• 主页
  • 查找结果
  • Raman scattering of non-planar graphite: arched edges, polyhedral crystals, whiskers and cones.

Raman scattering of non-planar graphite: arched edges, polyhedral crystals, whiskers and cones.

Philosophical transactions. Series A, Mathematical, physical, and engineering sciences (2004-10-16)
PingHeng Tan, Svetlana Dimovski, Yury Gogotsi
摘要

Planar graphite has been extensively studied by Raman scattering for years. A comparative Raman study of several different and less common non-planar graphitic materials is given here. New kinds of graphite whiskers and tubular graphite cones (synthetic and natural) have been introduced. Raman spectroscopy has been applied to the characterization of natural graphite crystal edge planes, an individual graphite whisker, graphite polyhedral crystals and tubular graphite cones. Almost all of the observed Raman modes were assigned according to the selection rules and the double-resonance Raman mechanism. The polarization properties related to the structural features, the line shape of the first-order dispersive mode and its combination modes, the frequency variation of some modes in different carbon materials and other unique Raman spectral features are discussed here in detail.

材料
货号
品牌
产品描述

Sigma-Aldrich
石墨, powder, <20 μm, synthetic
Sigma-Aldrich
石墨, flakes
Sigma-Aldrich
石墨, powder, <45 μm, ≥99.99% trace metals basis
Sigma-Aldrich
石墨, rod, L 150 mm, diam. 3 mm, low density, 99.995% trace metals basis
Sigma-Aldrich
石墨, powder, <150 μm, 99.99% trace metals basis
Sigma-Aldrich
石墨, rod, L 150 mm, diam. 6 mm, 99.995% trace metals basis