Nitrogen-Doped Hollow Carbon Nanospheres Derived from Dopamine as High-Performance Anode Materials for Sodium-Ion Batteries

Yang, Yurong; Qiu, Min; Liu, Li; Su, Dan; Pi, Yanmei; Yan, Guomin

doi:10.1142/s1793292016501241

Cited by 16 publications

(8 citation statements)

References 38 publications

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“…In order to study the crystallinity and phase purity of all products, X-ray diffraction (XRD) patterns were acquired, as shown in Figure 3a. A broaden peak occurred in the area ranging from 20 • to 30 • and can be observed in all patterns, indicating that all the samples are dominated by amorphous carbon [52,53]. Notably, the broad peak becomes narrower after the addition of Fe 3+ , suggesting some growth of crystallites in the lateral direction.…”

Section: Resultsmentioning

confidence: 81%

“…Notably, the broad peak becomes narrower after the addition of Fe 3+ , suggesting some growth of crystallites in the lateral direction. The slight increase in the carbon crystallinity can be attributed to the catalytic effect of the metallic iron derived from FeCl3, which promotes graphitization during the calcination [53]. No peaks were observed in the XRD patterns for any of the Fe species, such as iron oxide or iron carbide, which can be explained by the low loading of iron in the samples.…”

Section: Resultsmentioning

confidence: 98%

“…Then, Fe3O4 was converted to α-Fe through carbothermal reduction and formed liquid droplets below 800 °C. The carbon nanospheres, on the other hand, started the graphitization process at around 800 °C [53]. Next, the samples were leached by acid to remove large Fe particles which are catalytically inactive and harmful in that they densify the hybrid and block the diffusion of electrolyte in the catalyst [48].…”

Section: Resultsmentioning

confidence: 99%

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Electrocatalytic Assisted Performance Enhancement for the Na-S Battery in Nitrogen-Doped Carbon Nanospheres Loaded with Fe

et al. 2020

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Room temperature sodium-sulfur batteries have been considered to be potential candidates for future energy storage devices because of their low cost, abundance, and high performance. The sluggish sulfur reaction and the “shuttle effect” are among the main problems that hinder the commercial utilization of room temperature sodium-sulfur batteries. In this study, the performance of a hybrid that was based on nitrogen (N)-doped carbon nanospheres loaded with a meagre amount of Fe ions (0.14 at.%) was investigated in the sodium-sulfur battery. The Fe ions accelerated the conversion of polysulfides and provided a stronger interaction with soluble polysulfides. The Fe-carbon nanospheres hybrid delivered a reversible capacity of 359 mAh·g−1 at a current density of 0.1 A·g−1 and retained a capacity of 180 mAh·g−1 at 1 A·g−1, after 200 cycles. These results, combined with the excellent rate performance, suggest that Fe ions, even at low loading, are able to improve the electrocatalytic effect of carbon nanostructures significantly. In addition to Na-S batteries, the new hybrid is anticipated to be a strong candidate for other energy storage and conversion applications such as other metal-sulfur batteries and metal-air batteries.

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Section: Resultsmentioning

confidence: 81%

Section: Resultsmentioning

confidence: 98%

Section: Resultsmentioning

confidence: 99%

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Electrocatalytic Assisted Performance Enhancement for the Na-S Battery in Nitrogen-Doped Carbon Nanospheres Loaded with Fe

et al. 2020

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“…Research on other carbonaceous materials has found that Na + is more inclined to be inserted into disordered layers of carbon [12,13]. Moreover, it is worth noting that the electrochemical performance of carbonaceous materials can be enhanced through doping heteroatom elements and manufacturing porous structures [14,15], which provides higher conductivity and extra Na-ion storage sites in SIBs [16][17][18][19][20][21]. Hence, in recent years, biomass-derived porous carbon has been extensively investigated as anode materials for SIBs [22] because of their advantages of high abundance, low cost, easy accessibility, environmental friendliness, hierarchical porous structure, and intrinsic heteroatom doping behavior.…”

Section: Introductionmentioning

confidence: 99%

From Jackfruit Rags to Hierarchical Porous N-Doped Carbon: A High-Performance Anode Material for Sodium-Ion Batteries

Zhao

Ding

Wen

2019

Trans. Tianjin Univ.

