Controlled Synthesis and Characterization of rGO Materials by Hydrothermal Method
Main Article Content
Abstract
Oxidative exfoliation followed by chemical reduction is an effective method to synthesize reduced graphene oxide (rGO). However, it is challenging to synthesize large scale high quality rGO by a simple and inexpensive method. In this study, rGO materials were synthesized by a scalable hydrothermal method, where the temperatures were controlled to obtain different morphology and quality of rGO. The morphology and quality of the synthesized rGO were examined by scanning electron microscopy (SEM), transmission electron microscopy (TEM), Photoluminescence (PL), and Raman spectroscopy. Results pointed out that the hydrothermal temperatures strongly influenced on the morphology and quality of the synthesized rGO. Material synthesized at 160°C has the highest quality with layered structure of large rGO flakes. The synthesized rGO is potential for sensing and supercapacitor applications.
Keywords
rGO, Hydrothermal, Morphology, SEM, TEM, PL, Characteristics
Article Details
References
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[13] X. Wang, X. Wen, Z. Liu, Y. Tan, Y. Yuan, P. Zhang; Rapid and efficient synthesis of soluble graphene nanosheets using N-methyl-p-aminophenol sulfate as a reducing agent; Nanotechnology. 23 (2012) 485604. doi: 10.1088/0957-4484/23/48/485604.
[14] L. Van Nang, N.D. Hoa, C. Van Phuoc, C.T. Quy, P. Van Tong, V. Van Quang, N. Van Duy, N. Van Hieu; Scalable Preparation of Graphene: Effect of Synthesis Methods on the Material Characteristics; Sci. Adv. Mater. 7 (2015) 1013–1020. doi: 10.1166/sam.2015.2171.
[15] D. Hou, Q. Liu, X. Wang, Y. Quan, Z. Qiao, L. Yu, S. Ding; Facile synthesis of graphene via reduction of graphene oxide by artemisinin in ethanol; J. Mater. (2018). doi: 10.1016/j.jmat.2018.01.002.
[16] S.J. Rowley-Neale, E.P. Randviir, A.S. Abo Dena, C.E. Banks; An overview of recent applications of reduced graphene oxide as a basis of electroanalytical sensing platforms; Appl. Mater. Today. 10 (2018) 218–226. doi: 10.1016/j.apmt.2017.11.010.
[17] J. Luo, H.D. Jang, T. Sun, L. Xiao, Z. He, A.P. Katsoulidis, M.G. Kanatzidis, J.M. Gibson, J. Huang; Compression and Aggregation-Resistant Particles of Crumpled Soft Sheets; ACS Nano. 5 (2011) 8943–8949. doi: 10.1021/nn203115u.
[18] T. Purkait, G. Singh, M. Singh, D. Kumar, R.S. Rey; Large area few-layer graphene with scalable preparation route shows promise for high-performance supercapacitor; Sci. Rep. 7 (2017) 15239. doi: 10.1038/s41598-017-15463-w.
[19] X. Liu, G. Zeng, S. Jiang; One-step synthesis of CdS-reduced graphene oxide composites based on high energy radiation technique; Radiat. Phys. Chem. 119 (2016) 24–28. doi: 10.1016/j.radphyschem.2015.09.007.
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