Abstract
The graphite intercalation compound (GIC) containing the bis(hexafluorohydroxyisobutyrato)borate anion, is prepared for the first time by galvanostatic and controlled potential methods. GICs with stage are characterized by electrochemistry and powder X-ray diffraction. The anions are oriented in a monolayer arrangement with gallery heights of 13.3-13.9 Å, and the “standing-up” intercalate orientation is refined using a one-dimensional electron density map. Potential-charge curves and structural features are described and compared with those for and The relative anion oxidative stabilities of are determined experimentally and compared with highest occupied molecular orbital energy level calculations. Based on these results, a model is proposed to explain the intercalation limit of for and the nonintercalation of the bis(oxolato)borate anion, The linear relation of intercalation potential to reciprocal of gallery height and the steric effects of large anion intercalates are described. © 2004 The Electrochemical Society. All rights reserved.
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