Superstructures of Graphite Intercalation Compound Formed by Sodium-Hydroxide Solution Studied by Scanning Tunneling Microscopy

Authors

Koji Miyake, University of Tsukuba, Japan
Aiso Yoshiaki, University of Tsukuba, Japan
Makoto Komiyama, University of Tokyo, Japan
Hidemi Shigekawa, University of Tsukuba, JapanFollow

Abstract

Highly oriented pyrolytic graphite (HOPG) treated with sodium hydroxide solution was found to show an X-ray diffraction pattern characteristic of a stage-8 intercalation compound. Superstructures such as 2 X 2, √3 X √3 and noble orthorhombic lattices were observed on the NaOH-treated graphite surfaces by scanning tunneling microscopy, as was previously observed on stage-1 alkali-metal graphite intercalation compound (GIC) surfaces formed by Li, K, Rb and Cs intercalates. The orthorhombic phase has a periodic structure formed by four bright and two dark rows, which were explained by the intercalant arrangement occupying two different sites, in the GIC.

Recommended Citation

Miyake, Koji; Yoshiaki, Aiso; Komiyama, Makoto; and Shigekawa, Hidemi (1994) "Superstructures of Graphite Intercalation Compound Formed by Sodium-Hydroxide Solution Studied by Scanning Tunneling Microscopy," Scanning Microscopy: Vol. 8: No. 3, Article 3.
Available at: https://digitalcommons.usu.edu/microscopy/vol8/iss3/3