Chemical synthesis of graphite bis(perfluoropinacolato)borate and graphite bis(hexafluorohydroxyisobutyrato)borate intercalation compounds

被引:5
作者
Katinonkul, Watcharee [1 ]
Lerner, Michael M. [1 ]
机构
[1] Oregon State Univ, Dept Chem, Corvallis, OR 97331 USA
关键词
D O I
10.1016/j.carbon.2007.07.020
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Graphite chelate borate intercalation compounds, CxB[OC(CF3)(2)C(CF3)(2)O](2) center dot delta F and CxB[OC(CF3)(2)C(O)O](2) center dot delta F, are prepared for the first time by chemical oxidation of flaky graphite with fluorine gas in the presence of a solution of the intercalate anion in anhydrous hydrofluoric acid. Powder XRD data indicate that products up to stage 1 with gallery heights, d(i) = 1.43-1.45 nm are formed. The compositions of CxB[OC(CF3)(2)C(CF3)(2)O](2)center dot delta F and CxB[OC(CF3)(2)C(O)O](2)F center dot delta F are determined using B and F elemental analyses. Thermogravimetric analyses indicate the graphene sheets begin to decompose before intercalate thermolysis is complete. (C) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码:2672 / 2677
页数:6
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