前驱

This approach avoided the long duration at high temperatures in traditional methods and unstable precursors in metathesis reactions.

这种合成方法不需要单质反应的高温及长时间处理，也避免金属氯化物与碱金属硫化物或硒化物之间的交换反应中不稳定的前驱物。

Mesoporous molecular sieves, named SAN-01, were hydrothermally synthesized with microcline, a natural ore, as starting material, and the seeds of 13X zeolite as pore-wall＇s crystal source.

以微斜长石制备的硅铝酸盐前驱物为主要原料，以13X沸石晶核剂为孔壁结构导向剂，水热合成了含有13X沸石基本结构单元的硅铝酸盐介孔分子筛SAN-01。

Aluminosilicate mesoporous molecular sieves are synthesized with natural ore and microcline as main raw materials,and the precursors of 13X zeolite as crystal source,by integrating the synthetic procedures of mesoporous MCM-41 and microporous 13X zeolite.

以天然矿物微斜长石为主要原料，13X沸石前驱体为晶核剂，结合介孔分子筛MCM-41与13X沸石合成工艺，合成了孔壁中含有13X沸石基本结构单元的铝硅酸盐介孔分子筛。

Aluminosilicate mesoporous sieve s with 13X zeolite units in the pore wall were synthesized with a natural ore,microcline,as the main raw material,and the precursors of 13X zeolite as the crystal source,by integrating the procedures for MCM-41 and 13X zeolite synthesis.

以天然矿物微斜长石为主要原料，以13X沸石前驱体为晶核剂，结合介孔分子筛 MCM-41与13X沸石合成工艺，合成了孔壁中含有13X沸石基本结构单元的铝硅酸盐介孔分子筛。

Aluminosilicate mesoporous sieves with 13X zeolite units in the pore wall were synthesized with a natural ore, microcline ,as the main raw material,and the precursors of 13X zeolite as the crystal source,by integrating the procedures for MCM-41 and 13X zeolite synthesis.

以天然矿物微斜长石为主要原料，以13X沸石前驱体为晶核剂，结合介孔分子筛MCM-41与13X沸石合成工艺，合成了孔壁中含有13X沸石基本结构单元的铝硅酸盐介孔分子筛。

In this paper,Sn doped ZnO crystals were synthesized by hydrothermal method with 3M KOH as mineralizer.

采用水热法，在ZnO中添加SnCl2.2H2O作前驱物，3M KOH作矿化剂，温度430℃，填充度35%，反应24h，合成了掺杂Sn的ZnO 晶体。

Using concentrate containing Mo≥54% as precursor,by advanced roasting furnace for oxidization roasting molybdenite concentrate can produce high quality technical molybdenum oxide possessed of world grade.

只有以含钼≥54%、杂质低的钼精矿作生产工业氧化钼的前驱体，采用较先进的焙烧设备进行氧化焙烧才能产出与国际钼市场产品质量接轨的工业氧化钼产品。

A series of molybdenum carbide catalysts were prepared using 20%CH4-H2 to carburize molybdenum trioxide at different temperatures. The catalysts were characterized using X-ray diffraction, X-ray photoelectron spectroscopy and N2-adsorption. Their catalytic performance was evaluated in the model reaction of the dry-methane reforming to synthesis gas. Here, the characteration of bulk and surface Mo2C catalysts and its influence on the catalytic performance were described.

以MoO3为前驱物，于20%CH4-80%H2的混合气体(100 mL/min)中，在不同设定终温下进行碳化，制备了一系列不同碳化终温的Mo2C，通过XRD和XPS等手段进行了表征，并对其甲烷二氧化碳重整制备合成气的催化性能进行评价，讨论了碳化终温作为Mo2C的制备参数，与所制备的Mo2C体相、表面特征和催化剂性能的关系。

The hexagonal and monoclinic monazite CePO4 nanowires with a narrow range of diameter distribution and large aspect ratio were synthesized mildly through hydrothermal process at 150 ℃ using CeCl3·7H2O and H3PO4 as the raw materials. The crystal structure, micro-morphology, and photoluminescence of the nanowires were characterized by XRD, TEM, HRTEM, and UV spectrophotometer.

以铈盐和磷酸为前驱体，经水热合成获得了高长径比的具有六方晶型和单斜晶型独居石结构的CePO4纳米线，采用XRD、HRTEM、SEM和荧光光度计对其晶相组成、形貌及发光性能进行了表征。

No transition state was found from mono-σ bonding state to 1,4-binding state by our theoretical calculation, so the adsorption mechanism of benzene on Si(111)-7 * 7 surface was proposed.

计算结果表明苯在Si(111)- 7 * 7表面的主要吸附种是双σ成键的1，4加成产物，不稳定的单吸附物种可能是 1，4加成物种的前驱态。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。