turnover frequency

简明释义

交叉频率

英英释义

例句

1.The company's sales turnover frequency has increased significantly over the past year.

该公司的销售周转频率在过去一年中显著增加。

2.Researchers measured the turnover frequency of the enzyme to assess its activity level.

研究人员测量了酶的周转频率以评估其活性水平。

3.Understanding the turnover frequency of inventory helps businesses manage stock levels effectively.

了解库存的周转频率有助于企业有效管理库存水平。

4.The catalyst's turnover frequency is crucial for determining its efficiency in a chemical reaction.

催化剂的周转频率对于确定其在化学反应中的效率至关重要。

5.In the field of catalysis, a higher turnover frequency indicates better performance of the catalyst.

在催化领域，更高的周转频率表明催化剂的性能更好。

作文

In the world of chemistry and catalysis, the term turnover frequency plays a crucial role in understanding the efficiency of catalysts. It refers to the number of substrate molecules that a catalyst can convert into products per unit time, typically expressed in units like h^-1. This measurement is vital because it provides insights into how effective a catalyst is at facilitating chemical reactions. The higher the turnover frequency, the more efficient the catalyst is considered to be. For instance, in industrial processes where large volumes of chemicals are produced, catalysts with high turnover frequency are preferred. This efficiency not only reduces the cost of production but also minimizes waste and energy consumption. In the development of new catalysts, researchers often aim to increase the turnover frequency to enhance performance and sustainability. Moreover, the concept of turnover frequency is not limited to just one type of reaction or process. It can be applied across various fields, including environmental science, where catalysts are used to break down pollutants, and in pharmaceutical industries, where they facilitate the synthesis of complex drugs. Understanding the turnover frequency allows scientists and engineers to optimize conditions for reactions, such as temperature, pressure, and concentration, to achieve the desired outcomes effectively. In addition to its practical applications, turnover frequency also serves as a benchmark for comparing different catalytic materials. For example, when evaluating new metal catalysts, researchers will measure their turnover frequency against established benchmarks to determine if they offer any advantages. This comparative analysis is essential for advancing the field of catalysis and developing more effective materials. Furthermore, the turnover frequency can be influenced by several factors, including the nature of the catalyst, the substrate, and the reaction conditions. For instance, some catalysts may exhibit a high turnover frequency at optimal temperatures but perform poorly at lower or higher temperatures. Therefore, understanding these variables is critical for maximizing the efficiency of catalytic processes. In conclusion, the term turnover frequency is integral to the study and application of catalysis. It encapsulates the efficiency of a catalyst in converting reactants into products over time. By focusing on increasing the turnover frequency, researchers and industry professionals can develop better catalysts that lead to more sustainable and cost-effective chemical processes. As we continue to face challenges related to energy consumption and environmental impact, the importance of optimizing turnover frequency in catalysis cannot be overstated. It is a key factor that will drive innovation and improve practices across various industries, ultimately contributing to a more sustainable future.

在化学和催化的世界中，术语转化频率在理解催化剂效率方面发挥着至关重要的作用。它指的是催化剂每单位时间内能够将多少底物分子转化为产品，通常以h^-1为单位表示。这个测量是至关重要的，因为它提供了催化剂在促进化学反应方面有效性的洞察。转化频率越高，催化剂被认为越有效。例如，在生产大量化学品的工业过程中，优先选择具有高转化频率的催化剂。这种效率不仅降低了生产成本，还最小化了废物和能耗。在新催化剂的开发中，研究人员通常旨在提高转化频率以增强性能和可持续性。此外，转化频率的概念并不限于某一种反应或过程。它可以应用于各个领域，包括环境科学，其中催化剂用于分解污染物，以及制药行业，其中催化剂促进复杂药物的合成。理解转化频率使科学家和工程师能够优化反应条件，如温度、压力和浓度，以有效地实现所需结果。除了其实际应用外，转化频率还作为比较不同催化材料的基准。例如，在评估新金属催化剂时，研究人员将测量它们的转化频率与已建立的基准进行比较，以确定它们是否提供任何优势。这种比较分析对于推动催化领域的发展和开发更有效的材料至关重要。此外，转化频率可能受到几个因素的影响，包括催化剂的性质、底物和反应条件。例如，一些催化剂可能在最佳温度下表现出高转化频率，但在较低或较高温度下表现不佳。因此，理解这些变量对于最大化催化过程的效率至关重要。总之，术语转化频率是催化研究和应用的核心。它概括了催化剂在时间上将反应物转化为产品的效率。通过关注提高转化频率，研究人员和行业专业人士可以开发出更好的催化剂，从而导致更可持续和具有成本效益的化学过程。随着我们继续面临与能源消耗和环境影响相关的挑战，优化催化中的转化频率的重要性不容小觑。这是推动创新和改善各行业实践的关键因素，最终有助于实现更可持续的未来。