同步辐射真空紫外光电离质谱在燃烧和催化研究中的应用进展

燃烧是当今世界的主要能源来源,在交通运输、工业生产和航空航天等领域发挥着重要的作用.燃烧过程伴随着污染物的产生,带来严重的环境问题.为了提高燃烧效率、降低污染物排放,我们需要理解并认识燃烧,最终可以控制燃烧.中间产物是燃烧反应网络的链载体,对关键中间产物定性和定量测量是认识燃烧的重要环节,也是发展和验证燃烧反应动力学模...

Recent Applications of Synchrotron Vacuum Ultraviolet Photoionization Mass Spectrometry in Combustion and Catalysis Research

Combustion is the main energy source in the world, and plays an important role in the fields of transportation, industrial production, aerospace, etc. The combustion process is accompanied by the production of pollutants, which lead to serious environmental problems. In order to improve combustion efficiency and reduce pollutant emissions, it is necessary to understand and control combustion. As intermediates are the chain nodes of combustion reaction network, qualitative and quantitative measurements of key intermediates are essential not only for understanding combustion, but also for developing and verifying combustion reaction kinetic models. On the other hand, the preparation of various chemicals and fuels involves catalytic processes. The detection of catalytic reaction intermediates can further reveal the catalytic reaction mechanism, regulate the catalytic reactions and improve the conversion of target products. The detection of these key intermediates, especially active intermediates, has always been challenging. In recent years, the synchrotron radiation vacuum ultraviolet photoionization mass spectrometry (SVUV PIMS) combined with molecular beam sampling, can detect the key intermediates in the process of combustion and catalytic reaction, such as enols, hydroperoxides, free radicals, etc. Herein, SVUV PIMS and its application in combustion and catalysis were summarized in detail, and the future development direction was prospected.