Facile hydrothermal synthesis of NiO/rGO nanocomposite electrodes for supercapacitor and nonenzymatic glucose biosensing application

Pore, O. C.; Fulari, A. V.; Park, H. H.; Shejwal, Rajendra V.; Lohar, G. M.

doi:10.1007/s10934-022-01313-2

Cited by 13 publications

(16 citation statements)

References 51 publications

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“…The Hummer's method was modified to synthesize GO efficiently and a chemical reduction method was applied to obtain rGO. 30 To determine the effects of both foam structure and Nickel derivative, three types of electrode composition were prepared. The standard electrode (rGO) was obtained by mixing rGO and binder PVDF at a ratio of 95:5 (w/w) in acetone.…”

Section: Preparation Of Electrode Materials and Fabrication Of Pscmentioning

confidence: 99%

“…[20][21][22][23][24][25][26] In the literature, the most viable and efficient methods proposed for the preparation of 3D GF and GF-based hybrid structures are hydrothermal, chemical vapor deposition, template, freeze drying, and electrochemical preparation. [27][28][29][30] For instance, it was reported that an Au and rGO-based 3D composite material was coated on a carbon electrode surface by electrochemical deposition. 31 This method formed a 3D structure with an interconnected network having a relatively larger surface area and higher conductivity.…”

Section: Introductionmentioning

confidence: 99%

“…In that procedure, the electrode material was prepared with a hydrothermal method by annealing at 400 C. A specific capacitance of 727.1 F g À1 at 1 mA cm À2 was achieved with stability of over 80% after about 9000 cycles. 30 This current study developed a self-templated foam based on Ni and rGO, and its structural analyses were carried out. The prepared foams in different weight ratios of Ni and rGO were directly grown on the current collector.…”

Section: Introductionmentioning

confidence: 99%

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One‐step preparation of binder‐free nickel‐containing graphene foam electrode for supercapacitors

Siyahjani Gultekin,

Karimi,

Can

et al. 2024

Energy Storage

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In this study, a nickel hydroxide (Ni(OH)2)‐modified reduced graphene oxide (rGO) foam electrode for supercapacitor application is presented. The electrode was prepared without using a binder through a one‐step process with three different ratios (NirGO1, NirGO2, and NirGo3). To compare the supercapacitor performance of the obtained graphene foam electrodes, rGO and rGO:carbon black (CB) standard electrodes with PVDF‐HFP binder were also prepared. All electrodes were then characterized structurally (XPS, EDS, RAMAN, XRD, and FT‐IR) and morphologically (SEM). Structural characterizations demonstrated that the Ni‐containing electrodes were in α‐Ni(OH)2:rGO structure. In addition, NirGO3 exhibited a specific capacitance of 800 F g−1 which is relatively the highest performance between the foam electrodes, while rGO:CB presented a specific capacitance of 900 F g−1. The results demonstrated that with the method proposed for electrode development, it was possible to obtain comparable results with the standard electrode rGO:CB.

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Section: Preparation Of Electrode Materials and Fabrication Of Pscmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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One‐step preparation of binder‐free nickel‐containing graphene foam electrode for supercapacitors

Siyahjani Gultekin,

Karimi,

Can

et al. 2024

Energy Storage

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“…The core-shell hybrid NiO/rGO electrode prepared by electrophoretic deposition method shows a capacitance of 940 F g −1 at a current density of 2 A g −1 [39]. Pore et al reported the achievement of specific capacitance of 727.1 F g −1 at 1 mA cm −2 current density with good cyclic stability of about 80.4% over 9000 cycles for the hydrothermally prepared NiO/rGO electrodes [40].…”

Section: Tmo/carbon-based Compositementioning

confidence: 99%

Review on Transition Metal Oxides and Their Composites for Energy Storage Application

George¹,

Jose²,

Aravind³

2023

Updates on Supercapacitors

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Supercapacitors evolved as a breakthrough to the existing shortages in energy resources because of its enhanced capacitive performance, long-term stability, and high power density. Transition metal oxides (TMOs), a redox active material in energy storage applications, showing high specific capacitance (100–2000 F/g) than the electrical double-layer capacitor (EDLC) material has been reviewed a lot. Among various TMOs, nickel oxide (NiO), tin oxide (SnO2), manganese dioxide (MnO2), tungsten oxide (WO3), vanadium pentoxide (V2O5) are widely used by researchers due to their high theoretical capacitance, low cost, and long cycle life. The limitations of TMO-based electrode material includes low electrical conductivity, ion mobility, and low energy density. It is thus important to develop proper combination of TMO with other transition metals, TMOs, transition metal dichalcogenides (TMDs), conducting polymers (CPs) and carbon-based materials (graphene oxide (GO), activated carbon (AC) and reduced GO (rGO)). This chapter focuses on ongoing development in six TMO-based electrode material (NiO, ZnO, MnO2, SnO2, WO3, V2O5) fabrication for the enhancement of electrochemical performance, their synthesis method and then review about the recent progress in studying the supercapacitor performance of the material. The limitations of each TMOs listed separately, providing new insights for future energy storage applications.

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“…Many studies revealed the excellent properties of NiO/rGO composites, but the crucial of exploiting the synergetic enhancement of both materials is the selection of an appropriate structure/bonding method [23][24][25]. Nowadays, most of the preparations of NiO/rGO composites are generally time-consuming or have complex preparation processes.…”

Section: Introductionmentioning

confidence: 99%

Optimized 3D interconnected foam-like NiO@rGO composite as a binder-free electrode for high-performance asymmetric supercapacitor

Liu,

Shao,

Xue

et al. 2023

Mater. Res. Express

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Bonding of transition metal oxides and highly conductive carbon materials to exploit the synergistic effect of both materials has been proven to be an efficient means to develop high-capacity electrode materials. A unique interconnected foam-like NiO@rGO structure was constructed by loading the NiO nanoparticles onto rGO frameworks as a binder-free supercapacitor electrode via three steps including hydrothermal reaction, electrodeposition and heating treatment. The morphology and crystallinity were tuned by controlling the electrodeposition time and heating temperature, and the electrochemical properties of the NiO@rGO composites were systematically investigated. The optimized NiO@rGO-250 composite showed excellent electrochemical properties (1399 F g-1 at 1 A g-1) and superior cycling stability. Furthermore, an asymmetric supercapacitor using NiO@rGO and active carbon as two electrodes achieved a high specific energy of 40.4 Wh k g-1 at a specific power of 750 W k g-1.

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Facile hydrothermal synthesis of NiO/rGO nanocomposite electrodes for supercapacitor and nonenzymatic glucose biosensing application

Cited by 13 publications

References 51 publications

One‐step preparation of binder‐free nickel‐containing graphene foam electrode for supercapacitors

One‐step preparation of binder‐free nickel‐containing graphene foam electrode for supercapacitors

Review on Transition Metal Oxides and Their Composites for Energy Storage Application

Optimized 3D interconnected foam-like NiO@rGO composite as a binder-free electrode for high-performance asymmetric supercapacitor

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