Nitrogen-doped graphene aerogels as anode materials for lithium-ion battery: Assembly and electrochemical properties

Meng, Jingke; Suo, Yang; Li, Jie; Zheng, Gengfeng; Liu, Yushan; Zhang, Jianmin; Zheng, Xiu-Cheng

doi:10.1016/j.matlet.2015.08.024

Cited by 41 publications

(14 citation statements)

References 13 publications

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“…Figure 3f, the C1s spectrum of N-GF-300 is mainly composed of six kinds of bonds: C-C/C=C (284.6 eV), C-N (285.6 eV), C-O (286.5 eV), C=O (287.8 eV) and O=C-O (289.4 eV)[7,18,21,36]. The N1s spectrum is made up of three peaks inFigure 3h, located at 398.6, 399.8 and 401 eV, which correspond to pyridinic-N, pyrrolic-N and graphitic-N, respectively[37,38].…”

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confidence: 99%

N-Doped Modified Graphene/Fe2O3 Nanocomposites as High-Performance Anode Material for Sodium Ion Storage

et al. 2019

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Sodium-ion storage devices have received widespread attention because of their abundant sodium resources, low cost and high energy density, which verges on lithium-ion storage devices. Electrochemical redox reactions of metal oxides offer a new approach to construct high-capacity anodes for sodium-ion storage devices. However, the poor rate performance, low Coulombic efficiency, and undesirable cycle stability of the redox conversion anodes remain a huge challenge for the practical application of sodium ion energy storage devices due to sluggish kinetics and irreversible structural change of most conversion anodes during cycling. Herein, a nitrogen-doping graphene/Fe 2 O 3 (N-GF-300) composite material was successfully prepared as a sodium-ion storage anode for sodium ion batteries and sodium ion supercapacitors through a water bath and an annealing process, where Fe 2 O 3 nanoparticles with a homogenous size of about 30 nm were uniformly anchored on the graphene nanosheets. The nitrogen-doping graphene structure enhanced the connection between Fe 2 O 3 nanoparticles with graphene nanosheets to improve electrical conductivity and buffer the volume change of the material for high capacity and stable cycle performance. The N-GF-300 anode material delivered a high reversible discharge capacity of 638 mAh g −1 at a current density of 0.1 A g −1 and retained 428.3 mAh g −1 at 0.5 A g −1 after 100 cycles, indicating a strong cyclability of the SIBs. The asymmetrical N-GF-300//graphene SIC exhibited a high energy density and power density with 58 Wh kg −1 at 1365 W kg −1 in organic solution. The experimental results from this work clearly illustrate that the nitrogen-doping graphene/Fe 2 O 3 composite material N-GF-300 is a potential feasibility for sodium-ion storage devices, which further reveals that the nitrogen doping approach is an effective technique for modifying carbon matrix composites for high reaction kinetics during cycles in sodium-ion storage devices and even other electrochemical storage devices. IntroductionWith the rapid development of portable mobile electronic devices and electric vehicles, the importance of high-performance electrical energy storage (EES) devices is becoming increasingly prominent. The EES devices based on sodium ion such as sodium ion batteries (SIBs) and sodium ion supercapacitors (SICs) have attracted great attention due to their low cost, the rich abundance of sodium resource, and their high energy density, which approaches that of lithium-ion energy storage devices [1][2][3]. However, there are still some obstacles hindering the practical application of sodium ion energy storage devices, such as poor rate performance, low coulombic efficiency, and undesirable Nanomaterials 2019, 9, 1770 2 of 13 cycle stability. The foremost reason is the bigger radius of Na + (0.102 nm) compared to Li + (0.076 nm), which leads to low reaction kinetics for Na + insertion/extraction from the anode materials [4][5][6]. Meanwhile, excellent anode materials should have suitable microscopic internal ...

