catalytic poison

简明释义

催化毒

英英释义

例句

1.The presence of lead in the fuel can act as a catalytic poison 催化毒物 in the catalytic converter, reducing its efficiency.

燃料中铅的存在可以作为催化转化器中的催化毒物 催化毒物，降低其效率。

2.To prevent catalytic poisons 催化毒物 from affecting the reaction, proper filtration methods must be employed.

为了防止催化毒物 催化毒物影响反应，必须采用适当的过滤方法。

3.Research is ongoing to find alternatives to metals that can serve as catalytic poisons 催化毒物 in various reactions.

研究正在进行，以寻找可以在各种反应中充当催化毒物 催化毒物的金属替代品。

4.Certain sulfur compounds are known to be catalytic poisons 催化毒物 that deactivate platinum catalysts in chemical reactions.

某些硫化合物被认为是使化学反应中铂催化剂失效的催化毒物 催化毒物。

5.In industrial processes, catalytic poisons 催化毒物 can significantly impact production yield and quality.

在工业过程中，催化毒物 催化毒物会显著影响生产产量和质量。

作文

Catalysts play a crucial role in accelerating chemical reactions without undergoing any permanent change themselves. However, the efficiency of catalysts can be severely hindered by substances known as catalytic poisons. These poisons bind to the active sites of catalysts, preventing them from facilitating reactions effectively. Understanding the impact of catalytic poisons is essential for optimizing industrial processes and improving the performance of catalytic systems.In various chemical industries, catalysts are employed to increase the rate of reactions, thereby saving time and energy. For instance, in the production of ammonia through the Haber process, iron serves as a catalyst. However, impurities in the feedstock can introduce catalytic poisons, such as sulfur compounds, which inhibit the catalyst's activity. This not only reduces the yield of ammonia but also necessitates more frequent replacement of the catalyst, leading to increased operational costs.The concept of catalytic poisons extends beyond just industrial applications; it is also relevant in environmental chemistry. Catalytic converters in automobiles are designed to reduce harmful emissions by converting carbon monoxide and nitrogen oxides into less harmful substances. However, certain elements, like lead and phosphorus, can act as catalytic poisons and compromise the efficiency of these converters. This highlights the importance of using high-quality fuels to minimize the introduction of such poisons.Moreover, the presence of catalytic poisons can lead to a deeper understanding of catalysis itself. By studying how these poisons interact with catalysts, researchers can gain insights into the mechanisms of catalysis and develop more robust catalysts that can withstand poisoning. This research is vital for creating sustainable solutions in the face of increasing global energy demands.In the field of renewable energy, catalytic poisons pose challenges in the development of efficient fuel cells. Platinum, a common catalyst used in fuel cells, can be affected by catalytic poisons like carbon monoxide, which binds strongly to the platinum surface and inhibits its activity. Researchers are actively exploring alternatives and modifications to platinum-based catalysts to enhance their resistance to poisoning, thereby improving fuel cell performance.In conclusion, catalytic poisons represent a significant challenge in the field of catalysis, impacting both industrial processes and environmental applications. Understanding their effects is crucial for optimizing catalytic systems, enhancing sustainability, and advancing scientific knowledge. As we continue to innovate and seek cleaner energy solutions, addressing the issue of catalytic poisons will remain a key focus for researchers and industry professionals alike. The ongoing exploration of new materials and methods to mitigate the effects of these poisons will undoubtedly contribute to the future of efficient and sustainable chemical processes.

催化剂在加速化学反应中发挥着至关重要的作用，而不发生任何永久性变化。然而，催化剂的效率可能会受到被称为催化毒物的物质的严重影响。这些毒物与催化剂的活性位点结合，阻止其有效促进反应。理解催化毒物的影响对于优化工业过程和提高催化系统的性能至关重要。在各种化学工业中，催化剂被用来提高反应速率，从而节省时间和能源。例如，在通过哈伯法生产氨的过程中，铁作为催化剂。然而，原料中的杂质可能会引入如硫化合物等催化毒物，抑制催化剂的活性。这不仅降低了氨的产量，还需要更频繁地更换催化剂，导致运营成本增加。催化毒物的概念不仅限于工业应用；它在环境化学中也具有相关性。汽车中的催化转换器旨在通过将一氧化碳和氮氧化物转化为较少有害的物质来减少有害排放。然而，某些元素，如铅和磷，可能作为催化毒物，损害这些转换器的效率。这强调了使用高质量燃料以尽量减少此类毒物引入的重要性。此外，催化毒物的存在可以加深我们对催化本身的理解。通过研究这些毒物如何与催化剂相互作用，研究人员可以深入了解催化机制，并开发出能够抵御中毒的更强大的催化剂。这项研究对于在全球能源需求不断增加的背景下创造可持续解决方案至关重要。在可再生能源领域，催化毒物在高效燃料电池的发展中构成挑战。铂是一种常用于燃料电池的催化剂，可能受到如一氧化碳等催化毒物的影响，这种物质与铂表面结合紧密，抑制其活性。研究人员正在积极探索替代品和铂基催化剂的改进，以增强其对中毒的抵抗力，从而提高燃料电池的性能。总之，催化毒物在催化领域代表了一个重大挑战，影响着工业过程和环境应用。理解它们的影响对于优化催化系统、增强可持续性以及推进科学知识至关重要。随着我们继续创新并寻求更清洁的能源解决方案，解决催化毒物的问题将始终是研究人员和行业专业人士关注的重点。持续探索新材料和方法以减轻这些毒物的影响无疑将为高效和可持续的化学过程的未来做出贡献。