Metal-based nanoparticle synthesis from the rapid expansion of carbon dioxide solutions

John L. Fulton, Dean W. Matson, Klaus H. Pecher, James E. Amonette, John Linehan

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Synthesis of 10 to 500 nm diameter Fe-based nanoparticles is described. Nanometer-sized droplets of iron carbonyl are generated by the rapid expansion of CO 2-based supercritical fluid solutions and are photolyzed in-flight using a UV lamp to remove the carbonyl groups. Solid metal particles are collected electrostatically as coatings or loose particle aggregates on solid surfaces. Upon air oxidation, the iron particles react rapidly to produce an iron oxide phase. Mo-based nanoparticles were similarly produced using a Mo(Co) 6 precursor. FTIR analysis of collected nanoparticles suggests that carbonyl groups are more readily photolyzed from the Fe precursor than from the Mo analog.

Original languageEnglish
Pages (from-to)562-567
Number of pages6
JournalJournal of Nanoscience and Nanotechnology
Volume6
Issue number2
DOIs
Publication statusPublished - Feb 2006

Fingerprint

Metal Nanoparticles
Carbon Dioxide
Nanoparticles
Carbon dioxide
Metals
Iron
Ultraviolet lamps
Supercritical fluids
Fourier Transform Infrared Spectroscopy
Carbon Monoxide
Iron oxides
Air
Coatings
Oxidation

Keywords

  • Coatings
  • Deposition
  • Nanomaterials
  • Nucleation
  • Supercritical Fluids

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Materials Science (miscellaneous)
  • Engineering (miscellaneous)

Cite this

Metal-based nanoparticle synthesis from the rapid expansion of carbon dioxide solutions. / Fulton, John L.; Matson, Dean W.; Pecher, Klaus H.; Amonette, James E.; Linehan, John.

In: Journal of Nanoscience and Nanotechnology, Vol. 6, No. 2, 02.2006, p. 562-567.

Research output: Contribution to journalArticle

Fulton, John L. ; Matson, Dean W. ; Pecher, Klaus H. ; Amonette, James E. ; Linehan, John. / Metal-based nanoparticle synthesis from the rapid expansion of carbon dioxide solutions. In: Journal of Nanoscience and Nanotechnology. 2006 ; Vol. 6, No. 2. pp. 562-567.
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