氢化物

Also, the diffusion process of atomic hydrogen on Mg（0001） was presented.

在此基础上，通过比较解离、扩散和放氢环节的激活能数据，为H2分子的解离和氢化物的放氢过程是速控步骤这一结论提供了理论支持。

LaNi〓 can be easily activated at room temperature and activated LaNi〓 possesses catalysing effect for the dissociation of H〓, which greatly reduces the energy barrier for dissociation of H〓. Hydrogen passed through LaNi〓 particles, then diffused into the crystal lattices of V、Nb and TiFe alloy and formed hydrogenate.

LaNi〓粒子在室温下很容易活化，活化后的LaNi〓具有了氢分子分解为氢原子的催化作用，降低了氢分子分解为氢原子所必须克服的势垒，氢通过LaNi〓粒子而进入V、Nb、TiFe合金晶格中，形成金属氢化物。

Lithium ion battery, Ni-MH (Nickel-Metal hydride) battery, F uel cell , Metal hydride (AB5 type metal hydride, Mg-based metal hydride, NaBH4 etc.) and its application, Syntheses and measurement of structural material and catalyst, Inorganic chemistry, Applied e le ctrochemistry

锂离子电池；镍氢电池；燃料电池；金属氢化物（ AB5型稀土系合金，镁基合金，硼氢化物等）及其应用；催化剂和结构材料；无机化学；应用电化学

At higher hydrogen concentrations, they even make the ductilities better than those of uncharged alloys by retarding the grain growth of the Beta phase.

氢化物在含量不高时不会影响合金的塑性，在高H浓度时，由于氢化物妨碍了β晶粒的长大，甚至使合金的塑性高于未充H的合金。

The rate capability of the alloys is improved after plating, due to the fine particles formed through hydrogen crisping and the nickel layer contributed to the conductivity of electrodes.

镀镍层有利于贮氢合金氢化物电极大电流放电，这种作用源于微包覆过程中氢脆引起合金颗粒的细化与表面镀层增强了电极的导电性。

Occurrence of RE hydride was identified in the Al-Si alloy containing RE andenrichment of hydrogen in polynary RE intermetallic compound was determined by means ofEPMA, secondary ion mass spectrography, Hg-free vacuum drivepipe hydrogen-meter to-gether with metallography and porosity measurement.

采用电子探针、二次离子质谱、无汞真空套管测氢仪等检测手段，并配合金相分析及试样孔隙度的测定，鉴定出含稀土的Al-Si合金中有稀土氢化物的存在，确认在多元稀土金属间化合物中氢的富集，提出稀土具有较强固氢作用的观点。

Experiment results show, in the HD process, the temperature of dehydrogenation process sets at about 580℃, can make the hydrid of Nd complete turning into NdH_2 which can resist being eroded and oxidation, so it increases the resistance to oxidation of the magnet powders.

研究结果表面，在氢爆HD工艺中，采用580℃左右的温度进行工艺中的脱氢过程，可以使富Nd相氢化物充分脱氢成稳定不易腐蚀氧化的NdH_2，增强了磁粉后续工艺中的抗氧化能力。

Preferential dissolution of α phase for specimens processed less than 12 hrs were revealed by using ICP-MS (inductively coupled plasma-mass spectroscopy). Hydrides having precipitated in the α-phase at the near surface peeled off into the electrolyte, and thus resulted in reduced HUE for specimens having experienced longer charging periods. In order to increase HUE, the hydrogenation promoter, Na2S2O35H2O, was added into the electrolyte to see the effect on the hydrogen absorption.

感应耦合电浆质谱分析术(inductively coupled plasma-mass spectroscopy； ICP-MS)分析发现，渗氢前一阶段（12小时）铝元素有较明显之溶释现象，此一现象肇因於渗氢作用使近表面层α-相中析出之氢化物体积逐渐扩大膨胀，最后剥落而溶於硫酸水溶液，也因此造成长时间之渗氢效率未随渗氢时间增加而增加。

The result of potassium malonyloxyborohydride as a new hydroboration reagent reacts with terminal alkenes and alkynes is described.

介绍新的硼氢化试剂丙二酰氧基硼氢化钾与链端烯炔烃的作用，烯烃的硼氢化物在PTC条件下，插入∶CCl2 ，可得饱和羧酸；炔烃则难以与之硼氢化。

This thesis introduces the characters and application of metal hydrides and the newest devolepment of the study co metal hydrides all over the world.

本文介绍了金属氢化物的性质与应用，与及国内外金属氢化物研究的最新动向。

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。