Integration of ultrathin graphene/polyaniline composite nanosheets with a robust 3D graphene framework for highly flexible all-solid-state supercapacitors with superior energy density and exceptional cycling stability

Li, Ke; Liu, Jingjing; Huang, Yanshan; Bu, Fanxing; Xu, Yuxi

doi:10.1039/c6ta11224b

Cited by 119 publications

(59 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The incorporation of pseudocapacitive ECACs into 3DG provides one potential solution. Thus, various pseudocapacitive ECACs including conducting polymers, metal oxides/hydroxides, and metal sulfides have been combined with 3DG to explore their pseudocapacitive properties . For example, Ni(OH) 2 nanosheets have been integrated into 3DG by one‐pot in situ growth and self‐assembly ( Figure A,B) .…”

Section: Electrochemical Energy Storage Applicationsmentioning

confidence: 99%

“…Combining the intrinsic advantage of high accessible surface of PANI nanowire and the conductive porous structure of 3DG, this 3DG–PANI nanowire array film showed higher specific capacitance, better rate capability, and more excellent cycling stability than 3DG and RGO (Figure D). Recently, we further modified the structure of 3DG–PANI by inserting GO–PANI ultrathin nanosheets into 3DG through the self‐assembly of GO–PANI and GO mixture . In this case, GO–PANI ultrathin nanosheets were well sandwiched by graphene nanosheets, which further increase the stability of PANI and lead to much better electrochemical properties including a high specific capacitance of 777 F g −1 and 990 F cm −3 at 1 A g −1 and an exceptional cycling stability with 85% capacitance retention after 60 000 deep cycles in a three electrode cell configuration.…”

Section: Electrochemical Energy Storage Applicationsmentioning

confidence: 99%

“…In this case, GO–PANI ultrathin nanosheets were well sandwiched by graphene nanosheets, which further increase the stability of PANI and lead to much better electrochemical properties including a high specific capacitance of 777 F g −1 and 990 F cm −3 at 1 A g −1 and an exceptional cycling stability with 85% capacitance retention after 60 000 deep cycles in a three electrode cell configuration. Moreover, benefitting from robust flexibility and mechanical strength, the 3DG–PANI film could be assembled into all‐solid‐state symmetric supercapacitor with extraordinary electrochemical properties . Compared to conductive polymers, organic molecules with redox activity have been rarely combined with 3DG for supercapacitor applications.…”

Section: Electrochemical Energy Storage Applicationsmentioning

confidence: 99%

See 2 more Smart Citations

3D Graphene Composites for Efficient Electrochemical Energy Storage

Shakir

2018

Adv Materials Inter

Self Cite

View full text Add to dashboard Cite

graphite anodes and lithium transition metal oxide cathodes have been commercialized and played indispensable role in our daily life. However, the electrochemical performance of these devices such as energy density, power density, and cycle life as well as safety is far from the satisfying growing demand from our society and new technology. [11] Thus, we have seen an increasing wave of interest in the rational design and synthesis of electrode materials that may offer superior energy density, power density, or long-term endurance and safety. [12][13][14][15][16][17][18][19][20] Graphene, a 2D single-atomic layer of carbon atoms with conjugated hexagonal lattice, has received enormous attention due to its huge surface area, excellent electrical conductivity, high thermal conductivity, robust mechanical strength, and exceptional electrochemical stability. [20][21][22][23][24][25] With unique physical and chemical properties, graphene is considered as an ideal electron conductor for electrochemical applications. [26][27][28][29] Thus, graphene-based composites have emerged as exciting electrode materials for various electrochemical energy storage devices, including supercapacitor, lithium-/sodium-ion battery, lithium-sulfur battery, and lithium-oxygen battery. However, with extended π electrons and strong π-π interaction, graphene tends to strongly couple with each other to form bulk aggregates, which could greatly reduce accessible surface and prevent the formation of uniform composites that are necessary for optimized electrochemical performance. 3D graphene (3DG) with highly continuous graphene network and hierarchically interconnected porosity can offer highly efficient electron and ion transport pathway, large accessible surface area, and robust mechanical strength to address those above drawbacks. [30][31][32][33] Moreover, most of 3DG-based composites could be mechanically pressed into freestanding film and directly used as conductive agent-free and binder-free electrodes, which makes them very promising as lightweight and flexible electrodes. Therefore, integration of electrochemically active components (ECACs) with 3DG to produce high-performance 3DG composite electrode materials has become a significant scientific focus in recent years. So far, 3DG composites with various architectures have been constructed by different strategies and used as electrode materials for various electrochemical energy storage devices. [34,35] The formation of 3DG composites involves the combination of graphene with other functional components and the construction of 3D porous structures. The exact methods can exert a great 3D graphene (3DG) composites have attracted significant interest for electrochemical energy storage applications, including supercapacitor, lithium-/ sodium-ion battery, lithium-sulfur battery, and lithium-oxygen battery. With an interpenetrating network structure of conductive skeleton of graphene and highly continuous porous channels, the 3DG composites can not only ensure efficient electron and ion transpo...

