Sprayed bismuth oxide interconnected nanoplate supercapacitor electrode materials

Ambare, R.C.; Shinde, Pritamkumar V.; Nakate, Umesh T.; Lokhande, B. J.; Mane, Rajaram S.

doi:10.1016/j.apsusc.2018.05.090

Cited by 53 publications

(11 citation statements)

References 14 publications

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“…In addition to the stoichiometric phases, non-stoichiometric phases, such as Bi 2 O 2. 33 , are also known [4]. All phases have different crystal structures and various optical, electrical, and mechanical properties [5], which are all important for the practical application of a photocatalyst.…”

Section: Introductionmentioning

confidence: 99%

Bismuth Oxide Faceted Structures as a Photocatalyst Produced Using an Atmospheric Pressure Plasma Jet

Kohler¹,

Siebert²,

Kochanneck³

et al. 2019

Catalysts

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The photocatalyst bismuth oxide, which is active under visual light, was deposited using an atmospheric pressure plasma jet (APPJ). Sixteen different samples were generated under different parameters of the APPJ to investigate their catalytic activity. The prepared samples were characterized using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), laser scanning microscopy (LSM), and UV–vis diffuse reflectance absorption spectroscopy. The measured data, such as average sample thickness, coverage ratio, phase fraction, chemical composition, band gap, and photocatalytic performance were used for comparing the samples. The XRD analysis showed that the deposition process produced a mixed phase of monocline Bi2O3 and tetragonal Bi2O2.33. Using the Rietveld refinement method, phase fractions could be determined and compared with the XPS data. The non-stoichiometric phases were influenced by the introduction of nitrogen to the surface as a result of the deposition process. The band gap calculated from the diffuse absorption spectroscopy shows that Bi2O2.33 with 2.78 eV had a higher band gap compared to the phases with a high proportion of Bi2O3 (2.64 eV). Furthermore, it was shown that the band gap was dependent on the thickness of the sample and oxygen vacancies or loss of oxygen in the surface. All coatings had degraded methyl orange (MO) under irradiation by xenon lamps.

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Section: Introductionmentioning

confidence: 99%

Bismuth Oxide Faceted Structures as a Photocatalyst Produced Using an Atmospheric Pressure Plasma Jet

Kohler¹,

Siebert²,

Kochanneck³

et al. 2019

Catalysts

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“…All the electrodes exhibited a pair of reduction and oxidation peaks in both the anodic and cathodic sweeps, suggesting that Faradaic redox reactions occurred at the electrode‐electrolyte interfaces, indicating pseudocapacitive characteristics. The redox peaks in these samples are attributed to the transitions of Bi 2 O 3 /Bi(OH) 3 and Co 2+ /Co 3+ /Co 4+ as per the following equations 18,36,37 :

{Bi}_{2} O_{3} goodbreak+ {6OH}^{-} ⟷ Bi {(OH)}_{3} goodbreak+ {3O}_{2} goodbreak+ {6e}^{-}

Bi {(OH)}_{3} goodbreak+ {2OH}^{-} ⟷ BiOOH goodbreak+ {2H}_{2} normalO goodbreak+ O_{2} goodbreak+ {2e}^{-}

Co {(OH)}_{2} goodbreak+ {OH}^{-} ⟷ CoOOH goodbreak+ H_{2} normalO goodbreak+ e^{-}

CoOOH goodbreak+ {OH}^{-} ⟷ {CoO}_{2} goodbreak+ H_{2} normalO goodbreak+ e^{-} .

…”

Section: Resultsmentioning

confidence: 99%

“…All CV curves of different electrodes are compared in Figure S5A,B. All the electrodes exhibited a pair of reduction and oxidation peaks in both the anodic and cathodic sweeps, suggesting that Faradaic redox reactions occurred at the electrode-electrolyte interfaces, 18,36,37 :…”

