Manganese oxides: promising electrode materials for Li-ion batteries and supercapacitors

Ubale, A.U.; Waghmare, M. A.; Iqbal, Kashif; Pathan, Habib M.

doi:10.1007/s10854-020-04033-y

Cited by 11 publications

(6 citation statements)

References 141 publications

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“…The crystal phase structure of manganese shows the distribution of a number of oxygen and manganese sites, and both of them are important to the electrochemical performance, especially as it relates to the specific capacitance. The pure Mn 3 O 4 has poor conductivity and cyclic stability as an electrode [ 58 ]. However, it could be improved by making Mn 3 O 4 into a composite with carbon [ 59 ].…”

Section: Resultsmentioning

confidence: 99%

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Mesoporous Manganese Oxide/Lignin-Derived Carbon for High Performance of Supercapacitor Electrodes

et al. 2021

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This study explores the modification of lignin with surfactants, which can be used as a template to make mesoporous structures, and can also be used in combination with manganese oxide to produce manganese oxide/lignin-derived carbon. Organosolv extraction, using ethanol (70%) at 150 °C, was carried out to extract lignin from oil palm wood. Lignin was then mixed with Pluronic F-127, with and without Mn(NO3)2, and then crosslinked with acidic formaldehyde, resulting in a carbon precursor-based modified lignin. Carbonization was carried out at 900 °C to produce lignin-derived carbon and manganese oxide/lignin-derived carbon. The characterization materials included Fourier transform infrared (FTIR) spectroscopy, scanning electron microscope-energy dispersive X-ray (SEM-EDX) mapping, X-ray diffraction (XRD), and N2-sorption analysis. FTIR curves displayed the vibration bands of lignin and manganese oxide. SEM images exhibited the different morphological characteristics of carbon from LS120% (lignin with a Pluronic surfactant of 120%) and LS120%Mn20% (lignin with a Pluronic of 120% and Mn oxide of 20%). Carbon LS120% (C-LS120%) showed the highest specific surface area of 1425 m2/g with a mean pore size of 3.14 nm. The largest mean pore size of 5.23 nm with a specific surface area of 922 m2/g was exhibited by carbon LS120%-Mn20% (C-LS120%-Mn20%). C-LS120%Mn20% features two phases of Mn oxide crystals. The highest specific capacitance of 345 F/g was exhibited by C-LS120%-Mn20%.

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Section: Resultsmentioning

confidence: 99%

“…However, it could be improved by making Mn 3 O 4 into a composite with carbon [ 59 ]. The porous manganese oxide–carbon composite increases conductivity and has excellent specific capacitance and cyclic stability [ 58 , 59 ]. The mechanism of the discharging reaction in composite materials is estimated to follow Equation (1) [ 56 ].…”

Section: Resultsmentioning

confidence: 99%

Mesoporous Manganese Oxide/Lignin-Derived Carbon for High Performance of Supercapacitor Electrodes

et al. 2021

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“…7,8 Research on the mineral composition and geochemical analysis of rock varnishes have been published worldwide, but only a few studies on the semiconducting characteristics of these Fe/Mn oxide coatings have been reported. 9 Although manganese oxide is an abundant natural resource and is a lowcost material, 10 the electrochemical applications of manganese oxide present in the varnish layer have been overlooked. Manganese oxides occur naturally in both crystalline and amorphous forms, with MnO 6 octahedral units being found in the corners of crystalline layered or tunnelled formations.…”

Section: Introductionmentioning

confidence: 99%

Birnessite-clay mineral couple in the rock varnish: a nature's electrocatalyst

Chaddha

Singh

Malviya

et al. 2022

Sustainable Energy Fuels

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“…Supercapacitors are promising in this regard since recent advancements are suggesting that these devices could be an excellent replacement for Li‐ion batteries in near future. [ 2 ] To improve the energy density of supercapacitors, the scientific community has been paying increasing attention to accelerate the discovery of new and efficient electrode materials such as metal oxides, carbon, and conducting polymers. Activated carbon (AC) is a potential material for porous conducting electrodes suitable for electric double‐layer capacitors for the reasons of good electrical conductivity and high surface area.…”

Section: Introductionmentioning

confidence: 99%

Hydrothermally Grown Zinc Oxide Nanostructures@Carbon Composites for Supercapacitor Application

Gupta

Kumar

Neeleshwar

et al. 2022

Physica Status Solidi (a)

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A simple approach for growing porous nanostructured zinc oxide (ZnO) and making its well‐dispersed nanocomposite with activated carbon (AC) is demonstrated. Synthesis is done hydrothermally at 140 °C for 10 hours. X‐ray diffraction (XRD), energy‐dispersive X‐ray (EDX), and scanning electron microscope (SEM) measurements confirm the formation of crystalline ZnO nanoparticles with flower‐shaped morphology comprising clusters of nanopetals. ZnO and its composite with AC are used to fabricate symmetric hybrid supercapacitors. The electrochemical performance of ZnO electrode is compared to ZnO–AC composite electrode using 1 M Na2SO4 aqueous electrolyte. The electrochemical performance evaluated by cyclic voltammetry (CV) and galvanostatic charge–discharge (GCD) demonstrates enhanced charge storage in ZnO–AC electrodes. The specific capacitance values of ZnO and ZnO–AC‐based electrodes are found to be 214 and 298 F g−1 respectively at a current density of 1 A g−1 and the energy densities are 29.72 and 48.39 Wh kg−1 respectively at power density of 1 kW kg−1. The porous space between ZnO nanopetals and its high surface area geometry coupled with complementing properties of AC seems to facilitate a synergistic effect between ZnO's faradaic and AC's electric double‐layer charge storage mechanisms, thus leading to enhanced specific capacitance with superior performance.

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Manganese oxides: promising electrode materials for Li-ion batteries and supercapacitors

Cited by 11 publications

References 141 publications

Mesoporous Manganese Oxide/Lignin-Derived Carbon for High Performance of Supercapacitor Electrodes

Mesoporous Manganese Oxide/Lignin-Derived Carbon for High Performance of Supercapacitor Electrodes

Birnessite-clay mineral couple in the rock varnish: a nature's electrocatalyst

Hydrothermally Grown Zinc Oxide Nanostructures@Carbon Composites for Supercapacitor Application

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