纳米

Tetrahexahedral Pt nanocrystals have been firstly prepared by the developed electrochemical method.

发展金属纳米晶体表面结构控制和生长的电化学方法，首次成功制备出二十四面体Pt纳米催化剂。

Using CoCl2·6H2O,FeCl3·6H2O and NaOH as reactive materials,tetramethylammonium hydroxideN(CH34OH as dispersant, monodisperse CoFe2O4 nanocrystals was synthesized successfully by two-steps heated codeposition method.

6H2O，NaOH为原料，利用N(CH3)4OH作为改性剂，对CoFe2O4纳米颗粒进行原位表面改性，采用二次加热法，制备单分散性CoFe2O4纳米晶。

Using CoCl2·6H2O,FeCl3·6H2O and NaOH as reactive materials,tetramethylammonium hydroxideN(CH34OH as dispersant,monodisperse CoFe2O4 nanocrystals was synthesized successfully by two-steps heated codeposition method.

本文分别以CoCl2.6H2O，FeCl3.6H2O，NaOH为原料，利用N(CH3)4OH作为改性剂，对CoFe2O4纳米颗粒进行原位表面改性，采用二次加热法，制备单分散性CoFe2O4纳米晶。

Well dispersed platinum nanoparticles and those with special shapes were synthesized through electrochemical and thermochemical methods.

采用电化学方法、热化学方法在水相中制备了分散性良好的铂纳米粒子以及具有一定形貌的铂纳米粒子结构。

A direct method to prepare nanometre catalyst of positive electrode for methyl alcohol fuel battery is to add strong oxidant to a mixed solution of manganese nitrate and some other metal nitrate, to coat them on the graphite electrode to have catalyst precursor produced, then to prepare the non-platinum nanometre catalyst of metal ion-doped manganese dioxide with carbon as a carrier by thermolytic reaction of the in-situ precursor. The prepared catalyst has the advantages of high electrical catalytic activity of methyl alcohol, high performance to protect against CO poison and low price, and it can lower the battery manufacturing cost effectively as well as can raise the entire electrical property of the battery so that the price performance and the market competitive edge of the battery are enchnaced effectively.

一种直接甲醇燃料电池阳极纳米催化剂的制备方法是在硝酸锰和其它金属硝酸盐的混合溶液中加入强氧化剂，涂抹于石墨电极上制成催化剂先驱体，通过先驱体在原位的热分解反应来制备以碳为载体的金属离子掺杂二氧化锰非铂纳米催化剂；制得的催化剂具有高的甲醇电催化活性、高的抗CO毒化性能以及低廉的价格等优点，可以有效地降低电池的制造成本，提高电池的整体电性能，从而有效地提高直接甲醇燃料电池的性能价格比及市场竞争能力。

nanometer TiO_2,titanyl sulfate,homogeneous precipitation method,commercial production

采用廉价、工艺简单的制备方法获得高性能的纳米TiO2，是现今工业化生产纳米TiO2所追求的主要目标。以硫酸法TiO2生产的中

The mice all survived after two weeks. Nanoparticles was harmful to liver and lung to some extent, especially to liver. The modified nanoparticles was little toxical.

经两周观察，未见小鼠死亡情况，纳米颗粒对小鼠的肝脏与肺脏均有不同程度的伤害作用，对肝脏的影响较大，且经过改性的纳米颗粒的伤害作用相对较小。

The nanocrack is a crack in nano size withingrain and it may cause transcrystalline fracture.

纳米级裂纹是晶粒中纳米大小的裂纹，它可能是导致穿晶断裂的裂纹。

Diethylene triamine had good control of the synthesizing of ZnSe nanocrystal, but the condition of high temperature and strong alkalescence had negative influence on the morphology of nanofibers. PAN and MMA-BMA-AA nanofibers whose diameter were about 200nm could be electrospun by optimize technics summed by experiment.

通过实验总结出制备PAN与MMA-BMA-AA静电纺纳米纤维优化纺丝工艺，可纺出直径在200nm左右的PAN／MMA-BMA-AA纳米纤维毡，所得聚合物纤维包含一定数量的羧基，Zn~(2+)在溶液条件下可与之配位。

Nano-meter modified aluminum trihydrate was first time used as flame retardant to the flame retardation of PBT .

首次采用纳米改性氢氧化铝对对苯二甲酸丁二醇酯进行阻燃研究，考察了纳米的填充量对PBT/CGATH复合材料力学性能以及燃烧性能的影响。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。