Research Initiation Award: Fundamental Studies of the Reaction Kinetics of Oxygen with Carbon

本研究从三个方面研究了氧与微孔碳的反应：表面络合物的形成动力学；氢在固体中的作用；以及结构特征对动力学的影响。利用热重技术和气体分析技术获得了稳态和暂态动力学数据。利用物理吸附数据对焦炭的比表面积、微孔体积和微孔大小进行了表征。对数据的解释需要一个场地分布模型；因此，这项研究包括对这种模型的关键分析。尽管气固反应是许多化学和能源过程的核心，但人们对它们知之甚少。本项目系统地解决了这一问题。被选择用于研究的特定系统在燃烧科学中具有重要的意义。改进的效率和控制是这项工作的可能副产品。

Three aspects of the reaction of oxygen with microporous carbons are investigated in this study: the kinetics of the formation of the surface complex; the role of hydrogen in the solid; and the influence of structural characteristics on the kinetics. Steady-state and transient kinetic data are obtained using thermograivmetric techniques and gas analysis. Chars are characterized by surface area, micropore volume, and micropore size analysis from physisorption data. Interpretation of the data requires a site-distribution model; therefore the study includes a critical analysis of such models. Although gas-solid reactions are central to many chemical and energy prosesses, they are poorly understood. This project addresses the issue systematically. The particular system chosen for study is of vital interest in combustion science. Improved efficiency and control are possible spinoffs from this work.