n “ - tetrabutyl - 3 - oxa - pantenadiamide ) was used as extractant to recover actinides from hllw . the results of experiments show that more than 99 . 99 % actinides were recovered from hllw and separated basically in groups . the main digests are as follows : 1 镎走向控制研究中通過調價階段加入亞硝酸、而萃取前清除亞硝酸的獨特辦法可以將大于95的镎趕入1aw 。合成了三種酰胺莢醚萃取劑,研究了它們對錒系和裂片元素的萃取熱力學,通過條件實驗選擇了其中一種莢醚tbopda ( n , n , n ’ , n ’ ?四丁基? 3 ?氧戊二酰胺) ,進行了從模擬高放廢液中分離錒鑭系元素的工藝研究,錒系的回收率大于99 . 99 ,并且基本上實現了錒鑭元素的組分離。其要點如下: 1

The future work will be concentrated as following : ( 1 ) the mechanism of the effect of doping in a site on 2pr should be clarified by the research on the rule of 2pr of sbti doped by the lanthanide serials having different ions radii ; ( 2 ) the properties bit - sbti doped in the b site should be studied ; ( 3 ) the thin films of these materials should be prepared and their properties should be studied 今后的工作要點主要為: ( l )用la系其它元素對sb五摻雜,通過改變離子半徑,研究2pr的規律,驗證我們提出的a位摻雜對材料zpr影響機理; ( 2 ) b位摻雜對brr - sb五的性能影響研究; ( 3 )這些材料的薄膜制備及性能測試。

3 . the reaction of lanthanide powder with anthracene in the presence of ticl4 catalyst in tetrahydrofuran at 0 - 60 under normal pressure generated organolanthanide compounds , which are less thermal . it was found that the decomposition of the organolanthanide compounds in vacuum could give rise to lanthanide powder of nanometric size with high purity accordingly 3 .納米尺寸鑭系金屬粉末制備的研究溫和條件下,采用絡合催化法合成鑭系金屬有機化合物,利用它的熱不穩定性,在真空條件下進行熱分解來制備納米尺寸鑭系金屬粉末。

Some trends in the studies of cellular inorganic chemistry have been described in this review , which mainly contains the aspects of effects of metal ions including calcium ions and lanthanide ions and activated small molecule on ion channels , receptor proteins in the membrane , intracellular receptor proteins and cellular function 摘要本文評述了當前細胞無機化學研究中的幾個方面,主要是包括鈣離子和稀土離子在內的金屬離子和活性小分子對細胞膜離子通道、膜受體蛋白、胞內受體蛋白以及對細胞功能的影響。

In 1980 s the lab has made significant progress in such fields as counter - current extraction theory and its applications in developing new separation technologies of rare earths ; development of high accurate algorithms for relativistic density - functional calculations of compounds containing lanthanides and or other heavy elements ; preparation of solid luminescence materials ; systematic study on the relationship between structure and property of extracted complexes as well as formation of micro - emulsion in extraction 在80年代,學科建設有了很大發展,在串級萃取理論及其在發展稀土分離新技術方面的應用發展用于稀土和重元素化合物的相對論密度泛函計算的高精度算法;固體發光材料制備;研究萃取絡合物的結構與性能關系以及萃取中微乳狀液的形成及其規律等方面取得了顯著成績。

The investigation of ir , dsc , gpc showed that water resistance , corrosion resistance , stockpiling property and mechanical strength of the lanthanide bakelite modified epoxy powder coating were improved apparently and showed the way was feasible 利用紅外、 dsc 、 gpc等測試方法,對粉末涂料進行研究,發現改性后粉末涂料體系耐水性及耐腐蝕性能明顯提高,其貯存性能及力學強度也得到了明顯改善,說明此方法可行。

The sample was dissolved by nitric acid and tartaric acid , and determined by aas with lanthanide oxide and edta masking al for determination of ca , with hc1 precipitating pb for determination of sn and al 摘要通過先加酒石酸、硝酸溶解樣品,用氧化鑭、 edta聯合掩蔽鋁來測定鈣,鹽酸沉淀鉛后測錫、鋁的試驗,采用火焰原子吸收光譜法測定錫、鈣和鋁。

Using doped method in inorganic luminescence materials , lanthanide chelates have been put into complex matrix . rare earth ion concentration is lowered and new kind of rare earth compounds are gotten 類似無機熒光材料中摻雜辦法,將稀土熒光絡合物摻入絡合物基質中,降低稀土濃度,得到新型稀土絡合物發光材料。

In order to improve the water resistance and corrosion resistance properties of epoxy powder coating , the epoxy system were modified by blending it with the lanthanide bakelite 摘要為了改善環氧粉末涂料體系耐水性和耐腐蝕性,通過添加稀土酚醛對環氧樹脂進行了改性。

Transmission electron micrographs showed that the resulted lanthanide were in the form of nanoparticles with an average primary particle size around 20 - 40 nm Tem測試結果表明真空條件下( 13 - 40pa ) ,熱分解制得的活性金屬粉末的顆粒大小為20 - 40nm ,分散度好且純度高。

It is evident from these data that the crystal structure determines the frequency position , and clearly shows the effect of the lanthanide contraction in this series of compounds 這些數據表明振動頻率取決于晶體結構并揭示了鑭系收縮效應對振動頻率的規律性影響。

Rare earth elements ( rees ) consist of lanthanide series with atomic numbers from 57 to 71 , as well as scandium ( atomic number 21 ) and yttrium ( atomic number 39 ) 稀土是指原子序數從57到71的鑭系元素以及與其同族的鈧和釔,共有17個元素。

Supplier of rare earths lanthanides , high purity metals and oxides and specialty inorganic compounds for industrial and laboratory applications -生產納米活性碳酸鈣。應用于塑料改性,橡膠工業,密封膠粘材料,油墨與印刷等領域。

Synthesis and characterization of the complexes of lanthanide perchlorates with n , n ' - dimethyl - n , n ' - diphenyl - 3 , 6 - dioxaoctane diamide 三甘雙酰氮甲基苯胺稀土高氯酸鹽配合物的合成及表征

Microcalorimetric study of the action of two kinds of lanthanide monoporphyrinate complexes on growth metabolism of escherichia coli 兩種稀土卟啉配合物與大腸桿菌作用的微量熱研究