show abstract

Section: Electrochemical Energy Storage Applicationsmentioning

confidence: 99%

Section: Electrochemical Energy Storage Applicationsmentioning

confidence: 99%

Section: Electrochemical Energy Storage Applicationsmentioning

confidence: 99%

See 1 more Smart Citation

3D Graphene Composites for Efficient Electrochemical Energy Storage

Shakir

2018

Adv Materials Inter

Self Cite

View full text Add to dashboard Cite

show abstract

“…Supercapacitors are essential components of future energy storage systems as they possess high power density, quick charge‐discharge rates and long cycle life, making them complementary to batteries and fuel cells . Supercapacitors have a relatively simple design, are lightweight and suitable for a range of applications from circuitry and portable electronics to electric vehicles . There are two types of capacitance mechanisms which can contribute to the overall capacitance of a supercapacitor.…”

Section: Introductionmentioning

confidence: 99%

Thiourea Bismuth Iodide: Crystal Structure, Characterization and High Performance as an Electrode Material for Supercapacitors

Mallows

Adams

et al. 2019

Batteries & Supercaps

View full text Add to dashboard Cite

This paper reports on the synthesis, crystal structure and application of a novel hybrid bismuth-halide complex: (CN 2 SH 5 ) 3 BiI 6 (TBI) for supercapacitor applications, featuring merits including high areal capacitance, low cost, solution-processability and non-toxicity. Single crystal X-ray diffraction reveals that TBI crystallizes in the monoclinic system, with discrete [BiI 6 ] 3À octahedra as the inorganic motif. Utilizing TBI as the active supercapacitor electrode material with carbon cloth current collector and aqueous NaClO 4 electrolyte, an electrode areal capacitance of 3.32 F/cm 2 and a systemic specific capacitance of 1030 F/g was achieved when the device operates as an electric double-layer capacitor (EDLC). The supercapacitor device shows excellent capacitance retention even after 5,000 charge-discharge cycles. The powder XRD patterns, Raman spectroscopy and SEM images of TBI electrodes were compared before and after the cycling test to demonstrate the material stability and investigate the film morphology.[a] T.

show abstract

“…However, pristine GA prepared by either chemical or thermal reduction from graphene oxide (GO) always exhibits a relatively low specific capacitance about 130 F g −1 in aqueous electrolytes due to the agglomeration of reduced graphene sheets . To enhance its capacitance together with the avoidance of the agglomeration, GA can be used as a substrate for the loading of metal oxides, conducting polymers or carbons . Such ways indeed improve its capacitive performance, but the traditional route to produce GO is low yield and relatively complicated, which generally undergoes the oxidization of natural graphite and then the ultrasonic exfoliation of graphite oxides .…”

Section: Introductionmentioning

confidence: 99%

Ordered Mesoporous Carbons Loading on Sulfonated Graphene by Multi‐Components Co‐Assembly for Supercapacitor Applications

Guo

Xie

et al. 2018

Energy Tech

View full text Add to dashboard Cite

Ordered mesoporous carbons (OMC) loading on sulfonated graphene (OMC/SG) have been fabricated by multi-components co-assembly followed by thermal polymerization and carbonization. OMC/SG composites possess the hierarchically ordered hexagonal mesostructure with the lattice unit parameter and porous diameter about 10 nm and 4 nm, respectively. Sulfonated graphene is integrated into the interpenetrated network structures via covalent bonding and hydrogen bonding, as well as is highly dispersed in OMC matrix. OMC/ SG composite shows a specific surface area high up to 1708.78 m 2 g À 1 , and a mesoporous ratio as high as 80 %. Meanwhile, the obtained OMC/SG exhibits a specific capacitance as high as 314.2 F g À 1 at 1.0 A g À 1 , while OMC based electrode is only 196.6 F g À 1 . In addition, the resultant OMC/ SG composites display good rate capability (70 % of the capacitance retained at current density high up to 100 A g À 1 ), and an excellent cycling stability (no capacitance loss over 5000 cycles). In particular, the surface capacitance of OMC/ SG (C s ) increases up to 18.4 μF cm À 2 at 1 A g À 1 . These optimized interconnected porous structures in the OMC/SG composites are favorable to the accessibility, rapid diffusion of aqueous electrolytes, while sulfonated graphene can also facilitate the transport of electrons and provide better interface wettability of electrodes with electrolytes, thereby leading to an excellent energy storage performance.[a] S. . XPS survey spectra of OMC/SG-0.04 and OMC (a), S 2p XPS spectra of OMC/SG-0.04 (b), C 1s XPS spectra of OMC/SG-0.04 (c) and OMC (e), O 1s XPS spectra of OMC/SG-0.04 (d) and OMC (f).

show abstract

Integration of ultrathin graphene/polyaniline composite nanosheets with a robust 3D graphene framework for highly flexible all-solid-state supercapacitors with superior energy density and exceptional cycling stability

Abstract: Superior energy density and exceptional cycling stability of conducting polymer-based flexible all-solid-state supercapacitors have been successfully achieved.

Cited by 119 publications

References 47 publications

3D Graphene Composites for Efficient Electrochemical Energy Storage

3D Graphene Composites for Efficient Electrochemical Energy Storage

Thiourea Bismuth Iodide: Crystal Structure, Characterization and High Performance as an Electrode Material for Supercapacitors

Ordered Mesoporous Carbons Loading on Sulfonated Graphene by Multi‐Components Co‐Assembly for Supercapacitor Applications

Contact Info

Product

Resources

About