GC-MS for Catalysis, Combustion and Nanotechnology Research and Student Training

气相色谱仪和质谱仪(GC-MS)将用于大部分研究以及新的化学工程实验室课程中的一个模块，以支持课程的改进。在研究方面，该系统大大加强了对高温碳氢化合物反应系统化学机理的现有研究，并为这些系统开发了新的诊断和反应工艺。目前将使用这种设备的项目包括甲烷和大型碳氢化合物的催化燃烧、火焰中更高的碳氢化合物和烟尘产量、芳香烃的氧化机理、燃料加工反应、纳米多孔材料的结构-反应性关系以及最近的碳纳米管在火焰中的生长和使用催化模板反应器。在所有这些系统中，每个质量中都有多个物种的复杂产品组合需要多维分析技术--所要求的GC-MS系统非常适合这项任务。增强的能力将包括瞬时耦合研究的高扫描速度、更快的吞吐量、更大的质量范围和导出数据进行分析的能力，以及包括电子碰撞和化学电离的双MS探测器。随着大多数学生进入研究生和专业学校，这项使命的很大一部分是让本科生接触研究。作为该部发展工作的一部分，计划开设一个新的研究实验室课程，其中将包括各个个人投资促进机构的实验室模块。使用拟议的GC-MS的实验将适用于本课程，提供分离技术、化学动力学分析、定量方法和数据分析方面的培训。由于所要求的系统操作简单，分析相当直接，GC-MS将有助于将本科生纳入我们的研究项目。

A gas chromatograph coupled to a mass spectrometer (GC-MS) will be used in most of the research as well as for a module in a new chemical engineering laboratory course supporting improvement of the curriculum. In research, the system provides a substantial enhancement to the existing studies into chemical mechanisms in high-temperature hydrocarbon reaction systems and the development of novel diagnostics and reaction processes for these systems. Current projects that will use this equipment include catalytic combustion of methane and large hydrocarbons, higher hydrocarbon and soot production in flames, mechanisms for oxidation of aromatic hydrocarbons, fuel processing reactions, structure-reactivity relationships for nanoporous materials and more recently growth of carbon nanotubes in flames and using catalytic template reactors. In all of these systems the complex product mix with multiple species at each mass requires a multidimensional analysis technique-a task for which the requested GC-MS system is well suited. Enhanced capabilities will include high scan rate for transient coupling studies, faster throughput, larger mass range and the ability to export data for analysis, plus dual MS detectors including both electron impact and chemical ionization. With the majority of students going on to graduate and professional schools, a large portion of the mission is exposing undergraduates to research. As part of the departmental development a new research laboratory course that will include modules in the laboratories of individual PIs is planned. The experiments using the proposed GC-MS would be appropriate for this course providing training in separation techniques, chemical kinetic analysis, quantitative methods and data analysis. The GC-MS would facilitate the incorporation of undergraduates into our research projects due to the ease of operation of the requested system and reasonably straightforward analysis.