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Related Experiment Video

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Production and Measurement of Organic Particulate Matter in a Flow Tube Reactor

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Published on: December 15, 2018

Low density solid ozone.

B D Teolis¹, M Famá, R A Baragiola

¹Laboratory for Atomic and Surface Physics, University of Virginia, Charlottesville, Virginia 22904, USA.

The Journal of Chemical Physics

|August 28, 2007

Summary

Researchers created a new solid ozone structure with very low density. Heating this porous ozone causes it to compact and crystallize, offering insights into solid oxygen research.

Area of Science:

Materials Science
Solid-state Chemistry
Low-temperature Physics

Background:

Solid ozone is an allotrope of oxygen with potential applications in energetic materials and as an oxidizer.
Previous studies on solid oxygen irradiation produced various ozone allotropes with differing densities and properties.
Understanding the formation and properties of solid ozone is crucial for its potential applications.

Purpose of the Study:

To report the creation and characterization of a novel, very low-density solid ozone structure.
To investigate the structural transformation of porous ozone upon heating.
To interpret previous solid oxygen irradiation research using infrared spectroscopy of porous ozone.

Main Methods:

Irradiation of solid oxygen with 100 keV protons at 20 K.

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Heating the sample to sublime unconverted oxygen.

Heating the porous ozone to 47 K to induce compaction and crystallization.

Detailed analysis of the main infrared absorption band of porous ozone.

Main Results:

A very low-density (approximately 0.5 g/cm^3) solid ozone structure was successfully produced.
Upon heating to 47 K, the porous ozone compacted to a density of approximately 1.6 g/cm^3 and crystallized.
Infrared absorption band analysis provided a new interpretation for previous solid oxygen irradiation experiments.

Conclusions:

The study successfully synthesized and characterized a novel low-density solid ozone.
The observed compaction and crystallization behavior of porous ozone at 47 K is a significant finding.
The infrared analysis offers a valuable tool for understanding solid ozone formation mechanisms and reinterpreting prior research.