Capacitive property studies of electrochemically synthesized Co3O4 and Mn3O4 on inexpensive stainless steel current collector for supercapacitor application

Maile, Nagesh; Shinde, Surendra K.; Patil, Satyajeet S.; Kim, D.-Y.; Fulari, A. V.; Lee, D.S.; Fulari, V. J.

doi:10.1016/j.ceramint.2020.02.265

Cited by 29 publications

(6 citation statements)

References 64 publications

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“…Although the average valence state of Mn is 3.3+, the normalized mole fractions for Mn 2+ , Mn 3+ , and Mn 4+ are 11.7 %, 39.1 %, and 49.2 %, respectively analyzed by the fitted peak in Mn 2p. Other remaining peaks at 644.8 eV, 648.2 eV, and 655.3 eV were assigned to satellite peaks [34–37] . In deconvoluted O 1s spectra, three distinct oxygen bonds, sequentially Mn−O−Mn, Mn−O−H, and H−O−H bonds, were observed at the characteristic energies of 529.4 eV, 531.1 eV, and 532.5 eV, as shown in Figure 3c [38] …”

Section: Resultsmentioning

confidence: 92%

“…Other remaining peaks at 644.8 eV, 648.2 eV, and 655.3 eV were assigned to satellite peaks. [34][35][36][37] In deconvoluted O 1s spectra, three distinct oxygen bonds, sequentially MnÀ OÀ Mn, MnÀ OÀ H, and HÀ OÀ H bonds, were observed at the characteristic energies of 529.4 eV, 531.1 eV, and 532.5 eV, as shown in Figure 3c. [38] Further morphological investigations were carried out by transmission electron microscopy (TEM) analysis.…”

Section: Resultsmentioning

confidence: 99%

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Asymmetric Supercapacitors using Manganese Oxide Nanorods and Activated Carbon

et al. 2022

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The utilization of Ionic liquids (ILs) for synthesizing inorganic materials has shown considerable potential in the last decade. The unmatchable advantages, like low vapor pressure, good thermal stability, tunable solubility, and synthesis route flexibility, make them more promising than their aqueous counterparts. This work portrays the use of various ILs for synthesizing asymmetrically oriented α-MnO 2 nanorods. The formation of nanorods was more energetically favorable, and the addition of IL helped increase the material's surface area and conductivity. The enhanced surface and conductivity help in boosting the supercapacitive performance, as the material exhibits 352 F g À 1 in 1 M Na 2 SO 4 electrolyte. The synthesized material and activated carbon were used to assemble an asymmetric supercapacitor device. This device has shown an excellent energy density of 28.5 Wh kg À 1 and a power density of 96.5 W kg À 1 in 1 M Na 2 SO 4 electrolyte.

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Section: Resultsmentioning

confidence: 92%

Section: Resultsmentioning

confidence: 99%

Asymmetric Supercapacitors using Manganese Oxide Nanorods and Activated Carbon

et al. 2022

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“…The Mn2O3-1, Mn2O3-2 and Mn2O3-3 electrodes render the maximum specific capacitance of 262, 550 and 656 Fg -1 respectively at a current density of 1 Ag -1 . The high specific capacitance of Mn2O3-3 (656 Fg -1 ) is higher when compared to literatures based on Mn-based metal oxides (Mn3O4 thin films (194 Fg -1 ) [40], Mn3O4 nanowires on reduced graphene oxide (437 Fg -1 ) [34], Mn3O4 nanoparticles (144.5 Fg -1 ) [35], Mn3O4 (109 Fg -1 ) [41], Mn2O3 microsheet arrays (566.6 Fg -1 ) [23], Mn2O3 nanocubics (191 Fg -1 ) [22], Mn2O3 nanoparticles (460 Fg -1 ) [19] and Mn2O3 nanoflakes (414 Fg -1 ) [24]). The superior specific capacitance features might accredit to the following motives: (i) Generally, one-dimensional nanorods possessing more surface area than any other nanoscale dimensions, which render the high electroactive sites and thus enhancing specific capacitance.…”

