adsorbed gas

简明释义

吸附气;

英英释义

例句

1.Researchers are studying how different materials affect the quantity of adsorbed gas 吸附气体 in their structures.

研究人员正在研究不同材料如何影响其结构中吸附气体的数量。

2.The adsorbed gas 吸附气体 can significantly alter the physical properties of a material.

吸附气体可以显著改变材料的物理性质。

3.The process of capturing adsorbed gas 吸附气体 can improve the efficiency of gas storage systems.

捕获吸附气体的过程可以提高气体储存系统的效率。

4.The scientist measured the amount of adsorbed gas 吸附气体 on the surface of the catalyst.

科学家测量了催化剂表面上吸附气体的量。

5.In the experiment, the adsorbed gas 吸附气体 was released when the temperature increased.

在实验中，当温度升高时，吸附气体被释放出来。

作文

The study of gases and their interactions with solid surfaces is a fundamental aspect of physical chemistry. One important concept in this field is that of adsorbed gas, which refers to gas molecules that adhere to the surface of a solid material. This phenomenon occurs due to various forces, including van der Waals forces and chemical bonding, which allow the gas molecules to stick to the surface rather than being dispersed in the surrounding environment. Understanding adsorbed gas is crucial for numerous applications, including catalysis, environmental science, and material engineering.In catalysis, for example, many reactions require the presence of a catalyst, which often involves adsorbed gas. When a gas is adsorbed onto a catalyst's surface, it can interact more readily with other reactants, leading to a higher reaction rate. This is particularly important in industrial processes where efficiency is key. By optimizing the conditions under which gases are adsorbed, chemists can enhance the performance of catalysts, making reactions faster and more cost-effective.Moreover, the concept of adsorbed gas is also significant in environmental science. Pollutants in the air, such as carbon dioxide and volatile organic compounds, can be captured by various materials through adsorption. For instance, activated carbon is commonly used to filter out harmful gases from the atmosphere. The effectiveness of these materials in trapping adsorbed gas depends on their surface area and the nature of their surface chemistry. By understanding how gases are adsorbed, scientists can develop better filtration systems to improve air quality.In the realm of material engineering, the properties of materials can be influenced by the presence of adsorbed gas. For instance, in the development of sensors, the sensitivity of a sensor can be significantly affected by the gases that are adsorbed onto its surface. Engineers often design sensors that can selectively adsorb specific gases, allowing for precise measurements of concentrations in various environments. This capability is essential in monitoring air pollution, detecting hazardous substances, and even in medical diagnostics.Furthermore, the behavior of adsorbed gas can vary depending on temperature and pressure conditions. At higher temperatures, gas molecules have more kinetic energy, which can lead to desorption, where the gas molecules detach from the solid surface. Conversely, at lower temperatures, the adsorption process is favored, and more gas molecules may adhere to the surface. This temperature dependence is an important factor to consider in industrial applications, where controlling the conditions can optimize the desired outcomes.In conclusion, the concept of adsorbed gas plays a vital role in various scientific fields, from catalysis to environmental science and material engineering. By gaining a deeper understanding of how gas molecules interact with solid surfaces, researchers and engineers can innovate and improve technologies that benefit society. Whether it's enhancing catalytic processes, developing better filtration systems, or creating sensitive sensors, the study of adsorbed gas continues to be a rich area of exploration with significant practical implications.

气体及其与固体表面相互作用的研究是物理化学中的一个基本方面。一个重要的概念是吸附气体，它指的是粘附在固体材料表面上的气体分子。这种现象是由于多种力的作用，包括范德瓦尔斯力和化学键，使得气体分子能够粘附在表面，而不是在周围环境中分散。理解吸附气体对于众多应用至关重要，包括催化、环境科学和材料工程。例如，在催化中，许多反应需要催化剂的存在，而催化剂通常涉及吸附气体。当气体被吸附到催化剂的表面时，它可以更容易地与其他反应物相互作用，从而导致更高的反应速率。这在工业过程中尤为重要，因为效率是关键。通过优化气体被吸附的条件，化学家可以提高催化剂的性能，使反应更快、更具成本效益。此外，吸附气体的概念在环境科学中也具有重要意义。空气中的污染物，如二氧化碳和挥发性有机化合物，可以通过各种材料被捕获。例如，活性炭通常用于过滤空气中的有害气体。这些材料在捕获吸附气体方面的有效性取决于它们的表面积和表面化学性质。通过理解气体是如何被吸附的，科学家可以开发出更好的过滤系统，以改善空气质量。在材料工程领域，材料的特性可能会受到吸附气体存在的影响。例如，在传感器的开发中，传感器的灵敏度可能会受到吸附在其表面上的气体的显著影响。工程师通常设计能够选择性吸附特定气体的传感器，从而允许在各种环境中精确测量浓度。这一能力在监测空气污染、检测危险物质甚至医学诊断中至关重要。此外，吸附气体的行为可能会因温度和压力条件而异。在较高的温度下，气体分子具有更多的动能，这可能导致脱附，即气体分子从固体表面脱离。相反，在较低的温度下，吸附过程更有利，更多的气体分子可能会粘附在表面。这种温度依赖性是工业应用中需要考虑的重要因素，通过控制条件可以优化所需的结果。总之，吸附气体的概念在催化、环境科学和材料工程等多个科学领域中扮演着至关重要的角色。通过深入理解气体分子如何与固体表面相互作用，研究人员和工程师可以创新并改进有益于社会的技术。无论是增强催化过程、开发更好的过滤系统，还是创建敏感的传感器，吸附气体的研究仍然是一个富有探索价值的领域，具有重要的实际意义。