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Renewable biomass-derived carbon materials have attracted increasing research attention as promising electrode materials for electrochemical energy storage devices, such as sodium-ion batteries (SIBs), due to their outstanding electrical conductivity, hierarchical porous structure, intrinsic heteroatom doping, and environmental friendliness. Here, we investigate the potential of hierarchical N-doped porous carbon (NPC) derived from jackfruit rags through a facile pyrolysis as an anode material for SIBs. The cycling performance of NPC at 1 A/g for 2000 cycles featured a stable reversible capacity of 122.3 mA•h/g with an outstanding capacity retention of 99.1%. These excellent electrochemical properties can be attributed to the unique structure of NPC; it features hierarchical porosity with abundant carbon edge defects and large specific surface areas. These results illuminate the potential application of jackfruit rags-derived porous carbon in SIBs.

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“…16,17 Dahn and co-workers have proven that the hard carbons can achieve a reversible capacity of about 300 mA h g −1 . 18 Afterward, various disordered carbons, such as hollow carbon nanowires, 19 carbon nanofibers, 20 carbon nanospheres, 21 and soft carbons, 22 have been widely investigated as anodes for SIBs. Although much improved electrochemical performances have been realized, the disordered carbons suffer from fatal flaws of poor electronic conductivity and structural instability, which further greatly limit their rate capability and long-term cycling stability for Na-ion storage.…”

Section: ■ Introductionmentioning

confidence: 99%

Na-Ion Storage Behaviors of Quadrangular Herringbone-Carbon Nanotubes in Ether- and Ester-Based Electrolyte Systems

Yang

Liu

Guo

et al. 2018

ACS Sustainable Chem. Eng.

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Na-ion storage in graphitic carbons is a kinetically unfavorable process. It is envisioned that decreasing the size of graphitic layers can efficiently enhance Na-ion storage by shortening the diffusion pathway. However, because of the lack of model graphitic carbons, investigation on the effect of decreasing the graphitic layer size on Na-ion storage has not yet been carried out. In this work, quadrangular carbon nanotubes (q-CNTs) with herringbone-like graphitic walls are employed as model materials to exhibit the idea above. The q-CNTs show reduced dependence on the electrolytes. They deliver high capacity, excellent rate performance, and ultralong cyclic stability in both ether-based and ester-based electrolytes. Typically, the q-CNTs-600 exhibits high reversible capacities of 212 and 200 mA h g −1 at 0.1 A g −1 in ether-based and ester-based electrolytes, respectively. Even at 5 A g −1 , the reversible capacity of 132 mA h g −1 can still be maintained in the ether-based electrolyte. The excellent Na-ion storage features of q-CNTs should be due to the herringbone-like graphitic walls and small graphitic layer size, which can weaken the control of electrolyte on the Na-ion diffusion kinetics by shortening the diffusion distance and providing more diffusion channels. Accordingly, these graphitic q-CNTs are expected to be promising anodes for sodium ion batteries.

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Nitrogen-Doped Hollow Carbon Nanospheres Derived from Dopamine as High-Performance Anode Materials for Sodium-Ion Batteries

Cited by 16 publications

References 38 publications

Electrocatalytic Assisted Performance Enhancement for the Na-S Battery in Nitrogen-Doped Carbon Nanospheres Loaded with Fe

Electrocatalytic Assisted Performance Enhancement for the Na-S Battery in Nitrogen-Doped Carbon Nanospheres Loaded with Fe

From Jackfruit Rags to Hierarchical Porous N-Doped Carbon: A High-Performance Anode Material for Sodium-Ion Batteries

Na-Ion Storage Behaviors of Quadrangular Herringbone-Carbon Nanotubes in Ether- and Ester-Based Electrolyte Systems

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