查询词典 catalysts

The mechanisms on low-temperature CO oxidation are reported by many researchers, and plentiful hypothesises are put forward on different catalysts.

CO氧化反应机理方面的相关报道较多，人们针对不同催化剂体系提出了各种假设。

The effects of electronic and steric effect of substituted groups, the structure of chiral catalysts and chiral reagents and the reaction system on optical activity of products are summarized.

文章概述了芳香酮取代基的电子效应与空间效应、手性催化剂和手性试剂的结构、反应体系等对产物光学活性的影响，以及全细胞酶、分离酶等不同生物催化体系中芳香酮结构对产物光学活性的影响，并展望了不对称还原的研究及应用前景。

Hydrolysis of 3-cyanopyridine in high temperature liquid water was determined without added catalysts in order to exploit green preparation technology of nicotinic acid and nicotinamide.

为了开发烟酸和烟酰胺的绿色制备方法以及探讨高温液态水中腈类物质的水解规律，研究了高温液态水中烟腈的无催化水解反应动力学。

The feasible methods and suggestions for the recovery of mercuric chloride catalysts were proposed.

根据其中是否添加氯化钡、氯化稀土等助剂，分为单一氯化汞触媒和复合氯化汞触媒

In China,the average mercury output was 1 100 t/a and total consumption was 1 100~1 500 t/a,700~900 t/a mercury was consumed in PVC industry and more than 560 t/a mercury was lost.The loss routes of mercuric chloride catalysts were analyzed.

氯化汞触媒是以氯化汞为活性物质，通过物理吸附的方式分布于载体活性炭微孔中的表面上，有气相吸附法[1]和浸渍吸附法两种生产工艺。

The main problem in catalytic combustion processes is to find suitable catalysts which have high stability and high activity. Magnesium oxide has a melting point of 2850℃.

如何得到大比表面、热稳定性好及催化活性高的甲烷燃烧催化剂是目前仍然未解决的问题。

For example, a lipophilic group at this locus can be used to create phase transfer catalysts or even hydrocarbon soluble polyelectrolytes.

例如，亲脂性组在这个轨迹可以用来建立相转移催化剂，甚至烃类可溶性聚电解质。

The effects of ZrO2 loading and different pretreatments on the activity of Cu-Zr-Ce-O catalysts were studied.

结果表明。掺杂ZrO2的Cu1Zr1Ce9Oδ催化剂在160～200℃之间具有99％以上的CO转化率和相对较高的选择性。

The different catalytic activity of the catalysts with various pretreatments is attributed to the variant population of Pd〓 sites.

预处理对催化活性的影响体现在活性中心Pd〓在催化剂中所占比例不同。

Hydrogenation of carbon dioxide to formic acid was investigated over these catalysts in CO2-expanded solvent and no by-product is detected.

在CO2&膨胀&的溶剂中，研究了此Ru基催化剂上的二氧化碳加氢制备甲酸的反应。

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。