NiO@CoSe<sub>2</sub> nanostructures for high-performance asymmetric supercapacitors and efficient electrocatalysts

Liu, Xingyu; Wang, Mengdi; Umar, Ahmad; Wu, Xiang

doi:10.1039/d3dt01732j

Cited by 15 publications

(1 citation statement)

References 54 publications

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“…The reaction is controlled by diffusion behaviors when b is equal (more) to 1. 36 The slope falls within the range of 0.5–1 as depicted in Fig. 4g .…”

Section: Resultsmentioning

confidence: 65%

Synthesis of urchin-like NiCo₂S₄ electrode materials based on a two-step hydrothermal method for high-capacitance supercapacitors

Tian,

Zhang,

2024

RSC Adv.

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“…The reaction is controlled by diffusion behaviors when b is equal (more) to 1. 36 The slope falls within the range of 0.5–1 as depicted in Fig. 4g .…”

Section: Resultsmentioning

confidence: 65%

Synthesis of urchin-like NiCo₂S₄ electrode materials based on a two-step hydrothermal method for high-capacitance supercapacitors

Tian,

Zhang,

2024

RSC Adv.

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MOF‐Derived Porous Carbon for Zinc‐ion Hybrid Capacitors with Ultra‐High Energy Density and Long Cycling Life

Zhang,

Wu,

Luo

2024

Batteries & Supercaps

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Zinc‐ion hybrid capacitors (ZHC) have been considered as emerging sustainable electrochemical energy storage devices. They integrate the benefits of high‐energy density of aqueous zinc ion battery (ZIB) with high‐power density of supercapacitor (SC). Metal‐organic frameworks (MOFs) have been widely used to design electrode materials for portable devices, especially in some energy storage fields because of their large specific surface area and adjustable pore structures. In this work, we prepare porous Mn3O4/C nanosheets with Mn‐BDC as a precursor. The assembled device delivers a specific capacitance of 155.3 mAh g‐1 at a current of 3 A g‐1 and keeps a retention rate of 97.7% after 10,000 cycles. Moreover, it provides an energy density of 464.5 Wh kg‐l at a power density of 100 W kg‐1.

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Growth and Characterization of NiO Thin Films for Selective Detection of Formaldehyde Vapor

Barala,

Panda,

Gangopadhyay

2024

Physica Status Solidi (a)

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The formation of nickel oxide (NiO) nanostructures using controlled thermal oxidation of thin nickel (Ni) films and their successive use as gas‐sensing materials for selective detection of low‐concentration formaldehyde vapor are discussed here. High‐purity Ni were deposited on glass/quartz substrates using a vacuum assisted electron beam (E‐beam) evaporation technique. Afterwards, thermal oxidation of these Ni thin films was conducted at various temperatures in air ambient condition. Different surface characterization techniques are employed to investigate the structure, chemistry, and electronic properties of these as‐grown oxide nanostructures. X‐ray diffraction analysis revealed that the thermal oxidation starts above 400 °C. Presence of metallic nickel peak even after oxidation at 500 °C for 5 h confirms its oxidation resistance. Increase in oxidation temperature improves the crystalline quality. Scanning electron microscopy imaging depicts an increase in particle size with oxidation temperature and a highly porous surface morphology above 800 °C. Raman spectroscopy identified the characteristic modes of NiO. UV‐Visible data exhibits a redshift in optical bandgap whereas X‐ray photoemission spectroscopy analysis reveals a gradual increase in oxygen content within the oxide layer. Finally, these NiO films show a high sensitivity and selectivity toward formaldehyde vapor sensing against a few other volatile organic compounds.

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NiO@CoSe₂ nanostructures for high-performance asymmetric supercapacitors and efficient electrocatalysts

Abstract: It is very important to design bi-functional materials for sustainable energy storage and conversion. NiO electrode is a promising candidate for supercapacitor and electrocatalyst, but the poor cycling stability limits...

Cited by 15 publications

References 54 publications

Synthesis of urchin-like NiCo₂S₄ electrode materials based on a two-step hydrothermal method for high-capacitance supercapacitors

Synthesis of urchin-like NiCo₂S₄ electrode materials based on a two-step hydrothermal method for high-capacitance supercapacitors

MOF‐Derived Porous Carbon for Zinc‐ion Hybrid Capacitors with Ultra‐High Energy Density and Long Cycling Life

Growth and Characterization of NiO Thin Films for Selective Detection of Formaldehyde Vapor

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NiO@CoSe2 nanostructures for high-performance asymmetric supercapacitors and efficient electrocatalysts

Abstract: It is very important to design bi-functional materials for sustainable energy storage and conversion. NiO electrode is a promising candidate for supercapacitor and electrocatalyst, but the poor cycling stability limits...

Cited by 15 publications

References 54 publications

Synthesis of urchin-like NiCo2S4 electrode materials based on a two-step hydrothermal method for high-capacitance supercapacitors

Synthesis of urchin-like NiCo2S4 electrode materials based on a two-step hydrothermal method for high-capacitance supercapacitors

MOF‐Derived Porous Carbon for Zinc‐ion Hybrid Capacitors with Ultra‐High Energy Density and Long Cycling Life

Growth and Characterization of NiO Thin Films for Selective Detection of Formaldehyde Vapor

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NiO@CoSe₂ nanostructures for high-performance asymmetric supercapacitors and efficient electrocatalysts

Synthesis of urchin-like NiCo₂S₄ electrode materials based on a two-step hydrothermal method for high-capacitance supercapacitors

Synthesis of urchin-like NiCo₂S₄ electrode materials based on a two-step hydrothermal method for high-capacitance supercapacitors