Open AccessAnalysis of the structural characteristics of graphene materials obtained by electrochemical exfoliation of graphite
Author(s) -
Yu. A. Khan,
T. P. Dyachkova,
Elena Burakova,
E. S. Bakunin,
А. В. Рухов,
Н. В. Орлова,
E. Yu. Obraztsova
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/693/1/012025
Subject(s) - exfoliation joint , raman spectroscopy , graphene , graphite , materials science , crystallite , electrochemistry , scanning electron microscope , electrolyte , nanomaterials , diffraction , analytical chemistry (journal) , nanotechnology , chemical engineering , composite material , chemistry , electrode , optics , metallurgy , organic chemistry , physics , engineering
The aim of the research is to study the structural characteristics of graphene materials obtained by electrochemical exfoliation of graphite. The objects of study are prepared in electrochemical cells using alkaline and acid electrolytes with various applied voltages. Scanning electron microscopy, Raman spectroscopy, and X-ray diffraction have been used as research methods. The possibility of a theoretical calculation of the structural characteristics of nanomaterials (the defectiveness parameter, the density of the defects, the average distance between defects and average crystallite size) obtained by electrochemical exfoliation, according to Raman spectroscopy, is discovered. The results of these calculations satisfactorily correlate with the data of X-ray analysis.