MOF-derived porous NiO nanoparticle architecture for high performance supercapacitors

Han, Yan; Zhang, Shu; Shen, Na; Li, Dejun; Li, Xifei

doi:10.1016/j.matlet.2016.09.051

Cited by 112 publications

(30 citation statements)

References 17 publications

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“…The extrapolation of the linear part of the curves to zero absorption point (α = 0) indicates the band gap energy (E g ). 35 The band gap energies obtained are 1.30, 1.44, and 1.40 eV for 1:1/GO, 1:2/GO, and 2:1/GO, respectively. It was reported that the band gap energy of pure ZnO and NiO are 3.07 and 3.4 eV, respectively.…”

Section: Resultsmentioning

confidence: 88%

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Conjugated NiO‐ZnO/GO nanocomposite powder for applications in supercapacitor electrodes material

et al. 2020

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Summary The nanocomposite of NiO‐ZnO/graphene oxide (GO) was synthesized for applications in supercapacitor electrodes material. GO was produced using the modified Hummers' method, and the nanocomposite of NiO‐ZnO/GO was synthesized using the co‐precipitation method. Thin films of nanocomposite powder were deposited on quartzite (glass) and fluorine‐doped tin oxide substrates by a drop casting technique. X‐ray diffraction revealed the crystallographic information of NiO‐ZnO/GO nanocomposites. The surface morphology and elemental composition were studied using a scanning electron microscopy and energy‐dispersive X‐ray spectroscopy, respectively. The electrochemical properties were examined using cyclic voltammetry in a 1.0 M solution of Na2SO4 electrolyte with a three‐electrode system. Moreover, the NiO‐ZnO/GO binary metal oxides nanocomposite based electrodes fabricated for supercapacitor delivered a high specific capacitance of 1690 F g−1 for 1:1/GO sample at a scan rate of 10 mV s−1 and has excellent conductivity due to reduced band gap energy range of 1.52‐1.79 eV and with electrodes resistance of 0.02 Ω. The absence of semicircle in the Nyquist plot denotes low charge transfer resistance of the electrodes. The highest energy densities obtained for 1:1/GO and 2:1/GO are 192 and 148 Wh kg−1, respectively, while the highest power density obtained for 1:1/GO and 2:1/GO are 8.46 and 7.42 W kg−1, respectively. Our study paves way for a facile, affordable, nontoxic, and fast way to synthesis binary transition metal oxides/GO‐based electrodes material for high‐performance supercapacitor.

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Section: Resultsmentioning

confidence: 88%

“…Figure shows the graph of ( αhѵ ) 2 vs hѵ . The extrapolation of the linear part of the curves to zero absorption point ( α = 0) indicates the band gap energy ( E g ) . The band gap energies obtained are 1.30, 1.44, and 1.40 eV for 1:1/GO, 1:2/GO, and 2:1/GO, respectively.…”

Section: Resultsmentioning

confidence: 99%

Conjugated NiO‐ZnO/GO nanocomposite powder for applications in supercapacitor electrodes material

et al. 2020

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“…The extent of NPs applications is due to unique and fascinating properties (magnetic, optical, chemical, electronic, mechanical, sensing properties). Metallic nanoparticles (MNPs) significantly vary in many properties from that of their bulk materials such as size, shape, surface effect, electrical and magnetic properties …”

Section: Introductionmentioning

confidence: 99%

Green synthesis and characterizations of Nickel oxide nanoparticles using leaf extract of Rhamnus virgata and their potential biological applications

