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[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© The Royal Society of Chemistry and the Centre National de la Recherche Scientifique.The electrical conductivity and charge transfer resistance (Rct) of reduced graphene oxide (rGO) with the addition of copper are reported. The samples of rGO with copper addition were successfully synthesized via in situ chemical exfoliation using a microwave-assisted technique. Annealing was performed at various temperatures to determine the optimal annealing temperature for the sample with the best electrical conductivity performance. The resulting samples were characterized using attenuated total reflectance-Fourier transform infrared (ATR-FTIR) characterization, X-ray diffraction (XRD), Raman spectrometry, energy dispersive X-ray (EDX) spectrometry, scanning electron microscopy (SEM), four-point probe, and electrochemical impedance spectroscopy (EIS). The highest conductivity value of 24.85 S cm−1 was obtained for the rGO sample with addition of 1 wt% copper and annealing treatment at 300 °C for 45 minutes. The electrochemical properties of the samples were characterized using electrochemical impedance spectroscopy (EIS), resulting in a charge transfer resistance (Rct) value of 3.86 Ω for sample B with the addition of 1 wt% copper. A possible reaction mechanism and explanations for the influence of Cu, Cu2O, and CuO on the electrical conductivity and charge transfer resistance value of rGO are also described in this report.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text]This work was supported partially by Penelitian Unggulan Perguruan Tinggi (PUPT) 2016, Ministry of Education, Research, and Technology, Republic of Indonesia. We gratefully acknowledge the support from the United States Agency for International Development (USAID) through the Sustainable Higher Education Research Alliances (SHERA) program. We would like to thank Dr Arramel and Ms Tan Wei Ling (National University of Singapore) for their kind assistance in conducting the Raman measurements. We would like to thank Dr Isdiriayani Nurdin (Chemical Engineering Department, ITB) for her kind assistance in conducting the EIS measurements. E. Stavila would like to thank the Insentif Postdoc Program, ITB, for funding support.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1039/C8NJ03614D[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]