I have deposited Graphene oxide on Cu substrate with the help of electrochemical work station with the negative voltage applied. I got 3 peaks at different range. What does these peaks means at different range?
42 and 50º seem to be the (111) and (200) lattice of Cu fcc respectively.
At 18º I have no idea
Graphene usually appears at 2 theta = 26.5 o, but in your case, you are depositing graphene oxide by electrochemically, hence, there is a chance of reduction of GO.
Dear Mr. Sujoy
Thank you very much for your answer. Could you describe any of the related publication so I will mention in my research paper.
The peak position of graphene oxide varies from 10 to 18º, depending on the preparation method, the number of graphene layers, defectiveness degree, etc., I think
See, for example, Shangkun Li, Xiaofeng Lu*, Yanpeng Xue, Junyu Lei, Tian Zheng, Ce Wang Fabrication of Polypyrrole/Graphene Oxide Composite Nanosheets and Their Applications for Cr(VI) Removal in Aqueous Solution // PLOS ONE, 2012, V.7, Issue 8, e43328
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3425553/pdf/pone.0043328.pdf
F.Y. Ban, S.R. Majid, N.M. Huang, H.N. Lim Graphene Oxide and Its Electrochemical Performance // Int. J. Electrochem. Sci., 7 (2012) 4345 - 4351
http://www.electrochemsci.org/papers/vol7/7054345.pdf
Galina
Thanks for your answer. However, still I can not interpret the peak in between 15 to 20 (2θ range). Could you please enlighten in this matter?
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