2021
DOI: 10.1103/physrevapplied.15.064042
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Electrochemical Charge Storage Behavior of Various NiCo2S4 Hierarchical Microstructures

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Cited by 5 publications
(2 citation statements)
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“…44,81,106–109 However, we find that the contribution ratio of these two kinds of electrochemical behavior for NCSs is significantly influenced by the micro-/nano-structures of NCSs. The electrochemical performance of four types of NiCo 2 S 4 hierarchical structures assembled from similar nanorod building blocks was investigated, 110 and it was indicated that the hat/flower-like structures with a compact packaging way showed unclear CV redox peaks and GCD discharge platforms, suggesting that the diffusion-controlled process was limited and the capacity was mainly from the surface electrochemical process. In contrast, sphere/brush-like structures with a loose and orderly assembly way presented more obvious CV redox peaks and GCD discharge platforms, revealing a higher utilization of active materials from the increased contribution of diffusion-controlled faradaic reactions in the inner part of the electrode, and thus they had larger capacity.…”
Section: Applications Of Ncss In Energy Storage Devicesmentioning
confidence: 99%
See 1 more Smart Citation
“…44,81,106–109 However, we find that the contribution ratio of these two kinds of electrochemical behavior for NCSs is significantly influenced by the micro-/nano-structures of NCSs. The electrochemical performance of four types of NiCo 2 S 4 hierarchical structures assembled from similar nanorod building blocks was investigated, 110 and it was indicated that the hat/flower-like structures with a compact packaging way showed unclear CV redox peaks and GCD discharge platforms, suggesting that the diffusion-controlled process was limited and the capacity was mainly from the surface electrochemical process. In contrast, sphere/brush-like structures with a loose and orderly assembly way presented more obvious CV redox peaks and GCD discharge platforms, revealing a higher utilization of active materials from the increased contribution of diffusion-controlled faradaic reactions in the inner part of the electrode, and thus they had larger capacity.…”
Section: Applications Of Ncss In Energy Storage Devicesmentioning
confidence: 99%
“…In contrast, sphere/brush-like structures with a loose and orderly assembly way presented more obvious CV redox peaks and GCD discharge platforms, revealing a higher utilization of active materials from the increased contribution of diffusion-controlled faradaic reactions in the inner part of the electrode, and thus they had larger capacity. 110 Moreover, NCSs and their composites are commonly in situ grown on planar substrates ( e.g. , carbon cloth, Ni foam and metal meshes), and they usually show clear battery-like behavior, 58,81 but when the planar substrates are changed into ultrathin metal wires with a diameter on a scale of tens of micrometers and a high aspect ratio (Fig.…”
Section: Applications Of Ncss In Energy Storage Devicesmentioning
confidence: 99%