Size-controlled nanoparticles by thermal cracking of iron pentacarbonyl
Author
Summary, in English
A gas-phase method has been developed for producing size-controlled nanoparticles by thermal cracking of iron pentacarbonyl. The method includes the formation of iron particles from vapor emanating from the cracking of the volatile compound and subsequent compacting of the selected particles. Different temperature steps were involved in the process, and their effects on the particle production were investigated. On-line differential mobility measurements and off-line transmission electron microscopy (TEM) were used to study the morphology, composition and structure of the generated particles. The aim of the study was to produce nanoparticles of pure iron. After transportation in air, the composition of the particles was analyzed by TEM and found to be magnetite, Fe3O4. The oxidation may be attributed to the exposure to air and humidity during the transport. The phase of the uncontaminated particles could not be determined. Tests for growth of silicon nanowhiskers using nanoparticles produced with this method were successful.
Publishing year
2005
Language
English
Pages
1579-1583
Publication/Series
Applied Physics A: Materials Science & Processing
Volume
80
Issue
7
Document type
Journal article
Publisher
Springer
Topic
- Condensed Matter Physics
- Chemical Sciences
Status
Published
ISBN/ISSN/Other
- ISSN: 1432-0630