钼

A series of unsupported molybdenum phosphide were prepared at different reduction temperatures by temperature-programmed reaction process.

通过程序升温还原磷钼酸盐前体的方法制备了无负载磷化钼催化剂，并采用XRD ，BET ，XPS和高压连续微反技术，考察了催化剂的性质，研究了还原温度对催化剂HDN ，HDS和HYD性能的影响。

A novel solvothermal synthesis method for direct preparing of crystals of copper phthalocyanine is presented in this article.

我们使用三种原料合成酞菁铜晶体：一是邻苯二腈、钼酸铵和二水乙酸合铜为起始原料；二是1，3-二亚胺基异吲哚啉和二水乙酸合铜为起始原料；三是邻苯二腈、氧化铜和钼酸铵为起始原料。

When adding a certain concentration of stannous chloride reductant, it will change into a blue complex.

在酸性条件下，正磷酸盐与一定浓度的钼酸铵反应，生成磷钼杂多酸。

The thermionic emission properties of rare earth doped molybdenum cathode and impregnatedcathode with sub-micron scandia doped tungsten matrix, and the secondary emission property of rare earth dopedmolybdenum cathode have been studied in this paper.

稀土掺杂钼热阴极发射特性和浸渍与亚微米斯坎迪亚掺杂钨阴极基体，以及稀土掺杂二级排放特性钼阴极进行了研究，在此文件。

The invention adopts a low temperature solid state reaction method, proceeds from europium oxide, molybdenum oxide and strontium carbonate, and can synthesize the UV-excited europium-doped strontium molybdate LED red phosphor having stable chemical performance without high temperature calcinations. The method is high in maneuverability and good in reproducibility. The obtained product is stable in quality and regular in appearance.

本发明采用低温固相反应法从氧化铕，氧化钼与碳酸锶出发可以不需要高温煅烧合成出化学性能稳定、紫外激发LED用铕掺杂钼酸锶红色荧光粉，本发明方法的可操作性强，重现性好，所得产品质量稳定，形貌规整。

Effects of temperature and supersaturation on the nucleation rate were discussed.

本文研究了用盐酸酸沉仲钼酸铵溶液制备四钼酸铵的成核过程，测量了以诱导期表示的成核速率，讨论了温度和过饱和比对成核速率的影响。

In acidic medium,ammonium vanadate and ammonium molybdate are added,which,with phosphorous acid,form yellow ternary acid of phosphor,vanadium and molybdenum,by which the content of phosphor can be determined.

试样经盐硝混合酸溶解，以过氧化氢将亚磷酸氧化成正磷酸，在酸性介质中，加入钒酸铵和钼酸铵与磷酸形成黄色的磷钒钼三元杂多酸，从而进行磷的测定。

The results of the dissertation were concluded as follows:(1) It is essential to deposit a basic additive on the Mo-based catalysts for the synthesis of CH_3SH. The potassium-doped Mo-based catalysts exhibit the highest activity than that of the catalysts doped with the otherⅠA andⅡA group basic promoters. H_2-TPR and LRS characterizations suggest that the addition of a base leads to the transformation of octahedrally coordinated Mo to tetrahedrally coordinated Mo, thus leads to the split of low temperature reduction peaks. The interaction between the basic components and Mo lead to the formation of B-Mo interface phase, which are closely correlated with the formation of CH_3SH.(2) It has been found that Fe, Co, Ni and Te have evident promoting effects for the K-Mo/SiO_2 catalysts.

主要结果归纳如下：(1)在Mo基催化剂中，必须添加碱才具有可观的合成甲硫醇活性，在IA和IIA族元素中，K是最佳的碱促进剂，当K/Mo摩尔比为2，前驱体为K_2CO_3，采用共浸法制备的K-Mo催化剂活性最高。H_2-TPR和LRS表征显示，碱的加入导致表面八面体钼氧物种向四面体转化，催化剂的低温还原峰发生分裂，碱助剂与钼之间存在强相互作用形成了B-Mo"界面相"，该物种与合成甲硫醇密切相关。

The crystalline,thermochemistry property and crystal appearance of ammonium tetramolybdate under ultrasonic were discussed.

摘 要：研究了超声波对两种不同结晶形态的四钼酸铵结晶过程的影响，揭示了超声波对钼酸铵溶液结晶的晶型、热化学性质和晶体形貌的影响规律。

All the results indicated that Brazilian sugarcane also had a nitrogen-fixing capacity in Guangxi, Mo was propitious to regulate nitrogenase activity of nitrogen-fixing bacteria in sugarcane under nitrogenous conditions, and promoted nitrogen fixing; while under non nitrogenous conditions, it was unpropitious to regulate the nitrogen activity and inhibited nitrogen fixation of nitrogen-fixing bacteria.

上述结果说明：巴西甘蔗在本地也具有一定的固氮能力；在不缺氮条件下，钼处理较利于调节甘蔗体内固氮菌的固氮酶活性，促进其固氮；而在缺氮条件下，钼处理不利于调节甘蔗体内固氮菌的固氮酶活性，抑制其固氮作用。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。