Electrochemical Performance of Iron Oxide Nanoflakes on Carbon Cloth under an External Magnetic Field

Geng, Lei; Gao, Zenglai; Deng, Qibo

doi:10.3390/met8110939

Cited by 10 publications

(1 citation statement)

References 38 publications

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“…The peaks at 37.2° and 44.5° are correspond to iron oxide (311 plane) and iron (011 plane) phases. [ 30,33 ] All carbons have the same amorphous phases except for the presence of different phases of iron species. The nitrogen adsorption–desorption isotherms are used to measure Brunauer–Emmett–Teller (BET) surface areas and pore size distributions (DFT method) of carbons.…”

Section: Resultsmentioning

confidence: 99%

Solvothermal Synthesis and Pyrolysis Toward Heteroatom‐Doped Carbon Microspheres for Zinc‐Ion Hybrid Capacitors

Huang,

Gu,

et al. 2023

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Heteroatom‐doped porous carbon materials have investigated to promote the energy density of zinc‐ion hybrid capacitors (ZICs). Yet, the quest for high‐performance carbon materials or cathodes brings to light the question of which dopants facilitate fast energy storage kinetics and various types of pseudocapacitive reactions. Investigation of carbon materials with precise quantitative dopants as the key variable represents an effective appropriate approach to comprehending the intricate role of dopants in energy storage areas. Here, a straightforward solvothermal strategy is demonstrated for a variety of pristine and iron‐incorporated polymer microspheres, used as precursors for durable spherical carbons intended for cathode applications in ZICs. The strategy effectively governs the incorporation of dopants within the carbon materials, whilewhile maintaining consistent morphology, microtexture, and pore structure across different carbon variations. The synergistic effect of various dopants enhance the pseudocapacitance and facilitate the ion storage process. In consequence, the optimal cathode delivers considerable capacity (178.8 mAh g−1 at 0.5 A g−1), good energy density (120.2 Wh kg−1 at 336 W kg−1), and excellent cycling stability (101.5% capacity retention at 35 000 cycles). The demonstration showcases a viable method for crafting carbon materials with precise dopants to accommodate the zinc anode, thus enabling high‐capacity and high‐energy ZICs.

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Section: Resultsmentioning

confidence: 99%

Solvothermal Synthesis and Pyrolysis Toward Heteroatom‐Doped Carbon Microspheres for Zinc‐Ion Hybrid Capacitors

Huang,

Gu,

et al. 2023

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Effective Energy Storage Performance Derived from 3D Porous Dendrimer Architecture Metal Phosphides//Metal Nitride‐Sulfides

Swain,

Balasubramaniam,

Ramadoss

2024

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The present work addresses the limitations by fabricating a wide range of negative electrodes, including metal nitrides/sulfides on a 3D bimetallic conductive porous network (3D‐Ni and 3D‐NiCo) via a dynamic hydrogen bubble template (DHBT) method followed by vapour phase growth (VPG) process. Among the prepared negative electrodes, the 3D‐Fe3S4‐Fe4N/NiCo nanostructure demonstrates an impressive specific capacitance (Cs) of 1125 F g−1 (2475 mF cm−2) at 1 A g−1 with 80% capacitance retention over 5000 cycles. Similarly, a 3D‐Mn3P nanostructured positive electrode fabricated via electrodeposition followed by a phosphorization process exhibits a maximum specific capacity (Cg) of 923.04 C g−1 (1846.08 mF cm−2) at 1 A g−1 with 80% stability. A 3D‐Mn3P/Ni//3D‐Fe3S4‐Fe4N/NiCo supercapattery is also assembled, and it shows a notable CS of 151 F g−1 at 1 A g−1, as well as a high energy density (ED) of 51 Wh kg−1,a power density (PD) of 782.57 W kg−1 and a capacitance efficiency of 76% over 10 000 cycles. This may be ascribed to the use of a bimetallic 3D porous conductive template and the attachment of transition metal sulfide and nitride. The development of negative electrodes and supercapattery devices is greatly aided by this exploration of novel synthesis techniques and material choice.

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Regulating electrochemical performances of lithium battery by external physical field

Wang,

Wu,

Song

et al. 2024

Rare Met.

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Electrochemical Performance of Iron Oxide Nanoflakes on Carbon Cloth under an External Magnetic Field

Cited by 10 publications

References 38 publications

Solvothermal Synthesis and Pyrolysis Toward Heteroatom‐Doped Carbon Microspheres for Zinc‐Ion Hybrid Capacitors

Solvothermal Synthesis and Pyrolysis Toward Heteroatom‐Doped Carbon Microspheres for Zinc‐Ion Hybrid Capacitors

Effective Energy Storage Performance Derived from 3D Porous Dendrimer Architecture Metal Phosphides//Metal Nitride‐Sulfides

Regulating electrochemical performances of lithium battery by external physical field

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