Carbon Coated MoO 3 Nanowires/Graphene oxide Ternary Nanocomposite for High-Performance Supercapacitors

Shaheen, Wajeeha; Warsi, Muhammad Farooq; Shahid, Muhammad; Khan, Muhammad Azhar; Asghar, M.; Ali, Zahid; Sarfraz, M.; Anwar, Hafeez; Nadeem, Muhammad; Shakir, Imran

doi:10.1016/j.electacta.2016.09.069

Cited by 93 publications

(36 citation statements)

References 47 publications

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“…It is further observed in Figure B that organic stabilized ZnO@NiO has smaller intercept of <0.5 Ω at real axis in the high frequency region so it has smaller R i / R s which is due to nanoporous morphology as well as hydrophilic (oxygen) functional groups of organic species on the surface as revealed by XPS. Moreover, the internal resistance of ZnO@NiO electrodes is smaller than numerous fabricated metal oxides based electrodes . This is strongly attributed to the fact that in the current study pathways for electron transport were not only provided by Zn, and Ni but also the organic stabilizing agent (C 4 H 8 O and C 8 H 19 N) of ZnO@NiO as indicated by XPS (Figure and MS spectra (Figure B).…”

Section: Resultsmentioning

confidence: 62%

“…This was attributed to Zn, O, Ni, and C, present at the surface of electrode as major constituents of active material as shown by XPS in Figure . The battery type behavior is often associated with the most of metal oxides as reported by Duraisamy et al, Zhou et al, and Hussain et al where they described such pseudocapacitance behavior of metal oxides based electrodes.…”

Section: Resultsmentioning

confidence: 77%

“…The redox behavior of fabricated electrode was also illustrated by obvious plateau regions by GCD measurements as shown in Figure B. The presence of redox peaks were indicated pseudocapacitor behavior of ZnO@NiO mainly due to following reaction (M = Zn/Ni)

MO + {OH}^{-} \leftrightarrow MOOH + e^{-}

…”

Section: Resultsmentioning

confidence: 88%

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Effect of NiO on organic framework functionalized ZnO nanoparticles for energy storage application

et al. 2020

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Functionalization of metal oxides nanomaterial by different organic and inorganic species could considerably enhance the electrochemical performance of a supercapacitor. Here, we have synthesized and functionalized ZnO nanoparticles (NPs) via organic compounds of E. cognate and then doped the synthesized nanomaterials by NiO following hydrothermal route involving the bioactive compounds. As synthesized ZnO@NiO was analyzed by field emission-scanning electron microscopy at nanoscale. The organic functional groups were delineated by X-ray photoelectron spectroscopy as well as by Fourier transform infrared spectroscopy. What is more, Tauc plot revealed drastically decreased band gap energy of ZnO@NiO to 2.48 eV resulting in an enhanced electrochemical properties. Therefore, organic framework derived ZnO@NiO nanomaterial was scrutinized as an electrode for supercapacitor by galvanostatic charge-discharge, cyclicvoltammetry and electrochemical impedance spectroscopy. ZnO@NiO electrode demonstrated specific capacitance of 185 Fg −1 by cyclicvoltammetry, proposing its potential towards supercapacitor due to nanoscale particles and incorporated C, O, and N atoms of organic compounds. K E Y W O R D Sbio-template, low band gap energy, nanostructures, stabilizing agents, supercapacitor, zinc oxides: nickel oxide

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Section: Resultsmentioning

confidence: 62%

Section: Resultsmentioning

confidence: 77%

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Effect of NiO on organic framework functionalized ZnO nanoparticles for energy storage application

et al. 2020

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“…Shaheen et al 63 have also overcome the restacking of graphene layers by introducing molybdenum trioxide (MoO 3 ) nanowire, which was coated with a carbon layer. Chen et al 62 introduced carbon black (CB) to overcome restacking of graphene layers.…”

Section: Graphene/other Carbon Material/ Metal Oxidementioning

confidence: 99%

“…The ternary asymmetric supercapacitor was also able to deliver 20 Wh/kg with a power density of 21 kW/kg. Shaheen et al 63 have also overcome the restacking of graphene layers by introducing molybdenum trioxide (MoO 3 ) nanowire, which was coated with a carbon layer. The conductive carbon layer was used to overcome the low conductivity of the MoO 3 nanowire.…”

Section: Graphene/other Carbon Material/ Metal Oxidementioning

confidence: 99%

Graphene-based ternary composites for supercapacitors

2018

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Summary The research on electrode materials for supercapacitor application continues to evolve as the request of high‐energy storage system has increased globally due to the demand for energy consumption. Over the past decades, various types of carbon‐based materials have been employed as electrode materials for high‐performance supercapacitor application. Among them, graphene is 1 of the most widely used carbon‐based materials due to its excellent properties including high surface area and excellent conductivity. To exploit more of its interesting properties, graphene is tailored to produce graphene oxide and reduced graphene oxide to improve the dispersibility in water and easy to be incorporated with other materials to form binary composites or even ternary composites. Nowadays, ternary composites have attracted enormous interest as 2 materials (binary composites) cannot satisfy the requirement of the high‐performance supercapacitor. Thus, many approaches have been employed to fabricate ternary composites by combining 3 different types of electroactive materials for high‐performance supercapacitor application. This review focuses on the supercapacitive performance of graphene‐based ternary composites with different types of active materials, ie, conducting polymers, metal oxide, and other carbon‐based materials.

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