Preparation of three-dimensional graphene foam for high performance supercapacitors

Ping, Yunjie; Gong, Youning; Fu, Qiang; Pan, Chunxu

doi:10.1016/j.pnsc.2017.03.005

Cited by 60 publications

(34 citation statements)

References 33 publications

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“…It is still very challenging to obtain high cyclic stability as most of them lose performance after going through multiple folding/bending cycles. One of the possible avenues is to use three‐dimensional foam as flexible substrate that can provide high accessible surface area and pore geometry to accommodate electro active species with high affinity . In such context, carbon/graphite‐based foams could be more suitable due to their high chemical stability than the metallic foams …”

Section: Introductionmentioning

confidence: 99%

“…One of the possible avenues is to use threedimensional foam as flexible substrate that can provide high accessible surface area and pore geometry to accommodate electro active species with high affinity. [23][24][25][26] In such context, carbon/graphite-based foams could be more suitable due to their high chemical stability than the metallic foams. 26 In this work, we have used a novel approach to electrodeposit PANI nanowires on the pore walls of polyacrylonitrile (PAN) graphite foam (GF).…”

mentioning

confidence: 99%

“…[23][24][25][26] In such context, carbon/graphite-based foams could be more suitable due to their high chemical stability than the metallic foams. 26 In this work, we have used a novel approach to electrodeposit PANI nanowires on the pore walls of polyacrylonitrile (PAN) graphite foam (GF). Due to high electrical conductivity and flexibility, the PAN-GF act as flexible current collector and provides high accessible surface area for PANI deposition.…”

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confidence: 99%

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Flexible supercapacitor based on three‐dimensional cellulose/graphite/polyaniline composite

et al. 2018

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Summary Fast charge‐discharge rate and high areal capacitance, along with high mechanically stability, are the pre‐requisites for flexible supercapacitors to power flexible electronic devices. In this paper, we have used three‐dimensional polyacrylonitrile graphite foam as flexible current collector for electro‐deposition of polyaniline (PANI) nanowires. The graphite foam with PANI was then used to fabricate symmetric supercapacitor. The fabricated supercapacitor in the three‐electrode system shows a high specific capacitance (Csp) of 357 F.g−1 and areal capacitance (Careal) of 7142 mF.cm−2 in 1 M H2SO4 at current density of 80 mA.cm−2, while using two‐electrode system, it shows Csp of 256 F.g−1 and Careal of 5120 mF.cm−2 in 1 M H2SO4 at current density of 100 mA.cm−2. The current density of 100 mA.cm−2 is up to 10 folds higher than reported current densities of many PANI‐based supercapacitors. The high capacitance can be attributed to the spongy network of PANI‐NWs on three‐dimensional graphite surface which provides an easy path for electrolyte ions in active electrode materials. The developed supercapacitor shows specific energy of 64.8 Whkg−1 and a specific power of 6.1 kWkg−1 with a marginally decrease of 1.6% in Csp after 1000th cycles, along with coulombic efficiency retention of 87% in polyvinyl alcohol/H2SO4 gel electrolyte. This flexible supercapacitor exhibits great potential for energy storage application.

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Section: Introductionmentioning

confidence: 99%

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confidence: 99%

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confidence: 99%

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Flexible supercapacitor based on three‐dimensional cellulose/graphite/polyaniline composite

et al. 2018

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“…Their nanocomposites with conducting polymers have high performance and improved properties [50,51]. Carbon nanomaterials-such as CNT [52], GN [53], GN foams [54], and carbon nanofibers [45,55]-with their 3D and 2D architectures have been broadly described owing to their ideal morphological and physical possessions for energy storage applications. One of the most widely used carbon materials is activated carbon.…”

Section: Carbon Materialsmentioning

confidence: 99%

Carbon-Based Polymer Nanocomposite for High-Performance Energy Storage Applications

et al. 2020

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In recent years, numerous discoveries and investigations have been remarked for the development of carbon-based polymer nanocomposites. Carbon-based materials and their composites hold encouraging employment in a broad array of fields, for example, energy storage devices, fuel cells, membranes sensors, actuators, and electromagnetic shielding. Carbon and its derivatives exhibit some remarkable features such as high conductivity, high surface area, excellent chemical endurance, and good mechanical durability. On the other hand, characteristics such as docility, lower price, and high environmental resistance are some of the unique properties of conducting polymers (CPs). To enhance the properties and performance, polymeric electrode materials can be modified suitably by metal oxides and carbon materials resulting in a composite that helps in the collection and accumulation of charges due to large surface area. The carbon-polymer nanocomposites assist in overcoming the difficulties arising in achieving the high performance of polymeric compounds and deliver high-performance composites that can be used in electrochemical energy storage devices. Carbon-based polymer nanocomposites have both advantages and disadvantages, so in this review, attempts are made to understand their synergistic behavior and resulting performance. The three electrochemical energy storage systems and the type of electrode materials used for them have been studied here in this article and some aspects for example morphology, exterior area, temperature, and approaches have been observed to influence the activity of electrochemical methods. This review article evaluates and compiles reported data to present a significant and extensive summary of the state of the art.

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“…They reported the specific capacitance for SWCNTs as 36 F g −1 and that for composites film as 100 F g −1 . Ping et al [17] compared the 2D graphene paper and the 3D graphene foam electrodes and showed the specific capacitances were 82.9 and 128 F g −1 , respectively. A high-performance supercapacitor based on the fine sandpaper-based electrodes and a microporous separator coated with a H 3 PO 4 / PVA gel electrolyte and graphene/MWCNTs electrode has been reported by Yu et al [18].…”

Section: Introductionmentioning

confidence: 99%

Graphite nanoparticles paper supercapacitor based on gel electrolyte

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Ghoranneviss

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2018

Mater Renew Sustain Energy

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In this study, three-type paper supercapacitors based on the polyvinylidene fluoride (PVDF) and polyvinyl alcohol (PVA)/ phosphoric acid (H 3 PO 4) gel electrolytes and graphite nanoparticles (GNPs) electrodes have been fabricated. The gel electrolytes and electrodes films have been coated on the paper using push coating and then characterized by scanning electron microscopy (SEM). In two types of the paper supercapacitors, on the PVDF gel electrolyte film, a layer of PVA/water and BaTiO 3 as a gel separator film has been coated. The specific capacitance of the paper supercapacitors using cyclic voltammetry (CV) and galvanostatic (charge-discharge) methods at the scan rates 20 and 150 mV s −1 have been investigated. The paper supercapacitor based on the BaTiO 3 separator film showed higher specific capacitance (312 F g −1) compared to other samples. Also, using electrochemical impedance spectroscopy (EIS), the Nyquist and Bode curves of paper supercapacitors have been measured. For the paper supercapacitors based on the PVDF gel electrolyte film and BaTiO 3 separator film using the Nyquist curves, the equivalent series resistance (ESR) was 306 Ω and 125 Ω, respectively. The paper supercapacitor based on BaTiO 3 gel separator structure represents a new type of flexible supercapacitor with high performance that can be applied to electronic devices.

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Preparation of three-dimensional graphene foam for high performance supercapacitors

Cited by 60 publications

References 33 publications

Flexible supercapacitor based on three‐dimensional cellulose/graphite/polyaniline composite

Flexible supercapacitor based on three‐dimensional cellulose/graphite/polyaniline composite

Carbon-Based Polymer Nanocomposite for High-Performance Energy Storage Applications

Graphite nanoparticles paper supercapacitor based on gel electrolyte

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