XPS and Raman spectroscopic characterization of LiMn<sub>2</sub>O<sub>4</sub> spinels

Ramana, C. V.; Massot, M.; Julien, C.

doi:10.1002/sia.2022

Cited by 212 publications

(138 citation statements)

References 12 publications

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“…The band at approximately 191 cm −1 is attributed to the F 2g (3) mode of the tetrahedral CoO 4 sites [64]. This result further confirms the formation of the Co 3 O 4 nanocrystals.…”

Section: Resultssupporting

confidence: 60%

Solid-state thermal decomposition of the [Co(NH3)5CO3]NO3·0.5H2O complex: A simple, rapid and low-temperature synthetic route to Co3O4 nanoparticles

Farhadi¹,

Safabakhsh²

2012

Journal of Alloys and Compounds

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“…The band at approximately 191 cm −1 is attributed to the F 2g (3) mode of the tetrahedral CoO 4 sites [64]. This result further confirms the formation of the Co 3 O 4 nanocrystals.…”

Section: Resultssupporting

confidence: 60%

Solid-state thermal decomposition of the [Co(NH3)5CO3]NO3·0.5H2O complex: A simple, rapid and low-temperature synthetic route to Co3O4 nanoparticles

Farhadi¹,

Safabakhsh²

2012

Journal of Alloys and Compounds

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“…[ 19 ] The two strong Raman signals at 595 and 635 cm −1 are associated with the symmetric Mn−O stretching modes in the spinel Li 4 Mn 5 O 12 structure, in contrast to 580 and 625 cm −1 from LiMn 2 O 4 . [ 20 ] The higher stretching frequency is attributed to the shorted Mn−O bonding length in Li 4 Mn 5 O 12 spinel. All the representative peaks of Li 2 MnO 3 disappear except a weak one at 373 cm −1 .…”

Section: Conversion Of Ion-exchanged Layered Derivative To Spinelstrumentioning

confidence: 98%

An Ion‐Exchange Promoted Phase Transition in a Li‐Excess Layered Cathode Material for High‐Performance Lithium Ion Batteries

Zhao

Huang

Gao

et al. 2015

Advanced Energy Materials

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batteries crucially relies on electrochemical characteristics of electrode materials, i.e., anode and cathode materials. [ 1 ] Various alternative anode materials have recently been developed, including silicon-based composites, [ 2,3 ] nanoscale transition metal oxides, [ 4,5 ] titanium-based materials, [ 6,7 ] and graphene-based sulfi de, [ 8 ] etc. These materials have demonstrated excellent rate capability and specifi c capacities several times higher than conventional graphite anodes. Since capacities of cathode materials are usually much lower than those of anodes, the cathode is considered as the limiting factor for lithium ion batteries. To a great extent, development of newgeneration lithium ion batteries is limited by the low energy density, low operating voltage, and poor rate capability of cathode materials. [ 9 ] Recently, the emerging Li-excess layered oxides have attracted a great deal of research efforts due to their high capacities. These cathode materials can be cycled over a broad voltage range between 2.0 and 4.8 V versus Li/Li + and deliver specifi c capacities higher than 250 mAh g −1 . They also offer many other advantages such as low cost, environmental benignity, and safety. [ 10 ] A representative example is Li-excess ternary manganese-nickel-cobalt oxide, composed

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“…1,2 As such, there is a considerable interest in the synthesis and characterization of transition metal oxide low-dimensional structures, such as thin films, nanocrystals, nanorods, and so on, in view of their potential application as cathode materials in lithium batteries. [1][2][3][4][5][6][7][8][9][10] LiMO 2 ͑M = Co, Ni, and Mn͒ and their derivatives have been considered and extensively studied in recent years. [1][2][3][4][5][6][7][8][9][10][11][12] The commercially available rechargeable lithium batteries employ LiCoO 2 .…”

mentioning

confidence: 99%

Pulsed-laser deposited LiNi0.8Co0.15Al0.05O2 thin films for application in microbatteries

Ramana

Zaghib

Julien

2007

Applied Physics Letters

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Li Ni 0.8 Co 0.15 Al 0.05 O 2 thin films were prepared by pulsed-laser deposition at varying growth conditions. It was found that the growth and microstructure of the films is highly dependent on the target composition, deposition temperature, and the reactive atmosphere during laser ablation. The x-ray diffraction and Raman spectroscopic measurements indicated the high-structural quality of the grown LiNi0.8Co0.15Al0.05O2 thin films. A phase diagram mapping the effect of temperature on the microstructure of LiNi0.8Co0.15Al0.05O2 thin films has been proposed. The measurements of charge-discharge profiles of Li microcells using the LiNi0.8Co0.15Al0.05O2 films grown at 450°C demonstrate their possible applications in microbatteries. A stable capacity of 98μAh∕cm2μm was obtained in the potential range of 4.2–2.5V for LiNi0.8Co0.15Al0.05O2 films grown at 450°C.

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XPS and Raman spectroscopic characterization of LiMn₂O₄ spinels

Cited by 212 publications

References 12 publications

Solid-state thermal decomposition of the [Co(NH3)5CO3]NO3·0.5H2O complex: A simple, rapid and low-temperature synthetic route to Co3O4 nanoparticles

Solid-state thermal decomposition of the [Co(NH3)5CO3]NO3·0.5H2O complex: A simple, rapid and low-temperature synthetic route to Co3O4 nanoparticles

An Ion‐Exchange Promoted Phase Transition in a Li‐Excess Layered Cathode Material for High‐Performance Lithium Ion Batteries

Pulsed-laser deposited LiNi0.8Co0.15Al0.05O2 thin films for application in microbatteries

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XPS and Raman spectroscopic characterization of LiMn2O4 spinels

Cited by 212 publications

References 12 publications

Solid-state thermal decomposition of the [Co(NH3)5CO3]NO3·0.5H2O complex: A simple, rapid and low-temperature synthetic route to Co3O4 nanoparticles

Solid-state thermal decomposition of the [Co(NH3)5CO3]NO3·0.5H2O complex: A simple, rapid and low-temperature synthetic route to Co3O4 nanoparticles

An Ion‐Exchange Promoted Phase Transition in a Li‐Excess Layered Cathode Material for High‐Performance Lithium Ion Batteries

Pulsed-laser deposited LiNi0.8Co0.15Al0.05O2 thin films for application in microbatteries

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XPS and Raman spectroscopic characterization of LiMn₂O₄ spinels