Nanoparticles in Astrochemistry: Synthesis and Characterization of Meteorite Dust Nanoparticles

Details Nanoparticles in Astrochemistry: Synthesis and Characterization of Meteorite Dust Nanoparticles Nanoparticles in Astrochemistry: Synthesis and Characterization of Meteorite Dust Nanoparticles

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aipc..855...76a&link_type=abstract

ASTROCHEMISTRY: From Laboratory Studies to Astronomical Observations. AIP Conference Proceedings, Volume 855, pp. 76-85 (2006).

Biology

2

Astrobiology And Astrochemistry Of The Solar System And Interplanetary Space, Interstellar Material, Meteors, Meteorites And Tektites

Scientific paper

Interstellar dust particles (IDPs) constitute most of the solid matter in the universe. Large quantities of IDPs are also present in the Solar System and fall on Earth. IDPs are also of interest as they can catalyze astrochemical reactions and prebiotic synthesis, and their organic contents are believed to have contributed to the origins of life. Their chemical composition is similar to carbonaceous chondrite comets, asteroids and meteorites. The IDPs are microporous web-like aggregates of 10-100 nm phyllosilicate particles with morphologies similar to particles produced by the Laser Vaporization Controlled Condensation (LVCC) method. IDPs are available only as microscopic samples, and simulated IDPs are needed to study their chemical and catalytic effects. To produce such simulated IDPs, we formed nanoparticles from carbonaceous chondrite meteorites by LVCC processing. The compositions, morphologies, particle size distribution, FTIR spectra, and catalytic properties of the meteorite-based nanoparticles were investigated and compared with the original meteorite materials and reference minerals.

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