Preparation, characterization, and exfoliation of graphite perfluorooctanesulfonate

被引：32

作者：

Zhang, ZW ^{[1
]}

Lerner, MM ^{[1
]}

机构：

[1] OREGON STATE UNIV,CTR ADV MAT RES,CORVALLIS,OR 97331

来源：

CHEMISTRY OF MATERIALS | 1996年 / 8卷 / 01期

关键词：

D O I：

10.1021/cm950355v

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：

Air-stable graphite compounds with perfluorooctanesulfonate, CxC8F17SO3, are prepared by electrochemical oxidation of HOPG chips or SP-1 graphite powder in LiC8F17SO3 (saturated)/CH3NO2 electrolyte. XRD patterns of several single-stage products indicate that highly ordered intercalation compounds form with d(i) = 24.6-24.9 Angstrom for stages (n) = 3-7 or 26.6 Angstrom for n = 2, supporting the model of a bilayer of perfluoroalkylsulfonate anions within the intercalated galleries. Gravimetric and thermogravimetric data provide x for n = 2-6. Consistent with the bilayer model, the C/anion ratio is found to be much lower than in small-anion intercalation compounds. Ambient temperature exfoliation occurs when a high-stage graphite sulfate is anodized in the C8F17SO3--containing electrolyte.

引用

页码：257 / 263

页数：7

共 27 条

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