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水是一种环境友好的反应介质,超(近)临界水中的反应已成为目前研究的一个热点。原位反应技术是深入研究超(近)临界水中反应过程的重要手段之一,其中金刚石压腔和毛细管技术是目前最常用的主要方法,与拉曼光谱、红外光谱、质谱等分析方法联用,可以对超(近)临界水中反应机理进行研究。本文综述了超(近)临界水中的原位反应观测技术,介绍了金刚石压腔的结构和工作原理、金刚石压腔和毛细管的应用范围,阐述了金刚石压腔和毛细管技术在原位观测和反应机理研究方面的应用。最后,展望了超(近)临界水原位反应技术的应用前景。
Water is an environmentally friendly reaction medium, and the reaction in super (near) critical water has become a hot spot in current research. In-situ reaction is one of the most important methods to study the reaction process in ultra (near) critical water. Diamond pressure chamber and capillary technology are the most commonly used methods at present. They are combined with Raman spectroscopy, infrared spectroscopy and mass spectrometry , We can study the reaction mechanism in super (near) critical water. In this paper, the in situ reaction observations in supercritical (near) critical waters are reviewed. The structure and working principle of diamond pockets, the application of diamond pockets and capillaries are introduced. The applications of diamond pockets and capillary in situ observations and reactions Application of mechanism research. Finally, the application prospects of ultra (near) critical water in situ reaction technology are prospected.