Assembly of flower-like Mn3O4/NiCo-LDH@carbon nanotube nanocomposites on Ni foam for binder-free capacitor electrode

Yang, Yingzhen; Chen, Songyang; Jiang, Chenjia; Wang, Ningya; Yang, Panxiang; Liu, Mengxiao; Cheng, Yao

doi:10.1016/j.jallcom.2022.167466

Cited by 10 publications

(2 citation statements)

References 44 publications

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“…In Figure 7 b–d, it is observed that the charge–discharge time of the fabricated Mn 3 O 4 @NPC/CC electrodes decreased as the current density increased, indicating that a shorter time was required for the charging and discharging processes. The shape of the charge–discharge curve resembles a triangle, which indicates a better Coulombic efficiency [ 48 ]. At a current density of 1 A g −1 , the discharge times of the Mn 3 O 4 @NPC/CC electrodes prepared with low, middle, and high P-dopant amounts were 382.8 s, 381 s, and 515.1 s, respectively ( Figure 7 e).…”

Section: Resultsmentioning

confidence: 99%

Boosting the Capacitive Performance of Supercapacitors by Hybridizing N, P-Codoped Carbon Polycrystalline with Mn3O4-Based Flexible Electrodes

Kang¹,

Yang²

2023

Nanomaterials

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Chitosan, a biomass raw material, was utilized as a carbon skeleton source and served as a nitrogen (N) atom dopant in this study. By co-doping phosphorus (P) atoms from H3PO4 and nitrogen (N) atoms with a carbon (C) skeleton and hybridizing them with Mn3O4 on a carbon fiber cloth (CC), an Mn3O4@NPC/CC electrode was fabricated, which exhibited an excellent capacitive performance. The N, P-codoped carbon polycrystalline material was hybridized with Mn3O4 during the chitosan carbonization process. This carbon polycrystalline structure exhibited an enhanced conductivity and increased mesopore content, thereby optimizing the micropore/mesopore ratio in the electrode material. This optimization contributed to the improved storage, transmission, and diffusion of electrolyte ions within the Mn3O4@NPC electrode. The electrochemical behavior was evaluated via cyclic voltammetry and galvanostatic charge–discharge tests using a 1 M Na2SO4 electrolyte. The capacitance significantly increased to 256.8 F g−1 at 1 A g−1, and the capacitance retention rate reached 97.3% after 5000 charge/discharge cycles, owing to the higher concentration of the P-dopant in the Mn3O4@NPC/CC electrode. These findings highlight the tremendous potential of flexible supercapacitor electrodes in various applications.

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Section: Resultsmentioning

confidence: 99%

Boosting the Capacitive Performance of Supercapacitors by Hybridizing N, P-Codoped Carbon Polycrystalline with Mn3O4-Based Flexible Electrodes

Kang¹,

Yang²

2023

Nanomaterials

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“…3, electrodes based on Ni materials and carbon nanomaterials are prominent keywords. Recently, nanocomposites of Ni materials with carbon nanomaterials as supercapacitor electrodes such as NiCo 2 S 4 /graphene, 6 Ni(OH) 2 /graphene, 7 NiCo 2 O 4 /graphene, 8,9 Ni-Co/graphene, [10][11][12][13][14][15][16][17] NiMoO 4 /graphene, [18][19][20] Ni(OH) 2 /CNTs, 21,22 Ni-Co/CNTs, [23][24][25] NiCo 2 S 4 /CNTs, [26][27][28][29] Ni-Co/porous carbon, 30 NiCo 2 S 4 /porous carbon, 31 NiCo 2 O 4 //AC, 32 Ni-Co//AC, [33][34][35][36] Ni(OH) 2 //AC, 37 and other materials have been developed.…”

Section: Introductionmentioning

confidence: 99%

Recent advances in Ni-materials/carbon nanocomposites for supercapacitor electrodes

Pour,

Fard,

Aval

et al. 2023

Mater. Adv.

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Spherical SiO2 growth on LaFeO3 perovskite to create core–shell structures for Cd(II) adsorption on its surface

Arman

Ramadan

2023

J Mater Sci: Mater Electron

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In this study, LaFeO3 perovskite is synthesized by the flash method, and then a simple method is developed for growing SiO2 on its surface to construct a core/shell nanocomposite. The thickness of the SiO2 shell is controlled by varying the amount of tetra-ethyl orthosilicate (TEOS). Two LaFeO3@SiO2 samples with varying SiO2 thicknesses were synthesized. Herein, the lattice parameters, morphology, magnetic, and adsorption properties of the investigated core/shell nanocomposites are tuned by changing the content of SiO2. Results confirm that when the content of SiO2 increased, the prepared LaFeO3@SiO2 core/shell nanocomposite showed good adsorption performance, and the removal efficiency enhanced from 50 to 60% for LaFeO3 and LaFeO3@SiO2, respectively. It is thought that the enhancement of the adsorption performance is related to the high porosity and amorphous nature of SiO2.

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Assembly of flower-like Mn3O4/NiCo-LDH@carbon nanotube nanocomposites on Ni foam for binder-free capacitor electrode

Cited by 10 publications

References 44 publications

Boosting the Capacitive Performance of Supercapacitors by Hybridizing N, P-Codoped Carbon Polycrystalline with Mn3O4-Based Flexible Electrodes

Boosting the Capacitive Performance of Supercapacitors by Hybridizing N, P-Codoped Carbon Polycrystalline with Mn3O4-Based Flexible Electrodes

Recent advances in Ni-materials/carbon nanocomposites for supercapacitor electrodes

Spherical SiO2 growth on LaFeO3 perovskite to create core–shell structures for Cd(II) adsorption on its surface

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