Raman Scattering and Infrared Absorption Investigation of Hydrogen Configuration State in Mechanically Milled Graphite under H2 Gas Atmosphere

Norio Ogita; Kazushige Yamamoto; Chihiro Hayashi; Tomoyoshi Matsushima; Shinichi Orimo; Takayuki Ichikawa; Hironobu Fujii; Masayuki Udagawa

doi:10.1143/jpsj.73.553

Raman Scattering and Infrared Absorption Investigation of Hydrogen Configuration State in Mechanically Milled Graphite under H₂ Gas Atmosphere

Norio Ogita, Kazushige Yamamoto, Chihiro Hayashi, Tomoyoshi Matsushima, Shinichi Orimo, Takayuki Ichikawa, Hironobu Fujii, Masayuki Udagawa

Author information

Norio Ogita
Faculty of Integrated Arts and Sciences, Hiroshima University
Graduate School of Advanced Sciences of Matter, Hiroshima University
Kazushige Yamamoto
Graduate School of Advanced Sciences of Matter, Hiroshima University
Chihiro Hayashi
Graduate School of Biosphere Science, Hiroshima University
Tomoyoshi Matsushima
Graduate School of Biosphere Science, Hiroshima University
Shinichi Orimo
Faculty of Integrated Arts and Sciences, Hiroshima University
Graduate School of Biosphere Science, Hiroshima University
Takayuki Ichikawa
Graduate School of Advanced Sciences of Matter, Hiroshima University
Natural Science Center for Basic Research and Development, Hiroshima University
Hironobu Fujii
Graduate School of Advanced Sciences of Matter, Hiroshima University
Natural Science Center for Basic Research and Development, Hiroshima University
Masayuki Udagawa
Faculty of Integrated Arts and Sciences, Hiroshima University
Graduate School of Advanced Sciences of Matter, Hiroshima University

Keywords: graphite, mechanical milling, hydrogen, C–H₂ configuration, Raman scattering, infrared absorption

JOURNAL RESTRICTED ACCESS

2004 Volume 73 Issue 3 Pages 553-555

DOI https://doi.org/10.1143/jpsj.73.553

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Abstract

The hydrogen binding state in the mechanically milled graphite has been investigated by Raman scattering and infrared absorption. There is no C–H vibration signal in Raman scattering spectra, while, a C–H vibration signal has been clearly observed by infrared absorption. The dominant hydrogen configuration is C–H₂ and the contribution of C–H₃ slightly increases for a longer milling time. This result indicates the first experimental determination of the hydrogen state in the mechanically milled graphite under hydrogen gas atmosphere.

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