查询词典 TIO

We transformed RMgBr into R-Ti derivatives with the production of byproduct MgBrO~(i-Pr at the same time, but we didn\'t need romove the Mg salt by centrifugation or chelating reagents, for bis[2-(N,N-dimethylamino)ethyl] ether could chelate with Mg atom and thereby reduced the Louis acidity of Mg salt, so we used R-Ti derivatives produced in situ to alkylate the aldehydes induced by BINOL-Ti complexes..

我们通过利用TiO~(i-Pr_4使格氏试剂转化成烷基钛，同时产生具有亲核加成促进作用的副产物MgBrO~(i-Pr，由于BDMAEE能与MgBrO~(i--Pr络合降低其路易酸活性，所以不需要离心或者借助络合试剂完全除去镁盐，而使用原位生成的烷基钛在BINOL-Ti诱导下对醛进行不对称加成。

The effect of crystal form on photocatalysis property is studied. The results show that: Function of anatase TiO 2 is best.

考察了晶型对光催化剂性能的影响，结果表明，锐钛矿型TiO2的催化性能最好。

RD results showed that the silver ions doping could inhibit the formation of brookite TiO〓 to some extent.

PS研究表明，银离子掺杂前后，催化活性的变化与其表面的低价钛离子缺陷的浓度变化密切相关。

Brookite TiO〓 particles have no absorption within the UV-Vis band, they can not be used as photocatalyst.

板钛矿型二氧化钛在整个紫外可见区域没有吸收，因而不可能作为光催化剂使用。

It is easy to prepare TiO〓 nanoparticles with anatase, rutile, brookite and the mixture of anatase and rutile structures respectively through control of temperature and the ratio of /.

控制/比和反应温度可方便地制备锐钛型、金红石型、板钛矿型以及金红石型与锐钛型混合二氧化钛颗粒。

The structure data of simulation results at ambient temperature were agree well with the experiments, and the thermal expansivity and bulk modulus of TiO〓 and K〓Ti〓O〓 were obtained.

常温下模拟得到的结构参数能很好的和实验数据吻合。模拟了随温度和压力变化造成的热膨胀系数和体积弹性模量，对本实验室合成的六钛酸钾晶须的性能进行了预测。

In the asymmetric hydrogenation of ethyl pyruvate catalyzed by 0 5% Rh/PVP TiO 2, the chiral modifier cinchonidine not only induces the enantioselectivity, but also accelerates the reaction rate greatly.

研究了辛可尼定作手性修饰剂修饰的负载型纳米铑簇合物催化剂(0 5 %Rh/PVP TiO2 )催化丙酮酸乙酯不对称氢化反应，在该反应中手性修饰剂辛可尼定不仅具有对产物生成的手性诱导作用，而且对反应具有明显加速作用；在优化反应条件后，反应的TOF和对映选择性分别可以达到 5 8 0min-1和

The photocatalytic degradation process of azo dye Congo Red was investigated in aqueous suspension of TiO 2, and the optimum reaction conditions were determined.

通过研究在间歇悬浮体系中直接偶氮染料刚果红在水中的光催化降解过程，确定了最佳降解条件。

The formation of the precursor for nucleation and growth of TiO〓 particles is slow from the complex. So the formation of TiO〓 particles is a diffusion-controlled process described as the Lamer model.

虽然水解料液中钛的浓度较高，但是以络合物的形式存在，络合物转变成成核前驱体的反应是缓慢的，使成核和生长过程在扩散控制下按Lamer模型的方式完成。

A novel process for the deposition of TiO 2 at room temperature using rutile TiO 2 nanopowders synthesized by peptizing the amorphous Ti 4 in aqueous solutions was studied.

利用回流胶溶在液相中一步合成金红石型TiO2 纳米粉体，并采用纳米粉液相成膜新方法，低温下制备出纳米金红石相TiO2 薄膜，通过XRD、TEM及循环伏安法对TiO2 纳米粉及薄膜的性能进行了表征。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。