Iqbal

Abbasi

Mahmood

et al. 2019

Applied Organom Chemis

149

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In the present report, Nickel oxide nanoparticles (NiONPs) were synthesized using Rhamnus virgata (Roxb.) (Family: Rhamnaceae) as a potential stabilizing, reducing and chelating agent. The formation, morphology, structure and other physicochemical properties of resulting NiONPs were characterized by Ultra violet spectroscopy, X-ray diffraction (XRD), Fourier Transform Infrared analysis (FTIR), Scanning electron microscopy (SEM), Energy-dispersivespectroscopy (EDS), Transmission electron microscopy (TEM), Raman spectroscopy and dynamic light scattering (DLS). Detailed in vitro biological activities revealed significant therapeutic potential for NiONPs. The antimicrobial efficacy of biogenic NiONPs was demonstrated against five different gram positive and gram negative bacterial strains. Klebsiella pneumoniae and Pseudomonas aeruginosa (MIC: 125 μg/mL) were found to be the least susceptible and Bacillus subtilis (MIC: 31.25 μg/mL) was found to be the most susceptible strain to NiONPs. Biogenic NiONPs were reported to be highly potent against HepG2 cells (IC 50 : 29.68 μg/ml). Moderate antileishmanial activity against Leishmania tropica (KMH 23 ) promastigotes (IC 50 : 10.62 μg/ml) and amastigotes (IC 50 : 27.58 μg/ml) cultures are reported. The cytotoxic activity was studied using brine shrimps and their IC 50 value was recorded as 43.73 μg/ml. For toxicological assessment, NiONPs were found compatible towards human RBCs (IC 50 : > 200 μg/ml) and macrophages (IC 50 : > 200 μg/ml), deeming particles safe for various applications in nanomedicines. Moderate antioxidant activities: total antioxidant capacity (TAC) (51.43%), 2,2-diphenyl-1-picrylhydrazyl (DPPH) activity (70.36%) and total reducing power (TRP) (45%) are reported for NiONPs. In addition, protein kinase and alpha amylase inhibition assays were also performed. Our results concluded that Rhamnus virgata synthesized NiONPs could find important biomedical applications with low cytotoxicity to normal cells.

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“…This ingenious two step calcination treatment prevent the growth of iron oxide nanoparticles due to the existence of carbon species during the first step, as well as provide more pore inside the spindle‐like Fe 2 O 3 due to the removal of carbon materials during the second step, which can act as buffer space for volume changes during Li + insertion/extraction processes, thus delivering a high reversible capacity of 772 mAh g −1 at 0.2 C after 50 cycles. This simple calcination method can be also applied to synthesis of other metal oxides, such as cobalt oxides, zinc oxides, nickel oxides, manganese oxides, copper oxides, titanium oxide, and so on.…”

Section: Single Mof Derivativesmentioning

confidence: 99%

Rational Microstructure Design on Metal–Organic Framework Composites for Better Electrochemical Performances: Design Principle, Synthetic Strategy, and Promotion Mechanism

et al. 2020

Small Methods

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Metal–organic frameworks (MOFs) simultaneously containing metal ions and organic ligands have recently shown great potential for application in energy storage and conversion fields due to their controllable conversion into carbon materials or various metal species, which often exhibit superior electrochemical performance as electrode materials for energy storage and conversion. Nevertheless, the electrochemical energy storage performance of MOF derivatives can still be further enhanced through building composites with other functional materials. It is of great significance in developing new strategies of fabricating MOF composites to achieve electrode materials with improved charge transfer and electrochemical redox reaction kinetics. In this review, the novel design and strategies of MOF composites with various functional components are focused on, including carbon‐based materials (carbon nanotubes, graphene, etc.), metal oxides, 3D conductive substrates, polymeric materials, and the second MOFs and metal salts, especially their derivatives for energy storage and conversion fields. The key factors for controllable synthesis of various MOF composites and electrochemical performance enhancement mechanisms are discussed in detail. It is expected that this review will provide new inspiration for the development of MOF derivatives for energy storage and conversion.

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MOF-derived porous NiO nanoparticle architecture for high performance supercapacitors

Cited by 112 publications

References 17 publications

Conjugated NiO‐ZnO/GO nanocomposite powder for applications in supercapacitor electrodes material

Conjugated NiO‐ZnO/GO nanocomposite powder for applications in supercapacitor electrodes material

Green synthesis and characterizations of Nickel oxide nanoparticles using leaf extract of Rhamnus virgata and their potential biological applications

Rational Microstructure Design on Metal–Organic Framework Composites for Better Electrochemical Performances: Design Principle, Synthetic Strategy, and Promotion Mechanism

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