Controllable synthesis of a peapod-like nanostructure via nanoconfining CoFe2O4 in CMK-5 for high-performance lithium-ion batteries

Sun, Yuanyuan; Zou, Yihui; Fang, Yuan; Yan, Chunyun; Chen, Shuai; Jia, Yi; Zhang, Huawei; Yang, Dongjiang; She, Xilin

doi:10.1016/j.apsusc.2018.10.216

Cited by 27 publications

(7 citation statements)

References 30 publications

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“…[15][16][17][18] In the various catalytic materials, non-noble transition metal oxides have the benets of low cost, simple preparation, controllable morphology and high electrochemical activity, which were widely used in electrochemical eld, especially in supercapacitors. [19][20][21] Moreover, the anti-spinel structure of CoFe 2 O 4 material has been extensively studied in the elds of sodium-ion batteries, 22,23 lithium-ion batteries, [24][25][26] capacitors, 27,28 adsorbents, 29,30 and electrocatalysts. 31,32 However, most reports were focused on CoFe 2 O 4 nanomaterials for the degradation of bisphenol A, 33 and few researches have been done in electrochemical detection.…”

Section: Introductionmentioning

confidence: 99%

A facile synthesis of nanostructured CoFe₂O₄ for the electrochemical sensing of bisphenol A

et al. 2020

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Section: Introductionmentioning

confidence: 99%

A facile synthesis of nanostructured CoFe₂O₄ for the electrochemical sensing of bisphenol A

et al. 2020

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“…The TEM images (Figure 2b,c) further confirmed that the average diameter of CNFO nanoparticles is 5−15 nm, which is much smaller than the previously reported NiFe 2 O 4 and CoFe 2 O 4 . 33,34 Moreover, benefiting from the synergistic effect from both cobalt and nickel ions in the oxide structure, the electronic conductivity of the CNFO will be superior to NiFe 2 O 4 and CoFe 2 O 4 , respectively, 35,36 which can facilitate the conversion efficiency of the captured LiPSs. The XRD pattern revealed that the crystal phase of CNFO was the spinel structure with Fd3m space group (Figure 2e), which is consistent with previous report about NiFe 2 O 4 and ZnCo 2 O 4 .…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Reliable Interlayer Based on Hybrid Nanocomposites and Carbon Nanotubes for Lithium–Sulfur Batteries

Liu

Sun

Hao

et al. 2019

ACS Appl. Mater. Interfaces

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The future energy needs have triggered research interest in finding novel energy storage systems with high energy density. Lithium–sulfur batteries are regarded as one of the most promising options for the next-generation energy storage applications because of their high theoretical energy and low cost. However, the electrochemical performances of lithium–sulfur batteries are seriously compromised by the polysulfide (LiPS) shuttling and the insulating nature of sulfur. To overcome these issues, novel CoNi1/3Fe2O4 (CNFO) nanoparticles uniformly covered on the carbon nanotubes are now reported as an efficient functional interlayer. Benefiting from the sufficient sulfiphilic sites of the CNFO for chemically bonding with LiPSs, as well as the conductive interconnected skeleton of carbon nanotubes, this composite material showed great enhancement on the rate capability and cycle stability of Li–S batteries. The Li–S battery using this interlayer exhibited a high initial capacity of 897 mA h g–1 and a low capacity decay of 0.063% per cycle within 250 cycles at 2 C. Meanwhile, an reversible specific capacity of 869 mA h g–1 (at 0.5 C) with high Coulombic efficiency could be obtained over 100 cycles at an elevated temperature (60 °C). We speculated that the chemical adsorption of CNFO for polysulfide-anchoring is extremely critical for the performances of Li–S batteries under high temperature.

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“…The confinement in the carbon pore serves as a rigid structure to maintain the morphology of the electrode material after cycling between the charged and discharged state. [ 145–150 ] It is essential to mention that during the lithiation and delithiation process in batteries, the volume changes can be drastic, which is a major cause of poor cycling stability in many such systems. [ 150–152 ] Thus, the local confinement may be advantageous for increased cycling stability.…”

Section: Selectivity Strategiesmentioning

confidence: 99%

“…Moreover, TiO 2 , Mn 2 O 3 /Mn 3 O 4 , NiO, and CoFe 2 O 4 loaded CMK‐5 samples were synthesized. [ 148,149 ] The distribution of the metal oxides can be observed by transmission electron microscopy, as shown in Figure . The location of Fe 2 O 3 in the hollow carbon tubes is clearly visible by the image contrast as the electron density of carbon walls, and the metal oxide is so different.…”

Section: Selectivity Strategiesmentioning

confidence: 99%

“…Energy‐dispersive spectroscopic mapping reveals the lateral distribution of iron, cobalt, and oxygen in the intra‐tubular pores, while the inter‐tubular pores are empty. [ 148 ] Also, electron energy loss spectroscopic (EELS) mapping was used by Pellicer et al. to show that a silica material could be homogeneously coated with a metal oxide precursor during a nanocasting synthesis.…”

Section: Characterization Techniquesmentioning

confidence: 99%

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Selective Modification of Hierarchical Pores and Surfaces in Nanoporous Materials

Tiemann

Weinberger

2020

Adv Materials Inter

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Tailor‐made ordered mesoporous materials bear great potential in numerous fields of application where large interfaces are required. However, the inherent surfacechemical properties of conventional materials, such as silica, carbon or organosilica, poses some limitations with respect to their application. Surface manipulation by functionalization with chemically more reactive groups is one way to improve materials for their desired purpose. Another approach is the design of high surface‐area composite materials. The surface manipulation, either by functionalization or by introducing guest species, can be performed selectively. This means that when several distinct, i.e. , hierarchical, types of surfaces or pore systems exist in a material, each of them may be chosen for manipulation. Several strategies can be identified to achieve this goal. Molecules or molecule assemblies can be utilized to temporarily protect pores or surfaces (soft protection), while manipulation occurs at the accessible sites. This approach is a recurring motive in this review and can also be applied to rigid template matrices (hard protection). Furthermore, the size of functionalization agents (size protection) and their reactivity/diffusion (kinetic protection) into the pores can also be utilized to achieve selectivity. In addition, challenges in the synthesis and characterization of selectively manipulated ordered mesoporous materials are discussed.

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Controllable synthesis of a peapod-like nanostructure via nanoconfining CoFe2O4 in CMK-5 for high-performance lithium-ion batteries

Cited by 27 publications

References 30 publications

A facile synthesis of nanostructured CoFe₂O₄ for the electrochemical sensing of bisphenol A

A facile synthesis of nanostructured CoFe₂O₄ for the electrochemical sensing of bisphenol A

Reliable Interlayer Based on Hybrid Nanocomposites and Carbon Nanotubes for Lithium–Sulfur Batteries

Selective Modification of Hierarchical Pores and Surfaces in Nanoporous Materials

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Controllable synthesis of a peapod-like nanostructure via nanoconfining CoFe2O4 in CMK-5 for high-performance lithium-ion batteries

Cited by 27 publications

References 30 publications

A facile synthesis of nanostructured CoFe2O4 for the electrochemical sensing of bisphenol A

A facile synthesis of nanostructured CoFe2O4 for the electrochemical sensing of bisphenol A

Reliable Interlayer Based on Hybrid Nanocomposites and Carbon Nanotubes for Lithium–Sulfur Batteries

Selective Modification of Hierarchical Pores and Surfaces in Nanoporous Materials

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Product

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A facile synthesis of nanostructured CoFe₂O₄ for the electrochemical sensing of bisphenol A

A facile synthesis of nanostructured CoFe₂O₄ for the electrochemical sensing of bisphenol A