硒化物

Many sulphides, selenides, and telluides have the nickel arsenide, NiAs, type of structure.

许多硫化物、硒化物和碲化物具有砷化？？iAs型的结构。

Many sulphides, selenides, and telluides have the nickel arsenide, N iAs , type of structure.

许多硫化物、硒化物和碲化物具有砷化？？ ias 型的结构。

Many sulphides, selenides, and tellurides have the nickel arsenide's NiAs type of structure

许多硫化物，硒化物和碲化物具有砷化镍NiAs型的结构。

The preparing process is described as follows:(1) the raw materials are dispersed in the solvent;(2) the solution is arranged between two electrodes;(3) alternating current with a voltage of 5 V-100V and a frequency of 10Hz-1000Hz is applied to both ends of the electrodes for 5minutes to one hour;(4) the product obtained after being washed with deionized water and pump filtrated or after centrifugal treatment is dried by being heated to 40 centigrade to 100 centigrade to get the nanometer grain, wherein the raw materials in the first step are micrometer materials or nanometer materials such as sulphide, selenide, telluride and oxide; without special requirement on shape or appearance, the materials can be in the shape of a rod, a fork, a star, a block or a sphere; the solvent in the first step can be water, ethanol, acetone, benzene or tetra chloromethane.

步骤为：1将原料分散于溶剂中；2使制成的溶液处于两电极之间；3在电极两端的加交流电，电压为5V-100V，频率为10Hz-1000Hz，时间为5min-1h；将产物用去离子水洗涤、抽滤，或进行离心处理后；4将所得到产物加热到40～100℃进行干燥，得到纳米颗粒。步骤1中原料为硫化物、硒化物、碲化物、氧化物等微米或纳米材料，其形貌不限，可以为棒状、枝状、星状、块状、球形等多种形状。步骤1中的溶剂可以为水、乙醇、丙酮、苯或四氯化碳。

Se and selenide with nanostructure, are attracting more and more attention due to their significant importance in materials science and biomedicine.

而具有独特性质的纳米硒及硒化物在材料学和生物学上具有更重要的意义，因而引起了人们的极大兴趣。

PbSe is an attractive selenides for wide applications in photoresistors, photodetectors and photoemitters in the infrared range.

硒化铅是一种非常有吸引力的硒化物，在光敏电阻、光电探测器和红外区光电发射器方面具有广泛的应用。

The common ultrasonic clean machine was used to prepare nanocrystalline selenides at room temperature and nanocrystalline Ag〓Se, CuSe and PbSe were prepared by this method.

提出了采用普通的超声清洗机制备纳米硒化物的室温制备技术，分别制得了Ag〓Se、CuSe和PbSe等硒化物纳米晶。

The millimetersized tubular crystal selenium was first prepared. By studying the process of treating selenium in ethylenediamine, we proposed the mechanism of the preparation of selenides under solvothermal condition. The selenides came into being from the reaction of metal ions with Se〓, which was obtained by the amine attacking selenium. Moreover, a new precursor to prepare nanocrystalline selenides at room temperature was obtained. From this precursor, we have prepared nanocrystalline silver selenides, copper selenides, lead selenides and cadmium selenides nanorods.

首次报道了采用溶剂热处理的方法制备出厘米尺度的管状结构硒晶体；通过对硒粉在乙二胺中的溶剂热研究，初步探讨了以单质硒为硒源的溶剂热合成硒化物的反应机理应是硒受胺类的亲核进攻变成Se〓而进一步形成相应的硒化物；获得了合成硒化物纳米晶的前驱物，并在室温条件下合成了硒化银、硒化铜、硒化铅纳米晶和硒化镉纳米棒等。

Under atmospheric pressure, binary nanocrystalline sulfides and selenides such as CdS、CdSe、PbS、 PbSe、Cu〓Se、Ag〓S、Ag〓Se、SnSe are obtained at room temperature; nanocrystalline CdTe and PbTe are obtained by heating. Nanocrystalline NiSe〓、CoSe〓 and FeTe〓 are obtained by hydrothermal conditions.

根据硫、硒歧化的碱溶液与碲歧化的碱溶液稳定性的不同，发现在室温条件下可成功获得CdS、CdSe、PbS、PbSe、Cu〓Se、Ag〓S、Ag〓Se、SnSe等二元硫化物与硒化物纳米晶；加热条件下可成功获得CdTe与PbTe纳米晶；而NiSe〓、CoSe〓及FeTe〓的合成则要在水热条件下进行。

Alkaline earth sulfides MS, alkaline earth selenides MSe, MS1-xSex,gallium sulfide Ga2S3, oxysulfide MLaGa3OS6, complex sulfides MGa2S4 and Ba2ZnS3 doped with rare earth ions Eu2 , Ce3 , Tb3 , Ho3 , Tm3 were synthesized and their spectroscopic properties were studied.

合成了掺Eu2 ， Ce3 ， Tb3 ， Ho3 ， Tm3 等稀土离子的碱土硫化物MS，碱土硒化物MSe，碱土硒硫化物MS1-xSex，硫化镓Ga2S3，氧硫化物MLaGa3OS6，和复合硫化合物MGa2S4， Ba2ZnS3，并研究了它们的光谱性质。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失