查询词典 Zr

Zirconium 3-nitrophthalate Zr(3-NO2-PHT2·2H20 was synthesized using 3-nitrophthalic acid, sodium hydroxide, and zirconyl nitrate as raw materials.

用3一硝基邻苯二甲酸、氢氧化钠和硝酸氧锆为原料，制备了3。

The super microporous tin-doped zirconium oxides were successfully synthesized by sol-gel method using zirconyl chloride as Zr source, tin chloride as Sn source and cetyltrimethylammonium bromide as template under hydrothermal or refluxing conditions.

以二氯氧锆和四氯化锡为金属源，十六烷基三甲基溴化铵为模板剂，用溶胶-凝胶法在水热或回流条件下成功合成出了锡掺杂的超微孔二氧化锆材料。

The surface zirconyl species as centers of negative charge compensated by sodium ions presents a property of ion exchange. mesoporous silica ; ZrMCM-41; synthesis ; molecular sieves

在本文中，作者使用中性条件和硝酸氧锆作锆源，在水热体系中把Zr原子引入其固架，合成出了ZrMCM - 41 ，发现该样品与文献 [4]，[5]报道的不同，存在明显的B酸中心。1 实验部分1 。1 试剂硅源：Na2 Si3O7溶

The results show that the addition of Zr increases the content of acicular ferrite and improves the microstructure of weld metal.

结果表明，锆的加入增加了焊缝金属中针状铁素体的含量，改善了焊缝金属的微观组织。

The corresponding conditions were atmospherically react 3.5 h with heating up temperature 383 K, n/n=8 and n/n=0.08. The conversion of HDA was 100% with 91.24% yield of HDU-M.

Zr(NO3)4*5H2O可以有效抑制甲基化副反应，是活性最佳的金属含氧酸盐催化剂，对应工艺条件为：加热温度 383 K，反应时间 3.5 h，n/n=8，nCat。

For low molar ratios of Al/Zr, a hypsochromic shift of the initial catalyst absorption band, corresponding to the monomethylation of the catalyst, was observed. Further addition of AlEt2Cl was accompanied by a continuous bathochromic shift of the maximal wavelength corresponding to the formation of more dissociated ionic active species. Then, there would be a coordination of monomer to the ionic active species.

结果表明，无论是AlEt_2Cl还是MAO，少量的助催化剂首先使催化剂发生单烷基化反应，主催化剂金属中心的最大吸收峰波长发生蓝移，而当助催化剂量进一步增加时，金属中心的最大吸收峰波长红移，单烷基取代的催化剂被大量的助催化剂夺去电子成为缺电子的阳离子活性中心，以便烯烃单体的配位插入。

After the SO_4~(2-) modification, the SO_4~(2-) was able to combine with Zr to form a chelate bidentate state which could largely facilitate an increase of the acid quantity

Cu／La／SO_4~(2-)／Al_2O_3催化剂和Cu／SO_4~(2-)／La_2O_3-ZrO_2-Al_2O_3催化剂都显示出了良好的水热稳定性，在10％水蒸气存在的条件下仍能保持较高的催化活性。

The samples from the Deji boninite are characteriz ed as being high Si, high Mg and low Ti.

得几蛇绿岩中玻安岩类样品具有高硅、高镁、低铁的特征，岩石中Zr、Yb和Y的含量也较低，具有明显的玻安岩特征。

TiO2 was in the form of magnesium aluminum titanate, Zr/Ti solid solution and rutile in the calefactive process.

在升温过程中，TiO_2表现为镁铝钛酸盐、锆钛固溶体和金红石相。

Influence of zirconium was distinct, sometimes even contradictious.

合金Zr含量不同，晶粒度有明显的变化。

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。