金属氢

The thermochemical cycle s based on metal oxides were reviewed.

介绍了以金属氧化物为介质的热化学循环分解水制氢。

Hydroesterification of tert-butyl alcohol with ethanol catalyzed by transition metal triphenylphosphine complexes was first investigated in room temperature ionic liquids.

反应温度为100～140 ℃，CO初始压力为2～6 MPa条件下，研究了室温离子液体与过渡金属三苯基膦配合物构成的催化反应体系中，叔丁醇与乙醇的氢酯基化反应。

A full set of metal ball bearings enhances the efficiency of the drive train, helping the Wheely King get over 20 minutes of runtime out of its 7.2v battery!

一套完整的金属球轴承，提高效率的驱动器的列车，帮助wheely国王得到超过20分钟的运行时出其氢电池！

Hydrogen chloride has many uses, including the hydrochlorination of rubber, the manufacture of pharmaceutical s, in metals manufacturing as a babbitting flux

氯化氢有许多用途，包括橡胶的氢氯化反应、药品生产、在金属生产中作为镶巴比合金焊剂

Hydrogen chloride has many uses, including the hydrochlorination of rubber, the manufacture of pharmaceuticals , in metals manufacturing as a babbitting flux

氯化氢有许多用途，包括橡胶的氢氯化反应、药品生产、在金属生产中作为镶巴比合金焊剂

Hydrogen chloride has many uses, including the hydrochlorination of rubber, the manufacture of pharmaceuticals, in metals manufacturing as a babbitting flux, in the textiles industry for delinting of cotton seeds and the reclamation of wool, gasoline refining, the manufacture of organic and inorganic chlorinated compounds, and in the manufacture of semiconductors as an etchant.

氯化氢有许多用途，包括橡胶的氢氯化反应、药品生产、在金属生产中作为镶巴比合金焊剂、纺织工业中用于除棉籽和毛线的回收、汽油精制、有机和无机氯化合物的生产、半导体生产中作为蚀刻剂。

Uses用途 Hydrogen chloride has many uses, including the hydrochlorination of rubber, the manufacture of pharmaceuticals, in metals manufacturing as a babbitting flux, in the textiles industry for delinting of cotton seeds and the reclamation of wool, gasoline refining, the manufacture of organic and inorganic

氯化氢有许多用途，包括橡胶的氢氯化反应、药品生产、在金属生产中作为镶巴比合金焊剂、纺织工业中用于除棉籽和毛线的回收、汽油精制、有机和无机氯化合物的生产、半导体生产中作为蚀刻剂。

At the same temperature, the-OCH2CH2-intermediate dehydrogenates to a -OCH,CH2-oxametallacycle species.

另外，在相同的温度下－OCH2CH2-中间产物经过脱氢反应产生－OCH2CH2-氧金属环。

The analyses of electronic structures shows that the catalytic reactivities for H2 adsorption of the different surfaces are dependent on the numbers of s orbital bonding electrons around Fermi level for the uppermost layer metal atoms which interact directly with H2. It is easy to form vacancy for hydrogen atoms next to iron atom, which indicates that hydrogen atom cannot be escaped, but it is difficult to from vacancy for hydrogen atoms next to magnesium atom, which indicates that hydrogen atom can be escaped. Hence it is thought that the change of dehydrogenating properties of MgH2 with or without a little iron addition attributes to the weakened bonding between magnesium and hydrogen.

分析电子结构发现：空位缺陷有助H2吸附于Mg表面，与Mg(0001)表面最上层与H2直接产生吸附作用的金属原子在费米能级附近s轨道的成键电子数密切相关；在Fe合金化MgH2体系中，与合金化元素Fe近邻的H原子形成空位的难度增加，H原子较难释放；与Mg近邻的H原子形成空位的难度减少，H原子容易释放；Fe合金化导致Mg-H之间存在较弱的成键作用，因此，MgH2体系的解氢性能得到提高。

The alumina carrier has concentrated pore distribution and is especially suitable for use as the carrier for hydrogenating demetalization catalyst.

该氧化铝具有更为集中的孔分布，特别适合用作加氢脱金属催化剂的载体。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。