Fabrication of ultrafine manganese oxide-decorated carbon nanofibers for high-performance electrochemical capacitors

Yang, Ying; Lee, Sungwon; Brown, Dennis E.; Zhao, Hongbin; Li, Xinsong; Jiang, Daqiang; Hao, Shijie; Zhao, Yongxiang; Cong, Daoyong; Zhang, Xin; Ren, Yang

doi:10.1016/j.electacta.2016.06.012

Cited by 13 publications

(2 citation statements)

References 35 publications

(40 reference statements)

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“…The pseudocapacitive materials exhibit various oxidation states, and in this type, energy storage takes place on account of surface adsorption‐desorption and reversible redox reactions occur on the electrode surface. Several metal oxides, hydroxides, and conducting polymers lie in the category of pseudocapacitive materials 4,9,10 . Compared to EDLCs, the pseudocapacitor demonstrates better energy storage performance and exhibits higher specific capacitance 11‐14 .…”

Section: Introductionmentioning

confidence: 99%

Green synthesis of nickel‐manganese/polyaniline‐based ternary composites for high‐performance supercapattery devices

2021

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Summary The study divulges formation of nickel‐manganese phosphate and polyaniline (NiMn(PO4)2‐PANI)‐based ternary composites at different aspect ratios, synthesized via facile sonochemical method. The composite is utilized for high‐performance energy storage applications. The composite with 30 wt% PANI depicts the best electrochemical performance with maximum specific capacity (Qs) of 847 C g−1 at 0.5 A g−1 in three‐electrode assembly. The supercapattery device is assembled by utilizing NiMn(PO4)2‐PANI and activated carbon. The supercapattery demonstrates outstanding performance by delivering a remarkable specific energy of 71.3 Wh kg−1, and the maximum specific power is 12 686 W kg−1 and capacity retention of 97.6% after 5000 GCD series. Furthermore, the diffusive and capacitive mechanism is evaluated by applying Dunn's model. The b values are calculated to confirm the hybrid nature of the device. The study depicts the potentials of reported ternary composites as self‐supported electrode materials in the development of cost‐effective and efficient energy storage system.

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Section: Introductionmentioning

confidence: 99%

Green synthesis of nickel‐manganese/polyaniline‐based ternary composites for high‐performance supercapattery devices

2021

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“…EDLC consist of high specific surface area materials, like carbon nano-materials and store energy in the electrical double layers. Pseudocapacitors materials show several oxidation states and store energy not only in electric double layers, but also in reversible redox reactions occurring on or near the electrode surface, like conductive polymers and transition metal oxides/hydroxides [5][6][7][8]. Therefore, in terms of comparison, pseudocapacitor exhibits better capacitive behavior with high specific capacitance [9].…”

Section: Introductionmentioning

confidence: 99%

Hydrothermal synthesis of manganese phosphate/graphene foam composite for electrochemical supercapacitor applications

Mirghni

Madito

Masikhwa

et al. 2017

Journal of Colloid and Interface Science

103

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Manganese phosphate (Mn(PO) hexagonal micro-rods and (Mn(PO) with different graphene foam (GF) mass loading up to 150mg were prepared by facile hydrothermal method. The characterization of the as-prepared samples proved the successful synthesis of Mn(PO) hexagonal micro-rods and Mn(PO)/GF composites. It was observed that the specific capacitance of Mn(PO)/GF composites with different GF mass loading increases with mass loading up to 100mg, and then decreases with increasing mass loading up to 150mg. The specific capacitance of Mn(PO)/100mg GF electrode was calculated to be 270Fg as compared to 41Fg of the pristine sample at a current density of 0.5Ag in a three-electrode cell configuration using 6M KOH. Furthermore, the electrochemical performance of the Mn(PO)/100mg GF electrode was evaluated in a two-electrode asymmetric cell device where Mn(PO)/100mg GF electrode was used as a positive electrode and activated carbon (AC) from coconut shell as a negative electrode. AC//Mn(PO)/100mg GF asymmetric cell device was tested within the potential window of 0.0-1.4V, and showed excellent cycling stability with 96% capacitance retention over 10,000 galvanostatic charge-discharge cycles at a current density of 2Ag.

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Transition Metal Oxide/Carbon Nanofiber Composites as Electrode Materials for Supercapacitors

Banerjee

Verma

et al. 2020

Handbook of Nanocomposite Supercapacitor Materials II

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Fabrication of ultrafine manganese oxide-decorated carbon nanofibers for high-performance electrochemical capacitors

Abstract: Fabrication of ultrafine manganese oxide-decorated carbon nanofibers for high-performance electrochemical capacitors, Electrochimica Acta http://dx.

Cited by 13 publications

References 35 publications

Green synthesis of nickel‐manganese/polyaniline‐based ternary composites for high‐performance supercapattery devices

Green synthesis of nickel‐manganese/polyaniline‐based ternary composites for high‐performance supercapattery devices

Hydrothermal synthesis of manganese phosphate/graphene foam composite for electrochemical supercapacitor applications

Transition Metal Oxide/Carbon Nanofiber Composites as Electrode Materials for Supercapacitors

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