graphite oxide polypyrrole composite electrodes for

Graphite oxide/polypyrrole composite electrodes for

Fabrication and characterization of high energy density supercapacitor based on graphite oxide/polypyrrole (GO/PPy) composites is reported. Improvement in charge storage has been obtained by exfoliation of graphite oxide sheets via intercalation of polypyrrole. The formation of composite has been shown by the analysis of X-ray diffraction, Raman spectroscopy, X-ray photoelectron

(PDF) Exfoliated graphite–ruthenium oxide composite

The high fre- for electrodes with different loadings of ruthenium oxide are shown quency region (104 –100 Hz) has a slope of ∼zero, whereas a slope of in Fig. 2. The Nyquist plot shows a very small and incomplete semi- 0.35 is observed in the mid-frequency region (100–1 Hz).

Reduced graphene oxide/Polypyrrole/PEDOT

2015/8/10Moderately reduced graphene oxide/polypyrrole/PEDOT composite films have been fabricated via a three-step process. Graphene oxide/polypyrrole composites were first composed by in-situ polymerization. Uniform thin films of graphene oxide/polyryrrole were then deposited on transparent conductive electrodes and annealed at 300 C to produce moderately reduced graphene oxide/polypyrrole composite

Graphite oxide/polypyrrole composite electrodes for

Fabrication and characterization of high energy density supercapacitor based on graphite oxide/polypyrrole (GO/PPy) composites is reported. Improvement in charge storage has been obtained by exfoliation of graphite oxide sheets via intercalation of polypyrrole. The formation of composite has been shown by the analysis of X-ray diffraction, Raman spectroscopy, X-ray photoelectron

Electrodeposition of Polypyrrole and Reduced Graphene

2017/4/4Abstract A nanocomposite comprising of polypyrrole and reduced graphene oxide was electrodeposited onto a carbon bundle fibre (CBF) through a two-step approach (CBF/PPy-rGO-2). The CBF/PPy-rGO-2 had a highly porous structure compared to a nanocomposite of polypyrrole and reduced graphene oxide that was electrodeposited onto a CBF in a one-step approach (CBF/PPy

Functionalized graphene oxide–polypyrrole–chitosan

Functionalized graphene oxide (fGO) was synthesized and subsequently used for synthesis of nanocomposite with polypyrrole (PPy) and chitosan (CS) to give fGO–PPy–CS nanocomposites. Screen-printed carbon electrodes were then modified with these 2 O 2

Graphite oxide/polypyrrole composite electrodes for

Fabrication and characterization of high energy density supercapacitor based on graphite oxide/polypyrrole (GO/PPy) composites is reported. Improvement in charge storage has been obtained by exfoliation of graphite oxide sheets via intercalation of polypyrrole. The formation of composite has been shown by the analysis of X-ray diffraction, Raman spectroscopy, X-ray photoelectron

Porous Polypyrrole/Graphene Oxide Functionalized

2019/11/29Porous Polypyrrole/Graphene Oxide Functionalized with Carboxyl Composite for Electrochemical Sensor of Trace Cadmium (II) Yu Song 1,2, Chao Bian 2, Jingfang Hu 1, Yang Li 2, Jianhua Tong 2, Jizhou Sun 2, Guowei Gao 1,3 and Shanhong Xia 2,3

Conversion of pencil graphite to graphene/polypyrrole

T1 - Conversion of pencil graphite to graphene/polypyrrole nanofiber composite electrodes and its doping effect on the supercapacitive properties AU - Sudhakar, Y. N. AU - Vindyashree, AU - Smitha, Vidya AU - Prashanthi, AU - Poornesh, P. AU - Ashok, R.

Graphene Oxide Modified Electrodes for Dopamine Sensing

A reduced graphene oxide- (RGO-) polypyrrole composite electrode was developed by Fritea et al. for sensing of catechol and dopamine []. They reported that their developed electrode could have promising applications in the miniaturization of amperometric biosensors for in vivo measurements of low level of neurotransmitters.

Boosting the electrochemical capacitive properties of polypyrrole using carboxylated graphene oxide

We report a new dopant, carboxylated graphene oxide (GO–COOH), to boost the electrochemical capacitive properties of polypyrrole (PPy). Herein, PPy/GO–COOH composite electrodes are fabricated via a facile one-pot electrochemical polym

A Soft Template Method to Graphene Oxide Nanosheet/Polypyrrole

A Soft Template Method to Graphene Oxide Nanosheet/Polypyrrole Nanofibers Hybrid as Supercapacitor Electrode Material Weitong Xu, Xiwen Yang, Ke Jiang, Li Li Zhang 2, b, Lijuan Luo, Xiaoning Tian 1,a* 1 Department of Chemical Engineering, Ningbo University

