adsorption barrier

简明释义

吸附障;

英英释义

例句

1.In our experiments, we observed that increasing temperature can decrease the adsorption barrier 吸附障碍 for certain materials.

在我们的实验中，我们观察到提高温度可以降低某些材料的吸附障碍 吸附障碍。

2.The adsorption barrier 吸附障碍 affects the rate at which pollutants are removed from water.

在水中去除污染物的速率受到吸附障碍 吸附障碍的影响。

3.The presence of an adsorption barrier 吸附障碍 can significantly reduce the efficiency of catalysts in chemical reactions.

在化学反应中，吸附障碍 吸附障碍的存在可能会显著降低催化剂的效率。

4.Researchers are studying how to lower the adsorption barrier 吸附障碍 to improve gas sensor performance.

研究人员正在研究如何降低吸附障碍 吸附障碍以提高气体传感器的性能。

5.Nanoparticles often face a high adsorption barrier 吸附障碍 when interacting with biological systems.

纳米颗粒在与生物系统相互作用时通常面临较高的吸附障碍 吸附障碍。

作文

The concept of an adsorption barrier is crucial in the field of surface science and catalysis. It refers to the energetic hurdle that a molecule must overcome to adhere to a surface. Understanding this phenomenon is essential for various applications, including the design of catalysts, the development of sensors, and the improvement of material properties. When a gas or liquid interacts with a solid surface, the process of adsorption occurs, which can be influenced by numerous factors such as temperature, pressure, and the nature of the surface itself. In many cases, the adsorption barrier is determined by the interaction forces between the adsorbate (the molecule being adsorbed) and the substrate (the surface). These forces can include van der Waals forces, hydrogen bonding, and ionic interactions. A higher adsorption barrier indicates that more energy is required for the adsorbate to attach to the surface, which can significantly affect the efficiency of catalytic reactions. For instance, in heterogeneous catalysis, where reactions occur on the surface of solid catalysts, a lower adsorption barrier often leads to increased reaction rates. Researchers employ various techniques to study and measure the adsorption barrier. One common method is temperature-programmed desorption (TPD), which allows scientists to observe how molecules desorb from a surface as the temperature increases. By analyzing the data obtained from TPD experiments, researchers can infer the strength of the interactions at play and estimate the adsorption barrier. Additionally, computational methods, such as density functional theory (DFT), provide insights into the molecular dynamics involved in the adsorption process. The implications of understanding the adsorption barrier extend beyond academic research; they have significant industrial applications as well. For example, in the field of environmental science, knowledge of adsorption barriers can aid in the design of materials that effectively capture pollutants from air and water. Similarly, in the pharmaceutical industry, controlling the adsorption barrier can enhance drug delivery systems, ensuring that medications are released at the right time and place within the body. Moreover, advancements in nanotechnology have opened new avenues for manipulating adsorption barriers. Nanomaterials often exhibit unique surface properties that can be tailored to achieve desired adsorption characteristics. This ability to engineer surfaces at the nanoscale has led to the creation of highly efficient catalysts and sensors that outperform their conventional counterparts. In conclusion, the adsorption barrier plays a pivotal role in various scientific and industrial fields. Its understanding not only enhances our fundamental knowledge of surface interactions but also drives innovation in technology and environmental solutions. As research continues to evolve, the manipulation of adsorption barriers will likely lead to transformative advancements in multiple domains, highlighting the importance of this concept in both theoretical and practical applications.

“吸附障碍”这一概念在表面科学和催化领域至关重要。它指的是分子必须克服的能量障碍，以便附着在表面上。理解这一现象对于多种应用至关重要，包括催化剂的设计、传感器的开发以及材料性能的改善。当气体或液体与固体表面相互作用时，吸附过程发生，这一过程会受到温度、压力和表面性质等众多因素的影响。在许多情况下，“吸附障碍”由吸附物（被吸附的分子）与基底（表面）之间的相互作用力决定。这些力可以包括范德华力、氢键和离子相互作用。较高的“吸附障碍”表示吸附物附着到表面所需的能量更多，这可能显著影响催化反应的效率。例如，在异相催化中，反应发生在固体催化剂的表面，较低的“吸附障碍”通常会导致反应速率的增加。研究人员采用各种技术来研究和测量“吸附障碍”。一种常见的方法是温度程序脱附（TPD），该方法允许科学家观察分子在温度升高时如何从表面脱附。通过分析从TPD实验获得的数据，研究人员可以推断出相互作用的强度，并估算“吸附障碍”。此外，计算方法如密度泛函理论（DFT）也提供了关于吸附过程中的分子动力学的深入见解。理解“吸附障碍”的意义不仅限于学术研究；它在工业应用中也具有重要意义。例如，在环境科学领域，了解“吸附障碍”可以帮助设计有效捕获空气和水中污染物的材料。同样，在制药行业，控制“吸附障碍”可以增强药物递送系统，确保药物在体内适时适地释放。此外，纳米技术的进步为操控“吸附障碍”开辟了新的途径。纳米材料通常表现出独特的表面特性，可以根据需要进行调整，以实现所需的吸附特性。这种在纳米尺度上工程化表面的能力导致了高效催化剂和传感器的创造，这些催化剂和传感器的性能优于传统产品。总之，“吸附障碍”在多个科学和工业领域发挥着关键作用。它的理解不仅增强了我们对表面相互作用的基本知识，还推动了技术和环境解决方案的创新。随着研究的不断发展，操控“吸附障碍”可能会带来多个领域的变革性进展，突显了这一概念在理论和实践应用中的重要性。