Sn@graphene grown on vertically aligned graphene for high-capacity, high-rate, and long-life lithium storage

Li, Na; Song, Huawei; Cui, Hao; Wang, Chengxin

doi:10.1016/j.nanoen.2013.10.014

Cited by 103 publications

(63 citation statements)

References 38 publications

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“…Graphene‐based catalysts exhibit strong intrinsic π–π interactions and van der Waals forces, which make them likely to aggregate, leading to a decrease in surface area, OER activity, and stability . It is usually prepared in the form of powder, which then requires the use of binders in order to form a working electrode structure, which then decreases the conductivity and can block diffusion and active sites.…”

Section: D Carbons For the Oermentioning

confidence: 99%

3D Carbon Materials for Efficient Oxygen and Hydrogen Electrocatalysis

Sobrido

Jervis

Periasamy

et al. 2019

Advanced Energy Materials

114

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Sustainable energy production at an acceptable cost is key for its widespread application. At present, noble metals and metal oxides are the most widely used for electrocatalysis, but they suffer from low selectivity, poor durability, and scarcity. Because of this, metal‐free carbons have become the subject of great interest as promising alternative electrocatalysts for energy conversion and storage devices, and remarkable progress has been accomplished in the advance of metal‐free carbons as electrocatalysts for renewable energy technologies. Particularly interesting are 3D porous carbon architectures, which exhibit outstanding features for electrocatalysis applications, including broad range of active sites, interconnected porosity, high conductivity, and mechanical stability. This review summarizes the latest advances in 3D porous carbon structures for oxygen and hydrogen electrocatalysis. The structure–performance relationship of these materials is consequently rationalized and perspectives on creating more efficient 3D carbon electrocatalysts are suggested.

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Section: D Carbons For the Oermentioning

confidence: 99%

3D Carbon Materials for Efficient Oxygen and Hydrogen Electrocatalysis

Sobrido

Jervis

Periasamy

et al. 2019

Advanced Energy Materials

114

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“…Recently, enormous efforts have been devoted to fabricate complex hollow structured TMOs/TMDs (e.g., yolkshelled TiO 2 sphere, [75] yolk-shelled δ-MnO 2 sphere, [76] multishelled NiS nanobox [77] and yolk-shelled MoSe 2 microsphere [78] ) by advanced synthetic approaches. For example, the large accessible surface area, large void spaces and high electrical conductivity can encourage wider use of vertically aligned graphene arrays (VAGAs) as anode materials [87] or active substrate carries (e.g., Si-nanoparticles @graphene nanosheets (Si-NPs@GNS), [88] GeOx, [89] SnO 2 -NPs, [90] Sn@G [91] and S-NPs [92] on VAGAs) in RLBs. Apart from the TMOs/TMDs, some hollow structured polynary TMOs/TMDs (e.g., CoMn 2 O 4 hollow sphere, [79] Graphene-encapsulated ZnNiCoO microsphere, [80] M-Mn based oxides hollow tubular, [81] core-shelled NiCo 2 O 4 hollow sphere, [82] multi-shelled NiCo 2 S 4 hollow sphere [83] ) were also attractive electrode materials for LIBs and Li-O 2 batteries and etc.…”

Section: Structural Hierarchy Concepts and Their Representative Archimentioning

confidence: 99%

Hierarchical Structures Based on Two‐Dimensional Nanomaterials for Rechargeable Lithium Batteries

Cong

Xie

2017

Advanced Energy Materials

228

125

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Two‐dimensional (2D) nanomaterials (i.e., graphene and its derivatives, transition metal oxides and transition metal dichalcogenides) are receiving a lot attention in energy storage application because of their unprecedented properties and great diversities. However, their re‐stacking or aggregation during the electrode fabrication process has greatly hindered their further developments and applications in rechargeable lithium batteries. Recently, rationally designed hierarchical structures based on 2D nanomaterials have emerged as promising candidates in rechargeable lithium battery applications. Numerous synthetic strategies have been developed to obtain hierarchical structures and high‐performance energy storage devices based on these hierarchical structure have been realized. This review summarizes the synthesis and characteristics of three styles of hierarchical architecture, namely three‐dimensional (3D) porous network nanostructures, hollow nanostructures and self‐supported nanoarrays, presents the representative applications of hierarchical structured nanomaterials as functional materials for lithium ion batteries, lithium‐sulfur batteries and lithium‐oxygen batteries, meanwhile sheds light particularly on the relationship between structure engineering and improved electrochemical performance; and provides the existing challenges and the perspectives for this fast emerging field.

