查询词典 catalysis

Layered double hydroxides are sort of anionic layered materials with anion exchanging ability and show wide application prospects in the fields of catalysis, pharmaceutical, environmental protection and functional additive agents etc.

水滑石类化合物是一类阴离子型层状功能材料，因其层间阴离子的可交换性，调整层板结构和组成发生变化，从而使之在催化、制药、环保、功能助剂等领域显示出广阔的应用前景。

Use semiconductor to adulterate to also can improve the smooth catalysis performance of TiO_2 film well, among them with SnO_2 effect best.

采用半导体掺杂也能很好地提高TiO_2薄膜的光催化性能，其中以SnO_2效果最好。

This type of catalysis advantageously replaces the conventional catalysts based on mercury salt.

这类催化有利地代替以汞盐为主要成分的通常催化剂。

The species distribution in hydrolytic polymeric aluminum solutions is a research focus in the fields of analysis, catalysis, agrology, geochemistry, new materials, environmental science, biotoxicology, etc..

水解聚合铝形态一直是分析、催化、土壤、地球化学、新材料、环境科学和生物毒理学等众多领域研究的前沿和热点。

It can turn the alkane into the alcohol and the alkene into the derivative of ethylene oxide in air at room temperature by its catalysis.

该项研究不仅有助于人们了解细胞色素P-450的催化机理，而且在有机合成和医学上将具有广泛的应用前景。

Through the in-situ reduction with KBH_4, a series of the silver(0)-alkylamine complexes has been obtained, the special structure and morphology of such kind of complexes will find wide application in the construction of catalysis, photonic or electronic materials.

通过硼氢化钠还原后，获得了系列以金属银为层板的海面状复合物，具有特殊结构的该类化合物可能在催化，光电材料等领域具有广泛的用途。

Allyl glycidyl ether was synthesized from allyl alcohol and epichlorohydrin by phase transfer catalysis.

以烯丙醇和环氧氯丙烷为原料，采用相转移催化法，合成了烯丙基缩水甘油醚。

This thesis focused mainly on studying the role of planar chirality in asymmetric catalysis, synthesizing novel ferrocene ligands and applying them to palladium-catalyzed allylic substitution reactions.

本论文主要是研究二茂铁平面手性在不对称催化反应中的作用，设计合成新型二茂铁配体及其在钯催化烯丙基取代反应中的应用。

The catalytic effect of different modified molecular si eves were studied for synthesis amyl acetate, the results indicate that SO 2- 4 /FeZSM have go od catalysis activity to esterification .The effect of the ratio of reactants, the amoun t of the catalyst and the reaction time were also investigated.

考察不同改性分子筛催化合成乙酸戊酯的催化活性，结果表明：改性SO2 - 4/FeZSM对合成酯的催化作用较好，并讨论了以该催化剂催化酯化时原料配比、催化剂用量、反应时间等因素与酯化反应的关系。

The diamyl glutarate was synthesized by esterification of n- amyl alcohol and glutaric anhydride separated from dicarboxylic acid by catalysis of silicotungstic acid.

以正戊醇和从二羧酸中分离出的戊二酸酐为原料，以硅钨杂多酸为催化剂进行酯化反应，合成戊二酸二正戊酯。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。