Yolk-double shell Fe3O4@C@C composite as high-performance anode materials for lithium-ion batteries

Wang, Xuhui; Wang, Jianying; Chen, Zihe; Yang, Kai; Zhang, Zexian; Shi, Zhuoxun; Mei, Tao; Qian, Jingwen; Li, Jinhua; Wang, Xianbao

doi:10.1016/j.jallcom.2020.153656

Cited by 30 publications

(13 citation statements)

References 46 publications

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“…Fe-ZIF@C has not only the above five peaks but also an obvious peak located at approximately 1556 cm À1 , which is called the G-peak (characteristic peak of carbon). 16 Also, the peak of Fe-ZIF@C at 1324 cm À1 is drastically broadened, because the characteristic peak of a-Fe 2 O 3 overlaps with the D-peak (characteristic peak of carbon), 17 which may indicate that the surface of Fe-ZIF has been coated with carbon.…”

Section: Resultsmentioning

confidence: 99%

Fe-ZIF@C with Porous Nanostructure as Anode Material for Lithium-Ion Batteries

Nie

Shi

et al. 2021

Journal of Elec Materi

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Fe-zeolitic imidazolate framework (ZIF)@C (Fe-ZIF wrapped by carbon) anode material has been manufactured. It has porous nanostructure, which can effectively shorten the distance of lithium ion transmission, thus achieving excellent rate performance, and can also reduce the volume expansion in the charging and discharging process, thus reducing the attenuation of capacity. The external carbon coating avoids direct contact between Fe-ZIF and the electrolyte, inhibits decomposition of the electrolyte, and impedes formation of the solid electrolyte interphase (SEI) film, thus obtaining higher reversible capacity in the cycling process. At a current density of 100 mA/g, Fe-ZIF@C achieves a high discharge capacity of 719 mAh/g after 100 cycles. This research shows that Fe-ZIF@C has potential for use as an anode material for lithium-ion batteries.

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Section: Resultsmentioning

confidence: 99%

Fe-ZIF@C with Porous Nanostructure as Anode Material for Lithium-Ion Batteries

Nie

Shi

et al. 2021

Journal of Elec Materi

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“…It provides exceptional chemical stability and protects the magnetic core from oxidation, allowing further functionalization of the carbon surface. Core-shell nanostructures consisting of the iron oxide magnetic core coated with non-magnetic carbon demonstrate unique properties and technological capabilities [ 1 , 2 , 3 , 4 , 5 , 6 ].…”

Section: Introductionmentioning

confidence: 99%

“…Several authors considered Fe 3 O 4 @C nanostructures as the basis for anode materials of lithium-ion batteries [ 2 , 3 , 4 ]. The hierarchical Fe 3 O 4 @C microspheres obtained by the self-assembling of microalgae were shown in [ 2 ] to be excellent as anode materials for lithium-ion batteries.…”

Section: Introductionmentioning

confidence: 99%

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Carbon Double Coated Fe3O4@C@C Nanoparticles: Morphology Features, Magnetic Properties, Dye Adsorption

et al. 2022

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This work is devoted to the study of magnetic Fe3O4 nanoparticles doubly coated with carbon. First, Fe3O4@C nanoparticles were synthesized by thermal decomposition. Then these synthesized nanoparticles, 20–30 nm in size were processed in a solution of glucose at 200 °C during 12 h, which led to an unexpected phenomenon—the nanoparticles self-assembled into large conglomerates of a regular shape of about 300 nm in size. The morphology and features of the magnetic properties of the obtained hybrid nanoparticles were characterized by transmission electron microscopy, differential thermo-gravimetric analysis, vibrating sample magnetometer, magnetic circular dichroism and Mössbauer spectroscopy. It was shown that the magnetic core of Fe3O4@C nanoparticles was nano-crystalline, corresponding to the Fe3O4 phase. The Fe3O4@C@C nanoparticles presumably contain Fe3O4 phase (80%) with admixture of maghemite (20%), the thickness of the carbon shell in the first case was of about 2–4 nm. The formation of very large nanoparticle conglomerates with a linear size up to 300 nm and of the same regular shape is a remarkable peculiarity of the Fe3O4@C@C nanoparticles. Adsorption of organic dyes from water by the studied nanoparticles was also studied. The best candidates for the removal of dyes were Fe3O4@C@C nanoparticles. The kinetic data showed that the adsorption processes were associated with the pseudo-second order mechanism for cationic dye methylene blue (MB) and anionic dye Congo red (CR). The equilibrium data were more consistent with the Langmuir isotherm and were perfectly described by the Langmuir–Freundlich model.

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“…Forming composites usually produces better conductivity and structural stability. During the past decade, various nanostructures have been designed for active materials such as low-dimensional [9,10], porous [11,12], spherical [13][14][15][16], hollow [17,18], core/shell [19], yolk/shell [20,21], and so on, meanwhile, conductive ductile matrices such as metal [22,23] and/or carbon [24][25][26] have been introduced to fabricate nanocomposites. It is known from these examples that many novel-structured nanocomposites show significantly enhanced electrochemical performance.…”

Section: Introductionmentioning

confidence: 99%

NiO/Carbon Aerogel Microspheres with Plum-Pudding Structure as Anode Materials for Lithium Ion Batteries

et al. 2020

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To enhance the electrochemical performance of nickel oxide as anode materials for lithium ion batteries, NiO/carbon aerogel microspheres with a plum-pudding structure were designed and prepared by a sol-gel technique followed by two calcination processes under different atmospheres. Carbon aerogel microspheres (pudding) can act as a buffering and conductive matrix to enhance the structural stability and conductivity of the embedded NiO particles (plums), which are quite advantageous to the cycling performance and rate capability. Consequently, NiO/carbon aerogel microspheres with a plum-pudding structure deliver an initial charge capacity of 808 mAh g−1 and a reversible capacity retention of 85% after 100 cycles. The enhancement in electrochemical performance relative to pure NiO microspheres suggests that the design of a plum-pudding structure is quite effective.

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Yolk-double shell Fe3O4@C@C composite as high-performance anode materials for lithium-ion batteries

Cited by 30 publications

References 46 publications

Fe-ZIF@C with Porous Nanostructure as Anode Material for Lithium-Ion Batteries

Fe-ZIF@C with Porous Nanostructure as Anode Material for Lithium-Ion Batteries

Carbon Double Coated Fe3O4@C@C Nanoparticles: Morphology Features, Magnetic Properties, Dye Adsorption

NiO/Carbon Aerogel Microspheres with Plum-Pudding Structure as Anode Materials for Lithium Ion Batteries

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