Synthesis and structure refinement studies of LiNiVO4 electrode material for lithium rechargeable batteries

Prakash, D.; Masuda, Yoshitake; Sanjeeviraja, C.

doi:10.1007/s11581-012-0720-1

Cited by 25 publications

(7 citation statements)

References 26 publications

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“…The peak signals of Bi 4f 7/2 and Bi 4f 5/2 states are observed at the values of binding energies 158.6 and 163.9 eV, ascribed to the Bi 3+ state, which is consistent with the reported data . The binding energy separation of states corresponding to Bi 4f peaks is at 5.32 eV, which is also consistent with reported spin–orbit splitting measured in Bi 2 O 3 and Bi 11 VO 19 nanoparticles by the Pechini method. , Figure c shows the states of V 2p included regions 2p 3/2 and 2p 1/2 at binding energies 515.7 and 523.1 eV, respectively, with spin–orbit splitting of 7.4 eV signifying the 5+ state of V. The binding energy values are well-matched with the reported values for vanadates (V 5+ ) in LiNiVO 3 and BiVO 4 compounds, signifying that the V 5+ ions are dominant in the present Bi 11 VO 19 compound. The peak for oxygen 1s state occurs at the binding energy of 529.3 eV, confirming the oxygen to be in the O 2– state which is related to Bi–O or V–O chemical bonding in Bi 11 VO 19 .…”

Section: Results and Discussionsupporting

confidence: 89%

Electronic Structure of Visible Light-Driven Photocatalyst δ-Bi₁₁VO₁₉ Nanoparticles Synthesized by Thermal Plasma

et al. 2018

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Size confinement for tailoring of electronic structures can in principle be explored for enhancement of photocatalytic properties. In the present work, vanadium-doped bismuth oxide nanoparticles, with an average particle size of 36 nm, are synthesized for the first time, using the thermal plasma method, in large scale with high yield to explore for photocatalytic applications. The electronic and crystallographic structures of the sample are studied experimentally and theoretically. Systematic investigations of the electronic structure of the fluorite type cubic phase of Bi 11 VO 19 nanoparticles are reported for the first time. Enhancement is observed in the photocatalytic activity as compared to other delta phases of bismuth vanadate. The valence band is found to comprise mainly of O 2p states, whereas the conduction band arises from V 3d states giving rise to a band gap value of 2.26 eV. Absence of excess O in δ-Bi 2 O 3 results in shrinking of the band gap because of O 2p, Bi 6s and 6p states from the surrounding atoms at doping sites. Bi 11 VO 19 nanoparticles show an efficient visible light absorption and exhibit excellent photodegradation properties of methylene blue solution under visible light irradiation.

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Section: Results and Discussionsupporting

confidence: 89%

Electronic Structure of Visible Light-Driven Photocatalyst δ-Bi₁₁VO₁₉ Nanoparticles Synthesized by Thermal Plasma

et al. 2018

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“…Two dominated XPS peaks at 517.2 and 524.6 eV can be observed, which are assigned to the V‐2P 3/2 and V‐2P 1/2 , respectively. These binding energy values are close to those reported for V(V) in some vanadates such as bismuth vanadate, LiVO 3, and LiNiVO 4 . This confirms that there are the dominated V 5+ ions in SrBi 3 VO 8 .…”

Section: Resultssupporting

confidence: 87%

“…These binding energy values are close to those reported for V (V) in some vanadates such as bismuth vanadate, 38 LiVO 3,39 and LiNiVO 4 . 40 This confirms that there are the dominated V 5+ ions in SrBi 3 VO 8 . The Bi-4f XPS curve provided in Fig.…”

Section: August 2015supporting

confidence: 65%

Visible‐Light‐Induced Degradation of Methylene Blue by SrBi₃VO₈ Nanoparticles

Wang

Huang

et al. 2015

J. Am. Ceram. Soc.

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Nanosized particles of strontium bismuth vanadate SrBi3VO8 were prepared via the Pechini method on the base of citrate‐complexation route. The samples were characterized using X‐ray powder diffraction (XRD), scanning electron microscope (SEM), energy dispersive X‐ray spectra (EDX), X‐ray photoelectron spectroscopic (XPS), and UV–vis absorption spectrum. This bismuth‐containing vanadate presents an efficient absorption in the UV–visible light wavelength region with a narrow band‐gap energy of 2.36 eV and an indirect allowed electronic transition. It is well‐known that hybridization of the 6s and 6p orbitals of Bi3+ could result in lone electron pair and yield some very interesting properties. The photocatalytic activities of SrBi3VO8 nanoparticles were evaluated by the photodegradation of methylene blue (MB) under visible light irradiation in air atmosphere. These results indicate that SrBi3VO8 could be a potential photocatalyst driven by visible light. To understand the charge generation and separation process, the luminescence as well as the decay lifetimes was investigated in the same samples for photocatalysis.

