Probing the electrochemical properties of NiMn2O4 nanoparticles as prominent electrode materials for supercapacitor applications

Dhas, Suprimkumar D.; Maldar, P.S.; Patil, Meenal D.; Waikar, Maqsood R.; Sonkawade, R. G.; Chakarvarti, S. K.; Shinde, Surendra K.; Kim, Dae Y.

doi:10.1016/j.mseb.2021.115298

Cited by 43 publications

(6 citation statements)

References 32 publications

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“…The deconvolution of the Ni 2p 1/2 and Ni 2p 3/2 doublet peaks indicates Ni 2+ states at 871.40 and 854.42 eV, respectively. 40 This information indicates the valence states of nickel and manganese within the synthesized material and sheds light on the diverse exposed chemical functionalities at the surface of the material.…”

Section: Resultsmentioning

confidence: 93%

“…2(e) describes the deconvoluted narrow scan spectrum of Mn with bands corresponding to Mn 2p 1/2 and Mn 2p 3/2 at 643.37 and 653.56 eV, which signify Mn 2+ and Mn 3+ states, while Fig. 2 40 This information indicates the valence states of nickel and manganese within the synthesized material and sheds light on the diverse exposed chemical functionalities at the surface of the material.…”

Section: Dalton Transactions Papermentioning

confidence: 95%

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Synthesis of NiMn₂O₄/PANI nanosized composite with increased specific capacitance for energy storage applications

Abdullah,

Shah,

Jabbour

et al. 2024

Dalton Trans.

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Section: Resultsmentioning

confidence: 93%

Section: Dalton Transactions Papermentioning

confidence: 95%

Synthesis of NiMn₂O₄/PANI nanosized composite with increased specific capacitance for energy storage applications

Abdullah,

Shah,

Jabbour

et al. 2024

Dalton Trans.

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“…at 1 A g −1 when the electrolyte concentration was increased from 1 to 6 m, as shown in Figure 4j,k. [93] Conclusively, the 1D nanostructured nanowire morphology with a high surface area yielded a considerably high specific capacitance and energy density. This was due to the efficient pene-tration of the electrolyte OH − ions and utilization of the electroactive surface sites; the corresponding mechanism is presented in Figure 4l.…”

Section: Amo Ncs For Supercapacitorsmentioning

confidence: 93%

“…Reproduced with permission. [93] Copyright 2021, Elsevier Ltd. l) Pseudo-capacitance mechanism of 1D AMO nanostructures. at 1 A g −1 when the electrolyte concentration was increased from 1 to 6 m, as shown in Figure 4j,k.…”

Section: Amo Ncs For Supercapacitorsmentioning

confidence: 99%

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Nanostructured Spinel Manganates and Their Composites for Electrochemical Energy Conversion and Storage

Rani

Sivanantham

Cho

2023

Adv Funct Materials

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Spinel manganates (AMn2O4; A = Co, Ni, Cu, Zn, and Fe; collectively referred to as AMO) are promising electrode materials for water electrolyzers, pseudocapacitors, and batteries owing to their inherent advantages such as valence variability, high catalytic activity, conductivity, stability, low‐cost, and environmental friendliness. Nanostructured materials, with a large surface area and short ion diffusion length, offer great potential for achieving enhanced electrochemical performance. This review summarizes spinel manganates with various nanostructured morphologies and discusses the impact of the structure and composition on the electrochemical performance. The review demonstrates that nanostructured spinel manganates with preferred A‐site cation significantly improve the thermodynamics and electrochemical reaction kinetics at solid–liquid and solid–solid interfaces. Notably, faceted, hollow, 1D nanostructured CoMn2O4 and its nanocomposites (CoMn/CoMn2O4 and NiMn2O4/C) exhibit outstanding electrochemical performance. The review also provides an overview of the importance of energy conversion and storage, and the advantages of spinel manganates as electrode materials. Additionally, the review describes feasible methods of synthesizing AMO nanostructures and nanocomposites. The insights provided in this review are expected to contribute to the synthesis of spinel manganates with desired morphologies and compositions, enabling the future development of efficient electrode materials for energy conversion and storage devices.

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Flexible Ni‐Based Bimetallic Spinel Oxide (NiM₂O₄, M = Mn, Fe, Co) Electrodes for Supercapacitor Applications

Maneesard,

Somsongkul,

Chirawatkul

et al. 2024

Physica Status Solidi (a)

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Herein, the single‐phase Ni‐based bimetallic spinel oxide (NiM2O4, M = Mn, Fe, Co) nanoparticles are successfully synthesized by sol–gel method and coated on a carbon cloth substrate to form flexible electrodes for supercapacitor applications. The effects of transition metal activity, calcination temperature, surface, and textural properties on the electrochemical properties of spinel electrode materials are demonstrated. It is found that lowering the calcination temperature results in a decrease in crystallite size and particle size, leading to an increase in surface area and pore volume. X‐Ray absorption spectroscopy reveals the presence of Mn2+/3+, Fe2+/3+, and Co2+/3+ in materials. According to the electrochemical studies, NiMn2O4 electrode in Na2SO4 electrolyte exhibits electrical double‐layer capacitance behavior, while NiFe2O4 and NiCo2O4 electrodes in KOH electrolyte exhibit pseudocapacitive behavior. All electrode materials have low solution resistance and charge transfer resistance. NiCo2O4 provides the highest specific capacitance (85.60 F g−1 at 2.5 A g−1) followed by NiFe2O4 and NiMn2O4. It seems likely that the high electrochemical activity of Co2+/3+ and small particle size of NiCo2O4 nanoparticles play an important role in improving the redox process and charge transfer, which may enhance the electrochemical performance of this electrode material.

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Probing the electrochemical properties of NiMn2O4 nanoparticles as prominent electrode materials for supercapacitor applications

Cited by 43 publications

References 32 publications

Synthesis of NiMn₂O₄/PANI nanosized composite with increased specific capacitance for energy storage applications

Synthesis of NiMn₂O₄/PANI nanosized composite with increased specific capacitance for energy storage applications

Nanostructured Spinel Manganates and Their Composites for Electrochemical Energy Conversion and Storage

Flexible Ni‐Based Bimetallic Spinel Oxide (NiM₂O₄, M = Mn, Fe, Co) Electrodes for Supercapacitor Applications

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Probing the electrochemical properties of NiMn2O4 nanoparticles as prominent electrode materials for supercapacitor applications

Cited by 43 publications

References 32 publications

Synthesis of NiMn2O4/PANI nanosized composite with increased specific capacitance for energy storage applications

Synthesis of NiMn2O4/PANI nanosized composite with increased specific capacitance for energy storage applications

Nanostructured Spinel Manganates and Their Composites for Electrochemical Energy Conversion and Storage

Flexible Ni‐Based Bimetallic Spinel Oxide (NiM2O4, M = Mn, Fe, Co) Electrodes for Supercapacitor Applications

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Product

Resources

About

Synthesis of NiMn₂O₄/PANI nanosized composite with increased specific capacitance for energy storage applications

Synthesis of NiMn₂O₄/PANI nanosized composite with increased specific capacitance for energy storage applications

Flexible Ni‐Based Bimetallic Spinel Oxide (NiM₂O₄, M = Mn, Fe, Co) Electrodes for Supercapacitor Applications