| 1. | Standard test method for vibratory packing density of large formed catalyst and catalyst particles
大颗粒成型催化剂和催化剂颗粒振动填充密度的标准试验方法 |
| 2. | Standard test method for vibratory packing density of formed catalyst particles and catalyst carriers
成型催化剂颗粒和催化剂载体振动填充密度的标准试验方法 |
| 3. | Standard test method for mechanically tapped packing density of fine catalyst particles and catalyst carrier particles
精细催化剂颗粒和催化剂载体颗粒的机械振实填充密度的标准试验方法 |
| 4. | Theoretical analysis of first - order isothermal consecutive diffusion reactions in industrially porous catalyst particles with fractional geometry symmetry model
分数几何对称模型理论分析多孔固体催化剂颗粒中的一级等温串连扩散反应 |
| 5. | All of obtained array composed of many layers separated by catalyst particles . those phenomenon may be due to non - uniform injection of feed . at last , a model of aligned carbon nanotube array were proposed
得出当温度逐渐升高时， cn 、纳米管的结构由“纳米铃”结构变为“竹节状”结构，得出在780时n掺杂量最高。 |
| 6. | When the growth getting higher , the migration rate of carbon atoms was increased , more carbon atoms would pass through catalyst particles to contribute the growth of carbon nanotubes , which increased the growth rate and also resulted in less defects in carbon nanotubes
在较高温度时，随着催化剂活性的提高以及碳原子在催化剂颗粒表面的迁移速率的增加，可提供更多的碳原子用于纳米碳管的有序生长，减少了缺陷的引入。 |
| 7. | In this thesis , the effects of the preparation methods of pt / c and pt - ru / c catalysts and the average diameter of the catalyst particles on the electrocatalytic performance of the catalysts for the ethanol oxidation are investigated using the electrochemical methods and xrd , tem , eds techniques
本论文用电化学方法及xrd 、 tem 、 eds等技术研究了pt c和pt - ru c催化剂的制备方法、催化剂的平均粒径等因素对催化剂对乙醇氧化的电催化活性的影响。 |
| 8. | In this thesis , we will focus on the nanotube structure and synthesis , including disorder multi - wall carbon nanotube , aligned multi - wall carbon nanotube array , cnx nanotube , and bcn nanotube . the effects of growth parameters , which provide scientific basis for pyrolysis of carbon nanotube , were studied systematically . furthermore , layered aligned multi - wall carbon nanotube arrays separate by catalyst particles were synthesized on the surrounding of reaction quartz tube by injection of xylene - ferrocene for the first time , which provided a chance for the accurate measure and potential use of carbon nanotubes
在对碳纳米管制备的基础上，全面系统地研究了碳纳米管的影响因素，对热解法制备碳纳米管确定了可供参考的制备工艺参数，在些基础上，首次成功地直接在反应炉内石英管壁上直接生长分层生长的定向碳纳米管，为纳米管的性质的测量提供了一定的基础，而且为定向碳纳米管在微电子学领域的应用提供可能性，能成功地实现定向纳米管的固定长度生长。 |
| 9. | Abstract : two important factors , the loss of the catalyst components and the change of the catalyst particle diameter , which lead to the decay of the catalyst for amination of fatty alcohols , were studied . the dimension analytic method is applied successfully to determine the relations among the components loss , the particle diame - ter and the times of the catalyst used in repeated experiments
文摘:对引起脂肪醇胺化用催化剂失活的重要因素? ?组分流失及粒径变化进行了研究，运用因次分析方法将催化剂的重复使用次数、组分流失及粒径等因素进行了关联，并取得了成功。 |
| 10. | To enlarge the application areas of the nano - structured materials , such as applications in magnetic recording media , the well - aligned carbon nano - structures encapsulating with magnetic catalyst particles were successfully synthesized on si wafer by ecr - cvd method with ch4 and h2 as gas sources
为了增加奈米结构材料之应用?围，例如制作磁记忆媒体，本研究以触媒辅助电子?旋共振化学气相沉积法( ecr - cvd )利用ch4及h2为反应气源，于矽基材上成功的合成镶埋有磁性颗粒的碳奈米材料。 |
