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JoVE Journal Chemistry
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

Article DOI: 10.3791/51548-v • 10:34 min • April 24th, 2014
April 24th, 2014 •
1,2, 3, 1, 2,4, 3
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

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Summary
Automatic Translation

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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Carbon Radicals Electron Paramagnetic Resonance EPR Oxidation Carbon Structure Heisenberg Spin Exchange Molecular Oxygen Diamagnetic Gas Macropore System
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