Modern real-time characterization of airbone nanoparticles

Autor(en)

Wladyslaw Szymanski, Günter M Allmaier

Abstrakt

Nanoparticles are ubiquitous in natural and technological environments. In the airborne state, they are called nanoaerosols. They are of substantial interest due to a variety of potential technological applications; particularly, they are important as precursors for the formation of larger particles and structures. Their properties are different from their bulk counterparts due to their much larger surface-to-volume ratio. Even with the same chemical composition, nanoparticles can show considerably different physicochemical characteristics. Experimental characterisation techniques are among the first measures towards understanding the behaviour of nanoparticles and of nanoaerosol systems. The application of an appropriate technique to measure the relevant parameters to obtain information and insight into processes determining the behaviour and fate of nanoaerosols is essential. Various moments of size distributions can be nowadays measured. In this contribution, selected real-time electrical methods for measuring aerosol nanoparticles are presented, and, based on experimental findings, their shortcomings and benefits are discussed.

Organisation(en)

Aerosolphysik und Umweltphysik

Externe Organisation(en)

Technische Universität Wien

Seiten

221-228

Anzahl der Seiten

8

DOI

https://doi.org/10.1002/9780470917145.ch32

Publikationsdatum

2010

ÖFOS 2012

1030 Physik, Astronomie, 210006 Nanotechnologie, 105904 Umweltforschung

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/a7f73d71-bce1-4d8b-b31b-1f5d241ea5e5