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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

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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résumé
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.

Tags

Carbon Surface Electron Paramagnetic Resonance Calibrated Gas Flow Oxidation Effects Structure And Stability Carbon Radicals Heisenberg Spin Exchange Interaction EPR Signal Broadening Reversible Effect Diamagnetic Gas Macropore System Experimental Techniques Work-up Analysis Stable Radical Nature
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