Bibliographic Details
| 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 |