Section: 4electrochemical Analysismentioning

confidence: 81%

Facile Synthesis Mn2O3 Nanorod Arrays: A Significant Material for Supercapacitor Electrode Application

Amirtharaj¹,

Murugesan²

2021

Preprint

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Mn2O3 is a significant candidate for various applications. In the present work, the Mn2O3 nanorod arrays have been successfully prepared through facile sonochemical method with the aid of cetyl trimethyl ammonium bromide (CTAB) template. The crystalline phase and bonding properties have ben confirmed through X-ray diffraction analysis (XRD) and Fourier transform infrared (FTIR) spectroscopic analysis. The electrochemical properties were analysed through various techniques such as cyclic voltammetric and galvanostatic charge/discharge analysis. Interestingly, cyclic voltammetric (CV) curves confirms the electric double layer capacitor-based charge storage mechanism and it render the maximum specific capacitance of 647 Fg-1 at a scan rate 5 mVs-1 whereas the galvanostatic charge/discharge studies offer the specific capacitance of 656 Fg-1 at a current density of 1 Ag-1. The Mn2O3 nanorod arrays provide the maximum energy and power densities of 91.1 Wh Kg-1 and 14985 Wkg-1 respectively. In addition, the cyclic stability analysis exhibit only 12 % initial capacitance degradation over 3000 CV cycles at a scan rate of 100 mVs-1. The hopeful outcomes demonstrate the significant of the Mn2O3 nanorod arrays as electrode material for supercapacitor devices.

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“…[59,60] The category of metal-based substrates consists of copper foils, nickel foils, titanium foils, aluminum foils, stainless steel foil, nickel foam, copper foam, and stainless steel mesh ( Figure 5, Table 1, and Table 2). [61,62] Such substrates possess excellent structural stability, good conductivity, lightweight, high electrochemical stability, and large surface area. Numerous research groups investigated metal-based CCs in various ways to attain excellent EC performance because CC is crucial for cycling…”

Section: Current Collectors Used For the Fabrication Of Binder-free E...mentioning

confidence: 99%

Resent Development of Binder‐Free Electrodes of Transition Metal Oxides and Nanohybrids for High Performance Supercapacitors – A Review

Parveen

2023

The Chemical Record

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The entire world is aware of the serious issue of global warming and therefore utilizing renewable energy sources is the most encouraging steps toward solving energy crises, and as a result, energy storage solutions are necessary. The supercapacitors (SCs) have a high‐power density and a long cycle life, they are promising as an electrochemical conversion and storage device. In order to achieve high electrochemical performance, electrode fabrication must be implemented properly. Electrochemically inactive and insulating binders are utilized in the conventional slurry coating method of making electrodes to provide adhesion between the electrode material and the substrate. This results in an undesirable “dead mass,” which lowers the overall device performance. In this review, we focused on binder‐free SCs electrodes based on transition metal oxides and composites. With the best examples providing the critical aspects, the benefits of binder‐free electrodes over slurry‐coated electrodes are addressed. Additionally, different metal‐oxides used in the fabrication of binder‐free electrodes are assessed, taking into account the various synthesis methods, giving an overall picture of the work done for binder‐free electrodes. The future outlook is provided along with the benefits and drawbacks of binder‐free electrodes based on transition metal oxides.

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Capacitive property studies of electrochemically synthesized Co3O4 and Mn3O4 on inexpensive stainless steel current collector for supercapacitor application

Cited by 29 publications

References 64 publications

Asymmetric Supercapacitors using Manganese Oxide Nanorods and Activated Carbon

Asymmetric Supercapacitors using Manganese Oxide Nanorods and Activated Carbon

Facile Synthesis Mn2O3 Nanorod Arrays: A Significant Material for Supercapacitor Electrode Application

Resent Development of Binder‐Free Electrodes of Transition Metal Oxides and Nanohybrids for High Performance Supercapacitors – A Review

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