EAGER: Soot Archeology - Fullerenic Nanostructure as an Indicator of C5 Precursor Chemistry

EAGER：烟灰考古学 - 富勒烯纳米结构作为 C5 前体化学的指标

基本信息

批准号：
1342920
负责人：
Randy Vander Wal
金额：
$ 4.44万
依托单位：
Pennsylvania State Univ University Park
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2013
资助国家：
美国
起止时间：
2013-07-01 至 2015-01-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1342920&HistoricalAwards=false
关键词：
EAGER Soot Archeology Fullerenic Nanostructure

项目摘要

This proposal seeks to establish a correlation between fuel-air ratio and curvature in soot nanostructure. Partial pre-mixing contributes new pathways to soot formation via partial oxidation of polycyclic aromatic hydrocarbons (PAHs). Accordingly the first objective is to demonstrate the relevance of C5-membered rings to fullerenic nanostructure in soot using a simple gas jet diffusion flame fueled with C5 precursor species. The second objective is demonstrating C5 production, via partial premixing using a Bunsen flame configuration. The third objective is to test fullerenic formation across temperatures for comparison to model calculations using a flat flame burner fueled with real and surrogate fuels. Modeling will be used to guide experimental efforts and support the correlations sought between nanostructure and gas phase chemistry. Calculated and measured temperature fields will serve as input to temperature-time profiles. Results of this study will create a new paradigm ¡V using fullerenic nanostructure as a tracer for partial premixing. By showing a definitive link between nanostructure and specific precursor species this study will provide a foundation for inferring ?¶ within soot forming regions of practical combustors and engines based upon the degree of curvature observed in the soot. Beyond combustion interests, demonstrating a relation between molecular growth species and solid-state structure would spur modeling studies across carbon nanomaterials as synthesized via CVD or pyrolysis processes, including fullerenes, nanotubes and graphene.

该提案旨在建立烟灰纳米结构中的燃料-空气比和曲率之间的相关性，从而为通过多环芳烃（PAH）的部分氧化形成烟灰提供新的途径。因此，第一个目标是证明 C5 的相关性。使用以 C5 前体物质为燃料的简单气体喷射扩散火焰在烟灰中形成富勒烯纳米结构第二个目标是通过使用本生灯进行部分预混合来演示 C5 的生产。第三个目标是测试不同温度下富勒烯的形成，以便与使用真实燃料和替代燃料的平焰燃烧器的模型计算进行比较。建模将用于指导实验工作并支持纳米结构和气相化学之间所寻求的相关性。计算和测量的温度场将作为温度-时间曲线的输入，本研究的结果将创建一个新的范例。 V 使用富勒烯纳米结构作为部分预混合的示踪剂通过显示纳米结构和特定前体物质之间的明确联系，这项研究将为基于在实际燃烧器和发动机中观察到的曲率程度推断实际燃烧器和发动机的烟灰形成区域内的 ?¶ 提供基础。除了燃烧兴趣之外，证明分子生长种类和固态结构之间的关系将促进通过 CVD 或热解过程合成的碳纳米材料（包括富勒烯）的建模研究。纳米管和石墨烯。