The Formation of Combustion Generated Particles: Using In situ Electron Microscopy to Advance our Understanding and Modeling

燃烧产生的颗粒的形成:利用原位电子显微镜促进我们的理解和建模

基本信息

  • 批准号:
    RGPIN-2020-06136
  • 负责人:
  • 金额:
    $ 5.54万
  • 依托单位:
  • 依托单位国家:
    加拿大
  • 项目类别:
    Discovery Grants Program - Individual
  • 财政年份:
    2020
  • 资助国家:
    加拿大
  • 起止时间:
    2020-01-01 至 2021-12-31
  • 项目状态:
    已结题

项目摘要

The formation of combustion-derived nanoparticles is important both as a pollutant such as soot and as a material such as carbon black. Recently I have been able to translate my soot expertise to the material synthesis of carbon black. Carbon black (CB), which is essentially a pure form of soot, has a wide range of applications such as in composites, rubbers, plastics, batteries and paints. The aggregate and internal structure of these nanoparticles is important as they determine the health effects and material properties of soot and carbon black, respectively. The long-term goals of this research program are to develop a fundamental understanding of the combustion-generated growth of carbon particles, to use this understanding to develop detailed predictive models and to apply these models to solve practical problems such as predicting particle size and aggregate structure of carbon black and soot. This proposal will be based on our deep experience in soot formation and our recent success in pioneering the use of an Environmental Transmission Electron Microscope (ETEM) to visualize, in real time, nanoscale carbon particles, with a sub-nanometer resolution, as they oxidize due to an introduced gas and/or as their internal structure transforms due to heating; this work recently won two awards. This proposal will pioneer the use of the ETEM to explore the effect of particle growth on bridging and enveloping the primary particles. Current models ignore this effect, overestimating the surface area by assuming point contact of growing particles. The particles placed into the ETEM will be obtained from our flame or from carbon black producers. The ETEM can image individual aggregates of nanoparticles as they react to introduced hydrocarbon gases in the electron microscope. It is believed that no one has used an ETEM to study the growth of soot or carbon black particles. Also, a TOF-SIMS (Time of flight secondary ion mass spectrometry) will provide a new method to identify the molecular structure of the species reacting or adsorbed on the soot surface. The short term objectives are we will: (1) use ETEM to look at how particle growth processes both affect and are affected by the particle aggregate and molecular structure; (2) measure the molecular structure of the surface of particles sampled from our coflow flame or our ETEM reactor using a TOF-SIMS; (3) improve our particle formation models by incorporating the findings of the first and second objectives. The models will better predict the particle's growth and surface properties; they will then be further validated with experimental data from flames. The multidisciplinary nature of combustion-derived nanoparticles formation makes it excellent training for students in the thermo-sciences research area. All my recent graduated PhD students have gone on to challenging positions related to their thesis research and three of my PhD students have recently begun tenure track professor positions.
燃烧衍生的纳米颗粒的形成对于作为污染物(如烟灰)和作为材料(如炭黑)都很重要。最近,我已经能够将我的烟尘专业知识转化为炭黑的材料合成。炭黑(CB)本质上是一种纯烟尘,在复合材料、橡胶、塑料、电池和油漆等领域有着广泛的应用。这些纳米粒子的聚集和内部结构非常重要,因为它们分别决定了烟灰和炭黑的健康影响和材料特性。

项目成果

期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)

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Thomson, Murray其他文献

A high-resolution domestic building occupancy model for energy demand simulations
  • DOI:
    10.1016/j.enbuild.2008.02.006
  • 发表时间:
    2008-01-01
  • 期刊:
  • 影响因子:
    6.7
  • 作者:
    Richardson, Ian;Thomson, Murray;Infield, David
  • 通讯作者:
    Infield, David
Dental plaque and oral health during the first 32 years of life
  • DOI:
    10.14219/jada.archive.2011.0197
  • 发表时间:
    2011-04-01
  • 期刊:
  • 影响因子:
    3.9
  • 作者:
    Broadbent, Jonathan M.;Thomson, Murray;Poulton, Richie
  • 通讯作者:
    Poulton, Richie
Tyrosine phosphorylated proteins in the reproductive tract of the viviparous lizard Eulamprus tympanum and the oviparous lizard Lampropholis guichenoti
Solar Power and Energy Storage for Decarbonization of Land Transport in India
  • DOI:
    10.3390/en14248277
  • 发表时间:
    2021-12-01
  • 期刊:
  • 影响因子:
    3.2
  • 作者:
    Barton, John P.;Thomson, Murray
  • 通讯作者:
    Thomson, Murray
Four-state domestic building occupancy model for energy demand simulations
  • DOI:
    10.1016/j.enbuild.2015.03.013
  • 发表时间:
    2015-06-01
  • 期刊:
  • 影响因子:
    6.7
  • 作者:
    McKenna, Eoghan;Krawczynski, Michal;Thomson, Murray
  • 通讯作者:
    Thomson, Murray

