catalysis

简明释义

英[kəˈtæləsɪs]美[kəˈtæləsɪs]

n. 催化作用；刺激作用

复 数 c a t a l y s e s

英英释义

单词用法

同义词

反义词

例句

1.I went into the archive of Elsevier's Applied Catalysis.

我进入了爱思唯尔应用催化的档案室。

2.The catalysis of big pore strong acid resin for 1,4-butanediol dehydration to tetrahydrofuran is investigated.

考察了大孔强酸性树脂对1，4 丁二醇脱水制四氢呋喃的催化作用。

3.In oil refining industry curing catalysis decomposition.

炼油工业中的硫化催化裂解。

4.The catalysis of lipase in reversed micelles systems was showed in this review.

该综述对逆胶束系统脂肪酶的催化作了较详细的叙述。

5.When compared with aqua ammonia liquid phase catalysis, it has also a marked superiority.

该法与氨水液相催化法相比，也具有明显的优越性。

6.In combination of corresponding new process, catalysis and separation is integrated.

结合相应的新工艺，实现了催化分离一体化。

7.Metal hydride compounds play a central role in coordination catalysis.

过渡金属氢化物在络合催化中占有重要的地位。

8.In the lab, we used an enzyme as a catalysis 催化剂 to speed up the reaction.

在实验室中，我们使用了一种酶作为催化剂来加快反应。

9.The process of photosynthesis in plants is a great example of natural catalysis 催化作用.

植物中的光合作用是自然催化作用的一个很好的例子。

10.Industrial processes frequently utilize catalysis 催化作用 to enhance efficiency and reduce costs.

工业过程常常利用催化作用来提高效率并降低成本。

11.The catalysis 催化作用 of certain metals can significantly increase reaction rates.

某些金属的催化作用可以显著提高反应速率。

12.The development of new drugs often relies on catalysis 催化作用 to produce complex molecules.

新药的开发通常依赖于催化作用来生产复杂的分子。

作文

In the realm of chemistry, the term catalysis refers to the process by which the rate of a chemical reaction is increased by the presence of a substance known as a catalyst. A catalyst is not consumed in the reaction, meaning it can be used repeatedly without undergoing permanent change. This remarkable property of catalysts has made catalysis an essential concept in both industrial applications and biological processes. For instance, enzymes, which are biological catalysts, facilitate numerous reactions in living organisms, enabling them to function efficiently. Without these catalysts, many biochemical reactions would occur too slowly to sustain life. The significance of catalysis extends beyond biology; it plays a pivotal role in various industrial processes. In the production of ammonia through the Haber process, iron serves as a catalyst to accelerate the reaction between nitrogen and hydrogen gases. This process is crucial for producing fertilizers that support global agriculture. Similarly, in the petroleum industry, catalysis is employed to break down large hydrocarbon molecules into more useful products such as gasoline and diesel fuel. The use of catalysts not only enhances the efficiency of these processes but also reduces energy consumption and waste production, making them more environmentally friendly.Moreover, the study of catalysis has led to significant advancements in green chemistry. Researchers are continuously seeking new catalysts that can operate under milder conditions or utilize renewable resources. For example, photocatalysis, a type of catalysis that uses light to activate the catalyst, has gained attention for its potential in energy conversion and environmental remediation. By harnessing sunlight, photocatalysts can facilitate chemical reactions that convert CO2 into valuable fuels or degrade pollutants in water, contributing to a more sustainable future.The mechanisms behind catalysis are diverse and fascinating. Catalysts work by providing an alternative pathway for a reaction with a lower activation energy, which is the minimum energy required for the reactants to transform into products. This alternative pathway allows more molecules to collide with enough energy to react, thereby increasing the overall reaction rate. Understanding these mechanisms is crucial for scientists and engineers who aim to design more effective catalysts for specific reactions.In conclusion, catalysis is a fundamental concept in chemistry that has far-reaching implications in various fields, from biology to industrial manufacturing and environmental science. The ability of catalysts to enhance reaction rates without being consumed makes them invaluable tools in both natural and synthetic processes. As we continue to explore the intricacies of catalysis, we unlock new possibilities for innovation and sustainability, paving the way for a better understanding of the world around us. The ongoing research in this area promises to yield even more efficient and eco-friendly solutions to some of the most pressing challenges facing humanity today.

在化学领域，术语催化指的是通过存在一种称为催化剂的物质来加速化学反应速率的过程。催化剂在反应中不会被消耗，这意味着它可以重复使用而不会发生永久性变化。这种催化剂的显著特性使得催化成为工业应用和生物过程中的一个重要概念。例如，酶作为生物催化剂，促进了生物体内众多反应，使其能够高效运作。如果没有这些催化剂，许多生化反应将发生得太慢，无法维持生命。催化的重要性不仅限于生物学；它在各种工业过程中也发挥着关键作用。在通过哈伯法生产氨的过程中，铁作为催化剂加速氮气和氢气之间的反应。这个过程对于生产支持全球农业的肥料至关重要。同样，在石油工业中，催化被用来将大型碳氢化合物分解成更有用的产品，如汽油和柴油。催化剂的使用不仅提高了这些过程的效率，还减少了能量消耗和废物产生，使其更加环保。此外，催化的研究推动了绿色化学的重大进展。研究人员不断寻求在温和条件下运作或利用可再生资源的新催化剂。例如，光催化是一种利用光激活催化剂的催化类型，因其在能量转换和环境修复中的潜力而受到关注。通过利用阳光，光催化剂可以促进将二氧化碳转化为有价值燃料或降解水中污染物的化学反应，为更可持续的未来做出贡献。催化背后的机制是多样而迷人的。催化剂通过提供一种具有较低活化能的替代反应路径来工作，而活化能是反应物转变为产品所需的最低能量。这种替代路径使得更多的分子以足够的能量碰撞以进行反应，从而提高整体反应速率。理解这些机制对科学家和工程师来说至关重要，他们旨在为特定反应设计更有效的催化剂。总之，催化是化学中一个基本概念，在生物学、工业制造和环境科学等各个领域都有深远的影响。催化剂在不被消耗的情况下增强反应速率的能力使其成为自然和合成过程中的宝贵工具。随着我们继续探索催化的复杂性，我们解锁了创新和可持续发展的新可能性，为更好地理解我们周围的世界铺平了道路。该领域的持续研究承诺将为解决人类面临的一些最紧迫的挑战提供更加高效和环保的解决方案。