Radiotracer Diagnostics of Graphite Intercalation Compounds with Sulfuric and Acetic Acidsстатья
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Дата последнего поиска статьи во внешних источниках: 14 сентября 2013 г.
Аннотация:The electrochemical intercalation of graphite in H2SO4–CH3COOH solutions is investigated by theradiotracer method in combination with autoradiography. The results attest to the formation of a stage I ternary intercalation compound in the solutions containing 60 and 80 wt % H2SO4
and stage II graphite bisulfate in the solutions containing 20 and 40 wt % H2SO4. The hydrolysis of the ternary compound leads to partial removal of acetic acid from the graphite host. Heat treatment of hydrolyzed samples results in complete deintercalation of the acids. The presence of both acetic and sulfuric acids in the synthesized compounds is confirmed by thermogravimetry combined with mass spectrometry and Fourier-transform IR spectroscopy.