Facile synthesis of an accordion-like Ni-MOF superstructure for high-performance flexible supercapacitors

Yan, Yan; Gu, Ping; Zheng, Shasha; Zheng, Mingbo; Pang, Huan; Xue, Huaiguo

doi:10.1039/c6ta08331e

Cited by 424 publications

(177 citation statements)

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“…[1][2][3][4] Highly organized building blocks of metals, [5,6] semiconductors, [7,8] hybrid metal-organic materials, [9][10][11] and transition-metal dichalcogenides [12] have been fabricated by using various methods. From the aspect of synthesis, self-assembly of simple building blocks into 3D, highly ordered superstructure with novel properties has attracted great interest in the fields of optics, catalysis, and energy storage.…”

Section: D Superstructuresmentioning

confidence: 99%

“…[19,20] However, the self-assemblies of 1D carbon nanomaterials into 3D ordered spherical superstructures are considerably challenging owing to the reduced accessible contact areas between the building blocks and core templates. [1][2][3][4] Highly organized building blocks of metals, [5,6] semiconductors, [7,8] hybrid metal-organic materials, [9][10][11] and transition-metal dichalcogenides [12] have been fabricated by using various methods. [24] The use of MOF as a template or precursor to synthesize carbon nanostructure is an efficient approach to produce carbon materials with controlled morphology and Hierarchical superstructures in nano/microsize have attracted great attention owing to their wide potential applications.…”

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Fabrication of a Spherical Superstructure of Carbon Nanorods

et al. 2019

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superstructure with a large radius of curvature, such as spherical organization, is still a challenge. So far, only a few kinds of 1D oxides could be assembled into 3D spherical superstructures. [13][14][15] Low-dimensional carbon nanomaterials have been widely used in energy storage and conversion owing to their distinct electrochemical properties and mechanical and thermal stability. [16][17][18] 3D superstructures constructed from lowdimensional components such as carbon nanorods/wires or graphene nanorribbons can inherit the exceptional properties of their building blocks and acquire certain unconventional advantages. [19,20] However, the self-assemblies of 1D carbon nanomaterials into 3D ordered spherical superstructures are considerably challenging owing to the reduced accessible contact areas between the building blocks and core templates. Although various synthetic approches have been developed for the synthesis of lowdimensional carbon nanostructures with well-defined size and controllable composition, [21][22][23] no techniques have been applied for controlling the assembly of 1D carbon nanomaterials into 3D spherical superstructure with uniform morphology.Metal-organic frameworks (MOF) are a class of porous crystalline materials that are constructed by metal ions/clusters and organic linkers. [24] The use of MOF as a template or precursor to synthesize carbon nanostructure is an efficient approach to produce carbon materials with controlled morphology and Hierarchical superstructures in nano/microsize have attracted great attention owing to their wide potential applications. Herein, a self-templated strategy is presented for the synthesis of a spherical superstructure of carbon nanorods (SS-CNR) in micrometers through the morphology-preserved thermal transformation of a spherical superstructure of metal-organic framework nanorods (SS-MOFNR). The self-ordered SS-MOFNR with a chestnut-shell-like superstructure composed of 1D MOF nanorods on the shell is synthesized by a hydrothermal transformation process from crystalline MOF nanoparticles. After carbonization in argon, the hierarchical SS-MOFNR transforms into SS-CNR, which preserves the original chestnut-shell-like superstructure with 1D porous carbon nanorods on the shell. Taking the advantage of this functional superstructure, SS-CNR immobilized with ultrafine palladium (Pd) nanoparticles (Pd@SS-CNR) exhibits excellent catalytic activity for formic acid dehydrogenation. This synthetic strategy provides a facile method to synthesize uniform spherical superstructures constructed from 1D MOF nanorods or carbon nanorods for applications in catalysis and energy storage. 3D SuperstructuresHierarchical superstructures are ubiquitous in the biological systems (e.g., proteins, lipids, and carbohydrates). From the aspect of synthesis, self-assembly of simple building blocks into 3D, highly ordered superstructure with novel properties has attracted great interest in the fields of optics, catalysis, and energy storage. [1][2][3][4] Highly organized building bloc...

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Section: D Superstructuresmentioning

confidence: 99%

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confidence: 99%

Fabrication of a Spherical Superstructure of Carbon Nanorods

et al. 2019

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“…It is convenient to prepare an MOF‐derived nano/microstructured hybrid due to the simple synthesis of MOFs. Besides, it is also a facile way to design the structural complexity, reproducibility, and composition uniformity of MOFs . As a typical example, Liu et al demonstrated a nanostructured self‐standing hybrid cathode host comprised of MOF‐derived porous carbon polyhedrons and CNTs (Figure c,d) .…”

Section: Strategiesmentioning

confidence: 99%

Chemical Immobilization Effect on Lithium Polysulfides for Lithium–Sulfur Batteries

Guo

et al. 2017

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Despite great progress in lithium-sulfur batteries (LSBs), great obstacles still exist to achieve high loading content of sulfur and avoid the loss of active materials due to the dissolution of the intermediate polysulfide products in the electrolyte. Relationships between the intrinsic properties of nanostructured hosts and electrochemical performance of LSBs, especially, the chemical interaction effects on immobilizing polysulfides for LSB cathodes, are discussed in this Review. Moreover, the principle of rational microstructure design for LSB cathode materials with strong chemical interaction adsorbent effects on polysulfides, such as metallic compounds, metal particles, organic polymers, and heteroatom-doped carbon, is mainly described. According to the chemical immobilizing mechanism of polysulfide on LSB cathodes, three kinds of chemical immobilizing effects, including the strong chemical affinity between polar host and polar polysulfides, the chemical bonding effect between sulfur and the special function groups/atoms, and the catalytic effect on electrochemical reaction kinetics, are thoroughly reviewed. To improve the electrochemical performance and long cycling life-cycle stability of LSBs, possible solutions and strategies with respect to the rational design of the microstructure of LSB cathodes are comprehensively analyzed.

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“…Yan et al [51] prepared Ni-MOFs (Fig. 4) with a novel accordion morphology using the same organic ligand and metal ions as in Yang's report [50].…”

Section: Science Chinamentioning

confidence: 99%

Recent advancements in metal organic framework based electrodes for supercapacitors

et al. 2018

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Facile synthesis of an accordion-like Ni-MOF superstructure for high-performance flexible supercapacitors

Abstract: We have successfully synthesized an accordion-like Ni-MOF superstructure for high-performance flexible supercapacitors.

Cited by 424 publications

References 57 publications

Fabrication of a Spherical Superstructure of Carbon Nanorods

Fabrication of a Spherical Superstructure of Carbon Nanorods

Chemical Immobilization Effect on Lithium Polysulfides for Lithium–Sulfur Batteries

Recent advancements in metal organic framework based electrodes for supercapacitors

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