Nickel foam based polypyrrole–Ag composite film: a new route toward stable electrodes for supercapacitors

Wei, Jiatong; Xing, Guozhong; Gao, Li; Suo, Hui; He, X. Q.; Zhao, Chun; Li, Sean; Xing, Shuangxi

doi:10.1039/c2nj40590c

Cited by 62 publications

(34 citation statements)

References 36 publications

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“…For constructing supercapacitor electrodes, these conducting polymer materials are commonly used since they could supply pseudocapacitors with superior electrochemical performance and high capacitance based on the redox reaction among the electrolyte and the electrode surface. 23 Patil et al synthesized PPy/poly(acrylic acid) (PAA)/Ag nanocomposite by chemical polymerization method and obtained highest specific capacitance of 226 F/g at 10 mV/s scan rate. [12][13][14] Graphene has been shown to display outstanding characteristic in numerous applications for example dye-sensitized solar cell, 15 sensors, 16 and supercapacitors.…”

Section: Introductionmentioning

confidence: 99%

Silver nanoparticles decorated polypyrrole/graphene nanocomposite: A potential candidate for next‐generation supercapacitor electrode material

Dhibar

Das

2017

J of Applied Polymer Sci

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In the present study, we report a simple method to synthesize silver (Ag)-polypyrrole (PPy)/graphene (Gr) nanocomposite as efficient electrode materials for supercapacitor application. The probable interaction between Ag nanoparticles with both PPy and Gr were characterized by FTIR, UV-visible, and Raman spectroscopies. The morphological analysis confirmed that the Gr sheets are uniformly coated by PPy and in the coated Gr sheets there is the presence of Ag nanoparticles. The Ag-PPy/Gr nanocomposite achieved the highest specific capacitance of 472 F/g at a 0.5 A/g current density. Better energy and power density also obtained for the nanocomposite. The presence of both Ag nanoparticles and Gr is the main reason for the enhancement of the electrochemical properties of the nanocomposite. Based on the superior electrochemical properties, the nanocomposite can be used for nextgeneration supercapacitor electrode material.

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Section: Introductionmentioning

confidence: 99%

Silver nanoparticles decorated polypyrrole/graphene nanocomposite: A potential candidate for next‐generation supercapacitor electrode material

Dhibar

Das

2017

J of Applied Polymer Sci

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“…Active materials are the most crucial factor in governing the electrochemical performance for supercapacitors. Generally, the active materials have three kinds including carbon materials [4,5], conducting polymers [6,7], and transition metal oxides [8,9]. Among all these materials mentioned above, conducting polymers are the most promising materials as they possess redox pseudocapacitance in addition to double-layer capacitance.…”

Section: Introductionmentioning

confidence: 99%

Facile synthesis of polyaniline/NiCo2O4 nanocomposites with enhanced electrochemical properties for supercapacitors

Chen

Zhang

et al. 2015

Ionics

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A b s t r a c t P o l y a n i l i n e / N i C o 2 O 4 nan oco mpos ites (PANI/NiCo 2 O 4 ) with different amounts of NiCo 2 O 4 (5, 8, 10, 15, and 20 wt%) were prepared via in situ chemical oxidation polymerization in the presence of the NiCo 2 O 4 particles, while the NiCo 2 O 4 nanoparticles were synthesized by a modified sol-gel method. The structure and morphology of PANI/NiCo 2 O 4 nanocomposites were characterized by Fourier transform infrared (FT-IR), X-ray diffraction (XRD), and scanning electron microscopy (SEM) techniques, respectively. The electrochemical properties of PANI/NiCo 2 O 4 nanocomposites were investigated by cyclic voltammetry, galvanostatic charge-discharge test, and electrochemical impedance spectroscopy (EIS) in 0.5 mol L −1 H 2 SO 4 electrolyte in three-electrode system. The PANI/10 wt% NiCo 2 O 4 nanocomposites show larger specific capacitance of 439.4 F g −1 at a current density of 5 mA cm −2 and lower resistance compared with the pure PANI. The charge-discharge tests showed that the PANI/NiCo 2 O 4 nanocomposites possessed good cycling stability. It maintained about 66.11 % of the initial capacitance after 1000 cycles at a current density of 5 mA cm −2 . The results indicated that the PANI/NiCo 2 O 4 nanocomposites are a promising material for supercapacitors.

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“…[1][2][3][4][5][6][7][8][9] Amongst these polymers, polypyrrole (PPy) has been widely utilized for enzyme immobilization due to high electrical conductivity, biocompatibility and facile synthesis at low cost in comparison to other polymers. [1][2][3][4][5][6][7][8][9] Amongst these polymers, polypyrrole (PPy) has been widely utilized for enzyme immobilization due to high electrical conductivity, biocompatibility and facile synthesis at low cost in comparison to other polymers.…”

Section: Introductionmentioning

confidence: 99%

Enzyme immobilization and molecular modeling studies on an organic–inorganic polypyrrole–titanium(iv)phosphate nanocomposite

et al. 2015

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In this work we report the synthesis of an electrically conductive polypyrrole-titanium(IV)phosphate (PPy-TiP) nanocomposite using simple, facile in situ chemical oxidative polymerization of polypyrrole (PPy) in the presence of titanium(IV)phosphate (TiP) for immobilization of the yeast alcohol dehydrogenase enzyme. FTIR, FE-SEM and TGA were employed for the characterization of PPy, TiP and the PPy-TiP nanocomposite. YADH was successfully immobilized on the PPy-TiP nanocomposite with a loading efficiency of 69%. The immobilized YADH showed no change in the pH optima (pH 8.0) and there was a broadening of the peak both at acidic as well as in alkaline pH. The optimum temperature of immobilized YADH was increased by 5 1C with almost the same residual activity. Immobilized YADH showed improved thermal stability at 60 1C and retained about 71% activity after 5 h of incubation. Also, the immobilized YADH showed greater reusability and retained 75% activity after 10th successive use. All the results were compared to those of free YADH, immobilized YADH on PPy and immobilized YADH on TiP. The affinity of immobilized YADH for ethanol was decreased as evident from the K m value (223.71 mM) and also there was a decrease in the maximum velocity (201.53 mM min À1 ) as compared to soluble YADH. The improved residual activity, stability and reusability of YADH immobilized on the PPy-TiP nanocomposite make the enzyme more suitable for industry-based applications. Molecular docking was used to query the protein -the newly synthesized chemical entity interactions that help in understanding the affinity in enzyme activity. † Electronic supplementary information (ESI) available: Loading efficiency of varying amounts of YADH added to the nanocomposite, enzyme leakage behavior, the effect of temperature and the effect of pH on the activity of soluble and immobilized YADH. See

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Nickel foam based polypyrrole–Ag composite film: a new route toward stable electrodes for supercapacitors

Cited by 62 publications

References 36 publications

Silver nanoparticles decorated polypyrrole/graphene nanocomposite: A potential candidate for next‐generation supercapacitor electrode material

Silver nanoparticles decorated polypyrrole/graphene nanocomposite: A potential candidate for next‐generation supercapacitor electrode material

Facile synthesis of polyaniline/NiCo2O4 nanocomposites with enhanced electrochemical properties for supercapacitors

Enzyme immobilization and molecular modeling studies on an organic–inorganic polypyrrole–titanium(iv)phosphate nanocomposite

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