Direct growth of nickel cobalt layered double hydroxide on nickel foam via redox reaction between nitrate ion and ethanol for hybrid supercapacitors

Nguyen, Thi Toan; Mohapatra, Debananda; Kumar, Deivasigamani Ranjith; Baynosa, Marjorie Lara; Sahoo, Sumanta; Lee, Jintae; Shim, Jae‐Jin

doi:10.1016/j.electacta.2020.137226

Cited by 65 publications

(30 citation statements)

References 55 publications

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“…Furthermore, the relationship between the redox current and sweep rate is also important. The metal hydroxide mechanism in aqueous KOH electrolyte can be expressed by the following redox equations of the electrode during the CV tests [ 55 , 56 , 57 ]:

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Section: Resultsmentioning

confidence: 99%

Electrodeposition of CoxNiVyOz Ternary Nanopetals on Bare and rGO-Coated Nickel Foam for High-Performance Supercapacitor Application

et al. 2022

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We report a simple strategy to grow a novel cobalt nickel vanadium oxide (CoxNiVyOz) nanocomposite on bare and reduced-graphene-oxide (rGO)-coated nickel foam (Ni foam) substrates. In this way, the synthesized graphene oxide is coated on Ni foam, and reduced electrochemically with a negative voltage to prepare a more conductive rGO-coated Ni foam substrate. The fabricated electrodes were characterized with a field-emission scanning electron microscope (FESEM), energy-dispersive X-ray spectra (EDX), X-ray photoelectron spectra (XPS), and Fourier-transform infrared (FTIR) spectra. The electrochemical performance of these CoxNiVyOz-based electrode materials deposited on rGO-coated Ni foam substrate exhibited superior specific capacitance 701.08 F/g, which is more than twice that of a sample coated on bare Ni foam (300.31 F/g) under the same experimental conditions at current density 2 A/g. Our work highlights the effect of covering the Ni foam surface with a rGO film to expedite the specific capacity of the supercapacitors. Despite the slightly decreased stability of a CoxNiVyOz-based electrode coated on a Ni foam@rGO substrate, the facile synthesis, large specific capacitance, and preservation of 92% of the initial capacitance, even after running 5500 cyclic voltammetric (CV) scans, indicate that the CoxNiVyOz-based electrode is a promising candidate for high-performance energy-storage devices.

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…”

Section: Resultsmentioning

confidence: 99%

Electrodeposition of CoxNiVyOz Ternary Nanopetals on Bare and rGO-Coated Nickel Foam for High-Performance Supercapacitor Application

et al. 2022

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“…Due to the scan rate-dependent behavior, the portion of capacity from a diffusion-controlled process steadily dropped with a rising scan rate. An identical process was reported in the additional investigations 48,49 A hybrid device was constructed, employing commercial AC as the negative electrode, and was evaluated in an aqueous 6 M KOH solution in order to assess the actual capability of the LMNS/M2 composite electrode. The charge was balanced between both electrodes using the mass balance equation (eqn (1)).…”

Section: Electrochemical Performancementioning

confidence: 99%

Li₂Mn_0.8Ni_0.2SiO₄/MnO₂ nanocomposite for high-performance supercapacitor applications

et al. 2023

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“…have also been successively developed over the years. [34][35][36][37][38][39][40][41][42] MXenes are the new addition in this rapidly growing family of pseudocapacitive/battery-type materials. [43][44][45][46][47][48] Fig.…”

Section: Introductionmentioning

confidence: 99%

Advances in pseudocapacitive and battery-like electrode materials for high performance supercapacitors

et al. 2022

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Direct growth of nickel cobalt layered double hydroxide on nickel foam via redox reaction between nitrate ion and ethanol for hybrid supercapacitors

Cited by 65 publications

References 55 publications

Electrodeposition of CoxNiVyOz Ternary Nanopetals on Bare and rGO-Coated Nickel Foam for High-Performance Supercapacitor Application

Electrodeposition of CoxNiVyOz Ternary Nanopetals on Bare and rGO-Coated Nickel Foam for High-Performance Supercapacitor Application

Li₂Mn_0.8Ni_0.2SiO₄/MnO₂ nanocomposite for high-performance supercapacitor applications

Advances in pseudocapacitive and battery-like electrode materials for high performance supercapacitors

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Direct growth of nickel cobalt layered double hydroxide on nickel foam via redox reaction between nitrate ion and ethanol for hybrid supercapacitors

Cited by 65 publications

References 55 publications

Electrodeposition of CoxNiVyOz Ternary Nanopetals on Bare and rGO-Coated Nickel Foam for High-Performance Supercapacitor Application

Electrodeposition of CoxNiVyOz Ternary Nanopetals on Bare and rGO-Coated Nickel Foam for High-Performance Supercapacitor Application

Li2Mn0.8Ni0.2SiO4/MnO2 nanocomposite for high-performance supercapacitor applications

Advances in pseudocapacitive and battery-like electrode materials for high performance supercapacitors

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Li₂Mn_0.8Ni_0.2SiO₄/MnO₂ nanocomposite for high-performance supercapacitor applications