Effects of Synthesis Method on Electrical Properties of Graphene

3rd International Conference on Global Sustainability and Chemical Engineering

工业技术;化学工业

Ahmad Fuad, M.F.I.^1 ; Jarni, H.H.^1 ; Shariffudin, W.N.^1 ; Othman, N.H.^1 ; Che Abdul Rahim, A.N.^1

Faculty of Chemical Engineering, Universiti Teknologi MARA, Selangor, Shah Alam

40450, Malaysia^1

关键词: Chemical method;    Electrochemical impedance spectrometry;    Fourier transform infrared spectrometry;    Graph patterns;    Hydrazine hydrate;    Reduction process;    Synthesis method;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/358/1/012051/pdf
DOI  :  10.1088/1757-899X/358/1/012051

学科分类：工业工程学

来源: IOP

【 摘 要 】

The aim of this study is to achieve the highest reduction capability and complete reductions of oxygen from graphene oxide (GO) by using different type of chemical methods. The modification of Hummer's method has been proposed to produce GO, and hydrazine hydrate has been utilized in the GO's reduction process into graphene. There are two types of chemical method are used to synthesize graphene; 1) Sina's method and 2) Sasha's method. Both GO and graphene were then characterized using X-Ray Powder Diffraction (XRD) and Fourier Transform Infrared Spectrometry (FT-IR). The graph patterns obtained from XRD showed that the values of graphene and GO are within their reliable ranges, FT-IR identified the comparison functional group between GO and graphene. Graphene was verified to experience the reduction process due to absent of functional group consist of oxygen has detected. Electrochemical impedance spectrometry (EIS) was then conducted to test the ability of conducting electricity of two batches (each weighted 1.6g) of graphene synthesized using different methods (Sina's method and Sasha's method). Sasha's method was proven to have lower conductivity value compare to Sina's method, with value of 6.2E+02 S/m and 8.1E+02 S/m respectively. These values show that both methods produced good graphene; however, by using Sina's method, the graphene produced has better electrical properties.