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TEM analysis of volatile nanoparticles from particle trap equipped diesel and direct-injection spark-ignition vehicles

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Title: TEM analysis of volatile nanoparticles from particle trap equipped diesel and direct-injection spark-ignition vehicles
Authors: Mathis, U.1, Kaegi, R.1, Mohr, M.1 martin.mohr@empa.ch, Zenobi, R.2
Source: Atmospheric Environment. Aug2004, Vol. 38 Issue 26, p4347-4355. 9p.
Subjects: Nucleation, Waste gases, Transmission electron microscopes, Nanoparticles
Abstract: We investigated volatile nanoparticles emitted from two light-duty vehicles using a transmission electron microscope (TEM). Elemental analysis was performed with an energy dispersive system (EDS) attached to the microscope. Differences in stability of volatile nanoparticles during TEM analysis indicated two different chemical compounds. The results are consistent with the thesis that volatile nanoparticles are composed of a more volatile hydrophilic and a less volatile hydrophobic part. Sulfur and potassium were detected in volatile nanoparticles. These elements are likely to play an important role in the formation of volatile nanoparticles. Particle number size distributions derived from a scanning mobility particle sizer (SMPS) and from TEM image analysis were in good agreement. [Copyright &y& Elsevier]
Copyright of Atmospheric Environment is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 13795848
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: TEM analysis of volatile nanoparticles from particle trap equipped diesel and direct-injection spark-ignition vehicles
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  Data: <searchLink fieldCode="AR" term="%22Mathis%2C+U%2E%22">Mathis, U.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Kaegi%2C+R%2E%22">Kaegi, R.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Mohr%2C+M%2E%22">Mohr, M.</searchLink><relatesTo>1</relatesTo><i> martin.mohr@empa.ch</i><br /><searchLink fieldCode="AR" term="%22Zenobi%2C+R%2E%22">Zenobi, R.</searchLink><relatesTo>2</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Atmospheric+Environment%22">Atmospheric Environment</searchLink>. Aug2004, Vol. 38 Issue 26, p4347-4355. 9p.
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  Data: <searchLink fieldCode="DE" term="%22Nucleation%22">Nucleation</searchLink><br /><searchLink fieldCode="DE" term="%22Waste+gases%22">Waste gases</searchLink><br /><searchLink fieldCode="DE" term="%22Transmission+electron+microscopes%22">Transmission electron microscopes</searchLink><br /><searchLink fieldCode="DE" term="%22Nanoparticles%22">Nanoparticles</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: We investigated volatile nanoparticles emitted from two light-duty vehicles using a transmission electron microscope (TEM). Elemental analysis was performed with an energy dispersive system (EDS) attached to the microscope. Differences in stability of volatile nanoparticles during TEM analysis indicated two different chemical compounds. The results are consistent with the thesis that volatile nanoparticles are composed of a more volatile hydrophilic and a less volatile hydrophobic part. Sulfur and potassium were detected in volatile nanoparticles. These elements are likely to play an important role in the formation of volatile nanoparticles. Particle number size distributions derived from a scanning mobility particle sizer (SMPS) and from TEM image analysis were in good agreement. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
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  Group: Ab
  Data: <i>Copyright of Atmospheric Environment is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.atmosenv.2004.04.016
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      – Code: eng
        Text: English
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        StartPage: 4347
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        Type: general
      – SubjectFull: Waste gases
        Type: general
      – SubjectFull: Transmission electron microscopes
        Type: general
      – SubjectFull: Nanoparticles
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      – TitleFull: TEM analysis of volatile nanoparticles from particle trap equipped diesel and direct-injection spark-ignition vehicles
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              Text: Aug2004
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              Y: 2004
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