Heterostructure of metal–organic framework-derived straw-bundle-like CeO2 decorated with (Ni, Co)3S4 nanosheets for high-performance supercapacitor

Xue, Zhigao; Yang, Chao; Tao, Kai; Han, Lei

doi:10.1016/j.apsusc.2022.153231

Cited by 44 publications

(6 citation statements)

References 59 publications

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“…The peaks at 529.8, 530.8, 531.9, and 533 eV are ascribed to lattice oxygen (O I ), surface −OH species (O II ), C�O in carbonate anions (O III ), and adsorbed water species (O w ), respectively. 27,28 The high amount of O II species in the three electrodes suggests a highly hydroxylated surface because of the loading of the NiCo LDH phase. NiCo LDH/ENF has the highest peak intensity of O III species, indicating the richness of the carbonate group.…”

Section: Resultsmentioning

confidence: 97%

NiCo Layered Double Hydroxide Nanoarrays Grown on an Etched Ni Foam Substrate for High-Performance Supercapacitor Electrode

Zhu

Zeng

et al. 2023

Energy Fuels

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Nickel foam (NF) with a desirable 3D open-pore structure is extensively adopted in developing integrated electrodes, and the enhanced interaction between the electrode materials and NF substrate is recognized as an effective method for a highperformance supercapacitor electrode with a low resistance nature and high stability. In this work, an etched NF (ENF) with residual nanosheets is adopted as a novel substrate to facilitate the capacitive activity of NiCo layered double hydroxide (NiCo LDH) nanowire arrays. NiCo LDH nanosheet arrays grown on a pristine NF substrate (NiCo LDH/NF) are synthesized initially and used as a precursor. Then, the ENF substrate with a residual nanosheet is obtained by partially removing NiCo LDH nanosheet arrays in a formamide/KOH mixed solution. Subsequently, NiCo LDH nanowire arrays are hydrothermally grown on ENF to form a NiCo LDH/ENF electrode. The role of the residual nanosheet on ENF is discussed in detail, in which the content of Ni 3+ /Co 3+ and the resistance nature of NiCo LDH/ENF can be optimized with the amount of residual nanosheets. Hence, the ENF substrate with an optimal amount of residual nanosheets is beneficial for retaining the adhesion of nanoarrays and realizing the low resistance nature in a mild route. The NiCo LDH/ENF electrode shows a capacity of 976.6 C g −1 at 1 A g −1 with excellent cyclic stability. The asassembled NiCo LDH/ENF//activated carbon hybrid supercapacitor delivers a high specific capacitance of 150.8 F g −1 at 1 A g −1 and achieves an energy density of 67.9 Wh kg −1 at a power density of 900 W kg −1 with an excellent cycle stability with a 90.6% capacity retention after 10,000 cycles, indicating high energy density and good stability.

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Section: Resultsmentioning

confidence: 97%

NiCo Layered Double Hydroxide Nanoarrays Grown on an Etched Ni Foam Substrate for High-Performance Supercapacitor Electrode

Zhu

Zeng

et al. 2023

Energy Fuels

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“…The total current response is the sum of capacitive ( k 1 υ ) and diffusion-controlled ( k 2 υ 1/2 ) current based on the following equation. 35,36 i = k 1 υ + k 2 υ 1/2 …”

Section: Resultsmentioning

confidence: 99%

POM-derived MoO₃/CoMoO₄mixed oxides directed by glucose for high-performance supercapacitors

2022

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“…The specific capacity of NiCoS/CeO 2 outperforms that of many metal sulfide and CeO 2 -based electrode materials reported previously (Table S1 †). 23,37 To reveal the electrochemical kinetics, the Nyquist plots of the samples are measured (Fig. 5d).…”

Section: Dalton Transactions Papermentioning

confidence: 99%

CeO₂decorated on Co-ZIF-L-derived nickel–cobalt sulfide hollow nanosheet arrays for high-performance supercapacitors

Tao

Han

2022

Dalton Trans.

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Heterostructure of metal–organic framework-derived straw-bundle-like CeO2 decorated with (Ni, Co)3S4 nanosheets for high-performance supercapacitor

Cited by 44 publications

References 59 publications

NiCo Layered Double Hydroxide Nanoarrays Grown on an Etched Ni Foam Substrate for High-Performance Supercapacitor Electrode

NiCo Layered Double Hydroxide Nanoarrays Grown on an Etched Ni Foam Substrate for High-Performance Supercapacitor Electrode

POM-derived MoO₃/CoMoO₄mixed oxides directed by glucose for high-performance supercapacitors

CeO₂decorated on Co-ZIF-L-derived nickel–cobalt sulfide hollow nanosheet arrays for high-performance supercapacitors

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Heterostructure of metal–organic framework-derived straw-bundle-like CeO2 decorated with (Ni, Co)3S4 nanosheets for high-performance supercapacitor

Cited by 44 publications

References 59 publications

NiCo Layered Double Hydroxide Nanoarrays Grown on an Etched Ni Foam Substrate for High-Performance Supercapacitor Electrode

NiCo Layered Double Hydroxide Nanoarrays Grown on an Etched Ni Foam Substrate for High-Performance Supercapacitor Electrode

POM-derived MoO3/CoMoO4mixed oxides directed by glucose for high-performance supercapacitors

CeO2decorated on Co-ZIF-L-derived nickel–cobalt sulfide hollow nanosheet arrays for high-performance supercapacitors

Contact Info

Product

Resources

About

POM-derived MoO₃/CoMoO₄mixed oxides directed by glucose for high-performance supercapacitors

CeO₂decorated on Co-ZIF-L-derived nickel–cobalt sulfide hollow nanosheet arrays for high-performance supercapacitors