High performance hybrid supercapacitor based on electrochemical deposed of nickel hydroxide on zinc oxide supported by graphite electrode

Berrabah, Salah Eddine; Smaili, Fatiha; Benchettara, A.; Mahieddine, Abdelkadir

doi:10.1016/j.jallcom.2023.169112

Cited by 20 publications

(3 citation statements)

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“…The energy density of the HSC device under illumination was superior to that under dark conditions and to that of most ZnO-based supercapacitors (Figure 9f). [32,42,[46][47][48][49][50] In addition, the electrochemical properties of the ZnO@Ce 2 S 3 /NF-based electrodes and devices were compared with those of other ZnO-based electrode materials reported previously for (photosensitive) supercapacitors, as summarized in Table S4 (Supporting Information). Figure S13 (Supporting Information) shows the EIS plots of the assembled HSC devices under dark and light conditions.…”

Section: Resultsmentioning

confidence: 99%

Heterogeneous Structures Consisting of Rod‐like ZnO Interspersed with Ce₂S₃ Nanoparticles for Photo‐Sensitive Supercapacitors with Enhanced Capacitive Performance

Long,

Li,

Luo

et al. 2023

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Photosensitive supercapacitors incorporate light‐sensitive materials on capacitive electrodes, enabling solar energy conversion and storage in one device. In this study, heterogeneous structures of rod‐shaped ZnO decorated with Ce2S3 nanoparticles on nickel foam (ZnO@Ce2S3/NF) are synthesized using a two‐step hydrothermal method as photosensitive supercapacitor electrodes for capacitance enhancement under visible light. The formation of ZnO@Ce2S3 heterogeneous structures is confirmed using various structural characterization techniques. The area‐specific capacitance of the ZnO@Ce2S3/NF composite electrode increased from 1738.1 to 1844.0 mF cm−2 after illumination under a current density of 5 mA cm−2, which is 2.4 and 2.8 times higher than that of ZnO and Ce2S3 electrodes under similar conditions, respectively, indicating the remarkable light‐induced capacitance enhancement performance. The ZnO@Ce2S3/NF electrode also exhibits a higher photocurrent and photovoltage than the two single electrodes, demonstrating its excellent photosensitivity. The improved capacitance performance and photosensitivity under illumination are attributed to the well‐constructed energy‐level structure, which stimulates the flow of photogenerated electrons from the outer circuit and the involvement of photogenerated holes in the resulting surface‐controlled capacitance. In addition, the assembled ZnO@Ce2S3/NF‐based hybrid supercapacitor exhibits a great energy density of 145.0 mWh cm−2 under illumination. This study provides a novel strategy for the development of high‐performance solar energy conversion/storage devices.

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Section: Resultsmentioning

confidence: 99%

Heterogeneous Structures Consisting of Rod‐like ZnO Interspersed with Ce₂S₃ Nanoparticles for Photo‐Sensitive Supercapacitors with Enhanced Capacitive Performance

Long,

Li,

Luo

et al. 2023

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“…Nickel hydroxide is feasible as an electrode material for supercapacitors, but its conductivity needs to be further improved and its specific surface area increased. Adding conductive substances or conductive layers to the crystalized nickel hydroxide, or doping other elements to form binary or multiple transition-metal composite hydroxides, can effectively improve the capacitance characteristics of nickel hydroxide [ 49 , 50 , 51 ]. Growing nanostructures with different morphologies is an effective way to greatly increase the specific surface area.…”

Section: Future Workmentioning

confidence: 99%

Controlling the Cooling Rate of Hydrothermal Synthesis to Enhance the Supercapacitive Properties of β-Nickel Hydroxide Electrode Materials