Section: Supercapacitor Propertiesmentioning

confidence: 99%

“…In particular, ternary transition metal‐oxides/hydroxides nanostructured active materials are reported for high‐performance supercapacitors 13‐16 . Among them, bismuth and cobalt‐based oxides/hydroxides materials can be potential candidates for supercapacitors owing to their various properties, chemical stability and broad oxidation states, strong redox behavior in alkali electrolytes, and inexpensive and abundant sources 17,18 . Recently, Teli et al reported that the BiMnO 3 electrode achieved 6000 mFcm −2 areal capacitance at 20 mAcm −2 19 .…”

Section: Introductionmentioning

confidence: 99%

“…[13][14][15][16] Among them, bismuth and cobalt-based oxides/hydroxides materials can be potential candidates for supercapacitors owing to their various properties, chemical stability and broad oxidation states, strong redox behavior in alkali electrolytes, and inexpensive and abundant sources. 17,18 Recently, Teli et al reported that the BiMnO 3 electrode achieved 6000 mFcm À2 areal capacitance at 20 mAcm À2 . 19 William et al fabricated nickel-bismuth oxide battery-type asymmetric supercapacitors, and excellent capacitance of 778 Cg À1 was revealed at 1 Ag À1 with 2000 cycles.…”

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confidence: 99%

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Hybrid nanostructured bismuth‐cobalt oxides/hydroxides binder‐free electrodes fabricated by two‐step electrodeposition for high‐performance supercapacitors

Nguyen

Nakate

Chen

et al. 2022

Intl J of Energy Research

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Herein, a two-step electrodeposition technique is adopted for the binder-free fabrication of nanostructured bilayered active material electrodes to achieve a high-performance supercapacitor with reducing charge-transfer resistance. Hybridnanostructured bismuth-cobalt oxides/hydroxides electrode (Bi 2 O 3 @Co(OH) 2 ) active materials are successfully grown on a 3D nickel foam substrate via versatile electrodeposition. Nanostructured Co(OH) 2 is deposited on Bi 2 O 3 coated nickel foams using different electrolytic concentrations (the comparable concentration ratios of Bi:Co = 1:0.5; 1:1; 1:1.5; 1:2). The prepared Bi 2 O 3 @Co(OH) 2 electrode materials are characterized for structural, morphological, elemental composition, element distribution, and chemical states of atoms properties using standard, sophisticated tools. Cyclic voltammetry is recorded at increasing scan rates, whereas galvanostatic charge-discharge data are measured at different current densities. The optimized electrode with the mole ratio of Bi:Co = 1:1 (denoted as BC-II) revealed a higher areal capacitance than Bi 2 O 3 and Co(OH) 2 electrodes. The optimal BC-II electrode exhibited the highest 947.1 mFcm À2 areal capacitance for current density 2 mA cm À2 in 1.0 M KOH solution using the discharging time. The capacitance stability after 1000 GCD cycles at 10 mA cm À2 is maintained at 99.8% of its original value. The present study demonstrates a simple method for preparing active nanostructured oxide/hydroxide hybrid materials for improved supercapacitors. K E Y W O R D Sbinder-free electrodes, bismuth-cobalt oxides/hydroxides (Bi 2 O 3 @Co(OH) 2 ), electrodeposition, hybrid nanostructures, supercapacitors | INTRODUCTIONRecently, industrial growth has significantly increased energy consumption. 1 Although fossil fuels are the primary source of energy in industrial sectors, they are nonrenewable and release greenhouse gases, such as CO, CO 2 , SO x , and NO x , which significantly contribute to global temperature increase and pollution. 2 Renewable energy generation and storage devices are being developed to meet the ever-increasing energy demand. Among

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Metal Oxides for Supercapacitors

Adli

Hosseini

et al. 2021

Handbook of Supercapacitor Materials

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Sprayed bismuth oxide interconnected nanoplate supercapacitor electrode materials

Cited by 53 publications

References 14 publications

Bismuth Oxide Faceted Structures as a Photocatalyst Produced Using an Atmospheric Pressure Plasma Jet

Bismuth Oxide Faceted Structures as a Photocatalyst Produced Using an Atmospheric Pressure Plasma Jet

Hybrid nanostructured bismuth‐cobalt oxides/hydroxides binder‐free electrodes fabricated by two‐step electrodeposition for high‐performance supercapacitors

Metal Oxides for Supercapacitors

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