• 文献标题:   X-ray diffraction analysis on layers in graphene samples obtained by electrolysis in molten salts: a new perspective
  • 文献类型:   Article
  • 作  者:   ANDONOVIC B, GROZDANOV A, PAUNOVIC P, DIMITROV AT
  • 作者关键词:   xray diffraction, graphene, electrolysi, raman spectra, xray diffraction, electrolysi, graphene layer, scherrer equation, nonuniform thicknes, hightemperature electrolysi, molten salt, raman spectra, c
  • 出版物名称:   MICRO NANO LETTERS
  • ISSN:   1750-0443
  • 通讯作者地址:   SS Cyril Methodius Univ
  • 被引频次:   6
  • DOI:   10.1049/mnl.2015.0325
  • 出版年:   2015

▎ 摘  要

There are several accepted methods used for X-ray diffraction analysis on graphene layers and sample's stacking height L-C. The Scherrer equation is avoided since the layers in the graphene samples are non-uniformly distributed and therefore the samples have non-uniform thickness. Instead, a model that includes thickness distribution is used to calculate the average number of layers and then the stacking height. The analysis was performed on 12 graphene samples produced by high-temperature electrolysis in molten salts. Another method that was used to calculate the number of layers and hence the samples' stacking height, was Raman spectra C-peak position method. It served as a control model for the analysed samples, since for four samples the corresponding parts of the Raman spectra were not usable due to the very low-frequency region. However, the obtained results of both methods were in agreement, and indicate that studied graphene samples are few layered.