Electrosynthesis of Bi2O3 thin films and their use in electrochemical supercapacitors

Gujar, T.P.; Shinde, V.R.; Lokhande, C.D.; Han, Sung‐Hwan

doi:10.1016/j.jpowsour.2006.05.036

Cited by 259 publications

(142 citation statements)

References 30 publications

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“…Similar processes were observed for titanium dioxide electrodes in previous reports [42,43]. Anodic peaks marked as BC^and the cathodic peak BD^are characteristic for Bi 3 YO 6 . The anodic current density maximum shows a linear relation with the scan rate (see Fig.…”

Section: −1supporting

confidence: 87%

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Does the low optical band gap of yellow Bi3YO6 guarantee the photocatalytical activity under visible light illumination?

Trzciński

Szkoda

Herman

et al. 2018

J Solid State Electrochem

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Bi 3 YO 6 , which is known as an ionic conductor, was tested here as an electrode and photoanode in contact with aqueous electrolytes. Bi 3 YO 6 was deposited onto the Pt substrate and the such prepared electrode was polarized in various aqueous electrolytes. The optical energy band gap of the material equal to 1.89 eV was determined using the Kubelka-Munk function resulting from the UV-Vis spectrum (allowed indirect transition) and also was calculated using the semi-empirical PM7 method (3.38 eV of HOMO-LUMO energy gap). Despite the yellow color of Bi 3 YO 6 , the tested material exhibits photoelectroactivity only in the UV range of electromagnetic radiation. The anodic photocurrent characteristic for n-type metal oxide semiconductors was recorded. The electrode exhibits diffusion-controlled cathodic activity while polarized in chloride-free aqueous electrolytes.

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Section: −1supporting

confidence: 87%

“…A group of bismuth inorganic compounds such as Bi 2 O 3 , BiVO 4 , BIMEVOX, BiMoO 6 , BiOCl, and Bi 2 WO 6 are known to act as electrode materials, exhibiting high electrical capacity, chemical stability under multiple polarization cycles, photoelectroactivity, and photocatalytical properties [6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Does the low optical band gap of yellow Bi3YO6 guarantee the photocatalytical activity under visible light illumination?

Trzciński

Szkoda

Herman

et al. 2018

J Solid State Electrochem

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“…Bi2O3 films and powders have been electrochemically synthesized by direct cathodic deposition from Bi (III) solutions [27][28][29][30], and by cathodic electrodeposition of bismuth metal, followed by its further anodic oxidation [31].…”

Section: Ho2• + H2o2→ •Oh + H2o + O2 Eq (3)mentioning

confidence: 99%

Synthesis and characterization of new Ti–Bi2O3 anode and its use for reactive dye degradation

Petrović

Mitrović

Antonijević

et al. 2015

Materials Chemistry and Physics

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This paper reports the synthesis, characterization and application of a Ti-Bi2O3 anode for the electrochemical decolorization of the textile dye Reactive Red 2. The anode was synthesized by electrodeposition on a Ti substrate immersed in an acidic bismuth (III) solution at constant potential, followed by calcination in air at 600°C. Thermogravimetric Analysis (TGA), Energydispersive X-ray spectroscopy (EDX) and X-ray diffraction (XRD) analysis revealed that the electrodeposited material was predominantly metallic bismuth, which was oxidized to pure α-Bi2O3 during the calcination in air. SEM micrographs revealed that the Bi2O3 coat at the anode surface was inhomogeneous and porous. Reactive Red 2 was completely electrochemically decolorized at the synthesized anode in the presence of H2O2. The applied current density, H2O2 and Na2SO4 concentration, medium pH and initial dye concentration affected the dye decolorization rate. The optimal process parameters were found to be as follows: an applied current density of 40 mA cm -2 using a mixture of 10 mmol dm -3 H2O2 and 10 mmol dm -3 Na2SO4 at pH 7. The dye decolorization rate was shown to decrease as its initial concentration increased. The decolorization reactions were found to follow pseudo-first order kinetics.

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“…Therefore, this results in the enrichment of the electrolyte near the solidliquid interface and the polarization of the electrode, which then leads to a drop in the specific capacitance of the supercapacitor [24]. Meanwhile, the decreasing trend of the specific capacitance indicates that parts of the surface of the electrode are inaccessible at high charge-discharge rates by the electrolyte [25]. The C-V curves at different cycling stages and a variation of specific capacitance over 10,000 cycles are shown in Fig.…”

Section: Electrochemical Performancementioning

confidence: 99%

Chemical bath deposition synthesis and electrochemical properties of MnO2 thin film: Effect of deposition time and bath temperature

Aref

Tang

2014

Materials Science-Poland

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Manganese dioxide (MnO 2 ) films with different nanostructures were deposited on indium tin oxide (ITO) glasses by using chemical bath deposition (CBD). Deposition temperature and time were varied from 60°C to 90°C and from 2 h to 72 h, respectively. The samples have been characterized using an X-ray diffraction (XRD), field emission scanning electron microscope (SEM) and an electrochemical workstation. The films deposited at 60°C for 8 h showed that obtained nanoflowers had an amorphous nature, while those deposited at higher temperatures of 70, 80 and 90°C showed a well-developed nanowire and nanorod morphology. However, those which were deposited at 60°C, showed the best electrochemical properties, including a higher specific capacitance, good rate of performance and a cycling stability (93 % loss of the initial value after 10,000 cycles).

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Electrosynthesis of Bi2O3 thin films and their use in electrochemical supercapacitors

Cited by 259 publications

References 30 publications

Does the low optical band gap of yellow Bi3YO6 guarantee the photocatalytical activity under visible light illumination?

Does the low optical band gap of yellow Bi3YO6 guarantee the photocatalytical activity under visible light illumination?

Synthesis and characterization of new Ti–Bi2O3 anode and its use for reactive dye degradation

Chemical bath deposition synthesis and electrochemical properties of MnO2 thin film: Effect of deposition time and bath temperature

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