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confidence: 99%

N-Doped Modified Graphene/Fe2O3 Nanocomposites as High-Performance Anode Material for Sodium Ion Storage

et al. 2019

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“…25 Remarkably, the typical composites display a cylindrical shape (inset of Fig. 3a) which is similar to that of GA with an ultralight characteristic, 26 indicating that the TiO 2 -GA composites retain the 3D monolithic architecture of GA. Such 3D graphene-based aerogel embedded with nanoparticles may enhance the interfacial contacts and suppress the dissolution and agglomeration among the nanoparticles, thereby improves the photoelectrochemical activities and stability of the hybrids.…”

Section: Resultsmentioning

confidence: 85%

Synergetic adsorption and photocatalytic degradation of pollutants over 3D TiO2—graphene aerogel composites synthesized via a facile one-pot route

Zhang

Mei

et al. 2016

Photochem Photobiol Sci

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A series of composites consisting of anatase TiO2 nanocrystals and three-dimensional (3D) graphene aerogel (TiO2-GA) were self-assembled directly from tetrabutyl titanate and graphene oxides via a one-pot hydrothermal process. TiO2 was found to uniformly distribute inside the 3D network of GA in the resulting composites with large surface areas (SBET > 125 m(2) g(-1)) and high pore volumes (Vp > 0.22 cm(3) g(-1)). In comparison with GA and TiO2, the composites possessed much higher adsorption capacities and visible light photocatalytic activity in the degradation of rhodamine B (RhB). With an initial concentration of 20.0 mg L(-1) of RhB, the adsorptive decolourization of RhB was as high as 95.1% and the total decolourization value reached up to 98.7% under visible light irradiation over 5.0 mg of the resulting composites. It was elucidated that the physical and chemical properties of the TiO2-GA composites could be ascribed to their unique 3D nanoporous structure with high surface areas and the synergetic activities of graphene nanosheets and TiO2 nanoparticles.

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“…As previously reported, the sulfur/nitrogen dual‐doped GAs prepared by the research group of Shan et al., achieved discharged capacities ranging from 200 to 400 mAh g −1 at current rate of 400 mA g −1 , values lower comparing to our results. Moreover, as reported by Meng et al., the nitrogen‐doped GA presented a specific capacity of 300 mΑh g −1 , the composite of porous hollow SnO 2 integrated on the surface of GA prepared by the research group of Choi et al., exhibited a specific capacity of almost 500 mΑh g −1 , while Fe−Co oxide nanocubes encapsulated in the network of GA presented by Shao et al., gave a specific capacity of almost 400 mΑh g −1[21] at 500 mA g −1 current rate. For the same current density, Τan et al.…”

Section: Resultsmentioning

confidence: 99%

“…In order to take advantages of these features, many researchers have attempted to include this category of graphene‐based materials as anodic electrodes in LIBs. Three‐dimensional interconnected network of GA with structural defects have been previously proposed by controlling the hydrothermal reaction time, using helium ion beam bombardment, nitrogen doping or sulfur/nitrogen dual doping etc., resulting in improved cycling stability. Moreover, GA/transition metal oxides hybrids have been extensively studied, demonstrating high capacity, remarkable cycling stability and high rate capability attributed to the synergetic interaction of graphene and transition metal oxide nanoparticles …”

Section: Introductionmentioning

confidence: 99%

Graphene Aerogel Modified Carbon Paper as Anode for Lithium‐Ion Batteries

et al. 2020

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Carbon paper‐supported graphene aerogels are examined as anode electrodes for lithium‐ion batteries, employing a hydrothermal process and a freeze‐drying step. Triethylenetetramine (TETA) and o‐phenylenediamine (OPD) prove to promote graphene aerogel formation and its chemical bonding onto the surface of carbon paper. The electrochemical results demonstrate that the electrode treated with the former diamine has a remarkable rate capability with higher capacities as compared with the electrode treated with the latter diamine and better stability.

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Nitrogen-doped graphene aerogels as anode materials for lithium-ion battery: Assembly and electrochemical properties

Cited by 41 publications

References 13 publications

N-Doped Modified Graphene/Fe2O3 Nanocomposites as High-Performance Anode Material for Sodium Ion Storage

N-Doped Modified Graphene/Fe2O3 Nanocomposites as High-Performance Anode Material for Sodium Ion Storage

Synergetic adsorption and photocatalytic degradation of pollutants over 3D TiO2—graphene aerogel composites synthesized via a facile one-pot route

Graphene Aerogel Modified Carbon Paper as Anode for Lithium‐Ion Batteries

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