查询词典 catalysts

In our study, two novel catalysts NiPd and FeC were discovered for CNT growth at low temperature.

本论文中，我们发现两种新颖的催化金属镍钯及铁碳合金适合在低温下成长奈米碳管。

The influence of CO2 on the reaction is less significant than that of other traditional ferrochrome shift catalysts, which, very possibly, results from the diffusion or the behavior of Cu in this catalyst.

从动力学方程可以得出该高温变换催化剂内扩散影响严重；该催化剂上CO2组分对反应速率的影响与其它铁系变换催化剂相比变小。

Any of a group of enzymes containing flavin bound to protein and acting as dehydrogenation catalysts in biological reactions.

黄素蛋白由黄素与蛋白质相结合的任一类脱氢酶，在生化反应中作为脱氢反应的催化剂

By means of the deconvolution of the MWD curves by multiple Flory functions, we found that the reason was that introducing MgF_2 into the MgCl_2 support did not change the number of active center types existed in the catalysts.

掺杂MgF_2对聚乙烯的分子量分布的影响较小，对聚乙烯的GPC曲线进行Flory最可几分布函数的分峰拟合结果表明，掺杂MgF_2对催化剂活性中心种类数没有影响。

The effects of fluorination ratio、 specific surface area and pore volume of the catalysts on their activities were demonstrated.

研究了催化剂前驱体的热行为，催化剂的晶相以及催化剂的氟化度，比表面积，孔容对催化活性的影响。

Fractal and fractal dimension theories applied on catalysts were introduced in this paper.

介绍了分形和分形维数在催化剂研究中的应用。

Three types of catalysts, ZSM-5, Al2O3, SiO2-Al2O3, were prepared and their catalytic performances for the reaction of furan with ammonia to product pyrrole was studied.

本文制备了ZSM-5、Al2O3 、SiO2-Al2O3三种类型的固体酸催化剂，并通过在常压固定床反应器中进行的氨与呋喃合成吡咯的反应对三种催化剂的性能进行了研究。

Various approaches were used to confirm the validation of Ar glow discharge plasma reduction of supported Pt catalysts.

初步研究表明等离子体处理提高了高温还原以后表层的Pt浓度，增强了Pt-ZrO_2的相互作用。

We used BET,FT-IR,XRD,TPR techniques to investigate the compression strength, the BET and the pore structure of catalysts by changing some factors such as the glutinousness and concentration of adhesive ,the ageing time and temperature and so on.

为解决催化剂侧压强度的不足，我们在实验室进行了超细镍基负载型催化剂实验室小试成型工艺条件研究，用硅溶胶及Ni~(2+)-硅溶胶两种不同的胶粘剂进行挤条成型，通过BET、FT-IR、XRD、TPR等技术考察了催化剂在成型过程中，胶粘剂的浓度、粘度，湿／干粉比，催化剂老化时间，以及焙烧温度等因素对催化剂的强度以及催化剂的比表面积和孔结构的影响。

The effect of different reaction conditions,such as catalyst concentration,molar ratio of reactants,reaction temperature,reaction time,on the coupling reaction of trioxane and methyl formate synthesizing methyl glycolate and methyl methoxy acetate using sulfuric acid as catalyst has been studied.Through the analysis for the yield of products and system pressure,and comparison with other different acidity catalysts,we considered that the activation of formaldehyde was the control step of reaction rate to the...

以硫酸为催化剂，研究了三聚甲醛与甲酸甲酯偶联合成乙醇酸甲酯和甲氧基乙酸甲酯的反应中，催化剂浓度、原料配比、反应温度、反应时间等条件对反应过程的影响，通过对产物收率和系统压力变化的分析，并结合与其它不同酸强度催化剂的对比，得到甲醛的活化是偶联反应的速率控制步骤，催化剂的酸强度决定其对甲醛的活化能力，是影响偶联反应的主要因素。

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。