Facile one-pot fabrication of α-Fe2O3 nano-coffee beans by etching along [001] direction for high lithium storage

Zhou, Liangjun; Yi, Zhibin; Lyu, Fucong; Wang, Zhenyu; Zhao, Xingzhong; Sun, Zhifang; Cheng, Hua; Lu, Zhouguang

doi:10.1007/s40843-017-9108-5

Cited by 7 publications

(2 citation statements)

References 35 publications

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“…For example, the cyclic stability and the rate capacity of TMO anodes are not very good because of the volume effects and the low charge diffusion. Among numerous TMOs, Fe 2 O 3 has been regarded as one of the most promising candidates for advanced LIBs because of its high theoretical capacity (1005 mAh/g), which is ~2.7 times greater than that of commercial graphite (372 mAh/g) [ 14 , 15 , 16 , 17 , 18 ]. However, the increased capacity based on its conversion-type lithium storage is generally accompanied by many challenges, such as low electron conductivity, low ion diffusion, and huge volume change [ 19 , 20 , 21 ].…”

Section: Introductionmentioning

confidence: 99%

Hierarchical-Structured Fe2O3 Anode with Exposed (001) Facet for Enhanced Lithium Storage Performance

et al. 2023

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The hierarchical structure is an ideal nanostructure for conversion-type anodes with drastic volume expansion. Here, we demonstrate a tin-doping strategy for constructing Fe2O3 brushes, in which nanowires with exposed (001) facets are stacked into the hierarchical structure. Thanks to the tin-doping, the conductivity of the Sn-doped Fe2O3 has been improved greatly. Moreover, the volume changes of the Sn-doped Fe2O3 anodes can be limited to ~4% vertical expansion and ~13% horizontal expansion, thus resulting in high-rate performance and long-life stability due to the exposed (001) facet and the unique hierarchical structure. As a result, it delivers a high reversible lithium storage capacity of 580 mAh/g at a current density of 0.2C (0.2 A/g), and excellent rate performance of above 400 mAh/g even at a high current density of 2C (2 A/g) over 500 cycles, which is much higher than most of the reported transition metal oxide anodes. This doping strategy and the unique hierarchical structures bring inspiration for nanostructure design of functional materials in energy storage.

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Section: Introductionmentioning

confidence: 99%

Hierarchical-Structured Fe2O3 Anode with Exposed (001) Facet for Enhanced Lithium Storage Performance

et al. 2023

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“…Lithium-ion batteries (LIBs) show vast market value in high-end consumer electronics owing to their high energy density, no memory effect as well as environmental benignity [1][2][3][4]. On the basis of the lithium storage mechanism, three kinds of fundamental anode materials were studied: the intercalation/de-intercalation type such as graphite, Li 4 Ti 5 O 12 , TiNb 2 O 7 [5][6][7], the alloy/de-alloy type such as Si-and Sn-based alloys [8][9][10], and the conversion-type such as cobalt metal oxide and other transition metal oxides [11,12]. Among them, the intercalation/de-intercalation type graphite is the most widely employed material as commercial LIBs' anodes.…”

Section: Introductionmentioning

confidence: 99%

Morphology inheritance synthesis of carbon-coated Li3VO4 rods as anode for lithium-ion battery

Qin

Cheng

et al. 2019

Sci. China Mater.

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Li 3 VO 4 shows great potential as an intercalation/ de-intercalation type anode material for energy-storage devices. Morphology tailoring and surface modification are effective to enhance its lithium storage performance. In this work, we fabricate carbon coated Li 3 VO 4 (C@LVO) rods by a facile morphology inheritance route. The as-prepared C@LVO rods are 400-800 nm in length and 200-400 nm in diameter, and orthorhombic phase with V 5+. The unique core-shell rods structure greatly improves the transport ability of electrons and Li +. Such C@LVO submicron-rods as anode materials exhibit excellent rate capability (a reversible capability of 460, 438, 416, 359 and 310 mA h g −1 at 0.2, 1, 2, 5 and 10 C, respectively) and a high stable capacity of 440 and 313 mA h g −1 up to 300 cycles at 0.2 and 5 C, respectively.

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Hierarchical Porous N‐Doped Carbon Nanosheets Obtained by Organic–Inorganic Bipolymeric Engineering for Improved Lithium–Sulfur Batteries

Fan

Tan

Meng

et al. 2019

Chemistry A European J

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A new route for obtaining N‐doped carbon nanosheets through an in situ solid‐state thermal organic–inorganic polymerization and carbonization method, with glucose and melamine as precursors, due to different temperature intervals for glucose or melamine polymerization, is reported. At a current rate of 0.2 C, as a cathode for a lithium–sulfur cell, the N‐doped carbon nanosheet/sulfur hybrid delivers a high capacity of 1313 and 722 mA h g−1 in the 1st and 200th cycles, respectively; these values are over 40 % higher than that of cells with glucose‐derived carbon nanosheets.

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Facile one-pot fabrication of α-Fe2O3 nano-coffee beans by etching along [001] direction for high lithium storage

Cited by 7 publications

References 35 publications

Hierarchical-Structured Fe2O3 Anode with Exposed (001) Facet for Enhanced Lithium Storage Performance

Hierarchical-Structured Fe2O3 Anode with Exposed (001) Facet for Enhanced Lithium Storage Performance

Morphology inheritance synthesis of carbon-coated Li3VO4 rods as anode for lithium-ion battery

Hierarchical Porous N‐Doped Carbon Nanosheets Obtained by Organic–Inorganic Bipolymeric Engineering for Improved Lithium–Sulfur Batteries

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