Amorphous carbon-coated ZnO porous nanosheets: Facile fabrication and application in lithium- and sodium-ion batteries

Teng, Yuping; Mo, Maosong; Li, Yuan; Xue, Jiangli; Zhao, Hailei

doi:10.1016/j.jallcom.2018.01.191

Cited by 65 publications

(27 citation statements)

References 54 publications

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“…CuO nanoparticles confined in ordered mesoporous carbon has also been reported for the sodium‐ion battery anode . Other transition metal oxides, such as V 2 O 5 , MnO, MoO 2 , ZnO, etc., have shown potential for sodium‐ion battery anodes with the help of porous carbon matrices or networks. The further research orientation should focus on how to effectively improve their relative low initial cycle Coulombic efficiency and real states in full sodium‐ion batteries.…”

Section: Active Anode Materials Incorporated With Porous Carbonaceousmentioning

confidence: 98%

Synthesis Strategies and Structural Design of Porous Carbon‐Incorporated Anodes for Sodium‐Ion Batteries

et al. 2019

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tunable porous structures, various morphologies, and high electron conductivity, which makes them very attractive in many different fields of applications, such as energy storage, absorption, water filtration, drug delivery, catalysis, and sensing. [3] Their unique properties can be utilized in various kinds of templates, substrates, capsules, and decorations, especially in energy storage research fields. [4] Due to global concerns about greenhouse gas emissions from the fossil fuels and climate change, many renewable energy technologies have been extensively developed and investigated to alleviate the reliance on the traditional fossil energy sources. [5] In order to store the intermittent forms of energy such as wind energy and solar energy, rechargeable batteries are widely considered as one of the best types of power storage for large-scale electrical energy storage systems (EESs). [6][7][8] In the past few decades, lithium-ion batteries (LIBs) have dominated the power source markets for advanced electric vehicles and portable electronics, since they possess the obvious advantages of high energy density and long cycle life. [9] Nevertheless, the low abundance, uneven distribution, and high price of lithium are increasingly hindering its application in the energy storage area. [10] Sodium-ion batteries (SIBs), which share a similar electrochemical nature, have been considered as the most promising low-cost alternative candidates to the commercial LIBs, especially for the EESs and smart grid applications, owing to the high abundance of sodium sources worldwide. [11,12] Considerable efforts and progress have been made toward transferring the successful experience on the LIB system to SIBs, especially in terms of electrode materials. Both the anode and cathode materials suffer, however, from sluggish reaction kinetics, lower specific capacity, and less electrochemical activity because of the large ionic radius of Na + (1.02 Å for Na + vs 0.76 Å for Li + ). [13,14] Furthermore, graphitic carbon is almost electrochemically inactive in SIBs. Therefore, developing desirable electrode materials for high performance SIBs, especially desirable anode materials, is still an urgent task that is necessary for the real application of SIBs. [15][16][17][18] Unlike the intercalation-type materials, most of the anode materials for SIBs store Na + ions through alloying reactions Over the past decades, porous carbonaceous and carbon-incorporated composites have aroused tremendous attention owing to their unique properties such as high surface area, excellent accessibility to active sites, tunable morphologies and structures, and superior mass transport and diffusion. They have been widely investigated and applied in various fields, such as energy storage, absorption, water filtration, drug delivery, catalysis, and sensing. In the energy storage area, rechargeable sodium-ion batteries (SIBs) have attracted tremendous attention as the next-generation power plants for large-scale energy storage systems (EESs). However, their low ene...

