氢化物

These methods include hydrogenation in high-pressure,reduction by hydroborates and reduction by dithionite. This article studied these methods, especially optimized the technology of hydrogenation in normal pressure and reduction by hydroborates.

研究了常压氢化法、加压氢化法、硼氢化物还原法及连二亚硫酸钠还原法等制备四氢叶酸，并优化了常压氢化法、硼氢化物还原法的工艺条件。

To prepare THFA from folic acid , catalytic hydrogenation and high-pressure hydrogenation, reduction by borohydride and reduction by dithionite were investigated. Especially, the technology of catalytic hydrogenation and reduction by borohydride were optimized.

本文研究了常压氢化法、加压氢化法、硼氢化物还原法及连二亚硫酸钠还原法制备四氢叶酸，并优化了常压氢化法、硼氢化物还原法的工艺条件。

The crystal structure of pure Pd is of face centered cubic and it is a hydrogen absorbing metal.

钯是一种面心立方结构的吸氢金属，氢原子溶解在晶格中，占据八面体间隙位，形成fcc的子晶格，吸氢时晶格发生等方性膨胀；氢在钯中的扩散路径为O T O跃迁，存在反同位素效应；钯氢化物的氢同位素分离因子较大，并受到温度、氢浓度等因数的影响；钯氢体系的p c等温线表现出良好的坪台性，Pd H和Pd D均存在临界点，尚未确定Pd T有无临界点；单晶钯氢反应动力学与不同的晶面有关；钯氚体系存在氚老化效应

On the basis of the reductant hydrogen theory, hydrogenate theory and electrochemisty mechanism, the reaction mechanism of deposits is discussed systematically, with phosphinate, borohydride and borohydride as reductant.

利用已提出的还原氢态理论、氢化物理论以及电化学理论分别以次磷酸盐、硼氢化物以及次磷酸盐与硼氢化物作为复合还原剂条件下，对镀层的反应机制进行了系统的讨论。

It is estimated that D atom prefers to takeposition of 3Ti-1Mo tetrahedron interstices, whereas H atom prefers to take 4Ti position.

Mo含量为0.03时，合金的分离因子约等于1.0，这是具有反同位素效应的纯钛氢化物和具有正同位素效应的Ti-Mo合金氢化物共同作用的结果。

We believe that in CO hydrogenation reaction, the scission of C-O bond is via the carbonyl hydride-multihydrogen carbonyl hydride.

与CO加氢反应和CO歧化的吸附态研究结果相关联，作者认为Rh+Co/Al2O3上CO加氢生成CH4是经由羰基氢化物-多氢羰基氢化物途径。

The hydrogen storage properties of NaAlH4 doped by 3% TiZr alloy hydride with ball-milling method was investigated by X-ray diffractometry, scanning electron microscopy and sievert's technology test.

摘 要：采用机械球磨方法在NaAlH4 络合氢化物中添加3%TiZr合金氢化物，合成复合储氢材料。

He hardness of Ti600 alloy increases with increasing of hydrogen, and it is considered that hydride, silicide and lattice defects are the major factors.

i600合金的硬度随着氢含量的提高而提高，其主要原因是氢化物、硅化物粒子以及晶格缺陷的存在。

This paper introduced a few of methods of hydrogen storage,including compressed hydrogen, liquidized hydrogen,metal hydrides,carbon nanotubes,organic liquid hydrides storage,and commented their recent developments,and pointed out direction of hydrogen energy storage progress.

介绍了高压压缩储氢、深冷液化储氢、金属氢化物储氢、碳纳米管吸附储氢及有机液体氢化物储氢等几种储氢技术的发展现状，并指出储氢技术未来的发展方向。

The results show that T225NG Ti-alloy has good property of resisting hydrogen brittleness in atmosphere and in loop water. Hydrogen brittleness of T225NG Ti-alloy is hydride brittleness. This is due to the forming of hydride caused by a large amount of hydrogen dissolved in and oxide film on the surface of T225NG ...

研究结果表明：T225NG钛合金在空气和高温高压高纯水的环境下具有良好的抗氢脆性能； T225NG 钛合金的氢脆属于氢化物脆性，这是由于T225NG钛合金中渗入的氢导致氢化物的析出引起的；T225NG钛合金表面氧化膜对它优良的抗氢脆性能起了决定性的作用。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。