Template-free synthesis of ultra-large V2O5 nanosheets with exceptional small thickness for high-performance lithium-ion batteries

Liang, Shuquan; Hu, Yang; Nie, Zhiwei; Huang, Han; Chen, Tao; Cao, Guozhong

doi:10.1016/j.nanoen.2015.01.049

Cited by 138 publications

(78 citation statements)

References 38 publications

(53 reference statements)

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“…The high and stable Li + storage of 3D V 2 O 5 /RGO/CNT composite is superior or fairly comparable to that of recently reported V 2 O 5 -based cathode materials as shown in Fig. 6c 464748495051. The rate capability of composites was evaluated by increasing the C-rate from 0.1 to 20 C and then returning to 1 C as shown in Fig.…”

Section: Resultssupporting

confidence: 74%

Porous V2O5/RGO/CNT hierarchical architecture as a cathode material: Emphasis on the contribution of surface lithium storage

Palanisamy

Jeong

et al. 2016

Sci Rep

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A three dimensional vanadium pentoxide/reduced graphene oxide/carbon nanotube (3D V2O5/RGO/CNT) composite is synthesized by microwave-assisted hydrothermal method. The combination of 2D RGO and 1D CNT establishes continuous 3D conductive network, and most notably, the 1D CNT is designed to form hierarchically porous structure by penetrating into V2O5 microsphere assembly constituted of numerous V2O5 nanoparticles. The highly porous V2O5 microsphere enhances electrolyte contact and shortens Li+ diffusion path as a consequence of its developed surface area and mesoporosity. The successive phase transformations of 3D V2O5/RGO/CNT from α-phase to ε-, δ-, γ-, and ω-phase and its structural reversibility upon Li+ intercalation/de-intercalation are investigated by in situ XRD analysis, and the electronic and local structure reversibility around vanadium atom in 3D V2O5/RGO/CNT is observed by in situ XANES analysis. The 3D V2O5/RGO/CNT achieves a high capacity of 220 mAh g−1 at 1 C after 80 cycles and an excellent rate capability of 100 mAh g−1 even at a considerably high rate of 20 C. The porous 3D V2O5/RGO/CNT structure not only provides facile Li+ diffusion into bulk but contributes to surface Li+ storage as well, which enables the design of 3D V2O5/RGO/CNT composite to become a promising cathode architecture for high performance LIBs.

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Section: Resultssupporting

confidence: 74%

Porous V2O5/RGO/CNT hierarchical architecture as a cathode material: Emphasis on the contribution of surface lithium storage

Palanisamy

Jeong

et al. 2016

Sci Rep

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“…2c). Recent studies have found that this novel structure is conducive to the lithium intercalation and de-intercalation, which lead to the improved electrochemical performance [9,14,35]. More about the structural information and crystal orientation of the nanobelts are characterized by the HR-TEM image and SAED.…”

Section: Resultsmentioning

confidence: 99%

Hydrothermal synthesis of sodium vanadate nanobelts as high-performance cathode materials for lithium batteries

Yang

Fang

Zhou

et al. 2016

Journal of Power Sources

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“…[89] Figure 5e is the schematic illustration of another synthesis route to fabricate V 2 O 5 nanosheets. [90] Nanosheets composed of metastable monoclinic VO 2 (B) were obtained. As shown in Figure 5f, as-prepared VO 2 (B) nanosheets have the thickness of only 2-5 nm, corresponding to 3-8 single atomic layers.…”

Section: One-dimensional V 2 O 5 Nanostructuresmentioning

confidence: 99%

Recent Advances in Nanostructured Vanadium Oxides and Composites for Energy Conversion

Liu

Tang

et al. 2017

Advanced Energy Materials

220

127

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Vanadium oxides are known for their multioxidation states and diverse crystalline structures. Owing to their excellent interactions with molecules or ions, outstanding catalytic activities, and/or strong electron–electron correlations, nanostructured vanadium oxides have been extensively studied for energy conversion in the recent years. Here is a review of the recent advances in the development of nanostructured vanadium oxides and their applications. The synthesis strategies and structural properties of various vanadium oxide nanostructures, including vanadium dioxide (VO2), vanadium pentoxide (V2O5), and others, are summarized. The applications of vanadium oxides in energy conversion are discussed, focusing on three important types of energy sources: chemical energy (LIBs, pseudocapacitors and fuel cells), solar energy (photovoltaics and photocatalytic hydrogen evolutions), and heat (thermoelectric generation). Finally, conclusion with our remarks on the prospects of nanostructured vanadium oxides in energy conversion are provided.

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Template-free synthesis of ultra-large V2O5 nanosheets with exceptional small thickness for high-performance lithium-ion batteries

Cited by 138 publications

References 38 publications

Porous V2O5/RGO/CNT hierarchical architecture as a cathode material: Emphasis on the contribution of surface lithium storage

Porous V2O5/RGO/CNT hierarchical architecture as a cathode material: Emphasis on the contribution of surface lithium storage

Hydrothermal synthesis of sodium vanadate nanobelts as high-performance cathode materials for lithium batteries

Recent Advances in Nanostructured Vanadium Oxides and Composites for Energy Conversion

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