Isotopic Tracers for Combustion Research

ABSTRACT This review article deals with the use of isotopic tracers in the field of combustion science. A number of researchers have reported the use of isotopic techniques, which have been employed to solve a wide range of combustion problems. Radioactive and stable isotopes have been utilized as tracers, including isotopes of carbon (13C and 14C), oxygen (18O), and deuterium (D). One of the main applications has been to quantitatively determine the propensity of a molecule in a mixture, or specific atom within a molecule, to form pollutant emissions. Tracer studies have also been used for the elucidation of combustion reaction pathways, and kinetic rate constant determination of elementary reactions. A number of analytical techniques have been used for isotope detection; and the merits of some of the different techniques are discussed in the context of combustion research. This article concludes by exploring emerging methods and potential future techniques and applications.

**摘要** 这篇综述文章论述了同位素示踪剂在燃烧科学领域的应用。许多研究人员已经报道了同位素技术的应用，这些技术已被用于解决各种各样的燃烧问题。放射性同位素和稳定同位素已被用作示踪剂，包括碳的同位素（\(^{13}C\)和\(^{14}C\)）、氧的同位素（\(^{18}O\)）和氘（\(D\)）。主要应用之一是定量确定混合物中一个分子，或一个分子内特定原子形成污染物排放的倾向。示踪研究也被用于阐明燃烧反应途径，以及确定基元反应的动力学速率常数。许多分析技术已被用于同位素检测；并且在燃烧研究的背景下讨论了一些不同技术的优点。本文最后探讨了新兴方法以及潜在的未来技术和应用。