1978•Journal of Physics D Applied PhysicsOpen access

The application of Mossbauer spectroscopy in investigating iron compounds in car exhaust

J.P. Eymery, S.B. Raju, Pierre Moine

Abstract

Mossbauer spectroscopy has been applied to analyse the iron compounds present in car exhausts. From the shapes of the Mossbauer spectra at room temperature it is inferred that iron appears basically as alpha -Fe 2 O 3 in the form of ultra-fine particles, of approximately 120 AA diameter, in the superparamagnetic phase and also in ferromagnetic phase.

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Key concepts: Mössbauer spectroscopy, Superparamagnetism, Ferromagnetism, Materials science, Phase (matter), Spectroscopy, Mössbauer effect, Ultrafine particle