In this work, the dependence of the morphology and stability of the extended solid of carbon monoxide (CO) is correlated to the rate of transformation from the molecular CO to extended solid of CO using optical imaging, photoluminescence, Raman spectroscopy, and X-ray diffraction. The analyses show the rate and pressure of the transformation to be strongly controlled by catalytic effects, both chemical and optical. In a larger volume per reaction area, the transformation was found to require either a longer time at an elevated pressure or a higher pressure compared to a sample synthesized in a smaller volume per reaction area, leading to the conclusion that the transformation rate is slower for a sample in a larger volume per reaction area. A faster rate of transformation was also noted when the reaction area of a CO sample was catalyzed with H₂SO₄. Through variation of the volume per reaction area, pressure or the addition of catalysts, it was possible to control the rate of the phase transition and therefore the morphology. In general, the extended solid of CO synthesized with a faster rate showed a more ordered structure and increased metastability relative to the material formed with a slower compression rate.

中文翻译：

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动力学对一氧化碳压力诱导扩展固体形态和稳定性的影响

在这项工作中，一氧化碳（CO）扩展固体的形态和稳定性的依赖性与使用光学成像，光致发光，拉曼光谱和X射线从分子CO转化为CO扩展固体的速率相关。衍射。分析表明，转化的速率和压力受化学和光学催化作用的强烈控制。在每个反应区域较大的体积中，与在每个反应区域较小体积中合成的样品相比，发现在高压或较高压力下转化需要更长的时间，从而得出结论：每个反应区域中体积较大的样品。当CO样品的反应区域被H催化时，也可以观察到更快的转化速率₂ SO ₄。通过改变每个反应区域的体积，压力或催化剂的添加，可以控制相变的速率，从而控制形态。通常，相对于以较慢的压缩速率形成的材料，以较快的速率合成的CO的扩展固体显示出更有序的结构，并增加了亚稳性。