期刊
ELECTROCHEMISTRY
卷 83, 期 5, 页码 345-347出版社
ELECTROCHEMICAL SOC JAPAN
DOI: 10.5796/electrochemistry.83.345
关键词
Sodium Ion Battery; Graphite Oxide; Intercalation; Soft X-ray Absorption
The structure of carbon obtained from the thermal reduction of graphite oxide at 900 degrees C after electrochemical storage sodium ions was investigated. X-ray diffraction measurement of the carbon sample after charged to various potentials indicated that sodium ions are stored between the layers of carbon below 0.3V vs. Na/Na+ though the interlayer spacing of it was similar to that of graphite. The lower LUMO energy as revealed from the broad pi* peak in the region of CK observed in soft X-ray absorption measurement was responsible for the intercalation of a large amount of sodium ions into the present carbon material. (C) The Electrochemical Society of Japan, All rights reserved.
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