Transition metal chalcogenide based MnSe heterostructured with NiCo<sub>2</sub>O<sub>4</sub> as a new high performance electrode material for capacitive energy storage

Raman, V.; Chinnadurai, Deviprasath; Rajendiran, Rajmohan; Chebrolu, Venkata Thulasivarma; Vinodh, Rajangam

doi:10.1039/c9nj02711d

Cited by 34 publications

(27 citation statements)

References 43 publications

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“…Selenium is less toxic and has multiple oxidation states resulting in various applications. Also, selenides are not stable during electrochemical performance, so there is a need to form a hierarchical structure with limited exposure of the atoms on the surface to store charge. − In the Introduction, the electrochemical properties and outcomes of tungsten oxide is given. In the present work, we have tried to make a tungsten oxide–selenium composite to overcome all the above issues to develop a nanocomposite for energy storage application.…”

Section: Resultsmentioning

confidence: 99%

Two-Dimensional Tungsten Oxide/Selenium Nanocomposite Fabricated for Flexible Supercapacitors with Higher Operational Voltage and Their Charge Storage Mechanism

Barik

Yadav

Jha

et al. 2021

ACS Appl. Mater. Interfaces

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The present work elaborates the high-energy-density, stable, and flexible supercapacitor devices (full-cell configuration with asymmetric setup) based on a two-dimensional tungsten oxide/selenium (2D WO 3 /Se) nanocomposite. For this, the 2D WO 3 /Se nanocomposite synthesized by a hydrothermal method followed by air annealing was coated on a flexible carbon cloth current collector and combined separately with both 0.1 M H 2 SO 4 and 1-butyl-3-methyl imidazolium tetrafluoroborate room temperature ionic liquid (BmimBF 4 RTIL) as electrolyte. Different physicochemical characterization techniques, viz., transmission electron microscopy, scanning electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy, are utilized for phase confirmation and morphology identification of the obtained samples. The electrochemical analysis was used to evaluate charge storage mechanism. The half-cell configuration (three electrode system) in 0.1 M H 2 SO 4 shows a specific capacitance of 564 F g −1 at 6 A g −1 current density, whereas with ionic liquid as electrolyte, a higher specific capacitance of 1650 F g −1 was obtained at a higher current of 40 mA and working potential of 4 V. Importantly, the asymmetric flexible supercapacitor device with PVA−H 2 SO 4 electrolyte shows a working voltage of 1.7 V. A specific capacitance of 858 mF g −1 is obtained for the asymmetric electrode system with an energy density of 47 mWh kg −1 and a power density of 345 mW kg −1 at a current density of 0.2 A g −1 .

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Section: Resultsmentioning

confidence: 99%

Two-Dimensional Tungsten Oxide/Selenium Nanocomposite Fabricated for Flexible Supercapacitors with Higher Operational Voltage and Their Charge Storage Mechanism

Barik

Yadav

Jha

et al. 2021

ACS Appl. Mater. Interfaces

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“…When the scan rate is 5 mV s −1 , the redox peaks at 0.22 and 0.56 V can be attributed to the oxidation and reduction of Co 2+ /Co 3+ and Mn 3+ / Mn 4+ during the CV cycles. 41 The redox mechanism of Mn−Co−S− Se electrode in 2 mol/L KOH is shown as follows: 34,42…”

Section: Resultsmentioning

confidence: 99%

Mn–Co–S–Se Nanowires for Energy Storage and Conversion

Chen

et al. 2020

ACS Appl. Nano Mater.

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A facile hydrothermal method is used to simultaneously introduce S 2− and Se 2− in Mn−Co precursor to fabricate a novel quaternary metal sulfur selenide electrode. Mn−Co−S−Se electrodes exhibit excellent electrical and electrocatalytic properties for supercapacitors and electrocatalysts. Mn−Co−S−Se delivers high specific capacitance of 2509 F g −1 (corresponding to 278 mAh g −1 ) and excellent cycling performance with capacitance only decreasing 9% after 5000 cycles. The Mn−Co−S−Se electrode is also utilized as electrocatalysts for hydrogen evolution reaction, which exhibits a low overpotential of 126 mV at 10 mA cm −2 . These results are attributed to rich redox reaction, special nanostructure, and high electrical conductivity achieved by coeffect of S 2− and Se 2− . The method used in this work can also be applied to fabricating other quaternary metal dichalcogenides materials. These results demonstrate the potential of Mn−Co−S−Se nanowire electrodes for application in energy storage and conversion.

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“…These remarkable properties suggest that metal chalcogenides-base materials can be used as cuttingedge active electrode materials in PIHCs. [44][45][46] Due to the integration of two energy storage mechanisms in one device, TMCs show several preponderances, including (1) higher battery capacity and energy density than SCs, (2) higher power density than LIBs, (3) broad operating temperature range from À25 to 80 C, and (4) self-discharge properties lower than SCs. 47,48 Most metal chalcogenides have a two-dimensional (2D) layered structure and low reaction energy barriers for the handling of alkali metal ions.…”

Section: Transition Metal Chalcogenides Nanomaterials For Pihcsmentioning

confidence: 99%

“…The MnSe(20)/NiCo 2 O 4 asymmetric cell demonstrated excellent long-term cycling stability over 5000 cycles, with an 86 percent capacitive retention. 46 The PIHC system centered on MoS 2/3 Se 4/3 /C-HNT anode and industrial AC cathode (denoted as MoS 2/3 Se 4/3 /C-HNT/AC) is further constructed to determine its possible applications, as shown schematically in Fig. 6a .…”

Section: Transition Metal Chalcogenides (Tmcs) Based Composite Electr...mentioning

confidence: 99%

Research progress in transition metal chalcogenide based anodes for K-ion hybrid capacitor applications: a mini-review

Sajjad

Cheng

2021

RSC Adv.

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Transition metal chalcogenide based MnSe heterostructured with NiCo₂O₄ as a new high performance electrode material for capacitive energy storage

Abstract: The quest for the development of promising electrode materials for energy storage persists.

Cited by 34 publications

References 43 publications

Two-Dimensional Tungsten Oxide/Selenium Nanocomposite Fabricated for Flexible Supercapacitors with Higher Operational Voltage and Their Charge Storage Mechanism

Two-Dimensional Tungsten Oxide/Selenium Nanocomposite Fabricated for Flexible Supercapacitors with Higher Operational Voltage and Their Charge Storage Mechanism

Mn–Co–S–Se Nanowires for Energy Storage and Conversion

Research progress in transition metal chalcogenide based anodes for K-ion hybrid capacitor applications: a mini-review

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Transition metal chalcogenide based MnSe heterostructured with NiCo2O4 as a new high performance electrode material for capacitive energy storage

Abstract: The quest for the development of promising electrode materials for energy storage persists.

Cited by 34 publications

References 43 publications

Two-Dimensional Tungsten Oxide/Selenium Nanocomposite Fabricated for Flexible Supercapacitors with Higher Operational Voltage and Their Charge Storage Mechanism

Two-Dimensional Tungsten Oxide/Selenium Nanocomposite Fabricated for Flexible Supercapacitors with Higher Operational Voltage and Their Charge Storage Mechanism

Mn–Co–S–Se Nanowires for Energy Storage and Conversion

Research progress in transition metal chalcogenide based anodes for K-ion hybrid capacitor applications: a mini-review

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Transition metal chalcogenide based MnSe heterostructured with NiCo₂O₄ as a new high performance electrode material for capacitive energy storage