powdered catalyst

简明释义

粉状催化剂

英英释义

例句

1.The efficiency of the reaction improved significantly with the introduction of a powdered catalyst.

引入一个粉末催化剂后，反应的效率显著提高。

2.The reaction was accelerated by the addition of a powdered catalyst.

通过添加一个粉末催化剂，反应速度得到了加快。

3.In the laboratory, we used a powdered catalyst to increase the yield of the product.

在实验室中，我们使用了一个粉末催化剂来提高产量。

4.A powdered catalyst can often be reused multiple times without significant loss of activity.

一个粉末催化剂通常可以多次重复使用，而不会显著失去活性。

5.The powdered catalyst was mixed thoroughly with the reactants before heating.

在加热之前，粉末催化剂与反应物彻底混合。

作文

In the field of chemistry, catalysts play a crucial role in facilitating chemical reactions. Among various types of catalysts, the powdered catalyst (粉末催化剂) has gained significant attention due to its unique properties and advantages in various industrial applications. A powdered catalyst is typically composed of fine particles that increase the surface area available for reactions, thereby enhancing the overall efficiency of the catalytic process.One of the primary benefits of using a powdered catalyst (粉末催化剂) is its ability to provide a greater interaction between the reactants and the catalyst itself. In many chemical reactions, the rate at which products are formed can be significantly improved by maximizing the contact between the reactants and the catalyst. The small particle size of a powdered catalyst allows for a higher surface area-to-volume ratio, which facilitates more effective collisions between molecules, leading to faster reaction rates.Moreover, powdered catalysts (粉末催化剂) are often used in heterogeneous catalysis, where the catalyst exists in a different phase than the reactants. This is particularly advantageous in reactions involving gases or liquids, as the powdered form can easily disperse throughout the reaction medium, ensuring that the catalyst is readily available to interact with the reactants. This characteristic makes powdered catalysts (粉末催化剂) ideal for various processes, including petrochemical refining, environmental applications, and the production of fine chemicals.Another important aspect of powdered catalysts (粉末催化剂) is their regeneration and reusability. Many powdered catalysts can be recovered after a reaction and reused multiple times without significant loss of activity. This not only reduces waste but also contributes to cost savings in industrial applications. The ability to regenerate powdered catalysts (粉末催化剂) is essential for sustainable practices in chemical manufacturing, as it minimizes the need for fresh catalyst materials and helps lower the overall environmental impact.However, using powdered catalysts (粉末催化剂) also comes with its challenges. The fine particles can sometimes agglomerate, leading to a decrease in surface area and catalytic activity over time. To mitigate this issue, researchers are continuously exploring ways to enhance the stability and performance of powdered catalysts through various methods, such as modifying their composition or employing support materials that can help maintain their dispersion during reactions.In conclusion, powdered catalysts (粉末催化剂) represent a vital component in the advancement of chemical processes across many industries. Their ability to increase reaction rates, facilitate interactions between reactants, and promote sustainability through reusability makes them an invaluable resource in modern chemistry. As research continues to evolve, the development of more efficient and stable powdered catalysts (粉末催化剂) will undoubtedly lead to further innovations and improvements in chemical manufacturing and environmental protection.