Decoration NiCo2S4 nanoflakes onto Ppy nanotubes as core-shell heterostructure material for high-performance asymmetric supercapacitor

Zheng, Yayun; Xu, Jie; Yang, Xiaohui; Zhang, Yingjiu; Shang, Yuanyuan; Hu, Xiaoyang

doi:10.1016/j.cej.2017.09.155

Cited by 218 publications

(56 citation statements)

References 61 publications

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“…The improved specific capacity and rate performance of the N,S-CQDs/NiCo 2 S 4 electrode originate from the positive synergistic effect between highly conductive N,S-CQDs with the capacitive feature and high-capacity NiCo 2 S 4 with Faradaic characteristic. Note that the specific capacity and rate performance of the as-obtained N,S-CQDs/NiCo 2 S 4 composite are comparable or even higher than those of nickel cobalt sulfide-based composite as reported in the literature [46][47][48][49][50][51][52][53]. The cycling property of the NiCo 2 S 4 and N,S-CQDs/NiCo 2 S 4 electrodes was surveyed by the repeated GCD tests at 5 A g −1 in the potential range of 0-0.5 V over 5000 cycles, as exhibited in Fig.…”

Section: Physicochemical and Electrochemical Characterizations Of Thesupporting

confidence: 64%

Graphitic Carbon Quantum Dots Modified Nickel Cobalt Sulfide as Cathode Materials for Alkaline Aqueous Batteries

et al. 2020

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HIGHLIGHTS • The scalable graphitic carbon quantum dots (CQDs) are obtained with a high yield of more than 50%. • The CQDs are utilized to synthesize novel NS-CQDs/NiCo 2 S 4 composite which shows enhanced electrochemical properties. • The assembled novel alkaline aqueous battery delivers superior electrochemical performances. ABSTRACT Carbon quantum dots (CQDs) as a new class of emerging materials have gradually drawn researchers' concern in recent years. In this work, the graphitic CQDs are prepared through a scalable approach, achieving a high yield with more than 50%. The obtained CQDs are further used as structure-directing and conductive agents to synthesize novel N,S-CQDs/ NiCo 2 S 4 composite cathode materials, manifesting the enhanced electrochemical properties resulted from the synergistic effect of highly conductive N,S-codoped CQDs offering fast electronic transport and unique micro-/nanostructured NiCo 2 S 4 microspheres with Faradaic redox characteristic contributing large capacity. Moreover, the nitrogen-doped reduced graphene oxide (N-rGO)/Fe 2 O 3 composite anode materials exhibit ultrahigh specific capacity as well as significantly improved rate property and cycle performance originating from the high-capacity prism-like Fe 2 O 3 hexahedrons tightly wrapped by highly conductive N-rGO. A novel alkaline aqueous battery assembled by these materials displays a specific energy (50.2 Wh kg −1), ultrahigh specific power (9.7 kW kg −1) and excellent cycling performance with 91.5% of capacity retention at 3 A g −1 for 5000 cycles. The present research offers a valuable guidance for the exploitation of advanced energy storage devices by the rational design and selection of battery/capacitive composite materials.

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Section: Physicochemical and Electrochemical Characterizations Of Thesupporting

confidence: 64%

Graphitic Carbon Quantum Dots Modified Nickel Cobalt Sulfide as Cathode Materials for Alkaline Aqueous Batteries

et al. 2020

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“…It can reach a maximum energy density of 51.3 Wh kg -1 at a power density of 4 kW kg -1 , which is much higher than many of those reported in literature for the hybrid supercapacitors as summarized in Table 3. [51][52][53][54][55][56][57] These results clearly demonstrate the high-performance of Ni/Ni(HCO 3 ) 2 -on-C//S-PCS asymmetric supercapacitor, indicating its potential practically applications.…”

Section: Electrochemical Performances Of Ni/ni(hco 3 ) 2 -On-c//s-pcsmentioning

confidence: 56%

Bioinspired sea-sponge nanostructure design of Ni/Ni(HCO₃)₂-on-C for a supercapacitor with a superior anti-fading capacity

Wen

et al. 2018

J. Mater. Chem. A

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“… 68.9% Wh kg −1 89.2% (10 000) (30) [ 143 ] 10. Ppy@NiCo2S4//N-C 2 M KOH 0–0.5 908.1 F g −1 1 A g −1 ), 50.82 Wh kg −1 126.6% (2000) [ 144 ] 11. PVA/PEDOT//rGO, 1 A g −1 in 1 M KOH (1.0 to 1.6 V 113.48 F g −1 at 5 mV s −1 21.45 Wh kg −1 83% (5000) [ 140 ] …”

Section: Applications Of π-Conjugated Polymer-based Materialsmentioning

confidence: 99%

A review of π-conjugated polymer-based nanocomposites for metal-ion batteries and supercapacitors

et al. 2021

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Owing to their extraordinary properties of π-conjugated polymers (π-CPs), such as light weight, structural versatility, ease of synthesis and environmentally friendly nature, they have attracted considerable attention as electrode material for metal-ion batteries (MIBs) and supercapacitors (SCPs). Recently, researchers have focused on developing nanostructured π-CPs and their composites with metal oxides and carbon-based materials to enhance the energy density and capacitive performance of MIBs and SCPs. Also, the researchers recently demonstrated various novel strategies to combine high electrical conductivity and high redox activity of different π-CPs. To reflect this fact, the present review investigates the current advancements in the synthesis of nanostructured π-CPs and their composites. Further, this review explores the recent development in different methods for the fabrication and design of π-CPs electrodes for MIBs and SCPs. In review, finally, the future prospects and challenges of π-CPs as an electrode materials for strategies for MIBs and SCPs are also presented.

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Decoration NiCo2S4 nanoflakes onto Ppy nanotubes as core-shell heterostructure material for high-performance asymmetric supercapacitor

Cited by 218 publications

References 61 publications

Graphitic Carbon Quantum Dots Modified Nickel Cobalt Sulfide as Cathode Materials for Alkaline Aqueous Batteries

Graphitic Carbon Quantum Dots Modified Nickel Cobalt Sulfide as Cathode Materials for Alkaline Aqueous Batteries

Bioinspired sea-sponge nanostructure design of Ni/Ni(HCO₃)₂-on-C for a supercapacitor with a superior anti-fading capacity

A review of π-conjugated polymer-based nanocomposites for metal-ion batteries and supercapacitors

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Decoration NiCo2S4 nanoflakes onto Ppy nanotubes as core-shell heterostructure material for high-performance asymmetric supercapacitor

Cited by 218 publications

References 61 publications

Graphitic Carbon Quantum Dots Modified Nickel Cobalt Sulfide as Cathode Materials for Alkaline Aqueous Batteries

Graphitic Carbon Quantum Dots Modified Nickel Cobalt Sulfide as Cathode Materials for Alkaline Aqueous Batteries

Bioinspired sea-sponge nanostructure design of Ni/Ni(HCO3)2-on-C for a supercapacitor with a superior anti-fading capacity

A review of π-conjugated polymer-based nanocomposites for metal-ion batteries and supercapacitors

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Bioinspired sea-sponge nanostructure design of Ni/Ni(HCO₃)₂-on-C for a supercapacitor with a superior anti-fading capacity