Porous graphene prepared from anthracite as high performance anode materials for lithium-ion battery applications

Xing, Baolin; Zeng, Huihui; Huang, Guangxu; Zhang, Chuanxiang; Yuan, Ruifu; Cao, Yijun; Chen, Zhengfei; Yu, Jianglong

doi:10.1016/j.jallcom.2018.11.288

Cited by 113 publications

(36 citation statements)

References 57 publications

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“…The inner layer spacing of the (002) phase of 3D ECG (0.35 nm, according to Bragg's equation: 2 d × sin θ = λ) is much larger than that of 3D BC (0.34 nm), indicating that the compact graphite layer structure is destroyed. Comparing the (002) peaks of the two samples, it can be found that the peak position of 3D ECG shifts significantly toward the low diffraction angle, while the peak shape becomes wider and the peak intensity becomes weaker . This phenomenon can be attributed to the following two points.…”

Section: Resultsmentioning

confidence: 91%

“…No holes were observed in the 3D ECG sheets in both TEM and SEM images, which indirectly proved this conclusion. The rich mesoporous structure can not only improve the material's rate performance by increasing the contact area of the electrode material with the electrolyte, but also increase the lithium storage capacity of the material by using a part of the mesopores as an active site for storing Li + …”

Section: Resultsmentioning

confidence: 99%

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Nickel‐Catalyzed Synthesis of 3D Edge‐Curled Graphene for High‐Performance Lithium‐Ion Batteries

Zhang

et al. 2019

Adv Funct Materials

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Effectively preventing graphene stacking and maintaining ultrathin layers remains a significant research effort for graphene preparation and applications. In this paper, a novel synthetic strategy based on catalyst migration on the surface of a salt template to control the growth of graphene is used to prepare 3D edge‐curled graphene (3D ECG). Under the synergistic effect of the steric hindrance and the migration of the Ni catalyst, 3D ECG forms a special structure in which the intermediate portion is flat and the edge is curled. The resultant unique structure not only effectively prevents the close stacking and aggregation of graphene, but also significantly improves its lithium storage performance. As an anode for lithium ion batteries, the reversible specific capacity can reach 907.5 and 347.8 mAh g−1 at the current density of 0.05 and 5.0 A g−1. Even after 1000 cycles, the specific capacity of 3D ECG can still be maintained at 605.2 mAh g−1 at a current density of 0.5 A g−1, demonstrating excellent rate performance and cycle performance. This new synthesis strategy and unique edge‐curled structure can be used to guide more design of 3D graphene materials for further functional applications.

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Section: Resultsmentioning

confidence: 91%

Section: Resultsmentioning

confidence: 99%

Nickel‐Catalyzed Synthesis of 3D Edge‐Curled Graphene for High‐Performance Lithium‐Ion Batteries

Zhang

et al. 2019

Adv Funct Materials

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“…Recently, substantial effort has been expended to improve the performance of energy storage devices based on carbon electrodes through heteroatom functionalities, such as nitrogen, sulfur or oxygen. [6][7][8][9][10][11][12] Possible explanations for the capacitance increase are the faradaic reaction of the heteroatom-containing functional groups, the improvement of wettability of the pore walls and the increase in conductivity of the porous materials. The incorporation of nitrogen was achieved either by treating carbon materials with ammonia or nitrogen-based gas or chemicals.…”

Section: Introductionmentioning

confidence: 99%

Preparation and electrochemical performance of nitrogen-enriched activated carbon derived from silkworm pupae waste

et al. 2019

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“…14 Graphite, as the current main anode material for commercial LIBs, still maintains some fatal deficiencies, such as a poor rate and cycle capacity, which can not meet the increasing demand of the LIBs. 15 Therefore, multifarious carbonaceous materials, especially nanostructured carbon-based materials, such as graphene sheets, 16 graphene nanoribbons, 17 carbon nanotubes, 18,19 carbon nanofibers (CNFs), 20 and carbon nanospheres 21 have received plenty of attention due to the merits of dynamic advantages relative to the bulk counterparts, 22 abundant resources and environment-benign. 23 As two important members in the carbon material family, graphene and CNFs have shown outstanding advantages as anode materials in LIBs.…”

Section: Introductionmentioning

confidence: 99%

Free‐standing nitrogen‐doped graphene‐carbon nanofiber composite mats: electrospinning synthesis and application as anode material for lithium‐ion batteries

Shan

Wang

Xie

et al. 2019

J of Chemical Tech & Biotech

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BACKGROUND Graphene and carbon nanofibers have shown outstanding advantages as anode materials in lithium‐ion batteries (LIBs) because of their prominent electronic conductivity, outstanding flexibility, high theoretical specific capacity, high specific surface, and chemical durability. Free‐standing nanocomposite mats from graphene and carbon nanofibers, without any conductive additive and binder, could improve the weight energy density of the LIBs. RESULTS Nitrogen‐doped carbon fiber‐reduced graphene oxide (NCNFs‐rGO) mats are fabricated by high‐temperature thermal treatment of graphene oxide/polyacrylonitrile (PAN‐GO) nanofiber composite mats via a simple electrospinning method. The resultant free‐standing NCNFs‐rGO mats which were systematically characterized by scanning electron microscopy, X‐ray diffraction, Raman spectroscopy, X‐ray photoelectron spectroscopy, and electrochemical properties as an anode for LIBs were also measured. Without any conductive additive and binder, the resultant free‐standing NCNFs‐rGO mats were directly used as an anode material in LIBs. CONCLUSION The LIBs with NCNFs‐rGO mats as anodes exhibited a high rate capability and long cycle stability owing to the structural integrity and highly electrical conductivity. © 2019 Society of Chemical Industry

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Porous graphene prepared from anthracite as high performance anode materials for lithium-ion battery applications

Cited by 113 publications

References 57 publications

Nickel‐Catalyzed Synthesis of 3D Edge‐Curled Graphene for High‐Performance Lithium‐Ion Batteries

Nickel‐Catalyzed Synthesis of 3D Edge‐Curled Graphene for High‐Performance Lithium‐Ion Batteries

Preparation and electrochemical performance of nitrogen-enriched activated carbon derived from silkworm pupae waste

Free‐standing nitrogen‐doped graphene‐carbon nanofiber composite mats: electrospinning synthesis and application as anode material for lithium‐ion batteries

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