Carbon-coated NiMn layered double hydroxides/Ni3S2 nanocomposite for high performance supercapacitors

He, Yezeng; Liu, Didi; Zhao, Houqiang; Wang, Jiemei; Sui, Yanwei; Qi, Jiqiu; Chen, Zheng; Zhang, Ping; Chen, Changjiu; Zhuang, Dongdong

doi:10.1016/j.est.2021.103003

Cited by 84 publications

(9 citation statements)

References 48 publications

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“…One note is that the FeCo2S4@Co(OH)2 electrode has good comprehensive performance. Co-Fe hydroxide Hydrothermal 3340 mF cm −2 (1 mA cm −2 ) 85.1% (4000) [41] nickel-cobalt hydroxide Electrodeposition 1133.3 mF cm −2 (1 mA cm −2 ) 80.47% (2000) [42] Co2(CO3)(OH)2 Hydrothermal 2111 mF cm −2 (20 mA cm −2 ) 91.7% (1000) [43] NiCo2S4@Ni−Mn hydroxide Hydrothermal 1740 mF cm −2 (1 mA cm −2 ) 88.3% (1000) [44] C/NiMn-LDH/Ni3S2 Hydrothermal + electrodeposition 3490 mF cm −2 (2 mA cm −2 ) 84.25% (5000) [45] CuO@CoFe-LDH Etching + calcination + electrodeposition 866 mF cm −2 (2.5 mA cm −2 ) 96.2% (1000) [46] Co3S4@Ni3S4 Hydrothermal 3600 mF cm −2 (0.8 mA cm −2 ) 80% (5000) [47] FeCo2S4@Co(OH)2 Hydrothermal + electrodeposition 6169.2 mF cm −2 (1 mA cm −2 ) 95.7% (5000) This work…”

Section: Resultsmentioning

confidence: 99%

Reef-like Co(OH)2-coated FeCo2S4 on Ni Foam as a Cathode for High-performance Aqueous Super Capacitors

2022

JRSE

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In this paper, a superior independent electrode of reef-like Co(OH)2-coated FeCo2S4 (FeCo2S4@Co(OH)2) prepared on Ni foam by two-step hydrothermal synthesis (FeCo2S4) and electrodeposition (Co(OH)2) is reported. A higher capacitor of 6169.2 mF cm −2 is produced at 1 mA cm −2 . The aqueous asymmetric supercapacitors (AASCs) exhibit an energy density of 0.377 mWh cm −2 at 0.8 mW cm −2 and maintain capacity retention of 80.56% even after the 20000 cycles at 10 mA cm −2 . In view of its good properties and superficial formulation, we conceive that this research could render valuable exploration for the development of high-performance self-supporting electrodes applicable in AASCs.

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Section: Resultsmentioning

confidence: 99%

Reef-like Co(OH)2-coated FeCo2S4 on Ni Foam as a Cathode for High-performance Aqueous Super Capacitors

2022

JRSE

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“…[ 98 ] He et al synthesized a C/NiMn‐LDH/Ni 3 S 2 hybrid on the nickel foam (NF) the hydrothermal and electrodeposition method (Figure 7n). [ 99 ] This special structure accelerated the electrolyte penetration and ion diffusion and guarantee the structure stability, thus providing a higher rate performance and cycling stability (Figure 7o–q). The aforementioned strategies offered simple, economical, environmentally friendly and efficient construction concepts for high‐performance SCs from different directions.…”

Section: Modification Strategies On Ldhsmentioning

confidence: 99%

Section: Modification Strategies On Ldhsmentioning

confidence: 99%

“…o) Specific capacitance, p) EIS results, and q) cycling stability of various electrodes. [99] Copyright 2021, MXene could strengthen the chemical connection between MXene and LDHs, thus enhancing the electron transfer and ion diffusion rates when comparing with mechanical mixed MXene and NiMn-LDH composites. Ultimately, the NiMn-LDH/MXene hybrid displayed excellent specific capacitance (Figure 8b).…”

Section: Internal Stability Enhancementmentioning

confidence: 99%

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Modification Strategies of Layered Double Hydroxides for Superior Supercapacitors

Zhang

Cao

Zhang

et al. 2022

Adv Energy and Sustain Res

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Layered double hydroxides (LDHs), as classic 2D materials, have received worldwide attention in electrochemical energy storage devices due to its superior ion insertion rate and ultrahigh specific capacitance. However, the poor conductivity, severe aggregation limited capacitance, and unsatisfied internal stability have become the main factors hinder its further development as the electrode of supercapacitor. In recent years, various strategies on the modification of the LDHs’ structure, composition, properties, and fabrication have been demonstrated to effectively improve their electrochemical performance, and fruitful achievements have been made. However, there is a lack of systematic summary on the functional mechanisms and effects of various modification strategies. Herein, this review gives a comprehensive introduction of the modification strategies based on LDHs for superior supercapacitor, including active metal ions adjustment, intercalated ions adjustment, morphology optimization, conductivity enhancement and internal stability enhancement. Particularly, an in‐depth and fundamental understanding on the effects and mechanisms of modification on LDHs’ electrochemical properties and performance. Furthermore, the general performance metrics of above strategies, the potential directions and perspectives for further research are proposed.

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Recent Trends in Supercapacitor Research: Sustainability in Energy and Materials

Chernysheva,

Smirnova,

Ananikov

2024

ChemSusChem

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Supercapacitors (SCs) have emerged as critical components in applications ranging from transport to wearable electronics due to their rapid charge‐discharge cycles, high power density, and reliability. This review offers an analysis of recent strides in supercapacitor research, emphasizing pivotal developments in sustainability, electrode materials, electrolytes, and 'smart SCs' designed for modern microelectronics with attributes such as flexibility, stretchability, and biocompatibility. Central to this discourse are two dominant electrode materials: carbon materials (CMs), primarily in Electric Double Layer Capacitors (EDLCs), and pseudocapacitive materials, involving oxides/hydroxides, chalcogenides, metal‐organic frameworks, conductive polymers and metal nitrides such as MXene. Despite EDLCs' historical use, challenges such as low energy density persist, with heteroatom introduction into the carbon lattice posed as a solution. Concurrently, pseudocapacitive materials dominate recent studies, with efficiency enhancement strategies, such as the creation of hybrids based on different types of materials, surface structural engineering and doping, under exploration. Emphasis is given to smart SCs with novel attributes such as self‐charging, self‐healing, biocompatibility, and environmentally conscious designs. In summary, the article underscores the drive in sustainable supercapacitor research to achieve high energy and power density, steering towards SCs that are efficient and versatile and involving bioderived/biocompatible SC materials.

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Carbon-coated NiMn layered double hydroxides/Ni3S2 nanocomposite for high performance supercapacitors

Cited by 84 publications

References 48 publications

Reef-like Co(OH)2-coated FeCo2S4 on Ni Foam as a Cathode for High-performance Aqueous Super Capacitors

Reef-like Co(OH)2-coated FeCo2S4 on Ni Foam as a Cathode for High-performance Aqueous Super Capacitors

Modification Strategies of Layered Double Hydroxides for Superior Supercapacitors

Recent Trends in Supercapacitor Research: Sustainability in Energy and Materials

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