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Exploring the Radical Nature of a Carbon Surface by Electron Paramagnetic Resonance and a Calibrated Gas Flow
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Exploring the Radical Nature of a Carbon Surface by Electron Paramagnetic Resonance and a Calibrated Gas Flow

Exploring the Radical Nature of a Carbon Surface by Electron Paramagnetic Resonance and a Calibrated Gas Flow

10,546 Views

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10:34 min

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April 24, 2014

DOI:

10.3791/51548-v

DOI:
10.3791/51548-v

•

10:34 min
April 24, 2014

•

4 Views
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1Chemistry Institute,The Hebrew University of Jerusalem, 2Biological Chemistry Department,Ariel University, 3Chemistry Department, Faculty of Exact Science,Bar Ilan University, 4Chemistry Department,Ben-Gurion University

Summary

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Stable radicals that are present in carbon substrates interact with paramagnetic oxygen through a Heisenberg spin exchange. This interaction can be significantly reduced under STP conditions by flowing a diamagnetic gas over the carbon system. This manuscript describes a simple method to characterize the nature of those radicals.

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Green, U., Shenberger, Y., Aizenshtat, Z., Cohen, H., Ruthstein, S. Exploring the Radical Nature of a Carbon Surface by Electron Paramagnetic Resonance and a Calibrated Gas Flow. J. Vis. Exp. (86), e51548, doi:10.3791/51548 (2014).

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