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Facile electrodeposition of graphene/polyaniline film on flexible substrate for supercapacitor application
Stephanie R.a, Judawisastra H.a, Sumboja A.a
a Materials Science and Engineering Research Group, Faculty of Mechanical and Aerospace Engineering, Institut Teknologi Bandung, Coblong, Bandung, Indonesia
[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]© 2020 American Institute of Physics Inc.. All rights reserved.Composites of electrode materials are of interest to further improve the performance of supercapacitor devices. Among other materials, graphene/polyaniline composite is one of the most promising materials due to their synergistic charge storage mechanism in the form of electrical double layer capacitance and pseudocapacitance. This work presents a facile way to prepare graphene/polyaniline film on a flexible gold deposited PET substrate through a one-step potentiodynamic method. The composites are synthesized from a solution of aniline and graphene flakes in sulfuric acid solution by varying the deposition cycle during the potentiodynamic method. The composite film shows a better performance than the pristine polyaniline in terms of capacitance, rate retention and stability over numerous cyclic voltammetry scans. The maximum value of areal capacitance is achieved with the graphene/polyaniline electrode prepared from 15 deposition cycle with the value of 167.8 mF cm-2. The best rate retention (up to 24.6%) is acquired by the sample made with 10 deposition cycles. Furthermore, addition of graphene also helps to enhance the cycle life of the electrode as shown by the insignificant capacitance fading during 500 cycles of cyclic voltammetry test. This work illustrates a promising platform to fabricate a stable and high areal capacitance electrode of supercacitor device with flexible substrate.[/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 by the Asahi Glass Foundation.[/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/10.1063/5.0015702[/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]