Fundamentals, advances and challenges of transition metal compounds-based supercapacitors

Chemical Engineering Journal, Journal Year: 2021, Volume and Issue: 412, P. 128611 - 128611

Published: Jan. 24, 2021

Language: Английский

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Co9S8/NiCo2S4 core-shell array structure cathode hybridized with PPy/MnO2 core-shell structure anode for high-performance flexible quasi-solid-state alkaline aqueous batteries

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 434, P. 134640 - 134640

Published: Jan. 19, 2022

Language: Английский

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Surface Engineering of Ni wires and Rapid Growth Strategy of Ni‐MOF Synergistically Contribute to High‐Performance Fiber‐Shaped Aqueous Battery

Small, Journal Year: 2022, Volume and Issue: 18(42)

Published: Sept. 2, 2022

The fiber-shaped aqueous battery (FSAB) has the advantages of flexibility, portability and safety making it promising for energy storage applications. In particular, FSABs based on metal wire current collectors with good electrical conductivity can provide excellent properties. However, low adhesion caused by smooth surface unavailability many electrochemically active materials use in FSAB is holding back their development. Herein, a substrate effectively constructed strongly applicable growth material via Ni etching strategy. addition, core-shell structured nanorod arrays consisting NiCo2 O4 Ni-metal-organic frameworks (MOFs) are constructed, where Ni-MOF be obtained rapidly β-Ni(OH)2 intermediates. NCO/NM-15 electrode structural regulation exhibits high capacity outstanding cycling stability. De calculations further demonstrate that formation heterostructures results significant increase Fermi level leading to more internal electrons, which facilitates electron transfer electrochemical reactions. An assembled device an density 158.33 µWh cm-2 devices power calculator electronic watch screen, demonstrating wide application prospect field storage.

Language: Английский

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In-situ etching and ion exchange induced 2D-2D MXene@Co9S8/CoMo2S4 heterostructure for superior Na+ storage

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 451, P. 138508 - 138508

Published: Aug. 5, 2022

Language: Английский

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Polypyrrole embedded in nickel-cobalt sulfide nanosheets grown on nickel particles passivated silicon nanowire arrays for high-performance supercapacitors

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 461, P. 141745 - 141745

Published: Feb. 6, 2023

Language: Английский

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Synergistic enhancement of supercapacitor performance: Modish designation of BPQD modified NiCo-LDH/NiCo2S4 hybrid nanotube arrays with improved conductivity and OH– adsorption

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 484, P. 149591 - 149591

Published: Feb. 14, 2024

Language: Английский

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Sandwich-like high-performance Ti3C2Tx MXene/NiCo2O4 nanosphere composites for asymmetric supercapacitor application

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 86, P. 111097 - 111097

Published: March 7, 2024

Language: Английский

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Nano‐Au‐decorated hierarchical porous cobalt sulfide derived from ZIF‐67 toward optimized oxygen evolution catalysis: Important roles of microstructures and electronic modulation

Carbon Energy, Journal Year: 2024, Volume and Issue: 6(5)

Published: Jan. 3, 2024

Abstract Enhancing both the number of active sites available and intrinsic activity Co‐based electrocatalysts simultaneously is a desirable goal. Herein, ZIF‐67‐derived hierarchical porous cobalt sulfide decorated by Au nanoparticles (NPs) (denoted as HP‐Au@Co x S y @ZIF‐67) hybrid synthesized low‐temperature sulfuration treatment. The well‐defined macroporous–mesoporous–microporous structure obtained based on combination polystyrene spheres, as‐formed Co nanosheets, ZIF‐67 frameworks. This novel three‐dimensional significantly enlarges three‐phase interfaces, accelerating mass transfer exposing centers for oxygen evolution reaction. electronic modulated through charge transfer, series experiments, together with theoretical analysis, performed to ascertain modulation Au. Meanwhile, @ZIF‐67 catalysts different amounts were synthesized, wherein NaBH 4 reductant result in an interesting “competition effect” regulate relative ratio 2+ /Co 3+ , moderate assists electrochemical performance reach highest value. Consequently, optimized exhibits low overpotential 340 mV at 10 mA cm –2 Tafel slope 42 dec –1 OER 0.1 M aqueous KOH, enabling efficient water splitting Zn–air battery performance. work here highlights pivotal roles microstructural enhancing electrocatalytic presents feasible strategy designing optimizing advanced electrocatalysts.

Language: Английский

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Advanced strategies for enhancing electrochemical performance of NiAl LDH electrodes in supercapacitors

Coordination Chemistry Reviews, Journal Year: 2025, Volume and Issue: 531, P. 216497 - 216497

Published: Feb. 10, 2025

Language: Английский

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Construction of layered micro-/nano-structured MoNiCo-S cathode and broad bean shell derived carbon anode for hybrid supercapacitors

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 684, P. 262 - 276

Published: Jan. 14, 2025

Language: Английский

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