ELECTROCHEMICAL REDOX CAPACITY OF THERMALLY EXFOLIATED GRAPHITE IN SULFURIC-ACID

Authors
FRACKOWIAK E KAISER W KROHN H BECK F
Citation
E. Frackowiak et al., ELECTROCHEMICAL REDOX CAPACITY OF THERMALLY EXFOLIATED GRAPHITE IN SULFURIC-ACID, Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals, 244, 1994, pp. 221-226
Citations number
14
Categorie Soggetti
Crystallography
Journal title
Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals → ACNP
ISSN journal
1058725X
Volume
244
Year of publication
1994
Pages
221 - 226
Database
ISI
SICI code
1058-725X(1994)244:<221:ERCOTE>2.0.ZU;2-2
Abstract
Thermally expanded graphite (TEG) was prepared from graphite hydrogens ulfate, 1st and 2nd stage, at 550 degrees C. Surprisingly, the interca lation redox capacity and the cyclic voltammetric (CV) profiles in 18 M H2SO4 do not change significantly with respect to pristine graphite. CV in 10 M H2SO4 revealed a higher concentration of redox active surf ace groups. This is attributed to an oxidative attack by SO3 in the co urse of the exfoliation process.