Synthesis of Ni3V2O8@graphene oxide nanocomposite as an efficient electrode material for supercapacitor applications

Thiagarajan, Kannadasan; Theerthagiri, Jayaraman; Senthil, Raja Arumugam; Arunachalam, Prabhakarn; Madhavan, Jagannathan; Ghanem, Mohamed A.

doi:10.1007/s10008-017-3788-8

Cited by 105 publications

(41 citation statements)

References 34 publications

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“…To fabricate electrode, the slurry of thermally annealed ZnO@NiO nanomaterial, acetylene black, and polyvinylidene (PVDF) was prepared in 8:1:1 in organic solvent of N‐methyl pyrrolidinone following reported methodologies . They as prepared slurry was then consistently pasted onto the porous Ni foam which was then treated at 60°C for 10 h under vacuum (Figure ).…”

Section: Methodsmentioning

confidence: 62%

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: Methodsmentioning

confidence: 62%

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

et al. 2020

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“…The semicircles in higher frequency region represent the constant phase element (CPE) and charge‐transfer resistance ( R ct ) at the CE/electrolyte interface which resembles to the frequency requirement of the ion diffusion/transport in the electrolyte . A sharp Nernst diffusion plot in lower frequency range related to the Warburg diffusion impedance represents good capacitance behavior of the electrode materials, which signify the fast diffusion of ions towards the electrode . The values of R ct and R s reflect the bulk resistance ( R b ) of the electrode materials.…”

Section: Resultsmentioning

confidence: 95%

“…We carried out EIS measurements to evaluate the electrical conduction for different mass ratio of Co 3 O 4 /CNTs electrode in Fig.2e. EIS related with pseudocapacitance ( C p ), double‐layer capacitance ( C dl ), charge transfer resistance ( R ct ), and the serious resistance ( R s ) . The intersection of the high frequency intercept on the real axis (Z’‐axis) represents the series resistance ( R s ), including the contact resistance of the electrode/electrolyte interface and electrolyte resistance.…”

Section: Resultsmentioning

confidence: 99%

Facile Construction of Sandwich‐like Co₃O₄/CNTs Complex for High‐performance Asymmetric Supercapacitors

et al. 2019

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Sandwich-like, hetero-structured Co 3 O 4 /CNTs were prepared by a simple hydrothermal and self-assembly process. The CNTs insert into layered Co 3 O 4 sheets and ensure fast electron transfer between the Co 3 O 4 sheets for a faradaic reaction close to the electroactive sites and effectively inhibit the deformation and collapse of the pseudocapacitance material in the cyclic process. The well-ordered complex delivers a specific capaci-tance of 562.22 F⋅g À 1 at a current density of 1 A⋅g À 1 ; and in a three-electrode system with regard to hold 96% of the primitive specific capacitance after 5000 cycles. An asymmetric supercapacitor was assembled with Co 3 O 4 /CNTs as positive electrode and activated carbon (AC) as negative electrode, the device shows a high energy density of 157.5 W⋅h⋅kg À 1 at a power density of 2520 W⋅kg À 1 .

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“…The cumulative resistance of electrode material, electrolyte and electrolyte/electrode interface comes under R s . 49,50,54,56 Impedance effect can be subdivided further into high-frequency regions (HFR) and lowfrequency regions (LFR). In HFR, the intercept of the semicircle on the real axis denotes R s and the width of the semicircle graph is representative of R ct .…”

Section: Uv-vis Analysis Of Bio-synthesized Nps Has Been Shown Inmentioning

confidence: 99%

“…In HFR, the intercept of the semicircle on the real axis denotes R s and the width of the semicircle graph is representative of R ct . 49,50,55,56 Whereas in LFR, if the slope of impedance on the real axis is closer to Warburg angle of 45 then that exhibits low Warburg impedance and improved ion transfer or diffusion from the electrolyte to electrode showing high capacitive behavior. 51 It has been observed in present investigation that the width of semicircle is very small at voltage 0.6 V, and estimated R s and R ct values were 0.2 U and 5 U respectively.…”

Section: Uv-vis Analysis Of Bio-synthesized Nps Has Been Shown Inmentioning

confidence: 99%

Organic template-based ZnO embedded Mn₃O₄ nanoparticles: synthesis and evaluation of their electrochemical properties towards clean energy generation

et al. 2020

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To deal with fossil fuel depletion and the rise in global temperatures caused by fossil fuels, cheap and abundant materials are required, in order to fulfill energy demand by developing high-performance fuel cells and electrocatalysts. In this work, a natural organic agent has been used to synthesize nanostructured ZnO/Mn 3 O 4 with high surface area and enhanced electrocatalytic performance. Upon preannealing treatment, mixed metal oxide precipitates are formed due to the complex formation between a metal oxide and organic extract. The thermally annealed mixed oxide ZnO/Mn 3 O 4 was characterized by XRD diffractometer, Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM) and energy dispersive X-ray spectroscopy (EDX). Gas chromatography-mass spectrometry (GC-MS) identified methyldecylamine as a major stabilizing agent of the synthesized nanomaterial. Using a Tauc plot, the calculated band energy for the synthesized ZnO/Mn 3 O 4 mixed metal oxide was 1.65 eV.Moreover, we have demonstrated the effects of incorporated organic compounds on the surface chemistry, morphology and electrochemical behavior of ZnO/Mn 3 O 4 . The phyto-functionalized ZnO/ Mn 3 O 4 was deposited on Ni-foam for electrocatalytic studies. The fabricated electrode revealed good performance with low over-potential and Tafel slope, suggesting it to be suitable as a potential catalyst for water splitting application, in particular for the oxygen evolution reaction (OER). The overall findings of the current study provide a cost-effective and efficient organic template for functionalization and sustainable fabrication of ZnO/Mn 3 O 4 nanomaterial for application as an electrocatalyst.

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Synthesis of Ni3V2O8@graphene oxide nanocomposite as an efficient electrode material for supercapacitor applications

Cited by 105 publications

References 34 publications

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

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

Facile Construction of Sandwich‐like Co₃O₄/CNTs Complex for High‐performance Asymmetric Supercapacitors

Organic template-based ZnO embedded Mn₃O₄ nanoparticles: synthesis and evaluation of their electrochemical properties towards clean energy generation

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Synthesis of Ni3V2O8@graphene oxide nanocomposite as an efficient electrode material for supercapacitor applications

Cited by 105 publications

References 34 publications

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

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

Facile Construction of Sandwich‐like Co3O4/CNTs Complex for High‐performance Asymmetric Supercapacitors

Organic template-based ZnO embedded Mn3O4 nanoparticles: synthesis and evaluation of their electrochemical properties towards clean energy generation

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Product

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Facile Construction of Sandwich‐like Co₃O₄/CNTs Complex for High‐performance Asymmetric Supercapacitors

Organic template-based ZnO embedded Mn₃O₄ nanoparticles: synthesis and evaluation of their electrochemical properties towards clean energy generation