Facile synthesis of two-dimensional (2D) nanoporous NiO nanosheets from metal–organic frameworks with superior capacitive properties

Sun, Zhipeng; Hui, Lan; Ran, Wensheng; Lü, Yi; Jia, Dianzeng

doi:10.1039/c5nj02261d

Cited by 29 publications

(8 citation statements)

References 28 publications

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“…The NiO nanosheets from Ni-MOF are promising electrode materials for energy storage applications. Sun et al have reported the controllable synthesis of 2D Ni-based MOF nanoplates [107]. Subsequently, 2D Ni-based MOF nanoplates were used as precursors to form the freestanding nitrogen-doped Ni-Ni 3 S 2 @carbon nanoplate by pyrolysis.…”

Section: Synthesis Of Mixedmentioning

confidence: 99%

Recent Advances and New Challenges: Two-Dimensional Metal–Organic Framework and Their Composites/Derivatives for Electrochemical Energy Conversion and Storage

Nivetha

Sharma

Jana

et al. 2023

International Journal of Energy Research

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Metal–organic frameworks (MOFs), as a new generation of intrinsically porous extended crystalline materials formed by coordination bonding between the organic ligands and metal ions or clusters, have attracted considerable interest in many applications owing to their high porosity, diverse structures, and controllable chemical structure. Recently, 2D transition-metal- (TM-) based MOFs have become a hot topic in this field because of their high aspect ratio derived from their large lateral size and small thickness, as well as the advantages of MOFs. Moreover, 2D TM-based MOFs can act as good precursors to construct heterostructures with high electrical conductivity and abundant active sites for a range of applications. This review comprehensively introduces the widely adopted synthesis strategies of 2D TM-based MOFs and their composites/derivatives. In addition, this paper summarizes and highlights the recent advances in energy conversion and storage, including the hydrogen evolution reaction, oxygen evolution reaction, oxygen reduction reaction, CO2 reduction reaction, urea oxidation reaction, batteries, and supercapacitors. Finally, the challenges in developing these intriguing 2D layered materials and their composites/derivatives are examined, and the possible proposals for future directions to enhance the energy conversion and storage performance are reviewed.

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Section: Synthesis Of Mixedmentioning

confidence: 99%

Recent Advances and New Challenges: Two-Dimensional Metal–Organic Framework and Their Composites/Derivatives for Electrochemical Energy Conversion and Storage

Nivetha

Sharma

Jana

et al. 2023

International Journal of Energy Research

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show abstract

“…100,132 Recent work has been directed towards the incorporation of MONs into supercapacitor electrodes. 50,125,133 The groups of Jia and Wei have utilised MONs as electrode materials. Jia and coworkers found an 80.2% retention rate aer 500 chargedischarge cycles, 133 and more recently the group of Wei set records for both capacitance (2564 F g À1 ) and retention (95.8% aer 3000 cycles) for MO materials (Fig.…”

Section: Electronicsmentioning

confidence: 99%

Metal–organic framework nanosheets (MONs): a new dimension in materials chemistry

2018

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“…Sun et al obtained highly porous nickel oxide nanosheets (NiO NSs) from Ni‐based MOFs, which were prepared via an easy room temperature solution route. The porous nanosheets delivered a high specific capacitance of 527.1 F g −1 at 1 A g −1 and retained of about 80.2% at a high current density of 5 A g −1 after 500 charge‐discharge cycles.…”

Section: Performance Optimization Of Mof‐derived Nanostructure Metal mentioning

confidence: 99%

A review of performance optimization of MOF-derived metal oxide as electrode materials for supercapacitors

et al. 2018

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Summary Metal‐organic frameworks (MOFs), as new class of porous materials, are constructed by inorganic metal centers and bridging organic links. Recently, MOFs have been proved to be effective templates for preparing metal oxides with large surface areas and controlled shape by directly annealing in air. There are lots of reports about metal‐organic framework‐derived metal oxides as electrode materials for supercapacitors. Metal‐organic framework‐derived metal oxides can offer higher capacitances compared with that prepared by other synthetic methods, likely attribute to high surface areas and optimal pore sizes. However, at present, the specific capacitances of MOF‐derived metal oxides received are far lower than theoretical values, and the cycle numbers could not meet practical demands. Accordingly, much effort has been made to improve the performance by further modifying MOFs. Thus, this paper focused on the advances in performance optimization of MOF‐derived metal oxide as electrode materials for supercapacitors as follows: Dual metal MOF‐derived binary metal oxides. Metal oxides with 2 metal cations possess better electrical conductivity and richer redox active sites than single metal oxides. Metal‐organic framework‐derived carbon/metal oxide composites (MO@C) or graphene/MOF‐derived graphene/metal oxide composites. Doping carbon not only facilitate transportation of electrodes but also contribution to extra double‐layer capacitance. Hybrid MOF‐derived metal oxide composites (MO@MO). Metal oxide composites can produce some synergistic effects that the individuals cannot provide. Metal‐organic framework‐derived metal oxides with a hollow structure. The Hollow structure could shorten ion diffusion distance and adapt to volume expansion generated during the ion intercalated/extracted process.

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Facile synthesis of two-dimensional (2D) nanoporous NiO nanosheets from metal–organic frameworks with superior capacitive properties

Abstract: 2D nanoporous NiO nanosheets were synthesized from metal–organic frameworks as precursors using a facile method, which exhibited superior capacitive properties.

Cited by 29 publications

References 28 publications

Recent Advances and New Challenges: Two-Dimensional Metal–Organic Framework and Their Composites/Derivatives for Electrochemical Energy Conversion and Storage

Recent Advances and New Challenges: Two-Dimensional Metal–Organic Framework and Their Composites/Derivatives for Electrochemical Energy Conversion and Storage

Metal–organic framework nanosheets (MONs): a new dimension in materials chemistry

A review of performance optimization of MOF-derived metal oxide as electrode materials for supercapacitors

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