Preparation of a Polypyrrole/Graphene Oxide Composite Electrode

Preparation of a Polypyrrole/Graphene Oxide Composite Electrode by Electrochemical Codeposition for Capacitor Deionization Juanqin Xue,* Qixin Sun, Yujie Zhang,* Weibo Mao, Fagen Li, and Chengxian Yin Cite This: ACS Omega 2020, 5, 10995−11004 Read

Facile Co

A facile co-electrodeposition method has been developed to fabricate reduced graphene oxide/polypyrrole (rGO/PPy) composite films, with sodium dodecyl benzene sulfonate as both a surfactant and supporting electrolyte in the precursor solution. The introduction of rGO into the PPy films forms porous structure and enhances the conductivity across the film, leading to superior

Graphene Oxide Modified Electrodes for Dopamine Sensing

A reduced graphene oxide- (RGO-) polypyrrole composite electrode was developed by Fritea et al. for sensing of catechol and dopamine []. They reported that their developed electrode could have promising applications in the miniaturization of amperometric biosensors for in vivo measurements of low level of neurotransmitters.

Facile Co

A facile co-electrodeposition method has been developed to fabricate reduced graphene oxide/polypyrrole (rGO/PPy) composite films, with sodium dodecyl benzene sulfonate as both a surfactant and supporting electrolyte in the precursor solution. Abstract: In this paper, a hierarchical NiCo 2 S 4 polypyrrole core–shell heterostructure nanotube array on Ni foam (NiCo 2 S 4 PPy/NF)

Preparation of a Polypyrrole/Graphene Oxide Composite

In this paper, a polypyrrole/graphene oxide (PPy/GO) composite electrode, applied to the capacitive deionization process for removing heavy metal ions, was prepared by one-step electrochemical codeposition. The PPy/GO composite electrode has a dense sheet structure, and PPy is spherical and uniformly distributed on the surface of GO sheets. The experimental results show that the PPy/GO

Polypyrrole composite electrodes in an all

article{osti_220877, title = {Polypyrrole composite electrodes in an all-polymer battery system}, author = {Killian, J G and Coffey, B M and Gao, F and Poehler, T O and Searson, P C}, abstractNote = {The authors have fabricated an all-polymer battery utilizing the redox properties of electrically conducting polymers for the anode and cathode in conjunction with an ionic conducting polymer gel

Graphite oxide/polypyrrole composite electrodes for

Fabrication and characterization of high energy density supercapacitor based on graphite oxide/polypyrrole (GO/PPy) composites is reported. Improvement in charge storage has been obtained by exfoliation of graphite oxide sheets via intercalation of polypyrrole. The formation of composite has been shown by the analysis of X-ray diffraction, Raman spectroscopy, X-ray photoelectron

Effects of Graphene Oxide on the Conductivity and Capacitance of Polypyrrole

polypyrrole for use in supercapacitors, the construction of carbon materials and polypyrrole composites may be a promising strategy to obtain high-performance electrodes. Graphene oxide, as a kind of carbon material, has not only a high specific surface area and

Graphite oxide/polypyrrole composite electrodes for

Fabrication and characterization of high energy density supercapacitor based on graphite oxide/polypyrrole (GO/PPy) composites is reported. Improvement in charge storage has been obtained by exfoliation of graphite oxide sheets via intercalation of polypyrrole. The formation of composite has been shown by the analysis of X-ray diffraction, Raman spectroscopy, X-ray photoelectron

Fabrication of Polypyrrole/Graphene Oxide Composite

2012/8/22In this paper, we report on the simple, reliable synthesis of polypyrrole (PPy)/graphene oxide (GO) composite nanosheets by using sacial-template polymerization method. Herein, MnO2 nanoslices were chosen as a sacial-template to deposit PPy, which served as the oxidant as well. During the polymerization of pyrrole on surface of GO nanosheets, MnO2 component was consumed

Facile Co

A facile co-electrodeposition method has been developed to fabricate reduced graphene oxide/polypyrrole (rGO/PPy) composite films, with sodium dodecyl benzene sulfonate as both a surfactant and supporting electrolyte in the precursor solution. Abstract: In this paper, a hierarchical NiCo 2 S 4 polypyrrole core–shell heterostructure nanotube array on Ni foam (NiCo 2 S 4 PPy/NF)

Graphite oxide/polypyrrole composite electrodes for

Fabrication and characterization of high energy density supercapacitor based on graphite oxide/polypyrrole (GO/PPy) composites is reported. Improvement in charge storage has been obtained by exfoliation of graphite oxide sheets via intercalation of polypyrrole. The formation of composite has been shown by the analysis of X-ray diffraction, Raman spectroscopy, X-ray photoelectron

Graphite oxide/polypyrrole composite electrodes for

Fabrication and characterization of high energy density supercapacitor based on graphite oxide/polypyrrole (GO/PPy) composites is reported. Improvement in charge storage has been obtained by exfoliation of graphite oxide sheets via intercalation of polypyrrole. The formation of composite has been shown by the analysis of X-ray diffraction, Raman spectroscopy, X-ray photoelectron

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