Altered crystal structure of nickel telluride by selenide doping and a poly(N-methylpyrrole) coating amplify supercapacitor performance

Deshagani, Sathish; Ghosal, Partha; Deepa, Melepurath

doi:10.1016/j.electacta.2020.136200

Cited by 34 publications

(20 citation statements)

References 31 publications

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“…Hexagonally shaped rigid ZnO gives a better capacitance value of 6.42 F/g, followed by hexagonal cup-shaped (6.4 F/g), nanoassembly (5.75 F/g), nanorod (4.03 F/g), and nanosphere (3.67 F/g) ZnO at 10 mV/s. Similarly, nickel telluride treated with selenide doping and poly(N-methylpyrrole) coating [159], N, P and S tri-doped hollow carbon nanocapsules [160], Ag 2 S on Ni mesh [161], carbon nanotube@MnO 2 @polypyrrole composites [162], and nickel sulphide [163] were also prepared by means of the direct coating method for supercapacitor applications. MXene and ε-MnO 2 /MXene [164] were also investigated.…”

Section: Direct Coatingmentioning

confidence: 99%

A Review of Supercapacitors: Materials Design, Modification, and Applications

et al. 2021

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Supercapacitors (SCs) have received much interest due to their enhanced electrochemical performance, superior cycling life, excellent specific power, and fast charging–discharging rate. The energy density of SCs is comparable to batteries; however, their power density and cyclability are higher by several orders of magnitude relative to batteries, making them a flexible and compromising energy storage alternative, provided a proper design and efficient materials are used. This review emphasizes various types of SCs, such as electrochemical double-layer capacitors, hybrid supercapacitors, and pseudo-supercapacitors. Furthermore, various synthesis strategies, including sol-gel, electro-polymerization, hydrothermal, co-precipitation, chemical vapor deposition, direct coating, vacuum filtration, de-alloying, microwave auxiliary, in situ polymerization, electro-spinning, silar, carbonization, dipping, and drying methods, are discussed. Furthermore, various functionalizations of SC electrode materials are summarized. In addition to their potential applications, brief insights into the recent advances and associated problems are provided, along with conclusions. This review is a noteworthy addition because of its simplicity and conciseness with regard to SCs, which can be helpful for researchers who are not directly involved in electrochemical energy storage.

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Section: Direct Coatingmentioning

confidence: 99%

A Review of Supercapacitors: Materials Design, Modification, and Applications

et al. 2021

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“…Capacities vary from 90 to 138, 102 to 402, and 382 to 552 F g −1 when the current density is reduced from 3 to 1 A g −1 (Figures 5d−f and 6a). The advantages of asymmetric supercapacitors include a higher charge storage capacity and a wider potential window compared to their symmetric counterparts, and this has been shown in the past for PMP@NiTe:Se//AC- 38 and AC//b-Ni(OH) 2 -based 39 cells. These reports reveal that the use of asymmetric cell architectures increased the operational voltage window, which resulted in larger energy densities compared to symmetric supercapacitors.…”

Section: Resultsmentioning

confidence: 82%

NiMoO₄@NiMnCo₂O₄ Heterostructure: A Poly(3,4-propylenedioxythiophene) Composite-Based Supercapacitor Powers an Electrochromic Device

Deshagani

Maity

Das

et al. 2021

ACS Appl. Mater. Interfaces

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The hierarchical heterostructure of NiMoO4@NiMnCo2O4 (NMO@NMCO) with furry structures of NMCO juxtaposed with NMO nanowires are endowed with multiple electrochemically active and accessible sites for ion storage, thus delivering an ultrahigh specific capacitance of 2706 F g–1, nearly two-fold times greater than that of sole NMCO. Electrodeposition of an overlayer of a highly robust and electrically conducting polymer, poly(3,4-propylenedioxythiophene) (PProDOT), not only improves the energy storage performance but also assists the binary oxide cathode in retaining its structural integrity during redox cycling. Coupling with an anode of porous flaky carbon (FC) derived from groundnut shells results in an asymmetric supercapacitor of FC//PProDOT@NiMoO4@NiMnCo2O4, which delivers an outstanding capacitance of 552 F g–1, energy and power density ranges of 172–40 Wh kg–1 and 0.75–10 kW kg–1, respectively, and a remarkable cycle life of 50 000 cycles, with ∼97.8% capacitance retention, over an operational voltage window of 1.5 V. From an application perspective, the charged supercapacitor was connected to a complementary coloring reversible electrochromic device (ECD) of Prussian blue//PProDOT, and the ECD state transformed from a pale-blue to a deep blue hue, thus signaling the efficient utilization of energy stored in the supercapacitor. The energy-saving attribute of the ECD was realized in terms of an integrated visible-light modulation of 39% that accompanied the optical transition. Deployment of low-cost devices at homes and commercial spaces, capable of storing and saving energy, is the way forward, and this is one significant step in this direction.

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“…Choa et al converted Ag 2 Te nanotubes to PbTe nanotubes by changing the silver-to-lead atomic ratio through the combined processes of electrostatic spinning, ECD, and cation exchange (Figures 5A-F) (Deshagani et al, 2020). Silver atoms were diffused into the Te layer and transformed into Ag 2 Te nanofibers by ECD using silver nanofibers synthesized by Frontiers in Chemistry frontiersin.org electrostatic spinning as the starting material.…”

Section: Electrochemical Deposition Methodsmentioning

confidence: 99%

Section: Preparationmentioning

confidence: 99%

Design, synthesis and application of two-dimensional metal tellurides as high-performance electrode materials

Guo

et al. 2022

Front. Chem.

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Multifunctional electrode materials with inherent conductivity have attracted extensive attention in recent years. Two-dimensional (2D) metal telluride nanomaterials are more promising owing to their strong metallic properties and unique physical/chemical merits. In this review, recent advancements in the preparation of 2D metal tellurides and their application in electrode materials are presented. First, the most available preparation methods, such as hydro/solvent thermal, chemical vapor deposition, and electrodeposition, are summarized. Then, the unique performance of metal telluride electrodes in capacitors, anode materials of Li/Na ion batteries, electrocatalysis, and lithium-sulfur batteries are discussed. Finally, significant challenges and opportunities in the preparation and application of 2D metal tellurides are proposed.

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Altered crystal structure of nickel telluride by selenide doping and a poly(N-methylpyrrole) coating amplify supercapacitor performance

Cited by 34 publications

References 31 publications

A Review of Supercapacitors: Materials Design, Modification, and Applications

A Review of Supercapacitors: Materials Design, Modification, and Applications

NiMoO₄@NiMnCo₂O₄ Heterostructure: A Poly(3,4-propylenedioxythiophene) Composite-Based Supercapacitor Powers an Electrochromic Device

Design, synthesis and application of two-dimensional metal tellurides as high-performance electrode materials

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Altered crystal structure of nickel telluride by selenide doping and a poly(N-methylpyrrole) coating amplify supercapacitor performance

Cited by 34 publications

References 31 publications

A Review of Supercapacitors: Materials Design, Modification, and Applications

A Review of Supercapacitors: Materials Design, Modification, and Applications

NiMoO4@NiMnCo2O4 Heterostructure: A Poly(3,4-propylenedioxythiophene) Composite-Based Supercapacitor Powers an Electrochromic Device

Design, synthesis and application of two-dimensional metal tellurides as high-performance electrode materials

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NiMoO₄@NiMnCo₂O₄ Heterostructure: A Poly(3,4-propylenedioxythiophene) Composite-Based Supercapacitor Powers an Electrochromic Device