The temperature increase in carbon materials during magic-angle spinning solid-state nuculear magnetic resonance measurements

Koichiro Hata; Keiko Ideta; Shigemi Toda; Koji Nakabayashi; Isao Mochida; Seong-Ho Yoon; Jin Miyawaki

doi:10.7209/carbon.020304

Research Papers

The temperature increase in carbon materials during magic-angle spinning solid-state nuculear magnetic resonance measurements

Koichiro Hata, Keiko Ideta, Shigemi Toda, Koji Nakabayashi, Isao Mochida, Seong-Ho Yoon, Jin Miyawaki

Author information

Keywords: Temperature increase, Conducting carbon materials, Magic-angle spinning solid-state nuclear magnetic resonance, Eddy current, Oxygen content

JOURNAL OPEN ACCESS
Supplementary material

2023 Volume 2 Issue 3 Pages 179-184

DOI https://doi.org/10.7209/carbon.020304

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Abstract

The structure of carbon materials and their precursors can be studied by magic-angle spinning solid-state nuclear magnetic resonance (MAS-SS-NMR). The state and structure of adsorbed and/or intercalated molecules and ions on/in the carbon materials can also be determined using this method. Eddy currents induced by the magnetic field during measurements cause a temperature increase in conducting carbon materials. The effects of various physical and chemical characteristics of the carbon materials on this temperature increase were investigated. The oxygen content was found to be the dominant factor determing the temperature increase, with a higher oxygen content giving a smaller temperature increase. This correlation enables a rough estimate of the temperature increase in carbon materials prior to performing MAS-SS-NMR measurements.

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