On the controlled electrochemical preparation of R4N+ graphite intercalation compounds and their host structural deformation effects

Adam J. Cooper, Matěj Velický, Ian A. Kinloch, Robert A W Dryfe*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)
42 Downloads (Pure)

Abstract

We present electrochemical studies of tetraalkylammonium (R 4N+) reduction chemistry at Highly Orientated Pyrolytic Graphite (HOPG) and glassy carbon (GC) electrodes. We show that by electrochemically controlled intercalation and formation of a graphite intercalation complex (GIC) into layered HOPG, the irreversible reduction of the tetraalkylammonium cation can be prevented and subsequent de-intercalation of the GIC via the use of potentiostatic control is achievable. R4N + cations with varying alkyl chain lengths (methyl, ethyl and butyl) have been shown to exhibit excellent charge recovery effects during charge/discharge studies. Finally the effects of electrode expansion on the degree of recovered charge have been investigated and the observed effects of R4N+ intercalation on the graphite cathode have been probed by scanning electron microscopy (SEM) and X-ray diffraction (XRD).

Original languageEnglish
Pages (from-to)34-40
Number of pages7
JournalJournal of Electroanalytical Chemistry
Volume730
Early online date31 Jul 2014
DOIs
Publication statusPublished - 15 Sep 2014
Externally publishedYes

Keywords

  • Graphite intercalation complex
  • Intercalation
  • Tetraalkylammonium

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Analytical Chemistry
  • Electrochemistry

Fingerprint

Dive into the research topics of 'On the controlled electrochemical preparation of R4N+ graphite intercalation compounds and their host structural deformation effects'. Together they form a unique fingerprint.

Cite this