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“…In the anodic sweep, oxidation peaks between 0.4 and 0.9 V are assigned to the dealloying reaction of Li x Sn. 24,25 Additionally, the redox peaks at about 1.55/1.62 V and 1.7 V/2.0 V are ascribed to the Li 4 Ti 5 O 12 phase and TiO 2 phase, respectively. The reduction peaks from 0.5 to 1.0 V were observed during the rst cathodic sweep, indicating the formation of the solid-electrolyte interphase (SEI) lm and the side reaction of the electrolyte.…”

Section: Resultsmentioning

confidence: 99%

“…The reduction peaks from 0.5 to 1.0 V were observed during the rst cathodic sweep, indicating the formation of the solid-electrolyte interphase (SEI) lm and the side reaction of the electrolyte. 25 The broad peak centered at 2.9 V might be related to the secondary reactions of salt anions in the electrolyte and the fresh surface of the amorphous carbon. 26 The reversible electrochemical reactions for each component of LTO-TO-NWs/Sn@C can be demonstrated in eqn (5)-(8), respectively.…”

Section: Resultsmentioning

confidence: 99%

Nitrogen-doped carbon coated Li₄Ti₅O₁₂–TiO₂/Sn nanowires and their enhanced electrochemical properties for lithium ion batteries

et al. 2016

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Li-Ti-O system materials have been intensively investigated due to their outstanding rate performance and cycling stability for lithium ion batteries. However, poor electronic conductivity and low theoretical capacity restrict their practical application. In this paper, we fabricated Li 4 Ti 5 O 12 -TiO 2 /Sn nanowires embedded in a N-doped carbon network via a simple heterostructured growth process. Not only can the novel composites illustrate the synergistic effect of the structural stability of 1D Li 4 Ti 5 O 12 -TiO 2 substrates and high capacity of Sn, but the N-doped porous carbon network also can improve the conductive and ion diffusion improvement together with aggregation prevention. Therefore, the novel nanocomposites show an initial discharge capacity of 964 mA h g À1 and a capacity retention of about 360 mA h g À1 aer 600 cycles at a high current rate of 1000 mA g À1 , which makes them a promising anode material for lithium ion batteries.

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Sn@graphene grown on vertically aligned graphene for high-capacity, high-rate, and long-life lithium storage

Cited by 103 publications

References 38 publications

3D Carbon Materials for Efficient Oxygen and Hydrogen Electrocatalysis

3D Carbon Materials for Efficient Oxygen and Hydrogen Electrocatalysis

Hierarchical Structures Based on Two‐Dimensional Nanomaterials for Rechargeable Lithium Batteries

Nitrogen-doped carbon coated Li₄Ti₅O₁₂–TiO₂/Sn nanowires and their enhanced electrochemical properties for lithium ion batteries

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Sn@graphene grown on vertically aligned graphene for high-capacity, high-rate, and long-life lithium storage

Cited by 103 publications

References 38 publications

3D Carbon Materials for Efficient Oxygen and Hydrogen Electrocatalysis

3D Carbon Materials for Efficient Oxygen and Hydrogen Electrocatalysis

Hierarchical Structures Based on Two‐Dimensional Nanomaterials for Rechargeable Lithium Batteries

Nitrogen-doped carbon coated Li4Ti5O12–TiO2/Sn nanowires and their enhanced electrochemical properties for lithium ion batteries

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Product

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Nitrogen-doped carbon coated Li₄Ti₅O₁₂–TiO₂/Sn nanowires and their enhanced electrochemical properties for lithium ion batteries