Hydrothermal synthesis of nickel foam-supported spinel ZnNi2O4 nanostructure as electrode materials for supercapacitors

Koudahi, Masoud Foroutan; Naji, Leila

doi:10.1016/j.electacta.2022.141314

Cited by 8 publications

(4 citation statements)

References 56 publications

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“…Any remaining oxides that might have been present on the sample surfaces were completely removed using the technique. The samples were then moved to a solution made of 100% ethanol, and they underwent an additional 10 min of ultrasonication [82].…”

Section: Synthesis Of Fe@nico 2 O 4 /Nfmentioning

confidence: 99%

Controllable Synthesis of Fe2O3/Nickel Cobaltite Electrocatalyst to Enhance Oxidation of Small Molecules

Alamro,

Medany,

Al-Kadhi

et al. 2024

Catalysts

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Nickel-based catalysts have been widely recognized as highly promising electrocatalysts for oxidation. Herein, we designed a catalyst surface based on iron oxide electrodeposited on NiCo2O4 spinel oxide. Nickel foam was used as a support for the prepared catalysts. The modified surface was characterized by different techniques like electron microscopy and X-ray photon spectroscopy. The activity of the modified surface was investigated through the electrochemical oxidation of different organic molecules such as urea, ethanol, and ethylene glycol. Therefore, the modified Fe@ NiCo2O4/NF current in 1.0 M NaOH and 1.0 M fuel concentrations reached 31.4, 27.1, and 17.8 mA cm−2 for urea, ethanol, and ethylene glycol, respectively. Moreover, a range of kinetic characteristics parameters were computed, such as the diffusion coefficient, Tafel slope, and transfer coefficient. Chronoamperometry was employed to assess the electrode’s resistance to long-term oxidation. Consequently, the electrode’s activity exhibited a reduction ranging from 17% to 30% over a continuous oxidation period of 300 min.

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Section: Synthesis Of Fe@nico 2 O 4 /Nfmentioning

confidence: 99%

Controllable Synthesis of Fe2O3/Nickel Cobaltite Electrocatalyst to Enhance Oxidation of Small Molecules

Alamro,

Medany,

Al-Kadhi

et al. 2024

Catalysts

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“…These methods are attracting a growing interest because they ensure low costs and scalability of materials processing, and are suitable for the production of various nanostructured materials on an industrial scale. In the bottom-up approach, individual atoms or molecules are combined into larger objects using gas phase synthesis and wet chemical methods, which include inert gas condensation [ 90 ], physical/chemical vapor condensation [ 91 ], electrodeposition [ 92 ], electroless deposition or galvanic displacement (cementation) processes [ 93 , 94 ], co-precipitation [ 95 ], sol–gel [ 96 , 97 ], solution combustion synthesis [ 98 ], hydrothermal [ 97 , 99 ], spray pyrolysis [ 100 ], thermal evaporation [ 101 ], and plasma synthesis techniques [ 102 ].…”

Section: Introductionmentioning

confidence: 99%

“…Extensive research on nanostructured materials and their characterization have shown their uniqueness and advantages for applications in various fields of science and engineering including chemistry, physics, biology, biotechnology, and medicine. Typical applications are related to electrochemical energy conversion and storage [ 100 , 107 , 108 ], including lithium-based batteries [ 109 ], supercapacitors [ 99 , 110 ], and fuel cells [ 111 ]. Energy-related applications of nanostructured materials cover also electrochromic energy storage systems [ 112 ], solar cells, and photovoltaics [ 113 ] as well as thermoelectric systems and devices [ 114 ].…”

Section: Introductionmentioning

confidence: 99%

Electrochemistry of Thin Films and Nanostructured Materials

Sulka

2023

Molecules

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In the last few decades, the development and use of thin films and nanostructured materials to enhance physical and chemical properties of materials has been common practice in the field of materials science and engineering. The progress which has recently been made in tailoring the unique properties of thin films and nanostructured materials, such as a high surface area to volume ratio, surface charge, structure, anisotropic nature, and tunable functionalities, allow expanding the range of their possible applications from mechanical, structural, and protective coatings to electronics, energy storage systems, sensing, optoelectronics, catalysis, and biomedicine. Recent advances have also focused on the importance of electrochemistry in the fabrication and characterization of functional thin films and nanostructured materials, as well as various systems and devices based on these materials. Both cathodic and anodic processes are being extensively developed in order to elaborate new procedures and possibilities for the synthesis and characterization of thin films and nanostructured materials.

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“…Zhao et al [20] reviewed 2D Co-based electrode materials (MCo 2 O 4 , M = Co, Fe, Cu, Ni, Zn, and Mn) for SCs, and these materials show the C s between 400-3294.3 F g − 1 at a CD of 1 A g − 1 . Koudahi et al [21] developed a spinel-type ZnNi 2 O 4 /NF electrode, and a C s of 235 C g − 1 was obtained at 1 A g − 1 . Unfortunately, bimetallic oxides demonstrate poor electrical conductivity, however bimetallic sul des possess larger SSA and more abundant EAS and show better electrochemical performance [22][23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Controllable synthesis of spherical S@CoMn2O4 battery-type electrode material for hybrid supercapacitors

Lv,

Min,

Liu

et al. 2023

Preprint

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A novel spherical Co-Mn composite -CoMn2O4 was synthesized via a one-step solvothermal method, and S doping CoMn2O4 (S@CoMn2O4) battery-type electrode material was further obtained via a hydrothermal vulcanization. This ion exchange technique is mainly carried out on the surface of the material and will not destroy the morphology of the original oxide-MOF, so the obtained materials generally have a core-shell structure. The S@CoMn2O4 not only remains a spherical character, but also possesses a coarser surface and porous structure, which considerably increases the specific surface areas (SSA) and electrochemical active sites (EAS) for electrode materials, thus facilitating the charge transfer kinetics for ions and electrons. When the current density (CD) is 1 A g-1, the specific capacity (Cs) of S@CoMn2O4 is 812 C g-1. Moreover, S@CoMn2O4 has excellent electrochemical cycling performance, and the retention rate of Cs for the S@CoMn2O4 reach 92.91% after 5000 cycles at 10 A g-1. When the specific power (Ps) is 775 W kg-1, the specific energy (Es) for S@CoMn2O4//AC device reaches 44.36 Wh kg-1.

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Hydrothermal synthesis of nickel foam-supported spinel ZnNi2O4 nanostructure as electrode materials for supercapacitors

Cited by 8 publications

References 56 publications

Controllable Synthesis of Fe2O3/Nickel Cobaltite Electrocatalyst to Enhance Oxidation of Small Molecules

Controllable Synthesis of Fe2O3/Nickel Cobaltite Electrocatalyst to Enhance Oxidation of Small Molecules

Electrochemistry of Thin Films and Nanostructured Materials

Controllable synthesis of spherical S@CoMn2O4 battery-type electrode material for hybrid supercapacitors

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