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“…The precursors that were predicted in the proposed mechansim were Sn 3 (OH) 4 As can be seen in Fig. 2, the Li 1 s XPS spectrum shows a peak with its center located at binding energy of 55.17 eV which is in good agreement with that for LiNiVO 4 [19]. The Sn 3d spectrum has two characteristic peaks with binding energies of 486.6 eV (3d 5/2 ) and 495.1 eV (3d 3/2 ), respectively.…”

Section: Li-ion Cell Fabricationsupporting

confidence: 71%

A novel LiSnVO4 anode material for lithium-ion batteries

Teo

Buraidah

Arof

2015

Ionics

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In this work, a new material LiSnVO 4 has been prepared via sol-gel method utilizing ammonium metavanadate, acetates of tin and lithium as starting materials, and nitric acid and oxalic acid as complexing agents. The amount of starting materials used has been chosen so that the mole ratio of Li/Sn/V is 1:1:1. The sol-gel precursor has been sintered at 700°C for 6 h. Based on thermogravimetry analysis (TGA) analysis, the formation mechanism suggested the product to be LiSnVO 4 . Energy-dispersive X-ray analysis (EDX) reveals the~1:1 ratio of Sn:V. EDX results agree reasonably with the formation mechanism from TGA analysis that the Sn:V ratio is 1:1. Results from X-ray photoelectron spectroscopy (XPS) indicate that the oxidation states of Li, Sn, and Vare +1, +2, and +5, respectively. Since there is no ICDD data available to match the XRD diffractogram of the material obtained, CMPR and powder diffraction data interpretation and indexing program (POWD) softwares have been used to predict the crystal structure system to be tetragonal (similar to that of SnO 2 ). A fabricated LiSnVO 4 //Li cell can deliver a large initial irreversible discharge capacity of 1270 mAh g −1 and reversible capacity of 305.4 mAh g −1 at the end of second cycle, which drops to 211 mAh g −1 at the end of 53rd cycle. The capacity retention is 69 % with respect to the second discharge capacity.

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Synthesis and structure refinement studies of LiNiVO4 electrode material for lithium rechargeable batteries

Cited by 25 publications

References 26 publications

Electronic Structure of Visible Light-Driven Photocatalyst δ-Bi₁₁VO₁₉ Nanoparticles Synthesized by Thermal Plasma

Electronic Structure of Visible Light-Driven Photocatalyst δ-Bi₁₁VO₁₉ Nanoparticles Synthesized by Thermal Plasma

Visible‐Light‐Induced Degradation of Methylene Blue by SrBi₃VO₈ Nanoparticles

A novel LiSnVO4 anode material for lithium-ion batteries

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Synthesis and structure refinement studies of LiNiVO4 electrode material for lithium rechargeable batteries

Cited by 25 publications

References 26 publications

Electronic Structure of Visible Light-Driven Photocatalyst δ-Bi11VO19 Nanoparticles Synthesized by Thermal Plasma

Electronic Structure of Visible Light-Driven Photocatalyst δ-Bi11VO19 Nanoparticles Synthesized by Thermal Plasma

Visible‐Light‐Induced Degradation of Methylene Blue by SrBi3VO8 Nanoparticles

A novel LiSnVO4 anode material for lithium-ion batteries

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Product

Resources

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Electronic Structure of Visible Light-Driven Photocatalyst δ-Bi₁₁VO₁₉ Nanoparticles Synthesized by Thermal Plasma

Electronic Structure of Visible Light-Driven Photocatalyst δ-Bi₁₁VO₁₉ Nanoparticles Synthesized by Thermal Plasma

Visible‐Light‐Induced Degradation of Methylene Blue by SrBi₃VO₈ Nanoparticles