Freestanding vanadium nitride nanowire/nitrogen-doped graphene paper with hierarchical pore structure for asymmetric supercapacitor anode

Lim, Tae Seob; Ock, Il Woo; Lee, Jaemin; Jo, Seung Geun; Jung, Yeon Wook; Kwon, Se‐Hun; Song, Taeseup; Park, Woon Ik; Lee, Jung Woo

doi:10.1016/j.jallcom.2022.167858

Cited by 17 publications

(5 citation statements)

References 51 publications

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“…3g). 47 In addition, the other peaks of the high-resolution V 2p represent the other two chemical states of V. The peaks at 515.77 and 523.32 eV can be attributed to V 4+ (V–N–O), while those located at 516.46 and 524.48 eV can be attributed to V 5+ (V–O) (Fig. 3h).…”

Section: Resultsmentioning

confidence: 95%

Ultrafine VN quantum dots modified with a nitrogen-doped reduced graphene oxide anode material for enhanced rate capability and lifespan of lithium-ion batteries

Wang,

Guo,

Wang

et al. 2024

New J. Chem.

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Section: Resultsmentioning

confidence: 95%

Ultrafine VN quantum dots modified with a nitrogen-doped reduced graphene oxide anode material for enhanced rate capability and lifespan of lithium-ion batteries

Wang,

Guo,

Wang

et al. 2024

New J. Chem.

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“…[24] Under the condition that the load mass of the anode material corresponding to the three-electrode system and two-electrode system is 4 mg respectively, the negative material, activated carbon, has a loading capacity of 4.25 mg based on the above equations (1). [25]…”

Section: Assemble Asymmetric Supercapacitormentioning

confidence: 99%

Development of PANI/FeS₂/MnO₂ Composite Electrode Materials for High‐Performance Supercapacitors

Li,

Cui

et al. 2024

ChemistrySelect

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Polyaniline (PANI) has unique physical and chemical peculiarities, so it has been widely researched in the field of energy storage. However, its structure is easy to be damaged during charging and discharging, which seriously affects its application. PANI/FeS2/MnO2 composite materials were successfully prepared by an easy combination of chemical precipitation and chemical oxidative polymerization. The electrochemical test results manifested that the specific capacitance of PANI/FeS2/MnO2 4 : 1 : 3 was 580 F/g at 1 A/g, and had great cyclic stability (capacitance retention rate was 85.2 % after 10000 cycles at 5 A/g). It was because that reticular structure shortened the ion transport path. On the other hand, it was able to effectively mitigate the volume change during long‐term charging and discharging, thus improving the cycling stability. In addition, PANI/FeS2/MnO2 4 : 1 : 3 as the positive and activated carbon (AC) as the negative, an asymmetrical supercapacitor was assembled with a maximal energy density of 37.93 Wh/kg when its power density was 0.85 kW/kg. At the same time, the device possessed a long cycle life (the capacitance conservation rate was 82 % after 5000 cycles at 5 A/g). This excellent performance is due to the excellent synergy between the PANI, FeS2 and MnO2. This study opens a new way to investigate polyaniline‐based composite electrode materials.

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“…In addition to other factors, the designing of a supercapacitor device into which it has to be assembled plays a major role in determining the electrochemical activity of a device (Lim et al, 2023; Wang, Huang, et al, 2020). In this developing era, the major demand is for the development of flexible supercapacitors to widen their applications.…”

Section: Configurations Of Flexible Supercapacitorsmentioning

confidence: 99%

Freestanding carbon‐based hybrid anodes for flexible supercapacitors: Part I—An inclusive outlook on current collectors and configurations

Ghafoor,

Nadeem,

Zahid

et al. 2024

WIREs Energy & Environment

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Flexible supercapacitors with hybrid anodes have gained significant attention in energy storage research, owing to their remarkable specific capacitance, outstanding power and energy densities, rapid charging‐to‐discharging rates, and superior flexibility. However, bare carbonaceous anodes exhibit limited capacitive performance, resulting in low energy density. To address this issue, recent efforts focus on hybridizing carbonaceous anodes with metal‐based active materials to enhance their electrochemical performance. This part of review comprehensively outlines the available options of carbonaceous materials used as substrates for constructing hybrid free‐standing flexible anodes. Various persuasive approaches are discussed, highlighting their effectiveness in enhancing the electrochemical performance of carbonaceous substrates. In addition, this piece of work provides an insight into the possible configurations of such devices for real‐life applications.This article is categorized under: Emerging Technologies > Energy Storage Emerging Technologies > Materials

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Freestanding vanadium nitride nanowire/nitrogen-doped graphene paper with hierarchical pore structure for asymmetric supercapacitor anode

Cited by 17 publications

References 51 publications

Ultrafine VN quantum dots modified with a nitrogen-doped reduced graphene oxide anode material for enhanced rate capability and lifespan of lithium-ion batteries

Ultrafine VN quantum dots modified with a nitrogen-doped reduced graphene oxide anode material for enhanced rate capability and lifespan of lithium-ion batteries

Development of PANI/FeS₂/MnO₂ Composite Electrode Materials for High‐Performance Supercapacitors

Freestanding carbon‐based hybrid anodes for flexible supercapacitors: Part I—An inclusive outlook on current collectors and configurations

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Freestanding vanadium nitride nanowire/nitrogen-doped graphene paper with hierarchical pore structure for asymmetric supercapacitor anode

Cited by 17 publications

References 51 publications

Ultrafine VN quantum dots modified with a nitrogen-doped reduced graphene oxide anode material for enhanced rate capability and lifespan of lithium-ion batteries

Ultrafine VN quantum dots modified with a nitrogen-doped reduced graphene oxide anode material for enhanced rate capability and lifespan of lithium-ion batteries

Development of PANI/FeS2/MnO2 Composite Electrode Materials for High‐Performance Supercapacitors

Freestanding carbon‐based hybrid anodes for flexible supercapacitors: Part I—An inclusive outlook on current collectors and configurations

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Development of PANI/FeS₂/MnO₂ Composite Electrode Materials for High‐Performance Supercapacitors