کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
191236 | 459716 | 2010 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Electrochemical intercalation of potassium into graphite in KF melt Electrochemical intercalation of potassium into graphite in KF melt](/preview/png/191236.png)
Electrochemical intercalation of potassium into graphite in molten potassium fluoride at 1163 K was investigated by means of cyclic voltammetry, galvanostatic electrolysis and open-circuit potential measurements. It was found that potassium intercalated into graphite solely between graphite layers. In addition, the intercalation compound formed in graphite bulk in molten KF was quite unstable and decomposed very fast. X-ray diffraction measurements indicate that a very dilute potassium–graphite intercalation compound was formed in graphite matrix in the fluoride melt. Analysis with scanning electron microscope and transmission electron microscope shows that graphite was exfoliated to sheets and tubes due to lattice expansion caused by intercalation of potassium in molten KF.
Journal: Electrochimica Acta - Volume 55, Issue 3, 1 January 2010, Pages 1013–1018