Surfactant free chemically deposited wheat spike-like nanostructure on Cu foam for supercapacitor applications

Lokhande, P.E.; Chavan, Umesh; Deokar, Sonal; Ingale, Mukul; Bhosale, Suraj; Kale, Subodh; Kamte, Akshay

doi:10.1016/j.matpr.2019.06.537

Cited by 9 publications

(2 citation statements)

References 15 publications

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“…The porosity observed in the TiO 2 , ZnO, and Nb 2 O 5 photoanodes facilitates the adsorption of NO 2 Lw molecules, which allows the photosensitizer molecules to penetrate the porous TiO 2 , ZnO, and Nb 2 O 5 photoanode so that they get attached to the interfacial surface. − …”

Section: Resultsmentioning

confidence: 99%

Comparative Study of TiO₂, ZnO, and Nb₂O₅ Photoanodes for Nitro-Substituted Naphthoquinone Photosensitizer-Based Solar Cells

Beedri,

Dani,

Gaikwad

et al. 2023

ACS Omega

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This research focuses on the first demonstration of NO2Lw (2-hydroxy-3-nitronaphthalene-1,4-dione) as a photosensitizer and TiO2, ZnO, and Nb2O5 as photoanode materials for dye-sensitized solar cells (DSSCs). The metal-free organic photosensitizer (i.e., nitro-group-substituted naphthoquinone, NO2Lw) was synthesized for this purpose. As a photoanode material, metal oxides, such as TiO2, ZnO, and Nb2O5, were selected. The synthesized NO2Lw contains an electron-withdrawing group (−NO2) and anchoring groups (−OH) that exhibit absorption in the visible range. The UV–visible absorbance spectrum of NO2Lw demonstrates the absorption ascribed to ultraviolet and visible region charge transfer. The NO2Lw interacts with the TiO2, ZnO, and Nb2O5 photoanode, as shown by bathochromic shifts in wavelengths in the photosensitizer-loaded TiO2, ZnO, and Nb2O5 photoanodes. FT-IR analysis also studied the bonding interaction between NO2Lw and TiO2, ZnO, and Nb2O5 photoanode material. The TiO2, ZnO, and Nb2O5 photoanodes loaded with NO2Lw exhibit a shift in the wavenumber of the functional groups, indicating that these groups were involved in loading the NO2Lw photosensitizer. The amount of photosensitizer loading was calculated, showing that TiO2 has higher loading than ZnO and Nb2O5 photoanodes; this factor may constitute an increased J SC value of the TiO2 photoanode. The device performance is compared using photocurrent–voltage (J–V) curves; electrochemical impedance spectroscopy (EIS) measurement examines the device’s charge transport. The TiO2 photoanode showed higher performance than the ZnO and Nb2O5 photoanodes in terms of photoelectrochemical properties. When compared to ZnO and Nb2O5 photoanodes-based DSSCs, the TiO2 photoanode Bode plot shows a signature frequency peak corresponding to electron recombination rate toward the low-frequency region, showing that TiO2 has a greater electron lifetime than ZnO and Nb2O5 photoanodes based DSSCs.

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Section: Resultsmentioning

confidence: 99%

Comparative Study of TiO₂, ZnO, and Nb₂O₅ Photoanodes for Nitro-Substituted Naphthoquinone Photosensitizer-Based Solar Cells

Beedri,

Dani,

Gaikwad

et al. 2023

ACS Omega

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“…Lokhande et al. deposited CuO nanostructured material by chemical deposition under thermal treatment and reported maximum specific capacitance of 184.58 F/g in 2 M KOH at 10 mV/s scan rate [19] …”

Section: Introductionmentioning

confidence: 99%

Spray Synthesized Mn‐doped CuO Electrodes for High Performance Supercapacitor

Kadam

et al. 2022

ChemistrySelect

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A pristine copper oxide and manganese-doped copper oxide nanostructured films were prepared by simple spray pyrolysis technique. A study of the effects of Mn doping with three different concentrations as 2, 4, and 6 wt % were studied in the view of enhancement of supercapacitive performance of copper oxide electrode. The 6 wt % manganese-doped copper oxide thin film changed their surface morphology considerably favorable to the exchange of ions in the Na 2 SO 4 electrolyte. The electrochemical properties of the pristine copper oxide and manganese-doped copper oxide were investigated in 1 M Na 2 SO 4 electrolyte within the potential window of À 1.0 to 0.4 V. A maximum specific capacitance of 801.61 F/g was obtained for the manganese-doped copper oxide thin film electrode.

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Molybdenum trioxide for supercapacitor application: defining the role of temperature and electrolyte

Nsude,

Nwanya

et al. 2024

J Mater Sci: Mater Electron

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Surfactant free chemically deposited wheat spike-like nanostructure on Cu foam for supercapacitor applications

Cited by 9 publications

References 15 publications

Comparative Study of TiO₂, ZnO, and Nb₂O₅ Photoanodes for Nitro-Substituted Naphthoquinone Photosensitizer-Based Solar Cells

Comparative Study of TiO₂, ZnO, and Nb₂O₅ Photoanodes for Nitro-Substituted Naphthoquinone Photosensitizer-Based Solar Cells

Spray Synthesized Mn‐doped CuO Electrodes for High Performance Supercapacitor

Molybdenum trioxide for supercapacitor application: defining the role of temperature and electrolyte

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Surfactant free chemically deposited wheat spike-like nanostructure on Cu foam for supercapacitor applications

Cited by 9 publications

References 15 publications

Comparative Study of TiO2, ZnO, and Nb2O5 Photoanodes for Nitro-Substituted Naphthoquinone Photosensitizer-Based Solar Cells

Comparative Study of TiO2, ZnO, and Nb2O5 Photoanodes for Nitro-Substituted Naphthoquinone Photosensitizer-Based Solar Cells

Spray Synthesized Mn‐doped CuO Electrodes for High Performance Supercapacitor

Molybdenum trioxide for supercapacitor application: defining the role of temperature and electrolyte

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Product

Resources

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Comparative Study of TiO₂, ZnO, and Nb₂O₅ Photoanodes for Nitro-Substituted Naphthoquinone Photosensitizer-Based Solar Cells

Comparative Study of TiO₂, ZnO, and Nb₂O₅ Photoanodes for Nitro-Substituted Naphthoquinone Photosensitizer-Based Solar Cells