In situ X-ray diffraction of the intercalation of (C2H5)4N+ and BF4- into graphite from acetonitrile and propylene carbonate based supercapacitor electrolytes
作者： Patrick W Ruch , Matthias Hahn , Fabio Rosciano , Michael Holzapfel , Hermann Kaiser
DOI: 10.1016/J.ELECTACTA.2007.01.069
关键词: Cyclic voltammetry 、 Graphene 、 Propylene carbonate 、 X-ray crystallography 、 Graphite 、 Inorganic chemistry 、 Intercalation (chemistry) 、 Analytical chemistry 、 Acetonitrile 、 Electrolyte 、 Chemistry
摘要: Abstract The intercalation of (C 2 H 5 ) 4 N + and BF − from acetonitrile (AN) propylene carbonate (PC) solutions into bound graphite electrodes during cyclic voltammetry was investigated by in situ X-ray diffraction (XRD) using synchrotron radiation. disappearance the 0 0 2 reflection XRD patterns upon indicates that cations are accumulated between graphene layers. For , appearance 0 0 l reflexes intercalated state provides clear evidence staging. In both cases, in-plane periodicity not significantly altered process apart slight changes C bond length. PC-based electrolyte found to have least destructive effect on structure initial cycling anodic potential range along with highest charge/discharge efficiency.
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