The electrochemical performanceand multielectron reaction mechanism of NiV2O6 as anovel anode material for lithium-ion batteries

Zhou, Zhen; Zhang, Jun; Chen, Siyuan; Yao, Hanyu; Zhao, Yanming; Kuang, Quan; Fan, Qinghua; Dong, Youzhong

doi:10.1016/j.electacta.2020.136979

Cited by 17 publications

(9 citation statements)

References 44 publications

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“…It worth noting that the initial CV curve is remarkably different from the subsequent CV curves. This significant difference may be associated with the decomposition of electrolytes on the electrode surface, irreversible side reactions, and the formation of SEI film. − Figure b presents the first three discharge/charge profiles of the CaV 6 O 16 ·3H 2 O/GO hybrid paper electrode at 50 mA g –1 in the voltage range of 3.3–0.01 V. The initial discharge/charge capacities of the hybrid paper anode are 986.7/731.7 mA h g –1 . In the second cycle, the discharge capacity decreases to 697.8 mA h g –1 .…”

Section: Results and Discussionmentioning

confidence: 99%

Calcium Vanadate Micro/Nanostructures for Lithium-Ion Batteries

Zhang

Wang

Hou

et al. 2022

ACS Appl. Nano Mater.

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The ability to control the composition and structure of inorganic compounds by simple synthesis methods is essential to the design and development of electrode materials of lithium-ion batteries (LIBs). Here we report the controllable synthesis of calcium vanadate micro/nanostructures via a simple hydrothermal method. By easily adjusting the pH value of a reaction system, a Ca10V6O25 straw-bundle-like structure, Ca2V2O7 microplatelet, and CaV6O16·3H2O sponge-like macrostructure can be selectively synthesized. The regulation mechanism of different calcium vanadate micro/nanostructures was investigated. In addition, CaV6O16·3H2O and CaV6O16·3H2O/GO self-standing papers were obtained by pressing the sponge-like macrostructure and vacuum filtration, respectively. The electrochemical performances of the CaV6O16·3H2O and CaV6O16·3H2O/GO papers as the self-standing and binder-free anodes for LIBs were investigated for the first time. The as-obtained CaV6O16·3H2O/GO hybrid paper anode exhibits a high discharge capacity of 664.0 mA h g–1 after 250 cycles at 200 mA g–1 and good cycling stability, demonstrating its potential application as a self-standing anode for LIBs.

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Section: Results and Discussionmentioning

confidence: 99%

Calcium Vanadate Micro/Nanostructures for Lithium-Ion Batteries

Zhang

Wang

Hou

et al. 2022

ACS Appl. Nano Mater.

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“…Metal vanadates (MV x O y ), which are related to vanadium oxides and have tunable oxidation states (from +2 to +5), have received extensive interest for potential applications in electrochemistry, [ 20 ] lithium‐ion batteries, [ 21 ] photocatalysis, [ 22 ] gas sensing, [ 23 ] and supercapacitors. [ 24 ] Among them, bismuth vanadate (BiVO 4 ) is one of the most widely used and most intensely studied photocatalysts for water splitting, organic pollutant degradation, due to its narrow bandgap, good dispersibility, nontoxicity, low cost, and high photostability.…”

Section: Introductionmentioning

confidence: 99%

Bandgap Engineering and Oxygen Vacancies of Ni_xV₂O_5+x (x = 1, 2, 3) for Efficient Visible Light‐Driven CO₂ to CO with Nearly 100% Selectivity

et al. 2022

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It is difficult to design a new single‐component photocatalyst to simultaneously possess a bandgap small enough to absorb most of sunlight and strong redox ability to reduce CO2 into value‐added chemical fuels. Herein, bandgap engineering of nickel vanadate compounds (NixV2O5+x, x = 1, 2, 3) is rationally designed to overcome the above challenge. Through changing the Ni:V ratio, the bandgap and band edge positions of nickel vanadates can be regulated, enabling Ni2V2O7 and Ni3V2O8 to reduce CO2 in the presence of water under visible light irradiation that do not exist in NiV2O6. Ni 3d orbitals of Ni2V2O7 and Ni3V2O8 replace V 3d orbitals of NiV2O6 and hybridize with O 2p orbitals to form the valence band maximums, resulting in their negative shifts. Meanwhile, the relatively weaker effect of the crystal field in VO4 tetrahedron over Ni2V2O7 and Ni3V2O8 results in less V 3d split, thus making the conduction band edges to shift upward. In addition, higher concentration of oxygen vacancies over Ni2V2O7 can further enhance its photocatalytic activity for CO2 conversion into CO with nearly 100% selectivity by prolonging the lifetime of photogenerated carriers and improving the chemisorption of CO2.

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“…Designing hydrated metal oxides to modulate interlayer spacing is considered an effective way to solve these problems effectively. [24][25][26][27] Attributed to multi-electron reactions and synergistic effects between two metal elements, hydrated metal oxides such as NiV 2 O 6 , MnV 2 O 6 , VOMoO 4 , Ni 2 V 2 O 7 and FeMoO 4 [28][29][30][31][32] exhibit excellent electrochemical performance as anodes of LIBs and have been widely reported. Considering the existence of multiple valence states of Mo (from 6+ to 0), as one of the binary transition metal oxides, MgMoO 4 is expected to be a high specific capacity anode material for LIBs.…”

Section: Introductionmentioning

confidence: 99%

MgMoO₄ as an anode material for lithium ion batteries and its multi-electron reaction mechanism

Zhou

Zhao

et al. 2022

Dalton Trans.

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The electrochemical performanceand multielectron reaction mechanism of NiV2O6 as anovel anode material for lithium-ion batteries

Cited by 17 publications

References 44 publications

Calcium Vanadate Micro/Nanostructures for Lithium-Ion Batteries

Calcium Vanadate Micro/Nanostructures for Lithium-Ion Batteries

Bandgap Engineering and Oxygen Vacancies of Ni_xV₂O_5+x (x = 1, 2, 3) for Efficient Visible Light‐Driven CO₂ to CO with Nearly 100% Selectivity

MgMoO₄ as an anode material for lithium ion batteries and its multi-electron reaction mechanism

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The electrochemical performanceand multielectron reaction mechanism of NiV2O6 as anovel anode material for lithium-ion batteries

Cited by 17 publications

References 44 publications

Calcium Vanadate Micro/Nanostructures for Lithium-Ion Batteries

Calcium Vanadate Micro/Nanostructures for Lithium-Ion Batteries

Bandgap Engineering and Oxygen Vacancies of NixV2O5+x (x = 1, 2, 3) for Efficient Visible Light‐Driven CO2 to CO with Nearly 100% Selectivity

MgMoO4 as an anode material for lithium ion batteries and its multi-electron reaction mechanism

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Product

Resources

About

Bandgap Engineering and Oxygen Vacancies of Ni_xV₂O_5+x (x = 1, 2, 3) for Efficient Visible Light‐Driven CO₂ to CO with Nearly 100% Selectivity

MgMoO₄ as an anode material for lithium ion batteries and its multi-electron reaction mechanism