Heterogeneous NiS/NiO multi-shelled hollow microspheres with enhanced electrochemical performances for hybrid-type asymmetric supercapacitors

Wang, Yaping; Pan, Anqiang; Han, Min; Shi, Junrong; Lin, Jiande; Cao, Guozhong

doi:10.1039/c8ta01866a

Cited by 95 publications

(36 citation statements)

References 55 publications

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“…Hence, NiO and nickel sulfide composites can show satisfactory capacitance and desirable rate capability. Heterogenous NiO/NiS multi‐shelled hollow microspheres prepared through a template method were reported to deliver enhanced electrochemical performance 59 . Figure a also presents a feasible formation mechanism, along with the crystal interface structure of NiO|NiS.…”

Section: Multicomponent Composition To Achieve Performance Improvemenmentioning

confidence: 99%

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Approaching High‐Performance Supercapacitors via Enhancing Pseudocapacitive Nickel Oxide‐Based Materials

Wei

Mei

et al. 2020

Advanced Sustainable Systems

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Nickel oxide, as a typical pseudocapacitive material, holds great promise for boosting the energy storage capability of supercapacitors (SCs) owing to its great advantages, such as high theoretical capacitance value, low‐cost, good stability, and environmentally benign nature. Nevertheless, many obstacles, including low intrinsic conductivity and limited surfice electrochemically active sites, need to be overcome before its practical implementation. In this review, the recent advances on nickel oxide‐based electrode materials are outlined with particular attention paid to strategies for enhancing their SC performance. To begin, an introduction to the physical and chemical properties of nickel oxide and its charge storage mechanisms is presented, followed by a discussion of the obstacles to its widespread implementation and the corresponding strategies for constructing high‐performance nickel oxide‐based electrode materials. After that, recent progress in the use of organic electrolyte systems to achieve improvements in integrated device performance is highlighted. To conclude, a detailed discussion on future trends and opportunities associated with NiO‐based electrode materials for future SCs is provided.

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Section: Multicomponent Composition To Achieve Performance Improvemenmentioning

confidence: 99%

Section: Multicomponent Composition To Achieve Performance Improvemenmentioning

confidence: 99%

Approaching High‐Performance Supercapacitors via Enhancing Pseudocapacitive Nickel Oxide‐Based Materials

Wei

Mei

et al. 2020

Advanced Sustainable Systems

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“…Recently, the main strategy for the preparation of multi‐shelled NiO hollow microspheres is hard template method . The synthesis of multi‐shelled NiO was firstly accomplished in 2011 by Wang's group in virtue of carbonaceous microspheres template .…”

Section: Synthesis Of Single‐component Multi‐shelled Hollow Metal Oxidesmentioning

confidence: 99%

“…For example, Shang et al . reported NiO as well as Fe‐doped NiO multi‐shelled microspheres using isophthalic acid as ligand and N, Nedimethylformamide as solvent, respectively . However, description on the control of shell number is not mentioned.…”

Section: Synthesis Of Single‐component Multi‐shelled Hollow Metal Oxidesmentioning

confidence: 99%

Synthesis of Single‐Component Metal Oxides with Controllable Multi‐Shelled Structure and their Morphology‐Related Applications

Qin

Lan

Liu

et al. 2019

The Chemical Record

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Multi‐shelled hollow spheres metal oxides, namely materials with more than three shells, have attracted increasing attention due to their unique structure. The preparation methods of typical metal oxides including NiO, Co3O4 and ZnO etc. have been summarized in this review. Simultaneously, the parameters that influence the ultimate morphologies, shell number as well as the compositions have also been discussed. The potential application fields in energy conversion and storage, electromagnetic wave absorption, photocatalysis that related to the unique structure are also highlighted. Finally, the future researches of multi‐shelled hollow spheres metal oxides are further discussed.

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“…[36] NiS/NiO microspheres showed a high specific capacitance (1063 F g À 1 at 2 A g À 1 ). [37] However, the preparation of these materials was complicated and environmentally unfriendly, even generally releasing some toxic gases (such as PH 3 and H 2 S), which greatly limits their practical application. Most recently, NiÀ Mo alloys that could be easily fabricated were studied to be promising materials for HER in alkaline solutions.…”

Section: Introductionmentioning

confidence: 99%

Network‐Like Ni_1−xMo_x Nanosheets: Multi‐Functional Electrodes for Overall Water Splitting and Supercapacitor

et al. 2019

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Exploring efficient, abundant, cheap and stable materials for the electrolysis of water and supercapacitor is a challenging task. Here, Ni 1À x Mo x nanosheets are obtained on carbon cloth (CC), which can be multi-functional electrodes for electrochemical applications. Impressively, we find that the electrochemical abilities can be optimized by constructing network-like nanosheets and tuning the ratio of Ni and Mo in the alloy. To acquire a current density of 10 mA cm À 2 (j 10 ), Ni 0.75 Mo 0.25 /CC shows the lowest overpotentials (79 mV for hydrogen evolution reaction (HER) and 330 mV for oxygen evolution reaction (OER)) in 1 M KOH. Using Ni 0.75 Mo 0.25 /CC as both positive and negative poles, the cell only requires a potential of 1.74 V to reach j 10 and shows long-term durability. We further show that Ni 0.75 Mo 0.25 electrode exhibits a superior specific capacitance (422 F g À 1 at 1 A g À 1 ) and high capacitance retention (108.2 % after 1000 cycles) in 1 M KOH. The super-electrochemical performances of Ni 0.75 Mo 0.25 /CC is attributed to its high electronic conductivity, rich active sites, and large surface area. We believe that the Ni 0.75 Mo 0.25 /CC electrode with extraordinary electrochemical performances is a hopeful material for practical applications in both electrocatalysis and supercapacitors (SC).

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Heterogeneous NiS/NiO multi-shelled hollow microspheres with enhanced electrochemical performances for hybrid-type asymmetric supercapacitors

Abstract: Heterogeneous NiS/NiO multi-shelled hollow microspheres exhibit excellent electrochemical performances as hybrid supercapacitor electrode materials.

Cited by 95 publications

References 55 publications

Approaching High‐Performance Supercapacitors via Enhancing Pseudocapacitive Nickel Oxide‐Based Materials

Approaching High‐Performance Supercapacitors via Enhancing Pseudocapacitive Nickel Oxide‐Based Materials

Synthesis of Single‐Component Metal Oxides with Controllable Multi‐Shelled Structure and their Morphology‐Related Applications

Network‐Like Ni_1−xMo_x Nanosheets: Multi‐Functional Electrodes for Overall Water Splitting and Supercapacitor

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Heterogeneous NiS/NiO multi-shelled hollow microspheres with enhanced electrochemical performances for hybrid-type asymmetric supercapacitors

Abstract: Heterogeneous NiS/NiO multi-shelled hollow microspheres exhibit excellent electrochemical performances as hybrid supercapacitor electrode materials.

Cited by 95 publications

References 55 publications

Approaching High‐Performance Supercapacitors via Enhancing Pseudocapacitive Nickel Oxide‐Based Materials

Approaching High‐Performance Supercapacitors via Enhancing Pseudocapacitive Nickel Oxide‐Based Materials

Synthesis of Single‐Component Metal Oxides with Controllable Multi‐Shelled Structure and their Morphology‐Related Applications

Network‐Like Ni1−xMox Nanosheets: Multi‐Functional Electrodes for Overall Water Splitting and Supercapacitor

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Product

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Network‐Like Ni_1−xMo_x Nanosheets: Multi‐Functional Electrodes for Overall Water Splitting and Supercapacitor