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Section: Active Anode Materials Incorporated With Porous Carbonaceousmentioning

confidence: 98%

Synthesis Strategies and Structural Design of Porous Carbon‐Incorporated Anodes for Sodium‐Ion Batteries

et al. 2019

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“…However, conventional graphite is not suitable for SIB anodes because the larger atomic radius of sodium requires intercalation hosts, with larger diffusion channels [4]. In recent years, the researched anode materials for SIBs transition metal oxides, such as TiO 2 , ZnO, and Co 3 O 4 , were found to hold the greatest potential for anode materials in SIBs due to their exceptional theoretical capacities, good versatility, and cost advantages [5][6][7][8][9][10]. In general, these anodes face severe challenges in poor electronic conductivity and huge volume changes during cycling.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Core-Shell Carbon Encapsulated Fe2O3 Composite through a Facile Hydrothermal Approach and Their Application as Anode Materials for Sodium-Ion Batteries

Zhang

Bakenov

Tan

et al. 2018

Metals

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Carbon encapsulated Fe 2 O 3 nanoparticles (C@Fe 2 O 3) were successfully synthesized via a facile and environmentally friendly hydrothermal method and prototyped in anode materials for sodium ion batteries (SIBs). High-resolution transmission and scanning electronic microscopy observations exhibited the formation of a highly core-shelled C@Fe 2 O 3 composite consisting of carbon layers coated onto uniform Fe 2 O 3 nanoparticles with a median diameter of 46.1 nm. This core-shell structure can repress the aggregation of Fe 2 O 3 nanoparticles, preventing the harsh volume change of the electrode, enhancing the electric conductivity of the active materials, and promoting Na-ion transformation during cycling. The electrochemical performances of the C@Fe 2 O 3 composite, as anodes for SIBs, retained a reversible capacity of 305 mAh g −1 after 100 cycles at 50 mA g −1 and exhibited an excellent cyclability at various current densities due to the synergistic effect between the carbon layers and Fe 2 O 3. These results suggest that C@Fe 2 O 3 composites present much potential as anode materials for rechargeable SIBs.

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“…Combining the CV results with the ex situ XRD results, it can be concluded that the sodium storage process of ZnFe 2 O 4 is combined by the electrochemical reactions of ZnO and Fe 2 O 3 with Na + . However, due to the fact that the CV peak positions to reflect the electrochemical reactions of ZnO and Fe 2 O 3 were very close to each other, the peaks cannot be separated accurately with low scan rate in our experiment conditions . Therefore, the broad cathodic peak located at ≈0.8 V thus can be assigned to the formation of metallic Fe and NaZn 13 in general terms, and the wide anodic peak situated at ≈1.5 V is attributed to the regeneration of Fe 2 O 3 and ZnO.…”

Section: Resultsmentioning

confidence: 84%

Zinc Ferrite Nanorod‐Assembled Mesoporous Microspheres as Advanced Anode Materials for Sodium‐Ion Batteries

Wang

et al. 2019

Energy Tech

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Mesoporous zinc ferrite (ZnFe2O4) microspheres assembled by nanorods are fabricated through a facile hydrothermal approach, followed by a calcination strategy. The fabricated mesoporous ZnFe2O4 has a diameter of approximately 500–800 nm with a high surface area of 91.6 m2 g−1. The utilization of the microspheres that serve as anode materials for sodium‐ion batteries is studied for the first time. The electrochemical results demonstrate that the ZnFe2O4 anode experiences a series of conversion and alloying reactions for reversible sodium storage and exhibits high sodium storage capacity and excellent stability. It exhibits a reversible capacity as high as 350 mAh g−1 after 300 cycles at 100 mA g−1, which is superior to other reported ZnO and ZnMxOy (M = Co, Sn, Ge) electrodes. The existence of the mesoporous structure is responsible for the excellent electrochemical properties of the microspheres, which not only enhances the electrochemical kinetics but also offers additional space to alleviate the strain associated with sodiation/desodiation.

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Amorphous carbon-coated ZnO porous nanosheets: Facile fabrication and application in lithium- and sodium-ion batteries

Cited by 65 publications

References 54 publications

Synthesis Strategies and Structural Design of Porous Carbon‐Incorporated Anodes for Sodium‐Ion Batteries

Synthesis Strategies and Structural Design of Porous Carbon‐Incorporated Anodes for Sodium‐Ion Batteries

Synthesis of Core-Shell Carbon Encapsulated Fe2O3 Composite through a Facile Hydrothermal Approach and Their Application as Anode Materials for Sodium-Ion Batteries

Zinc Ferrite Nanorod‐Assembled Mesoporous Microspheres as Advanced Anode Materials for Sodium‐Ion Batteries

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