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The influence of annealing in a vacuum on the concentration of radicals in fullerite C60

  • Physical Chemistry of Nanoclusters and Nanomaterials
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Abstract

For fullerite C60 with intercalated oxygen, a sharp (by three orders of magnitude) increase in the intensity of the EPR signal with a g-factor of 2.0024 was observed at ∼200°C. Studies of gases formed in heating of the sample in a vacuum showed that molecular oxygen was largely released at temperatures below 100°C, whereas the gas phase formed as the temperature increased to 200°C contained carbon oxides CO and CO2 in addition to oxygen. The conclusion was drawn that the intensity of the EPR signal was determined by the products of oxygen interaction with fullerene rather than the concentration of oxygen in the sample.

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Authors and Affiliations

  1. Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Moscow oblast, 142432, Russia

    Yu. M. Shul’ga, A. V. Kulikov, V. M. Martynenko, V. V. Open’ko, V. G. Karatevskii & Yu. G. Morozov

Authors
  1. Yu. M. Shul’ga
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  2. A. V. Kulikov
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  3. V. M. Martynenko
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  4. V. V. Open’ko
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  5. V. G. Karatevskii
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  6. Yu. G. Morozov
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Corresponding author

Correspondence to Yu. M. Shul’ga.

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Original Russian Text © Yu.M. Shul’ga, A.V. Kulikov, V.M. Martynenko, V.V. Open’ko, V.G. Karatevskii, Yu.G. Morozov, 2008, published in Zhurnal Fizicheskoi Khimii, 2008, Vol. 82, No. 8, pp. 1479–1482.

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Shul’ga, Y.M., Kulikov, A.V., Martynenko, V.M. et al. The influence of annealing in a vacuum on the concentration of radicals in fullerite C60 . Russ. J. Phys. Chem. 82, 1314–1317 (2008). https://doi.org/10.1134/S003602440808013X

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  • DOI: https://doi.org/10.1134/S003602440808013X

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