查询词典 phosphides

The bulk modulus of SiP is smaller compared with CN, CP and group III phosphides.

SiP的体弹性模量比CN和CP化合物以及相对应的第三族元素氮化物和磷化物要小。

The result demonstrates that only a few phosphides contribute to spontaneous crumbing of the RE silicide alloy by reacting with water and forming oxide or phosphorus oxide. The phosphorus content is not the crucial factor of disintegration of the alloy studied.

结果表明：含磷稀土硅化物合金中只有少部分磷化物能够水化，生成氧化物或含磷氧化物，从而对合金粉化起作用；在本实验研究范围内，磷含量不是稀土硅化物合金粉化的决定因素。

It has been a long history in the synthesis of amorphous metal borides and phosphides materials by using the electroless deposition method. This method is efficient, low cost and convenient for the deposition of the amorphous as well as crystalline metal-metalloid materials.

用化学镀方法制备硼化物和磷化物的非晶态合金材料由来已久，是一种高效、低耗的简易制备方法。

Improvement and modification of traditional metal sulphide catalysts, and the current situation of new catalysts such as metal carbides, metal nitrides and metal phosphides are emphasized.

着重概述了传统金属硫化物催化剂的改性方法，新型的金属碳化物、金属氮化物和金属磷化物催化剂的研究现状。

These elements do form compounds-nitrides, phosphides, and arsenides — in which ions having charges of minus three occur.

这些原理处理形式化合物-氮化物，在发生掌管负三哪一个离子中磷化物和砷化物—。

Transition metal phosphides have recently been the focus of research due to their higher activity compared to metal sulfides for HDS and HDN.

最近十几年，过渡金属磷化物以其高HDN和HDS活性和稳定性迅速成为加氢精制领域研究的热点。

Nickel phosphide was chosen as the HDN catalyst in the present dissertation because it is reported to have the highest activity among transition metal phosphides. For the supported nickel phosphide catalysts, mesoporous MCM-41 was used as the carrier. The effect of support modification and the introduction of a secondary metal species on the activity of supported nickel phosphide catalysts were studied.

本论文以磷化镍催化剂为研究对象，考察了MCM-41负载的磷化镍催化剂的制备及其对喹啉的HDN反应性能，载体和活性组分的改性对喹啉HDN反应性能的影响，以及TiO_2的引入对非负载的磷化镍催化剂HDN反应的影响。

The IR results indicate that the surface of these phosphide catalysts is partiallysulfided while the structure of the phosphides is retained under HDS reactionconditions.

CO 探针的红外光谱表明，在HDS 反应过程中，磷化物催化剂的体相结构可基本保持，但催化剂表面被部分硫化，形成了MoP_xS_y或NiP_xS_y活性相。

Quinoline is easily hydrogenated to DHQ on nickel phosphides catalysts.

磷化镍催化剂加氢能力很强，喹啉在Ni_2P／MCM-41催化剂上很容易加氢生成DHQ。

The effect of MCM-41 modification by K~+ and the introduction of HY on the HDN performance of the supported nickel phosphides were investigated. The modification of K~+ on MCM-41 hardly affected its activity in quinoline HDN.

考察了MCM-41改性后负载磷化镍催化剂及在磷化镍催化剂中加入第二组分后HDN反应性能。

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。