High mass loading porous CoNi<sub>2</sub>S<sub>4</sub> nanosheets with ultrahigh areal capacity for flexible supercapacitors

Chen, Qian; Wu, Ziqiang; Zhu, Lili; Li, Changdian; Zhu, Xuebin; Sun, Yuping

doi:10.1039/d3ta05970g

J. Mater. Chem. A

2024

DOI: 10.1039/d3ta05970g

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High mass loading porous CoNi₂S₄ nanosheets with ultrahigh areal capacity for flexible supercapacitors

Qian Chen,

Ziqiang Wu,

Lili Zhu

et al.

Abstract: A commercial-level mass loading of a 3D porous network CoNi2S4 electrode with ultrahigh areal capacity was successfully achieved through the electrodeposition–hydrothermal two-step method.

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Cited by 8 publications

References 62 publications

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Ternary Metal Sulfides as Electrode Materials for Na/K‐Ion Batteries and Electrochemical Supercapacitor: Advances/Challenges and Prospects

Pramanik,

Sengupta,

Saju

et al. 2024

Advanced Energy Materials

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Ternary metal sulfides (TMSs) have garnered significant attention as alternative electrode materials for rechargeable metal‐ion battery anodes and electrodes for electrochemical supercapacitors (SCs). With the escalating costs of lithium, research has shifted toward alternative sources like sodium‐ion batteries (NIBs) and potassium‐ion batteries (KIBs), offering cost‐effectiveness and greater natural abundance globally. However, pursuing suitable electrode materials beyond lithium‐ion batteries (LIBs), such as NIBs, KIBs, and SCs with enhanced energy and power density, remains a formidable challenge. In this context, TMSs demonstrate remarkable reversibility as NIB, KIB, and SC electrode materials, showcasing multi‐electron redox reactions, improved electronic conductivity, and higher theoretical capacities. Numerous research articles have highlighted the promising future of TMSs as electrodes for electrochemical energy conversion and storage (EECS). Nonetheless, practical applications are hindered by limitations, including structural stability during long‐standing cyclability, electronic conductivity, and scalability. This review systematically demonstrates how varying synthesis routes can tailor nanostructures and their influence on electrochemical activity. Additionally, an in‐depth literature survey is provided on the electrochemical performances of TMSs in NIBs, KIBs, and SCs and summarize recent advancements with the best available literature. Moreover, promising prospects and challenges are highlighted, expressing optimism that TMSs will emerge as pivotal electrodes for EECS.

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Ternary Metal Sulfides as Electrode Materials for Na/K‐Ion Batteries and Electrochemical Supercapacitor: Advances/Challenges and Prospects

Pramanik,

Sengupta,

Saju

et al. 2024

Advanced Energy Materials

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2D‐on‐2D Al‐Doped NiCo LDH Nanosheet Arrays for Fabricating High‐Energy‐Density, Wide Voltage Window, and Ultralong‐Lifespan Supercapacitors

Huang,

Chu,

Han

et al. 2024

Small

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Battery‐type electrode materials with high capacity, wide potential windows, and good cyclic stability are crucial to breaking through energy storage limitations and achieving high energy density. Herein, a novel 2D‐on‐2D Al‐doped NiCo layered double hydroxide (NiCoAlx LDH) nanosheet arrays with high‐mass‐loading are grown on a carbon cloth (CC) substrate via a two‐step hydro/solvothermal deposition strategy, and the effect of Al doping is employed to modify the deposition behavior, hierarchical morphology, phase stability, and multi‐metallic synergistic effect. The optimized NiCoAl0.1 LDH electrode exhibits capacities of 5.43, 6.52, and 7.25 C cm−2 (9.87, 10.88, and 11.15 F cm−2) under 0–0.55, 0–0.60, and 0–0.65 V potential windows, respectively, illustrating clearly the importance of the wide potential window. The differentiated deposition strategy reduces the leaching level of Al3+ cations in alkaline solutions, ensuring excellent cyclic performance (108% capacity retention after 40 000 cycles). The as‐assembled NiCoAl0.1 LDH//activated carbon cloth (ACC) hybrid supercapacitor delivers 3.11 C cm−2 at 0–2.0 V, a large energy density of 0.84 mWh cm−2 at a power density of 10.00 mW cm−2, and excellent cyclic stability with ≈135% capacity retention after 150 000 cycles.

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High-energy flexible supercapacitors based on free-standing metal oxide electrodes for ammonium ion storage

Han,

Zhang,

Tang

et al. 2024

Journal of Energy Storage

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High mass loading porous CoNi₂S₄ nanosheets with ultrahigh areal capacity for flexible supercapacitors

Abstract: A commercial-level mass loading of a 3D porous network CoNi2S4 electrode with ultrahigh areal capacity was successfully achieved through the electrodeposition–hydrothermal two-step method.

Cited by 8 publications

References 62 publications

Ternary Metal Sulfides as Electrode Materials for Na/K‐Ion Batteries and Electrochemical Supercapacitor: Advances/Challenges and Prospects

Ternary Metal Sulfides as Electrode Materials for Na/K‐Ion Batteries and Electrochemical Supercapacitor: Advances/Challenges and Prospects

2D‐on‐2D Al‐Doped NiCo LDH Nanosheet Arrays for Fabricating High‐Energy‐Density, Wide Voltage Window, and Ultralong‐Lifespan Supercapacitors

High-energy flexible supercapacitors based on free-standing metal oxide electrodes for ammonium ion storage

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High mass loading porous CoNi2S4 nanosheets with ultrahigh areal capacity for flexible supercapacitors

Abstract: A commercial-level mass loading of a 3D porous network CoNi2S4 electrode with ultrahigh areal capacity was successfully achieved through the electrodeposition–hydrothermal two-step method.

Cited by 8 publications

References 62 publications

Ternary Metal Sulfides as Electrode Materials for Na/K‐Ion Batteries and Electrochemical Supercapacitor: Advances/Challenges and Prospects

Ternary Metal Sulfides as Electrode Materials for Na/K‐Ion Batteries and Electrochemical Supercapacitor: Advances/Challenges and Prospects

2D‐on‐2D Al‐Doped NiCo LDH Nanosheet Arrays for Fabricating High‐Energy‐Density, Wide Voltage Window, and Ultralong‐Lifespan Supercapacitors

High-energy flexible supercapacitors based on free-standing metal oxide electrodes for ammonium ion storage

Contact Info

Product

Resources

About

High mass loading porous CoNi₂S₄ nanosheets with ultrahigh areal capacity for flexible supercapacitors