Thomson, Murray的其他文献

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{{ truncateString('Thomson, Murray', 18)}}的其他基金

The Formation of Combustion Generated Particles: Using In situ Electron Microscopy to Advance our Understanding and Modeling
燃烧产生的颗粒的形成:利用原位电子显微镜促进我们的理解和建模
  • 批准号:
    RGPIN-2020-06136
  • 财政年份:
    2022
  • 资助金额:
    $ 5.54万
  • 项目类别:
    Discovery Grants Program - Individual
The Formation of Combustion Generated Particles: Using In situ Electron Microscopy to Advance our Understanding and Modeling
燃烧产生的颗粒的形成:利用原位电子显微镜促进我们的理解和建模
  • 批准号:
    RGPIN-2020-06136
  • 财政年份:
    2021
  • 资助金额:
    $ 5.54万
  • 项目类别:
    Discovery Grants Program - Individual
Enhancing the Scientific Understanding of Nanoparticle Formation in Flames
增强对火焰中纳米颗粒形成的科学理解
  • 批准号:
    RGPIN-2015-04699
  • 财政年份:
    2019
  • 资助金额:
    $ 5.54万
  • 项目类别:
    Discovery Grants Program - Individual
Understanding the effect of biofuels on particulate emissions
了解生物燃料对颗粒物排放的影响
  • 批准号:
    491952-2015
  • 财政年份:
    2018
  • 资助金额:
    $ 5.54万
  • 项目类别:
    Collaborative Research and Development Grants
Process modeling and optimization of the Birla Carbon Process
Birla Carbon 工艺的工艺建模和优化
  • 批准号:
    521885-2018
  • 财政年份:
    2018
  • 资助金额:
    $ 5.54万
  • 项目类别:
    Engage Grants Program
Enhancing the Scientific Understanding of Nanoparticle Formation in Flames
增强对火焰中纳米颗粒形成的科学理解
  • 批准号:
    RGPIN-2015-04699
  • 财政年份:
    2018
  • 资助金额:
    $ 5.54万
  • 项目类别:
    Discovery Grants Program - Individual
NSERC CREATE Program in Clean Combustion Engines
NSERC CREATE 清洁燃烧发动机计划
  • 批准号:
    432004-2013
  • 财政年份:
    2018
  • 资助金额:
    $ 5.54万
  • 项目类别:
    Collaborative Research and Training Experience
NSERC CREATE Program in Clean Combustion Engines
NSERC CREATE 清洁燃烧发动机计划
  • 批准号:
    432004-2013
  • 财政年份:
    2017
  • 资助金额:
    $ 5.54万
  • 项目类别:
    Collaborative Research and Training Experience
Enhancing the Scientific Understanding of Nanoparticle Formation in Flames
增强对火焰中纳米颗粒形成的科学理解
  • 批准号:
    RGPIN-2015-04699
  • 财政年份:
    2017
  • 资助金额:
    $ 5.54万
  • 项目类别:
    Discovery Grants Program - Individual
Instrument for in-situ nanomaterial reaction imaging
纳米材料原位反应成像仪器
  • 批准号:
    RTI-2018-00753
  • 财政年份:
    2017
  • 资助金额:
    $ 5.54万
  • 项目类别:
    Research Tools and Instruments

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了解燃烧产生的烟灰纳米颗粒形成和重组的基本原理
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The Formation of Combustion Generated Particles: Using In situ Electron Microscopy to Advance our Understanding and Modeling
燃烧产生的颗粒的形成:利用原位电子显微镜促进我们的理解和建模
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    RGPIN-2020-06136
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