Hydrogen in the mechanically prepared nanostructured graphite

S. Orimo, G. Majer, T. Fukunaga, A. Züttel, L. Schlapbach, H. Fujii

Research output: Contribution to journalArticlepeer-review

231 Citations (Scopus)

Abstract

Nanostructured graphite was prepared by mechanical milling under hydrogen atmosphere. Several samples obtained after different milling times were systematically examined to get fundamental information about the structures and hydrogen concentrations. After the expansion of the graphite interlayer, the long-range ordering of the interlayer disappears continuously with increasing milling time. The hydrogen concentration reaches up to 7.4 mass % (CH0.95) after milling for 80 h. Judging from the radial distribution function determined by the neutron diffraction measurement, there are two types of deuterium coordinations: deuterium atoms in the graphite interlayers and that with the CDx covalent bonds, respectively.

Original languageEnglish
Pages (from-to)3093-3095
Number of pages3
JournalApplied Physics Letters
Volume75
Issue number20
DOIs
Publication statusPublished - 1999 Nov 15
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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