The large volumes of natural gas production mean that the processes currently used in the oil industry no longer meet such demand. Therefore, there is an expectation that adsorption processes will reach up to 200 bar in order to process the large volume of natural gas produced. However, it is not known if the materials used in this process would remain stable after being subjected to high pressures. In this way, sorption studies of host molecules such as CO₂ at high pressures are important to understand the structural, thermal and chemical changes of this material. Therefore, the objective of this work is to perform stability experiments with MOF-177 using CO₂ in an equilibrium cell at a fixed pressure of 200 bar at different temperatures of 20 °C, 40 °C and 60 °C for 12 h. The X-ray diffraction measurements showed that the metal-organic structure underwent irreversible amorphization with increasing temperature. The samples treated at 20 °C and 40 °C did not show significant surface area changes. However, at 60 °C there was an expressive reduction. All samples showed thermal stability up to 400 °C. By means of the FT-IR and SEM analysis, it was possible to observe that there was no chemical and morphological change in the MOF-177 and in the samples submitted to high pressure at different temperatures.

天然气的大量生产意味着石油工业中目前使用的工艺不再满足这种需求。因此，人们期望吸附过程将达到200  bar，以便处理大量天然气。但是，尚不知道该方法中使用的材料在承受高压后是否会保持稳定。这样，在高压下对宿主分子（例如CO _2）的吸附研究对于理解这种材料的结构，热和化学变化非常重要。因此，这项工作的目的是在平衡池中以200 bar的固定压力在20°C的不同温度下使用CO ₂在MOF-177上进行稳定性实验 。 分别在°C，40  °C和60  °C下放置12 小时。X射线衍射测量表明，金属有机结构随着温度的升高而发生不可逆的非晶化。在20  °C和40  °C下处理的样品没有显示出明显的表面积变化。但是，在60  °C时表现出降低的趋势。所有样品在高达400  °C的温度下均显示出热稳定性。通过FT-IR和SEM分析，可以观察到MOF-177和在不同温度下承受高压的样品中没有化学和形态变化。