Hong

2023

Materials

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The demand for power storage devices with good quality, fast charging and high energy density is becoming more and more urgent in today’s electronic technology. For batteries and traditional capacitors, it is an insurmountable challenge to combine fast charging and discharging, large capacitance and long-life properties. The characteristics of supercapacitors can meet all the above requirements at the same time. In this study, a simple one-step hydrothermal method was successfully used to grow β-nickel hydroxide nanocone particles directly on the 3D foamed nickel substrate as a working electrode material for supercapacitors. After growing β-nickel hydroxide crystals on 3D foamed nickel substrate, by controlling the cooling rate, a well-crystalized β-nickel hydroxide with good capacitance characteristics can be obtained. Cyclic voltammetry (CV), galvanostatic charge–discharge (GCD) and electrochemical impedance spectroscopy (EIS) were used to analyze the capacitance characteristics of the β-nickel hydroxide electrode. The research results show that the specific capacitance value of the β-Ni(OH)2/3D nickel foam electrode material prepared at the cooling rate of 10 °C/h can reach 539 F/g with the charge–discharge test at a current density of 3 A/g. After 1000 continuous charge and discharge cycles, the material still retains 94.1% of the specific capacitance value.

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“…[9][10][11] Graphite is a versatile material that is used in a wide range of energy applications, including batteries, fuel cells, and supercapacitors. 12,13 Graphite has been widely used as a conducting ller inside the polymer matrix due to its exceptional electrical conductivity, mechanical strength, high specic surface area, high carrier mobility, and good thermal properties. 14,15 Graphite as a ller inside the polymer nanocomposite can provide a conductive path and help to improve the polymer nanocomposite's dielectric loss.…”

Section: Introductionmentioning

confidence: 99%

Optimization of CoFe₂O₄ nanoparticles and graphite fillers to endow thermoplastic polyurethane nanocomposites with superior electromagnetic interference shielding performance

Anju,

Masař,

Machovský

et al. 2024

Nanoscale Adv.

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High performance hybrid supercapacitor based on electrochemical deposed of nickel hydroxide on zinc oxide supported by graphite electrode

Cited by 20 publications

References 59 publications

Heterogeneous Structures Consisting of Rod‐like ZnO Interspersed with Ce₂S₃ Nanoparticles for Photo‐Sensitive Supercapacitors with Enhanced Capacitive Performance

Heterogeneous Structures Consisting of Rod‐like ZnO Interspersed with Ce₂S₃ Nanoparticles for Photo‐Sensitive Supercapacitors with Enhanced Capacitive Performance

Controlling the Cooling Rate of Hydrothermal Synthesis to Enhance the Supercapacitive Properties of β-Nickel Hydroxide Electrode Materials

Optimization of CoFe₂O₄ nanoparticles and graphite fillers to endow thermoplastic polyurethane nanocomposites with superior electromagnetic interference shielding performance

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High performance hybrid supercapacitor based on electrochemical deposed of nickel hydroxide on zinc oxide supported by graphite electrode

Cited by 20 publications

References 59 publications

Heterogeneous Structures Consisting of Rod‐like ZnO Interspersed with Ce2S3 Nanoparticles for Photo‐Sensitive Supercapacitors with Enhanced Capacitive Performance

Heterogeneous Structures Consisting of Rod‐like ZnO Interspersed with Ce2S3 Nanoparticles for Photo‐Sensitive Supercapacitors with Enhanced Capacitive Performance

Controlling the Cooling Rate of Hydrothermal Synthesis to Enhance the Supercapacitive Properties of β-Nickel Hydroxide Electrode Materials

Optimization of CoFe2O4 nanoparticles and graphite fillers to endow thermoplastic polyurethane nanocomposites with superior electromagnetic interference shielding performance

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Heterogeneous Structures Consisting of Rod‐like ZnO Interspersed with Ce₂S₃ Nanoparticles for Photo‐Sensitive Supercapacitors with Enhanced Capacitive Performance

Heterogeneous Structures Consisting of Rod‐like ZnO Interspersed with Ce₂S₃ Nanoparticles for Photo‐Sensitive Supercapacitors with Enhanced Capacitive Performance

Optimization of CoFe₂O₄ nanoparticles and graphite fillers to endow thermoplastic polyurethane nanocomposites with superior electromagnetic interference shielding performance