Kinetically enhanced pseudocapacitance of conducting polymer doped with reduced graphene oxide through a miscible electron transfer interface

Park, Han-Saem; Lee, Myeong Hee; Hwang, Ryeo Yun; Park, Ok Kyung; Jo, Kiyoung; Lee, Taemin; Kim, Byeong Su; Song, Hyun Kon

doi:10.1016/j.nanoen.2013.10.001

Cited by 22 publications

(11 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[42] The disordered carbon level may be attributed to the strength of the interconnection between the MXenen anosheets and PPy backbones, and the peak area percentage of this peak increases from 2.1% for Ti 3 C 2 T x @PPy to 3.2 %f or Ti 3 C 2 T x @PPy NW,i ndicating the better electronic conductivity of Ti 3 C 2 T x @PPy NW. [43,44] Consequently, the pseudocapacitive process is greatlyf acilitated, as further verified by the Nyquist plots of thesetwo electrodes (Figure 5e). N 2 adsorption/desorption Brunauer-Emmett-Te ller (BET) measurements were conducted to examinethe pore characteristics of the samples.…”

Section: Resultssupporting

confidence: 61%

Intertwined Titanium Carbide MXene within a 3 D Tangled Polypyrrole Nanowires Matrix for Enhanced Supercapacitor Performances

Tran

Hong

et al. 2018

Chemistry A European J

View full text Add to dashboard Cite

The exploration of the rational design and synthesis of unique and robust architectured electrodes for the high capacitance, rate capability, and stability of supercapacitors is crucial to the future of energy storage technology. Herein, an in situ synthesis of multilayered titanium carbide MXene tightly caging within a 3 D conducting tangled polypyrrole (PPy) nanowire (NW) network is proposed as an effective strategy to prevent the aggregation of MXene, profoundly enhancing the electrochemical performance of the supercapacitor. Owing to the beneficial effects of an ideal 3 D interconnected porous structure and high electrical conductivity, the obtained electrode exhibits fast charge and ion transport kinetics as well as full usage of active material. As expected, the 3 D Ti3C2Tx@PPY NW exhibits a specific capacitance five times higher than that of pristine MXene (610 F g−1), a good rate capability up to a current density of 25 A g−1, and excellent stability with 100 % retention after 14 000 cycles at 4 A g−1, outperforming the known state‐of‐the‐art MXene‐based supercapacitor. Our work provides a facile method for enhancing the performance of MXene‐based energy storage devices.

show abstract

Section: Resultssupporting

confidence: 61%

Intertwined Titanium Carbide MXene within a 3 D Tangled Polypyrrole Nanowires Matrix for Enhanced Supercapacitor Performances

Tran

Hong

et al. 2018

Chemistry A European J

View full text Add to dashboard Cite

show abstract

“…But the results were quiet opposite the conductivity increases and the capacitance decreases by increasing EG in the network. This may be due to the partial agglomeration of graphene sheet or the thickness which may alter the conductivity and effect the capacitance of our prepared EDLCs [40][41][42][43].…”

Section: Resultsmentioning

confidence: 99%

Preparation of highly expanded graphene with large surface area and its additional conductive effect for EDLC performance

Ullah

Kim

Yang

et al. 2015

J Mater Sci: Mater Electron

View full text Add to dashboard Cite

Expanded graphene (EG) has been produced using fast oxidation/intercalation process. The as prepared EG were then used as conductive additive to study the electrochemical properties of activated carbon based electric double layered supercapacitors (EDLCs). The physiochemical properties of EG were studied using scanning electron microscopy, Raman spectroscopic techniques, atomic force microscopy and energy dispersive X-ray analysis. The electrochemical properties were studied using charge/discharge cyclic voltammetry and electrochemical impedance spectroscopy. All the electrochemical tests were carried out in 1 M, TEA BF 4 in acetonitrile as a suitable electrolyte for our AC based supercapacitors. Electrochemical test reveals that EG greatly affect the conductivity of the ions through the AC/EG interface. The specific capacitance remains the same for smaller values of EG in the composites electrodes. These results also evident the optimum loading of graphene in the future graphene based EDLCs.

show abstract

“…To further improve the performance (especially the cycle stability), GO/RGO-PPy composite have been developed as the electrode materials [200][201][202][203][204]. A composite of PPy nanowires and GO nanosheets is fabricated as the electrode and yields a high specific capacitance of 633 F g −1 at a current density of 1 A g −1 , which is much larger than that of each individual component [200].…”

Section: Composites Of Go/rgo and Conducting Polymersmentioning

confidence: 99%

“…To solve the problem of poor solubility in water and little anionic characteristics for RGO, Park et al [204] reported a composite of PPy[RGO-PSS] via the PSS (polystyrenesulfonate) as the bridge between PPy and RGO to facilitate charge transfer, as illustrated in Fig. 5.22.…”

Section: Composites Of Go/rgo and Conducting Polymersmentioning

confidence: 99%

Application of GO in Energy Conversion and Storage

Zhao

Liu

2014

SpringerBriefs in Physics

View full text Add to dashboard Cite

The increasing depletion of fossil fuel inspires the demand for renewable energy and energy-efficient devices. GO-based materials emerge in applications of energy storage and conversion with superior advantages. Especially, the composition of GO with specified materials not only retains the inherent characteristics of GO but also induces various characters for improving the performance in energy conversion and storage. Due to the large surface area and ample oxygen containing functional groups, GO can bind many active materials or catalysts for hydrogen storage and generation. Moreover, the functional groups enable GO to further couple with other species and thus form various porous or hierarchical architectures as electrodes, electrolyte or current collector in the lithium batteries and supercapacitors.

show abstract

Kinetically enhanced pseudocapacitance of conducting polymer doped with reduced graphene oxide through a miscible electron transfer interface

Cited by 22 publications

References 33 publications

Intertwined Titanium Carbide MXene within a 3 D Tangled Polypyrrole Nanowires Matrix for Enhanced Supercapacitor Performances

Intertwined Titanium Carbide MXene within a 3 D Tangled Polypyrrole Nanowires Matrix for Enhanced Supercapacitor Performances

Preparation of highly expanded graphene with large surface area and its additional conductive effect for EDLC performance

Application of GO in Energy Conversion and Storage

Contact Info

Product

Resources

About